42nd week of 2008 patent applcation highlights part 29 |
Patent application number | Title | Published |
20080253343 | COMMUNICATION TERMINAL AND METHOD OF SEARCHING - A communication terminal capable of wireless LAN communication includes: a search unit that searches for a base station that should be an access point; a database that stores an application of the wireless LAN communication and search information utilized for searching associated with the application; a set-up unit that sets up the application; and a determination unit that determines search information in accordance with the application, by retrieving search information corresponding to the application from the storage unit. The search unit searches for a search-targeted base station that should be an access point, by targeting only a base station that corresponds to a base station identifier contained in the search information, for a predetermined period. | 2008-10-16 |
20080253344 | Wireless LAN medium access controller supporting mode change and mode change method therreof - A wireless LAN medium access controller supporting mode change and the mode change method thereof are proposed. A physical layer detects signal strength in the environment and writes a mode index value of the stronger signal into a register. When the written mode index value is different from a mode index value in the communication system, a medium access controller is informed to perform mode change. The physical layer then sends out an interrupt signal to a central processor and sends the mode index value to the central processor for comparison via a DMA module and a memory. An interface module is used to access the mode index value in the memory for providing an external interface for the medium access control layer. When the mode index value doesn't conform to the signal in the environment, a software layer in the medium access controller is used for mode change. | 2008-10-16 |
20080253345 | Wireless communications circuitry with antenna sharing capabilities for handheld electronic devices - Handheld electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may have first and second transceiver circuits that operate in the same radio-frequency band using different communications protocols. The wireless communications circuitry may have a configurable radio-frequency combiner and divider circuit that is coupled between an antenna and the first and second transceiver circuits. The combiner and divider circuit can be configured to support simultaneous use of the antenna by the first and second transceiver circuits. When simultaneous use is not required, the combiner and divider circuit can be used by either the first transceiver circuit or the second transceiver circuit. | 2008-10-16 |
20080253346 | MAC ARCHITECTURE IN WIRELESS COMMUNICATION SYSTEMS SUPPORTING H-ARQ - A medium access control-high speed (MAC-hs) comprises a hybrid automatic repeat request (H-ARQ) device configured to receive data blocks over a wideband-code division multiple access (W-CDMA) high speed-downlink shared channel (HS-DSCH). The H-ARQ device generates an acknowledgement (ACK) or negative acknowledgement (NYACK) for each said data block received. Each received data block having a transmission sequence number. The H-ARQ device receives a new transmission instead of a pending retransmission at any time. At least one reordering device has an input configured to receive an output of the H-ARQ device and the at least one reordering device configured to reorder the received data blocks based on each received data block's transmission sequence number (TSN). Received data blocks are immediately forwarded for processing for higher layers when the received data blocks are received in sequence. | 2008-10-16 |
20080253347 | Notification of Incumbent Users in Dynamic Spectrum Access Wireless Systems - A wireless system and method including a medium access control (MAC) layer adapted to notify a wireless station of the presence or absence of an incumbent wireless are described. | 2008-10-16 |
20080253348 | Transmitter Device, Bridge Device, and Receiver Device, and Network System Including the Devices - A network system includes a transmitting apparatus; a transmission path; a relaying apparatus that receives real time information transmitted through the transmission path; a wireless network; and a receiving apparatus that receives data transmitted through the wireless network. The relaying apparatus has a reference time generating part that generates a reference time independently of the transmitting apparatus; and a network transmitting part that transmits both the real time information received from the transmitting apparatus and the reference time via the wireless network. The receiving apparatus has a network receiving part that receives the real time information and reference time transmitted through the wireless network; an internal time management part that generates an internal time from the reference time received by the wireless network receiving part; and a real time information processing part that decodes the real time information received by the wireless network receiving part to reproduce the content data and that then outputs the content data, based on the internal time generated by the internal time management part. This network system allows the receiving apparatus to synchronize and output video and audio, regardless of singularity or plurality of the receiving apparatus. | 2008-10-16 |
20080253349 | Method of and an Apparatus for Effecting a Smooth Transition Between Adjacent Symbol Bursts Transmitted in Different Modulation Formats - A smooth transition is effected between adjacent digital information bursts transmitted in different modulation formats by selecting a first sequence for a first digital symbol burst to be transmitted, which first sequence comprises a set of end symbols with a first particular symbol pattern. A second sequence for a second digital symbol burst is also selected for transmission after the first digital symbol burst, which second sequence comprises a set of start symbols with a second particular symbol pattern. The first digital symbol burst is modulated in a first modulation format and the second digital symbol burst is modulated in a second modulation format different than the first modulation format. Thereafter, the modulated first and second digital symbol bursts are transmitted. The transmission of the second digital symbol burst starts upon completion of the transmission of the first digital information symbol at an instant so selected that transmission of the end set of bits of the first code sequence is synchronized in time with the start set of bits of the second code sequence. | 2008-10-16 |
20080253350 | Method and Device Using Randomized Hough Transform for Detecting Radio Systems with Periodic Emission Pattern - The invention includes a method and device for identifying opportunities to transmit in a radio network. The method and device listen for a first, second, and third period of time to detect first, second, and third busy slots. A processor recognizes a sequence of the first, second, and third busy slots as a function of time, performs a Randomized Hough Transform on the sequence, generates a histogram based on the Randomized Hough Transform, identifies peaks in the histogram, determines whether the peaks correspond to a known radar, and identifies an opportunity to transmit. | 2008-10-16 |
20080253351 | MULTIRADIO POWER AWARE TRAFFIC MANAGEMENT - A system for managing the operation of a plurality of radio modules integrated within the same wireless communication device. In at least one embodiment of the present invention, time may be allocated for use in communicating over one or more wireless communication mediums. This time may be allocated based on a determination that a maximum power usage threshold will not be exceeded, and that potential communication conflicts may be avoided, over a period of time. The allocation may result in an operational schedule that may be utilized by radio modules in the wireless communication device that support the one or more wireless communication mediums. | 2008-10-16 |
20080253352 | Communication in Dual Protocol Environments - A radio transceiver comprising: a signal receiver for receiving signals in the form of bursts according to a first protocol; a transmitter for transmitting signals in the form of bursts according to a second protocol, the first and second protocols being such that signals of the first and second protocols are mutually interfering; a transmission scheduler for predicting, based on the timings of signal bursts of the first protocol received by the receiver, the timings of future bursts of the first protocol and arranged to influence the transmitter to transmit bursts according to the second protocol so as to avoid the signal bursts of the first protocol as predicted. | 2008-10-16 |
20080253353 | MIMO Polar, Non-Quadrature, Cross-Correlated Quadrature GSM, TDMA, Spread Spectrum, CDMA, OFDM, OFDMA and Bluetooth Systems - Multiple Input Multiple Output (MIMO) system for receiving signals received from multiple inputs and transmitting signals to multiple output signal transmitters and multiple receivers for receiving transmitted signals. Processor for processing received location finder signals and for providing location finder processed baseband signals to a polar modulator for polar modulation of processed baseband signal. Processors for providing processed baseband signals to a non-quadrature or a quadrature modulator for modulation of processed baseband signal. Processor for processing and providing Orthogonal Frequency Division Multiplex Access (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) signals for modulation and to multiple output transmitters. Processor for processing received signals and for providing processed baseband signals to a cross-correlator for cross-correlating and filtering in-phase and quadrature-phase baseband signals and for providing cross-correlated quadrature signals to a quadrature modulator for modulation of cross-correlated filtered baseband signal. Spread spectrum processor and cross-correlator for spread spectrum processing and cross-correlating in-phase and quadrature-phase baseband signals. Time Division Multiple Access (TDMA), Global Mobile System (GSM) processors and baseband filters for providing TDMA, Bluetooth, spread spectrum and GSM system signals used in MIMO systems. Receiver system comprising two receivers for reception and demodulation of the transmitted signal. | 2008-10-16 |
20080253354 | COMMUNICATION APPARATUS, CONTROL METHOD FOR CONTROLLING COMMUNICATION APPARATUS, PROGRAM FOR CONTROLLING COMMUNICATION APPARATUS, AND STORAGE MEDIUM STORING SUCH PROGRAM - A communication apparatus determines a hibernation period on the basis of the amount of an offset in beacon period start timing among multiple beacon groups. The communication apparatus is placed in a hibernation status in accordance with the determined hibernation period. Thus, an offset in beacon period start timing among the beacon groups that would occur while the device is in hibernation can be prevented and the need for merging beacon groups and decrease in data rate during such merging are prevented. | 2008-10-16 |
20080253355 | Wireless Base Station Apparatus and Wireless Communication System Using That Apparatus - A radio base-station apparatus with improved frame transmission efficiency by avoiding interference of preambles and frame control information between sectors of a cell or between cells with a frequency reuse factor. In the apparatus OFDMA multiple-access processing is performed for each of a plurality of sectors of a cell, and frames made of logical subchannel numbers and OFDMA symbol numbers are configured in synchronization respectively for the plurality of sectors, and offsets are added to the beginnings of given frames such that the preambles and frame control information arranged sequentially from the beginnings of the frames do not overlap on the OFDMA symbol numbers. | 2008-10-16 |
20080253356 | METHOD AND SYSTEM FOR A POWER REDUCTION SCHEME FOR ETHERNET PHYS - Aspects of a method and system for a power reduction scheme for Ethernet PHYs are provided. An Ethernet PHY in a link partner may disable transmission via a transmit DAC integrated during an inactive connection, 10Base-T autonegotiation operation, and/or active 10Base-T connection with no data packet transmission. The DAC may be a voltage mode or current mode DAC. The PHY or a MAC device may determine when to disable transmission via the DAC. In this regard, the PHY or the MAC device may generate appropriate signals for disabling the transmission. The DAC may be enabled for transmission by the PHY or the MAC device when a connection becomes active or when an active 10Base-T connection is ready to transmit data. Moreover, the PHY may enable transmission via the DAC when operating in a forced 10Base-T mode of operation and the connection to the link partner is active. | 2008-10-16 |
20080253357 | COMPUTER SYSTEM WITH INTERNET PHONE FUNCTIONALITY - A computer system with internet phone functionality is provided. The computer system keeps running application programs when it turns the processing rate and the voltage of the central processor unit down (e.g. enter to the sleep mode). When the internet phone or a traditional telephone has an incoming call, the computer would be waked up immediately to prevent missing any incoming call from the internet phone or the traditional telephone. | 2008-10-16 |
20080253358 | Terminal-to-terminal communication connection control method using IP transfer network - Both a connection server and a relay connection server are installed in an IP transfer network; a function similar to a line connection control of a subscriber exchanger is applied to a connection server; a function similar to a line connection control of a relay exchanger is applied to the relay connection server; and a terminal-to-terminal communication connection control method with using the IP transfer network is realized in such a manner that a telephone set and a terminal such as an IP terminal and a video terminal transmit/receive an initial address message, an address completion message, a call pass message, a response message, a release message and a release completion message, which can be made in a 1-to-1 correspondence relationship with line connection control messages of the common line signal system. Furthermore, while an address administration table is set to a network node apparatus of an IP transfer network, means for registering addresses of the terminals into this address administration table is employed, so that an IP packet communication by a multicast manner can be realized with improving information security performance. | 2008-10-16 |
20080253359 | Terminal-to-terminal communication connection control method using IP transfer network - Both a connection server and a relay connection server are installed in an IP transfer network; a function similar to a line connection control of a subscriber exchanger is applied to a connection server; a function similar to a line connection control of a relay exchanger is applied to the relay connection server; and a terminal-to-terminal communication connection control method with using the IP transfer network is realized in such a manner that a telephone set and a terminal such as an IP terminal and a video terminal transmit/receive an initial address message, an address completion message, a call pass message, a response message, a release message and a release completion message, which can be made in a 1-to-1 correspondence relationship with line connection control messages of the common line signal system. Furthermore, while an address administration table is set to a network node apparatus of an IP transfer network, means for registering addresses of the terminals into this address administration table is employed, so that an IP packet communication by a multicast manner can be realized with improving information security performance. | 2008-10-16 |
20080253360 | TERMINAL APPARATUS AND COMPUTER PROGRAM - A terminal apparatus includes a communication unit connected to a private branch exchange and other terminal apparatus; a memory unit for storing address information for the other terminal apparatus; and a controller which, when receiving an incoming call command containing address information for the terminal apparatus as destination information from the private branch exchange via the communication unit, informs a user of the terminal apparatus of an incoming call addressed to the terminal apparatus, generates a substituted incoming call command in which the address information contained in the incoming call command is substituted with the address information for the other terminal apparatus stored in the memory unit, and transmits the substituted incoming call command to the other terminal apparatus via the communication unit so that the other terminal apparatus informs a user of the other terminal apparatus of the incoming call addressed to the terminal apparatus. | 2008-10-16 |
20080253361 | Receiving party based web-to-phone communication - A method for communicating in a communication system, said communication system comprising a network terminal of a network user, a server of a telecommunication company, and a telephone of a receiver, the method comprises the steps of: (A) the receiver registering an encoded object from the telecommunication company, the encoded object is associated with a telephone number; (B) the receiver distributing the encoded object for the network user to identify, (C) the network user clicking the encoded object; (D) in response to the network user's clicking, the server connecting the network terminal to the telephone which uses the telephone number for a communication connection; and (E) the telecommunication company collecting service fee from the receiver. The method can also be applied to Internet-based communication companies where the encoded object can be its customer membership for identification. | 2008-10-16 |
20080253362 | METHOD FOR PROVIDING LOCAL AND TOLL SERVICES WITH LNP, AND TOLL-FREE SERVICES TO A CALLING PARTY WHICH ORIGINATES THE CALL FROM AN IP LOCATION CONNECTED TO A SIP-ENABLED IP NETWORK - A method for providing combined local, toll, toll-free services, and number portability, to a calling party originating calls from an IP-based communication devices which are coupled to an IP-based multi-media service provider. The method includes receiving a SIP INVITE message, which includes a multi-media service identifier, at the multi-provider. The SIP INVITE message represents a call request for a multi-media service. The SIP INVITE message is processed at the multi-media service provider for determining the call request can be satisfied. If the multi-media service provider includes resources for satisfying the call, the multi-media service identifier of the SIP INVITE message is set to a first predetermined state and the call is processed. If the multi-media service provider does not include resources for satisfying the call, the multi-media service identifier of the SIP INVITE message is set to a second predetermined state and the call is processed elsewhere. | 2008-10-16 |
20080253363 | Systems and Methods to Facilitate Real Time Communications and Commerce via Answers to Questions - Methods and systems to facilitate real time communications and commerce via answers presented to questions. One embodiment includes one or more web servers to receive from a second user an answer to a question of a first user, and to present the answer with a communication reference of a connection provider to a third user; a session border controller of the connection provider to interface with a packet switched network; and one or more telecommunication servers of the connection provider coupled with the session border controller to connect the third user to the second user for real time communications in response to a request made via the communication referenced. One embodiment includes: receiving from a second user an answer to a question of a first user; and presenting to a third user the answer with a reference for requesting fee-based content from or real time communications with the second user. | 2008-10-16 |
20080253364 | INFORMATION DELIVERY SYSTEM AND INFORMATION DELIVERY METHOD USING THE SAME - A mobile type service provider terminal registers a service providing area to a presence management server before a service starts. The presence management server creates a status management table of the mobile type service provider terminal. When the presence of the mobile type service provider terminal is detected in an area, the terminal registers information contents, which are delivered to subscribers, to an information delivery server. When the information delivery server stores the registered information contents to an information contents database and completes the creation of an information providing table, it notifies a service control server of the information. The service control server creates a message with reference to the information notified from the information delivery server and delivers it to the subscribers. | 2008-10-16 |
20080253365 | Wireless networking communication system and communicating method for VOIP - A wireless networking communication system is disclosed. The wireless networking communication system includes a wireless communicating gateway connected to a personal computer, which in turn connects with a network, and a handheld communicating device in communication with a first communicating transceiver. The wireless communicating gateway includes the first communicating transceiver, and a first processor for determining type of operating system of the computer and detecting connection of the computer to the network. The handheld communicating device includes a second communicating transceiver in communication with the wireless communicating gateway, and a second processor for converting voice signals into digital signals and detecting connection of the wireless communicating gateway to the network. | 2008-10-16 |
20080253366 | L2/L3 MULTI-MODE SWITCH INCLUDING POLICY PROCESSING - Methods and apparatus for processing data packets in a computer network are described. One general method includes receiving a data packet; examining the data packet to classify the data packet including classifying the data packet as a L2 or L3 packet and including determining at least one zone associated with the packet; processing the packet in accordance with one or more policies associated with the zone; determining forwarding information associated with the data packet; and if one or more policies permit, forwarding the data packet toward an intended destination using the forwarding information. | 2008-10-16 |
20080253367 | Method for Establishing Multi Segment Pseudowire Across Domains Having Different Pseudowire Signaling Protocol - A method of establishing a multi-segment pseudowire across domains executing different pseudowire signaling protocols augments the Label Distribution Protocol (LDP) label message to include a MS-PW TLV. The MS-PW TLV carries pseudowire signal 22 FEC TLV protocol information associated with signaling protocols of other segments of the MS-PW. As a result a multi-segment pseudowire can be extended between domains that execute different pseudowire signaling protocols. | 2008-10-16 |
20080253368 | Policy control of multiplexed real time protocol and real time control protocol - A system can include an application function which is configured to indicate per each multiplexed flow to a rules function that a flow includes multiplexed real time protocol data packets and control packets flow and to indicate the status of each component of the multiplexed flow. The rules function can be configured to inform an enforcement function which is configured to detect the multiplexed flows by the IP addresses and port numbers and to detect the multiplexed subcomponents. The enforcement function can be configured to apply separate gating to data packets and control packets according to the status of each subcomponent. | 2008-10-16 |
20080253369 | MONITORING AND CORRECTING UPSTREAM PACKET LOSS - An upstream error controller monitors a media stream at a location upstream from an associated set of receivers receiving the media stream. The upstream error controller sends out suppression notices for any media packets lost upstream causing the receivers to suppress sending lost packet notices. In another embodiment, a repair point joins a primary multicast group with multiple receivers for receiving a native media stream. The repair point also joins a second multicast group receiving multicast backup data for retransmitting or repairing the native media stream that does not include an associated set of receivers. In yet another embodiment, the upstream error controller is used in combination with a hybrid packet repair scheme for adaptively switching among unicast retransmission, multicast retransmission, and Forward Error Correction (FEC). | 2008-10-16 |
20080253370 | MAINTENANCE OF BANDWIDTH ALLOCATION FOR TRAFFIC INCLUDING MULTICASTS - Multicast packets that are received on a port of a network device and forwarded to multiple output ports are stored in memory and respective primary control entries which define them are converted to secondary control entries defining multiple unicast packets before a scheduling algorithm is applied. The packets are reconstituted after the application of the scheduling algorithm has been applied to the control entries. For VPLS packets that are received on a single port and replicated multiple times on one or more output ports, a replication database may be used in conjunction with a replication engine to convert the control entry for a received packet into multiple control entries defining unicast packets for each of the destination ports before the scheduling algorithm is applied. This method is applicable to the replication of packets onto a Virtual Private LAN. | 2008-10-16 |
20080253371 | MULTICAST AND BROADCAST OPERATIONS IN ETHERNET SWITCHES - A switch and a process of operating a switch are described where a received data frame is copied one or more times into a memory before being transmitted out of the switch. The switch and method determine how much space in the memory is needed to store all of the copies of the received data frame and then the switch and method determine locations in the memory for storing the copies of the received data frames. The copies of the received data frame are stored until the ports designated as transmitting the copies of the received data frame are ready. When a port is ready, a copy of the received data frame is read out of the memory and the port is instructed where to locate the copy on a bus. When the port has retrieved the copy of the data frame, it transmits the data frame out of the switch. | 2008-10-16 |
20080253372 | Scheduling packet transmission - Scheduling packet transmission. A plurality of data packets is received, wherein at least a portion of the plurality of data packets is associated with one media unit and comprises different quality information. Profit-to-size ratios or distortion-to-size ratios for the data packets are determined. A plurality of schedules of the data packets are determined utilizing dynamic programming for a plurality of data rates based at least in part on the profit-to-size ratios or distortion-to-size ratios. | 2008-10-16 |
20080253373 | System and Method for Supporting Flexible Overlays and Mobility in Ip Communication and Computer Networks - There is provided a system and method for providing a simple yet flexible overlay network on top of any IP networks to enable diverse network applications whereby much of the rigidities of IP protocol suite are eliminated without any modifications to the applications. In particular, the system includes: a plurality of c-nodes; one or more source terminal nodes connected to an IP network; and one or more destination terminal nodes connected to the IP network. Here, the source terminal nodes send IP packets over the plurality of c-nodes to the destination terminal nodes to accomplish arbitrary communications between arbitrary groups of the source terminal nodes to arbitrary groups of the destination terminal nodes. More specifically, a method employing the system utilizes the concept of connection ID and headers that can be inserted anywhere in the IP packet. | 2008-10-16 |
20080253374 | Apparatus and method for communicating with receiving end via internet - The invention provides a method for a transmitting end to communicate with a receiving end, which is assigned with an IP address, via the Internet. The method of the invention includes the steps of: the transmitting end receives an information stream from a DVB-H network; the information stream contains a DVB-H packet header and a datagram, which contains an IP packet header and an IP packet payload. Additionally, the method of the invention further includes the steps of: the transmitting end decodes the information stream to remove the DVB-H packet header and obtains the datagram, then it writes the IP address of the receiving end in the IP packet header; and then the transmitting end transports the datagram with the IP address of the receiving end to the receiving end via the Internet. | 2008-10-16 |
20080253375 | DATA TRANSMISSION METHOD FOR HSDPA - In the data transmission method of an HSDPA system according to the present invention, a transmitter transmits Data Blocks each composed of one or more data units originated from a same logical channel, and a receiver receives the Data Block through a HS-DSCH and distributes the Data Block to a predetermined reordering buffer. Since each Data Block is composed of the MAC-d PDUs originated from the same logical channel, it is possible to monitor the in-sequence delivery of the data units, resulting in reduction of undesirable queuing delay caused by logical channel multiplexing. | 2008-10-16 |
20080253376 | Method and Arrangement for Verifying an Originating Address Transmitted in a Call Request for the Purpose of Establishing a Communications Link in an Ip Communications Network - The invention relates to a method for verifying an originating address transmitted in a call request for the purpose of establishing a communications link in an IP communications network between a user terminal of a first subscriber (A) and a terminal of a second subscriber (B). The transmitted originating address is verified before the communications link is established by way of a confirmation request of the terminal of the second subscriber (B) to the transmitted originating address and evaluation of a response to the confirmation request by the terminal of the second subscriber (B). | 2008-10-16 |
20080253377 | System and method for controlling process end-point utilizing legacy end-point system - Embodiments in accordance with the present invention allow a second end-point determination (EPD) system to actively control the end-pointing of a semiconductor process chamber, by leveraging a legacy EPD system that is already integrated with the chamber. In one embodiment, the second EPD system controls a shutter that regulates the amount of light transmitted between a plasma light source and an optical emission spectroscopy (OES) sensor of the legacy OES EPD system. In this embodiment, the legacy OES EPD system is pre-configured to call end-point when an artificial end-point condition occurs, i.e. the intensity of light falls below a pre-set threshold. When the second EPD system determines an actual end-point condition has been reached, it closes the shutter which, causes the light intensity being read by the OES sensor to fall below the pre-set threshold. This in turn triggers an end-point command to the chamber from the legacy OES EPD system. | 2008-10-16 |
20080253378 | Delivery of Peak Performance Services - Systems for providing peak performance services include a peak performance service provider that provides peak performance services to enhance individuals' performances in sports, and at least one institution that purchases peak performance services from the peak performance service provider for individuals associated with the institution. The peak performance provider makes the peak performance services available to the individuals associated with the institution for a reduced fee or for free, and the peak performance provider provides peak performance services to individuals not associated with the institution for regular fees. Methods for providing peak performance services to enhance individuals' performances in sports include marketing the peak performance services to institutions, allowing an institution to purchase the peak performance services, and providing the peak performance services to an individual associated with the institution. | 2008-10-16 |
20080253379 | LABEL SWITCHING SYSTEM - A packet router in a label switching system includes a logical router configuring module for logically dividing a label switching router (LSR) into a plurality of LSRs each having a label switching function, and a module for specifying, when setting a label switched path on the basis of an explicit route specified, a port or a port group of an egress node. With this construction, a label switching architecture in an ATM network for actualizing MPLS (label switching) can be mapped to an ATM-Switch base system architecture, and a granularity of function (Constraint Base Routing) of specifying a variety of routes provided by MPLS can be attained. | 2008-10-16 |
20080253380 | SYSTEM, METHOD AND PROGRAM TO CONTROL ACCESS TO VIRTUAL LAN VIA A SWITCH - System method and program for controlling access to a VLAN via a port of a VLAN switch system. In response to receipt of a message packet at the port, the switch system determines if a MAC address of the packet matches a MAC address for which the port has been programmed to recognize as a MAC address of a device authorized to communicate with the port. The MAC address of the packet does not match a MAC address for which the port has been programmed to recognize as a MAC address of a device authorized to communicate with the port. In response, the switch system blocks the packet if a rate of ill-formed packets and/or packets from an unrecognized MAC address exceeds a threshold pass rate. The threshold pass rate can be adjusted based on the rate of change of receipt of ill-formed packets and/or packets from an unrecognized MAC address. | 2008-10-16 |
20080253381 | Pseudowire load balancing - In one embodiment, a communications distribution process maintains at least two pseudowires through a network such that the pseudowires share a burden of delivering data through the network. The communications distribution process receives feedback data concerning operation of each pseudowire. The communications distribution process utilizes the feedback data to distribute communications to the common destination across each of the pseudowires. Additionally, the communications distribution process utilizes the feedback to establish at least one new pseudowire, in addition to the first pseudowire and the second pseudowire, for transmission of data traffic. | 2008-10-16 |
20080253382 | Multiple Interface Mobile Node With Simultaneous Home- And Foreign Network Connection - The invention relates to a method for node management in a packet-switched network, wherein a first node acts as a proxy for a second node, both nodes having network-layer addresses and link-layer addresses, the network-layer addresses at the network layer and the link-layer addresses at the link layer being used for communication in the packet-switched network. The method comprises the following steps performed by the first node: The first node receives from the second node a request to receive and forward packets addressed to the second node's network-layer address, whereby the same network-layer address is associated with the first node and the second node, and the first node and the second node have distinct link-layer addresses. The first node advertises to nodes attached to the packet-switched network the first node's link-layer address as a destination address for the second node's network-layer address, while the second node does not advertise. The first node receives in response to advertising, packets destined to the second node's network-layer address having the first node's link-layer address; and forwards packets addressed to the second node's network-layer address to the second node using its link-layer address. | 2008-10-16 |
20080253383 | Communicating using the port-preserving nature of symmetric network address translators - Methods for establishing connections between computing devices when the computing devices are behind Network Address Translators (NATs). Embodiments of the present invention are directed to enabling a first client computer to communicate with a second client computer when both client computers are positioned behind NATs, wherein at least one of the NATs is a port-preserving NAT. | 2008-10-16 |
20080253384 | COMMUNICATION CONTROL METHOD, RELAYING METHOD AND RELAYING DEVICE - Method and device for heightening communications security. Gateway | 2008-10-16 |
20080253385 | FLEXIBLE ETHERNET BRIDGE - In one embodiment, an Ethernet bridge operates in either VLAN aware mode or VLAN unaware mode as specified by a user. The width of a CAM used for storing address table can be minimized by using a mapping of VLAN identifiers to small numbers, which are stored in the CAM. Flooding can be minimized by employing various techniques. Communication can be quickly re-established even if the Ethernet address (or the machine having that address) moves to be reachable on different ports of the Ethernet bridge. Sufficiently quick response to bridge protocols may be ensured by using an external processor to generate responses, and providing a higher priority DMA channel to transfer packets related to the bridge protocols. | 2008-10-16 |
20080253386 | SYSTEM AND METHOD FOR DISTRIBUTING COMMUNICATIONS THROUGH A DENSE MESH NETWORK - A system and method for distributing communications through a dense mesh network having a plurality of nodes coupled to one of at least two gateway controllers is disclosed. A node location of each node is calculated relative to other nodes in the mesh network. Nodes that are less than a predetermined distance of each other are assigned to separate gateway controllers. Radio frequency interference levels between the nodes in the mesh network are measured and channels or PN codes of nodes having interference levels greater than a predetermined amount are changed. | 2008-10-16 |
20080253387 | Method and apparatus for improving SIP server performance - A method and apparatus for improving SIP server performance is disclosed. The apparatus comprises an enqueuer for determining whether a request packet entering into the server is a new request or a retransmitted request and its retransmission times and for enqueuing the request packet into different queues based on results of the determining step and a dequeuer for dequeuing the packet in the queues for processing based on a scheduling policy. The apparatus may further include a policy controller for communicating with the server, enqueuer, dequeuer, queues and user, to dynamically and automatically set, or set based on the user's instructions, the scheduling policy, number of different queues, each queue's capacity, scheduling, etc. based on the network and/or server load and/or based on different server applications. | 2008-10-16 |
20080253388 | HOME NETWORKING SYSTEM - One embodiment relates to a network. The network includes a first splitter having an input port and N output ports. A first network node is associated with a first of the N output ports. A second network node is associated with a second of the N output ports and is adapted to receive signals communicated from the first network node through the first splitter. Other apparatuses and methods are also set forth. | 2008-10-16 |
20080253389 | Method and System of Radio Communications With Various Resolution Levels of Signal Modulation Depending on Propagation Conditions - The present invention relates to communications. More especially it relates to multiple access communications over channels of diverse channel qualities, e.g. signal to noise and interference ratios. Particularly it relates to data communications over radio links with diverse propagation path losses and exploitation of diverse path losses for multiplexing and multiple access purposes. The present invention discloses multiplexing of users or channels in a communications system, particularly a multi-resolution system, where users are allocated different respective resolution levels depending on propagation conditions. | 2008-10-16 |
20080253390 | METHOD AND APPARATUS FOR PRIORITY SERVICES MANAGEMENT - Apparatus and method for adapting a control plane of a communications network normally using a call session control function (CSCF) in communication with a resource access control function (RACF) by providing a priority service functional element (PS-FE) to handle call admission and priority services. | 2008-10-16 |
20080253391 | Protocol Negotiation for a Group Communication System - Methods and systems are provided in a group communication system for dynamically changing a version of a group communication protocol from a first version to a second version transparently to external sources and destinations. The system accommodates newly joining members that can only support versions of the protocol other than the version currently in use without interruption in service. Similarly, the system can upgrade its operating version of the group communication protocol to improve performance when a member having relatively low capabilities exits the group. | 2008-10-16 |
20080253392 | PoE communication bus, interface, and protocol between PoE subsystem and PHY or switch subsystems - Provided is a communications interface system. The communications interface system includes one or more protocol modules configured to include interface protocols that facilitate direct communication between a switching subsystem, a physical layer subsystem, and a Power over Ethernet subsystem. The protocol modules are connectable to a communications bus, the direct communication occurring across the communications bus in accordance with the protocols. | 2008-10-16 |
20080253393 | SYSTEM AND METHOD FOR MANAGING NETWORK TRAFFIC - A system and method for managing network traffic is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a data switch having a controller element to transmit telemetry data representative of bandwidth usage by one or more users of the data switch. Traffic for the data switch can be managed based at least in part on the bandwidth usage by higher bandwidth users of the data switch. Additional embodiments are disclosed. | 2008-10-16 |
20080253394 | METHOD AND SYSTEM FOR ADAPTIVELY OBTAINING BANDWIDTH ALLOCATION REQUESTS - A method and apparatus for adaptively obtaining bandwidth requests in a broadband wireless communication system. The method and apparatus includes dynamically varying technique combinations enabling a plurality of users to efficiently request bandwidth from a shared base station. A user may “piggyback” a new bandwidth request upon, or set a “poll-me bit” within, presently allocated bandwidth. A base station may poll users, individually or in groups, by allocating unrequested bandwidth for new requests. Polling may respond to a “poll-me bit,” and/or it may be adaptively periodic at a rate based on communication status parameters, such as recent communication activity and connection QoS levels Group polling permits a possibility of collisions. Polling policies may be established for dynamically varying user groups, or may be determined for each user. Dynamic selection of appropriate polling techniques makes use of efficiency benefits associated with each technique. | 2008-10-16 |
20080253395 | TCP/IP PROCESSOR AND ENGINE USING RDMA - A TCP/IP processor and data processing engines for use in the TCP/IP processor is disclosed. The TCP/IP processor can transport data payloads of Internet Protocol (IP) data packets using an architecture that provides capabilities to transport and process Internet Protocol (IP) packets from Layer 2 through transport protocol layer and may also provide packet inspection through Layer 7. The engines may perform pass-through packet classification, policy processing and/or security processing enabling packet streaming through the architecture at nearly the full line rate. A scheduler schedules packets to packet processors for processing. An internal memory or local session database cache stores a TCP/IP session information database and may also store a storage information session database for a certain number of active sessions. The session information that is not in the internal memory is stored and retrieved to/from an additional memory. An application running on an initiator or target can in certain instantiations register a region of memory, which is made available to its peer(s) for access directly without substantial host intervention through RDMA data transfer. | 2008-10-16 |
20080253396 | Protocol Stack - There are disclosed processes and systems relating to protocol stacks. The protocol stack may be run entirely in a single memory space. There may be a communal memory region available to certain layers of the protocol stack. The layers of the protocol stack may form condensed versions of data and headers, and data units may be formed by hardware within the device when needed. After transmission, data units may be immediately deleted but recreated if needed for retransmission. | 2008-10-16 |
20080253397 | Bandwidth control device, computer readable recording medium storing program and method of controlling bandwidth control device - A register stores the earliest time (IRL) at which a packet can be subsequently transmitted from a transmitting device in order to obey an allowable bandwidth given to the transmitting device, the earliest time (RL−1 to n) at which the packet of each class can be transmitted in order to obey the allowable bandwidth of the class, and a final time (RG−1 to n) at which the packet of each class is to be subsequently transmitted in order to maintain the guarantee bandwidth of the class. When a packet transmittable timing is reached, the packet of a class m which the final time (RG−1 to n) approaches is transmitted preferentially from the classes in which a current time reaches the earliest time (RL−1 to n) . When the transmission of a packet is started, the next earliest time (IRL), earliest time (RL−m) of the class m and final time (RG−m) is determined based on the data volume of the packet. | 2008-10-16 |
20080253398 | SELECTIVE HEADER FIELD DISPATCH IN A NETWORK PROCESSING SYSTEM - A method and structure is disclosed for dispatching appropriate data to a network processing system comprising an improved technique for extracting protocol header fields for use by the network processor. This technique includes basic classification of a packet according to the types of protocol headers present in the packet. Based on the results of the classification, specific parameter fields are extracted from corresponding headers. All such parameter fields from one or more protocol headers in the packet are concatenated into a compressed dispatch message. Multiple of such dispatch messages are bundled into a single composite dispatch message. Thus selected header fields from N packets are passed to the network processor in a single composite dispatch message, increasing the network processor's packet forwarding capacity by a factor of N. Likewise, multiple enqueue messages are bundled into a single composite enqueue message to direct enqueue and frame alterations to be taken on the bundle of N packets. | 2008-10-16 |
20080253399 | OPTIMIZATION METHODS AND APPARATUS FOR TRANSMITTING MULTIPLE PLMN-IDS - This application is related to a method and apparatus for optimizing the transmission of PLMN-IDs in a wireless network. This is accomplished by reducing the amount of bandwidth required to transmit a given set of PLMN-IDs. | 2008-10-16 |
20080253400 | Non-orthogonal frequency-division multiplexed communication through a non-linear transmission medium - A method for non-orthogonal frequency division multiplexed communication through a non-linear transmission medium includes the steps of selecting at least one desired bandwidth, selecting a non-orthogonal pair of base frequencies within a first bandwidth of the at least one desired bandwidth, identifying where primary intermodulation products formed as a result of signal transmission on the pair of base frequencies fall within the first bandwidth. The method may also include the step of selecting a plurality of non-orthogonal interleaved frequencies adjacent at least one of the pair of base frequencies so as to be interleaved between the primary intermodulation products to form a frequency cluster which includes the at least one of the pair of base frequencies and the interleaved frequencies. | 2008-10-16 |
20080253401 | TRANSIENT ROBUST CHANNEL FOR COMMUNICATION SYSTEMS - One embodiment of the present invention relates to a network device. The network device includes a receiver configured to be coupled to a transmission medium supporting a multi-carrier channel over which data is communicated as symbols in a first communication state according to an initial bit-loading configuration. The receiver is further configured to detect noise that can corrupt the symbols on the multi-carrier channel. In addition, the receiver is configured to, in response to the detected noise, allocate at least part of the multi-carrier channel to a transient robust channel that facilitates adaptive communication. Other methods and devices are also disclosed. | 2008-10-16 |
20080253402 | Timing device and method - A logical network directory database compliant with the X.500 standard for a directory data system is disclosed. The network directory database provides a source of subscriber and service data accessible by various control and management processes that require subscriber information. The network directory database may be extensible across various communications service providers and IT domain. Further, the disclosed network directory database may be applied to new and existing services, such as, IP Multimedia Subsystem, Unlicensed Mobile Access (UMA) and other IP services. | 2008-10-16 |
20080253403 | Nomadic subscriber data system - A logical network directory database compliant with the X.500 standard for a directory data system is disclosed. The network directory database provides a source of subscriber and service data accessible by various control and management processes that require subscriber information. The network directory database may be extensible across various communications service providers and IT domain. Further, the disclosed network directory database may be applied to new and existing services, such as, IP Multimedia Subsystem, Unlicensed Mobile Access (UMA) and other IP services. | 2008-10-16 |
20080253404 | DYNAMIC TIME DIVISION MULTIPLEXING CIRCUIT WITHOUT A SHADOW TABLE - In a telecommunication system adapted to exchange n-bit frames according to a dynamic time division multiplexing access method for a maximum of N accessible channels, the use of a shadow time slot assignment table is eliminated by use of a circuit that includes (a) an n×p memory block to store a time slot assignment table which describes the different time slot assignments by specifying which logical channel each bit position of an n-bit frame belongs to, (b) a register having N fields with a granularity of one bit, each bit indicates the status of the corresponding logical channel associated thereto, and (c) a logic circuit connected to the memory block and register that enables or disables the transmission of the logical channel identifier to a time slot assignor depending on the status bit value. | 2008-10-16 |
20080253405 | Method and System for Providing Error Resiliency - A method and system for providing error resiliency in processing a multimedia bitstream. The bitstream includes a start code pattern and the method and system detect the start code pattern and track its location to prevent the bitstream processor from overrunning the start code pattern of a subsequent block of multimedia data and corrupting the subsequent block of data. A shift length limiter receives a location of the start code pattern and the location of a current bit pointer. The shift length limiter calculates the number of bits between the start code pattern location and the current bit pointer location. When the shift length limiter receives a bit shift request, the shift length limiter prevents shifting if the number of bits in the bit shift request exceeds the calculated number of bits between the start code pattern location and the current bit pointer location. | 2008-10-16 |
20080253406 | TRANSPORT STREAM ENCAPSULATED TRICK MODES - A representation of an audiovisual asset is obtained and is processed to obtain at least one normal playback video elementary stream, (optionally, at least one audio elementary stream), and at least one trick mode video elementary stream. A transport stream is formed from the at least one normal playback video elementary stream, the at least one audio elementary stream (where present), and the at least one trick mode video elementary stream, with the at least one trick mode video elementary stream encapsulated in the transport stream. Streaming of the transport stream within a network is facilitated, for example, to a VOD server (for de-encapsulation), and in some approaches, to a set-top box. | 2008-10-16 |
20080253407 | LASER AND METHOD FOR GENERATING PULSED LASER RADIATION - A laser for generating pulsed laser radiation is provided. The laser includes a resonator, a laser-active medium arranged in the resonator, and an acousto-optic modulator arranged in the resonator. The modulator can be put in a first and a second state so as to set the resonator quality, the resonator quality being lower in the first state than in the second state, and comprising a control unit for controlling the modulator. The control unit effects phase-locked coupling of a high-frequency signal to be applied to the modulator in one of said two states, in order to generate a predetermined sound field in the modulator, and a switching signal designed to switch the modulator periodically between the two states. | 2008-10-16 |
20080253408 | Method and apparatus to control output spectrum bandwidth of MOPO or MOPA laser - An apparatus and method which may comprise a seed laser defining an optical cavity producing an output. An amplifier may amplify the seed laser output. A bandwidth error signal generator may provide a bandwidth error signal from measured bandwidth and a target. A bandwidth selection element, which may comprise an adjustable sized aperture external to the cavity of the seed laser may selectively alter the bandwidth of the seed laser output. A bandwidth control system may control the bandwidth control element and also selectively adjust a differential firing time between the seed laser and amplifier or another bandwidth selection actuator to cooperated (coarsely or finely) with the bandwidth selection element to control bandwidth of the laser system. | 2008-10-16 |
20080253409 | Multi-Channel Bio-Chip Scanner - There is provided a multi-channel bio-chip scanner using two or more excitation wavelengths. The bio-chip scanner includes: a glass holder unit mounted with a bio-chip in which a target DNA pre-marked by a fluorescent material is hybridized with a probe DNA; a light source unit irradiating a laser beam onto the bio-chip; a transfer unit transferring the bio-chip from the glass holder unit; and a detection unit detecting and analyzing fluorescent light expressed by the bio-chip with irradiation of the laser beam, wherein the light source unit generates two or more laser beams having different wavelengths. | 2008-10-16 |
20080253410 | LASER APPARATUS AND MANUFACTURING METHOD OF A BATTERY - A laser apparatus is provided which is capable of achieving deep penetration into an aluminum-like metal material without causing welding defects such as spatters or cracks and performing high-speed pulse seam welding. The laser apparatus includes a pulse power source that generates a current signal and a mask signal for masking a fluctuation component included in the current signal, and which supplies a current signal in which a fluctuation component has been masked by the mask signal to a YAG pulsed laser oscillator. In addition, the laser apparatus sets the spot shape of a CW laser light oscillated by a CW laser oscillator to a rhombic streamlined shape, and causes a focus spot of the CW laser light to include a circular focus spot of a pulsed laser light. | 2008-10-16 |
20080253411 | Optically Active Matrix with Void Structures - An optically active element, such as a photonic crystal, is formed by creating a matrix ( | 2008-10-16 |
20080253412 | Light source, and image display apparatus, monitoring apparatus, and illumination apparatus using the same - A light source that emits light includes light source units, each emitting a plurality of light beams parallel to one another, the plurality of light beams including first and second light beams, and a beam distance adjustment element that is an optical element made of a light-transmissive material. The beam distance adjustment element is configured to adjust the distance between the first and second light beams. The beam distance adjustment element includes a first incidence plane on which the first light beam is incident, a first exit plane that is parallel to the first incidence plane and from which the first light beam exits, a second incidence plane on which the second light beam is incident, and a second exit plane that is parallel to the second incidence plane and from which the second light beam exits. The first and second light beams intersect in the beam distance adjustment element. | 2008-10-16 |
20080253413 | Laser lithography system with improved bandwidth control - A method and apparatus may comprise a seed laser, along with an amplifier laser amplifying the output of the seed laser. A bandwidth metrology module may provide a bandwidth measurement and a bandwidth error signal may be provided using a bandwidth set point. A differential timing system responsive to the error signal can selectively adjust a differential firing time between the seed laser and amplifier laser. A beam dimension and center wavelength control system may adjust a beam dimension, within the cavity of the seed laser, to select bandwidth, and may adjust center wavelength at the same time, using a plurality of beam expansion prisms and at least one other prism or other optical element in the cavity to select center wavelength. | 2008-10-16 |
20080253414 | VCSEL DRIVER - The invention provides a driver for a semiconductor light emitting device, in particular a vertical cavity surface emitting laser (VCSEL) which includes a delay buffer for generating an output signal as a delayed version of an input signal; a pulse generation stage coupled in parallel with the delay buffer and adapted to produce selectively positive and negative output pulses starting concurrently with respective positive and negative edges of the output signal of the buffer; and a summer for summing the output signal and the pulses. | 2008-10-16 |
20080253415 | Error control for high-power laser system employing diffractive optical element beam combiner - A high-power laser system includes a laser master oscillator, a plurality of fiber laser amplifiers producing intermediate output beamlets, a diffractive optical element for combining the intermediate beamlets into a combined output beam, and one or more error controllers for minimizing errors related to beam combination that may degrade the quality of the combined output beam. A piston error controller uses phase modulation to tag each non-reference intermediate beamlet with a unique dither signal harmonically unrelated to those used for the other beamlets. For each intermediate beamlet, the associated piston error is recovered using a synchronous detector, and an error control signal proportional to the piston error is supplied to a phase modulator to control the piston error for that beamlet. A tilt error controller uses amplitude modulation based on Hadamard code words to tag each non-reference intermediate beamlet with a unique code sequence orthogonal to those used for the other beamlets. For each intermediate beamlet, the associated tilt error is recovered using a Hadamard decoder, and an error control signal proportional to the tilt error is supplied to a beam steerer to control the tilt error for that beamlet. | 2008-10-16 |
20080253416 | Laser unit having preparatory function for activating the unit and activation method for the unit - A laser unit having a preparatory function for activating the unit and an activation method for the unit, capable of stabilizing the temperature of each component of the laser unit in the preparation stage when the laser unit is activated in a low-temperature or high-temperature environment, and then effectively judging completion of the preparation. During a period of time Ta from T | 2008-10-16 |
20080253417 | Error control for high-power laser system employing diffractive optical element beam combiner with tilt error control - A high-power laser system includes a laser master oscillator, a plurality of fiber laser amplifiers producing intermediate output beamlets, a diffractive optical element for combining the intermediate beamlets into a combined output beam, and one or more error controllers for minimizing errors related to beam combination that may degrade the quality of the combined output beam. A piston error controller uses phase modulation to tag each non-reference intermediate beamlet with a unique dither signal harmonically unrelated to those used for the other beamlets. For each intermediate beamlet, the associated piston error is recovered using a synchronous detector, and an error control signal proportional to the piston error is supplied to a phase modulator to control the piston error for that beamlet. A tilt error controller uses amplitude modulation based on Hadamard code words to tag each non-reference intermediate beamlet with a unique code sequence orthogonal to those used for the other beamlets. For each intermediate beamlet, the associated tilt error is recovered using a Hadamard decoder, and an error control signal proportional to the tilt error is supplied to a beam steerer to control the tilt error for that beamlet. | 2008-10-16 |
20080253418 | Light source device, monitor device, projector, and driving method for driving light source device - A light source device includes: a plurality of laser light sources that emit laser light; and a light source driving section that drives at least one of the laser light sources by a first driving value that is a value less than a threshold level of at least one of the laser light sources, or by a second driving value that is a value greater than a threshold level of at least one of the laser light sources, and that varies at least one of the number of laser light sources that are driven by the first driving value and the number of laser light sources that are driven by the second driving value in the laser light sources, thereby controlling the total output of laser light emitted from the laser light sources. | 2008-10-16 |
20080253419 | Diode Pumped Laser - A switching mechanism ( | 2008-10-16 |
20080253420 | Light-emitting device - The conventional light-emitting element formed by an electroluminescent material has a problem due to poor color purity of light emission. Accordingly, it is an object of the present invention to provide a high luminance and high efficiency light-emitting device formed by an organic compound material. The invention provides a light-emitting device in which an organic compound layer that emits light having an emission peak with a half-band width of at most 10 nm upon applying current is interposed between a pair of electrodes is provided. The variation of emission peak intensity depending on a current density can be sorted by two linear regions with different gradients. A region of a sharp gradient is at a higher current density side compared to a region of a slow gradient. TFTs are provided to each pixel in order to perform active matrix driving. | 2008-10-16 |
20080253421 | High-Power Semiconductor Laser - A light source includes a semiconductor laser diode and a narrow spectral and spatial bandwidth reflector in optical communication with respect to the semiconductor diode laser and aligned with the output beam of the diode laser, such that a portion of the light in the output beam is reflected back into the laser. | 2008-10-16 |
20080253422 | Surface emitting semiconductor laser - A surface emitting semiconductor laser comprises first and second distributed Bragg reflectors, an active layer and a junction region. The first distributed Bragg reflector includes first III-V compound semiconductor layers and second III-V compound semiconductor layers, and the first and second III-V compound semiconductor layers are alternately arranged. The second distributed Bragg reflector includes a first portion and a second portion. The first portion including third III-V compound semiconductor layers and fourth III-V compound semiconductor layers, and the third and fourth III-V compound semiconductor layers are alternately arranged. The second portion includes first insulating layers and second insulating layers, and the first and second insulating layers are alternately arranged. The active layer is provided between the first distributed Bragg reflector and the second distributed Bragg reflector. The active layer is made of III-V compound semiconductor. The first portion of the second distributed Bragg reflector is provided between the active layer and the second portion. The junction region includes a tunnel junction, and the junction region is provided between the active layer and the second distributed Bragg reflector. | 2008-10-16 |
20080253423 | COMPACT OPTO-ELECTRONIC DEVICE INCLUDING AT LEAST ONE SURFACE EMITTING LASER - This relates to an opto-electronic device comprising at least two opto-electronic components ( | 2008-10-16 |
20080253424 | Use of Volume Bragg Gratings For The Conditioning Of Laser Emission Characteristics - Apparatus and methods for altering one or more spectral, spatial, or temporal characteristics of a light-emitting device are disclosed. Generally, such apparatus may include a volume Bragg grating (VBG) element that receives input light generated by a light-emitting device, conditions one or more characteristics of the input light, and causes the light-emitting device to generate light having the one or more characteristics of the conditioned light. | 2008-10-16 |
20080253425 | CHANNEL ELECTRIC INDUCTOR ASSEMBLY - The present invention relates to an electric channel inductor assembly and method of forming an electric channel inductor assembly. A nonremovable, hollow, nonmagnetic channel mold is used to form the one or more flow channels of the assembly. A heated fluid medium is circulated in the hollow interior of the mold after the mold is situated in the assembly to heat treat the refractory surrounding the exterior walls of the mold. After heat treatment a liquid is supplied to the hollow interior of the mold to chemically dissolve the mold. | 2008-10-16 |
20080253426 | Method of Assaying a Hydrocarbon-Containing Feedstock - Disclosed herein is a method of assaying a crude oil, the method includes measuring at least two selected properties of the crude oil with one or more laboratory-independent devices using at least two different techniques wherein each technique is predictive of each respective property, transmitting the measured properties to a processor capable of reconstructing a determinative assay of the crude oil from the measured properties, and reconstructing a determinative assay of the crude oil from the measured properties. The disclosed method provides real-time information of a refinery feedstock such that, for example, a trader negotiating the sale of the product has accurate assay information on which to determine whether to sell or purchase the product. | 2008-10-16 |
20080253427 | Sensor Apparatus Systems, Devices and Methods - A sensor apparatus and sensor apparatus system for use in conjunction with a cassette, including a disposable or replaceable cassette. In some embodiments, the cassette includes a thermal well for permitting the sensing of various properties of a subject media. The thermal well includes a hollow housing of a thermally conductive material. In other embodiments, the cassette includes sensor leads for sensing of various properties of a subject media. The thermal well has an inner surface shaped so as to form a mating relationship with a sensing probe. The mating thermally couples the inner surface with a sensing probe. In some embodiments, the thermal well is located on a disposable portion and the sensing probe on a reusable portion. | 2008-10-16 |
20080253428 | STRAIN AND HYDROGEN TOLERANT OPTICAL DISTRIBUTED TEMPERATURE SENSOR SYSTEM AND METHOD - A distributed temperature sensing system and method includes an optical sensing waveguide. The optical sensing waveguide is a single mode waveguide having a substantially pure silica core and a large outer diameter. The system further includes an optical instrument optically connected to the optical sensing waveguide. The optical instrument is configured for generating an optical excitation signal along the optical sensing waveguide, and is also configured for receiving a return optical signal indicative of the temperature at one or more locations along the optical sensing waveguide. | 2008-10-16 |
20080253429 | Method for Detecting Fault of Oil Temperature Sensor for Automatic Transmission - A method for detecting a fault of an oil temperature sensor of an automatic transmission by using a determining means for detecting the fault of the oil temperature sensor. The method includes any one or more of the steps of 1) determining the fault of the oil temperature sensor by comparing minimum and maximum output values of the oil temperature sensor in every driving mode, 2) determining the fault of the oil temperature sensor by detecting abnormal excessive increase and decrease of the oil temperature for a specific duration, 3) determining the fault the oil temperature sensor in the stuck state in the driving mode when transmission oil temperature increases, and 4) determining the fault of the oil temperature sensor by detecting the oil temperature exceeding a predetermined temperature based on the time when the engine is left at a stopped state. | 2008-10-16 |
20080253430 | METHOD FOR MEASURING THE TEMPERATURE IN A FURNACE - Method for measuring the local temperature in an industrial furnace ( | 2008-10-16 |
20080253431 | Receiving apparatus and signal processing method - In the reception and demodulation of a communication signal with frequency hopping among a plurality of frequency bands, a demodulator is formed by a balance circuit. The demodulator performs frequency conversion by multiplying signals in_a and in_b, which are obtained by converting a received signal into differential signals, by local signals Lo | 2008-10-16 |
20080253432 | NOISE POWER ESTIMATION APPARATUS, NOISE POWER ESTIMATION METHOD AND SIGNAL DETECTION APPARATUS - A noise power estimation apparatus is disclosed. The noise power estimation apparatus includes: a part for calculating correlation between a received signal and a pilot signal so as to obtain a received power of the pilot signal for each path; a part for removing a multipath interference component from the received power of the pilot signal by using a predetermined power ratio between the pilot signal and a data signal so as to obtain a corrected received power of the pilot signal; a part for estimating an estimated total power of the pilot signal and the data signal included in the received signal based on the corrected received power and the predetermined power ratio; and a part for subtracting the estimated total power from a total power of the received signal so as to obtain a noise power. | 2008-10-16 |
20080253433 | System and method for generating multicarrier spread spectrum signals with constant envelope - A method of generating a multicarrier spread spectrum signal having a constant envelope includes partitioning multiple spreading codes into at least a first portion of spreading codes and a second portion of spreading codes. First and second modulating signals, respectively, are formed from the first and second portions of spreading codes. A first carrier spread spectrum signal is modulated with the first modulating signal to form a first modulated carrier signal, and a second carrier spread spectrum signal is modulated with the second modulating signal to form a second modulated carrier signal. The first and second modulated carrier signals are summed to form the multicarrier spread spectrum signal. The method includes combining spreading codes from the multiple spreading codes using majority voting logic to form the first and second portions of spreading codes. | 2008-10-16 |
20080253434 | OPTION MANAGEMENT IN A SOFTWARE-DEFINED RADIO - The option management approach for SDRs includes control of installation and/or access to waveform features and/or platform features. A software-defined radio may include an antenna, a radio transceiver coupled to the antenna, and at least one memory storing a master feature database including a plurality of selectable waveform features and a plurality of selectable platform features, and a selected options database including selected waveform features and selected platform features from the master feature database. A controller cooperates with the at least one memory to configure the selected options database based upon an input options file and to permit reconfiguration of the selected options database based upon a subsequent input options file. The controller also cooperates with the radio transceiver and the selected options database to operate the SDR based upon the selected waveform features and the selected platform features. | 2008-10-16 |
20080253435 | SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING - Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises a receiver configured to receive a waveform comprising a plurality of spectrally overlapping carrier signals from at least two of a plurality of remote units, wherein the plurality of spectrally overlapping carrier signals are modulated using an inverse Fourier transform algorithm; and a processor coupled to the receiver, wherein the processor applies a Fourier transform algorithm to demultiplex upstream data modulated onto the waveform by the at least two of a plurality of remote units | 2008-10-16 |
20080253436 | Method and System for Measuring the Occupation and Allocation of a Transmission Spectrum - The invention relates to a method for measuring the occupancy of at least one transmission spectrum for a multicarrier radiofrequency signal communication system, wherein the method comprises slicing the spectrum into subsets of carriers and of time slicing within the subsets to form elementary time/frequency segments, signal non-transmission, by at least one transmission equipment item of the system, during elementary non-transmission segments mutually shifted over time and in frequency, and measuring chosen parameters of signals conveyed in the transmission spectrum during each of these elementary non-transmission segments. | 2008-10-16 |
20080253437 | MONITORING RELIABILITY OF A DIGITAL SYSTEM - Method, system and article of manufacture are provided for continually monitoring reliability, or aging, of a digital system and for issuing a warning signal if digital system operation degrades to or past a specified threshold. The technique includes periodically determining a maximum frequency of operation of the digital system, and generating a warning signal indicative of a reliability degradation of the digital system if at least one of: (i) a measured or estimated maximum frequency of operation of the digital system is below a warning threshold frequency of operation of the digital system, wherein the warning threshold frequency is greater than or equal to a manufacturer specified minimum frequency of operation for the digital system; or (ii) a rate of change in the difference between measured maximum frequencies of operation of the digital system exceeds an acceptable rate of change threshold for the digital system. | 2008-10-16 |
20080253438 | Near-Minimum Bit-Error Rate Equalizer Adaptation - Method for equalizer adaptation and/or target adaptation in a receiver for a transmission channel. The method provides for detecting data in the received signal, deriving an error sequence representing potential errors in the data detection, deriving a first value representing the likelihood of an error in the data detection, the first value based on the error sequence and the received signal, and enabling and disabling adaptation of the equalizer and/or the target response depending on the first value being below or above a predefined threshold value. | 2008-10-16 |
20080253439 | DE-EMPHASIZING CABLE EQUALIZER - In accordance with the teachings described herein, an extended equalizer circuit is provided for equalizing a digital communication signal transmitted over a transmission medium that causes a frequency-dependent attenuation of the digital communication signal. An equalizer may be used that includes a linear equalization circuit and a non-linear equalization circuit, the linear equalization circuit being configured to apply a linear filter to the digital communication signal to compensate for the frequency-dependent attenuation caused by a first portion of the transmission medium, and the non-linear equalization circuit being configured to apply one or more non-linear operations to the digital communication signal. A de-emphasizing equalizer circuit may be coupled in series between the transmission medium and the equalizer and configured to apply an additional linear filter to the digital communication signal in order to compensate for the frequency-dependent attenuation caused by a second portion of the transmission medium | 2008-10-16 |
20080253440 | Methods and Apparatus For Mixing Compressed Digital Bit Streams - Methods, apparatus and articles of manufacture for mixing compressed digital bit streams are disclosed. An example method disclosed herein comprises acquiring a frame associated with a first compressed digital bit stream, unpacking the frame to obtain a plurality of original transform coefficient sets, and modifying the plurality of original transform coefficient sets to mix a second digital bit stream with the first compressed digital bit stream. | 2008-10-16 |
20080253441 | Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor - An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a first partial parameter using a reference value corresponding to the first partial parameter and a difference value corresponding to the reference value and deciding a parameter using the first partial parameter and a second partial parameter. | 2008-10-16 |
20080253442 | Data Processing Apparatus - A programmable data processing apparatus having a bit-plane extraction operation is described, for extracting data from a value of, for example, 32 bits containing 4 bytes, | 2008-10-16 |