21st week of 2009 patent applcation highlights part 34 |
Patent application number | Title | Published |
20090129358 | Communication Apparatus, Communication Method and Program - A communication apparatus, which has a means for allowing communication to be performed via one or more lines, decides a timing at which to perform a reconnection, taking the statuses of the lines into account. When the timing at which to perform the reconnection has been decided, a line is disconnected once, and then the line is reconnected. This allows the communication apparatus to attempt to switch to a higher-rate communication mode, maintain the connectivity of the communication apparatus and to secure a higher-rate communication mode line, whereby the communication apparatus can use an increased number of bands as a whole. | 2009-05-21 |
20090129359 | Hand Over Method From Asynchronous Mobile Communication Network to Synchronous Mobile Communication Network - The present invention relates to a method of performing handover from an asynchronous mobile communication network to a synchronous mobile communication network. If the access network of the asynchronous mobile communication network ( | 2009-05-21 |
20090129360 | METHOD FOR CODE CHANNEL ALLOCATION AND METHOD FOR MULTIUSER DETECTION IN A WIRELESS COMMUNICATION SYSTEM - The present invention discloses a method for code channel allocation and related multiuser detection in a wireless communication system. The method for code channel allocation includes: establishing a relation between at least one channel estimation window and a channelization code, wherein the at least one channel estimation window corresponding to the channelization code includes the channel estimation windows corresponding to all the spread spectrum code branches of a node in which the channelization code exists; and performing code channel allocation according to the relation established. In the method for code channel allocation of the invention, there exists a one-to-many relation between the channelization code/channelization code number established and the at least one channel estimation window. Therefore, during the multiuser detection, the channelization code/channelization code number determined via the at least one channel estimation window activated is unique. Thereby, the efficiency of the multiuser detection process may be increased. | 2009-05-21 |
20090129361 | METHOD AND APPARATUS FOR SEARCHING FOR OR TUNING TO ONE OR MORE RADIO STATIONS WITH MINIMUM INTERACTION WITH HOST PROCESSOR - A host system for searching for or tuning to one or more radio stations includes a host processor and a data processor. The data processor is configured to receive a command from the host processor. The data processor is further configured, based on the command, to perform multiple search operations for radio stations without interrupting the host processor, to search for a radio station based on radio data system (RDS) data without interrupting the host processor, or to tune to a radio station based on RDS data without interrupting the host processor. A method is also provided for searching for or tuning to one or more radio stations. | 2009-05-21 |
20090129362 | TRANSMISSION DEVICE AND TRANSMISSION METHOD - A disclosed transmission device includes a frequency scheduling unit configured to allocate, to each user, either frequency blocks that are consecutive frequency subcarrier blocks obtained by dividing a system bandwidth or distributed frequency blocks that are frequency subcarrier blocks discretely distributed in the system bandwidth; and a mapping unit configured to assign transmission data to the frequency blocks or the distributed frequency blocks according to the allocation result. The frequency scheduling unit is configured to allocate the distributed frequency blocks using the frequency blocks as units and to allocate sub-blocks obtained by dividing the respective distributed frequency blocks. | 2009-05-21 |
20090129363 | Automatic Volume Restoration in a Distributed Communication System - A distributed home communications system automatically restores settings, such as volume levels, on each communication node when initiating a connection associated with various communication types in paging, public address, two-way radio, intercoms, music distribution systems, and the like. | 2009-05-21 |
20090129364 | METHOD FOR TRANSMITTING AND RECEIVING SAFETY MESSAGE - A method for a first mobile station to transmit a safety message to a second mobile station is provided. The first mobile station competitively transmits a non-safety message to the second mobile station during a first period. The first mobile station spreads a safety message and generates a spread message when a second period starts, and transmits the spread message to the second mobile station. Accordingly, safety message transmission delay or data loss in the inter-vehicle communication can be prevented. | 2009-05-21 |
20090129365 | CONTROL STATION, CONTROLLING METHOD THEREOF AND STORAGE MEDIA - This invention has as its object to reduce power consumption of dependent stations with low frequency of communication by controlling communications of the control station in a network. According to this invention, a control station communicating with dependent stations comprises a classification unit configured to classify the dependent stations connected to the control station into a plurality of groups; a first transmission unit configured to transmit first broadcast-frame to the dependent stations classified into first group; and a second transmission unit configured to transmit second broadcast-frame to the dependent stations classified into second group with lower frequency of communication compared to the first group, wherein the second transmission unit transmits the second broadcast-frame with a lower transmitting frequency compared to the first broadcast-frame transmitting frequency of the first transmission unit. | 2009-05-21 |
20090129366 | Multiple Power-Multiple Access in Wireless Networks for Interference Cancellation - A method and network communicate packets by assigning, in each one of a set of multiple transmitters, a power level to a packet to be transmitted during a time interval. The power level is selected from a set of power levels available for the set of multiple transmitters. The power levels in the set range from highest to lowest. There is one packet for each transmitter such that there is a set of packets to be transmitted during the time interval. The set of packets is transmitted concurrently during the time interval to enable decoding of at least one of the packets in the set of packets during the time interval. | 2009-05-21 |
20090129367 | MULTI-FUNCTION WIRELESS TERMINAL - A method for communication includes allocating time intervals for a first communication session over a first connection between a wireless terminal and a base station of a long-range wireless data network, which operates in accordance with a first protocol defining time frames having downlink and uplink sub-frames. Time slots are allocated for a second communication session over a second connection between the terminal and a peripheral wireless device, which operates in accordance with a second, short-range time-slotted protocol, which is different from the first protocol and has a retransmission mechanism. The time slots are synchronized with the downlink and uplink sub-frames defined by the BS. Operation of the second connection is inhibited during some of the time slots that overlap the downlink sub-frames, so as to invoke the retransmission mechanism and cause the terminal to transmit only during the time slots that do not overlap the downlink sub-frames. | 2009-05-21 |
20090129368 | COMMUNICATION APPARATUS AND CONTROL METHOD, PROGRAM, AND STORAGE MEDIUM THEREOF - A communication apparatus comprises: a determination unit to determine whether there exists an external apparatus that has not undergone synchronization adjustment; and a control unit to exert control, if the external apparatus exists, so that the communication apparatus functions as an apparatus which sends beacon information to adjust the synchronization timing of communication, and so that, if the external apparatus does not exist, the communication apparatus functions as an apparatus which does not send beacon information to adjust the synchronization timing of communication. | 2009-05-21 |
20090129369 | APPARATUS AND METHOD FOR SUPPORTING MULTIPLE TRAFFIC CATEGORIES AT A SINGLE NETWORKED DEVICE - An apparatus comprising a first and a second functional entity operable for supporting traffic in, respectively, first and second traffic categories across a communications network. The second traffic category is associated with specific routing requirements. A network interface releases a request for a first address and a request for a second address. The request for a second address comprises data that is instrumental in causing the second address to be assigned by an address-assigning entity from a particular set of at least one address. The network is pre-configured to route traffic destined for a given address in the particular set of at least one address in accordance with the specific routing requirements. Receipt of the first address from the address-assigning entity enables the first functional entity to act as a receptor of traffic in the first traffic category, while receipt of the second address enables the second functional entity to act as a receptor of traffic in the second traffic category. | 2009-05-21 |
20090129370 | Voice-Over-IP Capable Sideshow Device - A Voice-over-IP capable SideShow device is disclosed. Specifically, according to one embodiment of the present invention, a SideShow device capable of supporting Voice-over-Internet-Protocol (VoIP) includes a modifiable content endpoint and a virtual UART. The content endpoint enables the SideShow device to support a set of configurable functions and associate customized events with the set of configurable functions for the SideShow device to display customized graphical user interface. The virtual UART facilitates the accessing of hardware resources in the SideShow device. | 2009-05-21 |
20090129371 | Method and system to enable mobile roaming over ip networks and local number portability - A method and system for creating a virtual roaming solution for a MSISDN using a softphone over an IP network. The system involves (i) implementation of a novel virtual mobile network (VMN) comprising virtual visitor location register (vVLR), virtual home location register (vHLR) and virtual multiple switching centre (vMSC) on an IP server responsible for managing IP call traffic administration, and (ii) implementation of a novel mobile to internet gateway (MIG) comprising an VoIP gateway for diverting call traffic from the mobile network to the IP network, and an IP server with vMSC functionality to translate routing information from the VMN to GSM network so as to appear to the GSM network as a traditional mobile operator. The system dynamically registers the subscriber to the IP network, and provides valid routing information to the MSC (Mobile Switching Centre) or public telephone switch to route the call over to the NGN (next generation network) operator in the IP space. | 2009-05-21 |
20090129372 | IMS AND SMS INTERWORKING - Providing for inter-working between SMS network architectures and IMS network architectures in a mobile environment is described herein. By way of example, a next generation (NG) short message service center (SMSC) is provided that can receive SMS messages in mobile application protocol (MAP) and convert such messages to IMS protocol. In addition, the NG SMSC can also receive IMS data and convert the IMS data to an SMS MAP message. The NG SMSC can reference an IMS or an SMS location registry to determine a location of the target device, and convert from IMS to SMS MAP, and vice versa, as suitable. Accordingly, the NG SMSC can provide an efficient interface between legacy SMS and NG IMS network components while preserving legacy protocols associated with such networks. | 2009-05-21 |
20090129373 | EXTRACTION OF SUBSCRIBER TERMINAL INFORMATION SIGNAL - A first terminal sends a monitoring execution information for monitoring an information signal sent from a subscriber terminal, together with subscriber identification information, to a subscriber information storage apparatus. The subscriber information storage apparatus sends the subscriber identification information to a call control apparatus which is searched for based on the subscriber identification information. The call control apparatus sends the subscriber identification information to a network band managing apparatus which is searched for based on the subscriber identification information. The network band managing apparatus sends the subscriber identification information and a physical port number and a TCP/UDP port number which are searched for based on the subscriber identification information to a transmission apparatus which is searched for based on the subscriber identification information. The transmission apparatus extracts an information signal which uses the physical port represented by the physical port number and the TCP/UDP port represented by the TCP/UDP port number, and sends the extracted information signal together with the subscriber identification information to a second terminal. | 2009-05-21 |
20090129374 | SYSTEM AND METHOD FOR USING EXCEPTION ROUTING TABLES IN AN INTERNET BASED TELEPHONE CALL ROUTING SYSTEM - In a Voice Over Internet Protocol (VoIP) system for completing telephone calls over the Internet, the system uses a general routing table and client exception routing tables to instruct originating gateways about how to complete calls. When a call request for a particular client is received, the system first looks to that client's exception routing table to see if routing information for the call is available. If so, the system will use the routing information in the client's exception routing table to complete the call. The routing information in the client's exception routing table could include information about preferred destination gateways and/or preferred Internet Service Providers. If the client's exception routing table does not contain information that could be used to route the call, then the system simply uses the routing information in the general routing table. In some situations, the system could utilize multiple general routing tables. Likewise, a single client could have multiple exception routing tables. | 2009-05-21 |
20090129375 | Method and Apparatus for Transmission of Circuit Switched Voice Over Packet Switched Networks - Systems and methodologies are described that facilitate and/or effectuate transmission of circuit switched voice over packet switched networks. The systems and methodologies provide for the receiving a first packet originating from access terminals and/or user equipment, determining within which hybrid automatic repeat request (HARQ) the first packet is received, ascertaining an amount of delay that is applied to the first packet before the first packet is forwarded into a core circuit switched network; and establishing a periodic time interval within which to convey subsequent packets that originate from the communicating access terminal and/or user equipment. | 2009-05-21 |
20090129376 | Power distribution system communication system and method - A power distribution system may incorporate a network communication capability. The network communication capability may be configured or may be configurable as a multi-tiered, mesh network. The network may have two tiers of fixed node meshes (tier | 2009-05-21 |
20090129377 | SERVICE FOR MAPPING IP ADDRESSES TO USER SEGMENTS - A system is disclosed that uses behavioral data collected by ISPs to categorize particular ISP subscribers. The behavioral data may, for example, include the identities of particular web sites and/or web pages accessed by particular subscribers, the search queries used by the subscribers to conduct Internet searches, and/or other types of behavioral information. The ISP subscribers are assigned to particular behavioral categories or “segments” using a behavioral segmentation schema that maps particular subscriber behaviors to particular behavioral segments. The ISP subscribers may also be mapped to other segment types, such as demographic segments derived from off-line data about the subscribers. The subscriber-to-segment mappings are made available to content targeting entities via a query interface that, for example, supports queries of the form “what are the segments associated with IP address X?” | 2009-05-21 |
20090129378 | SURREPTITIOUS WEB SERVER BIAS TOWARDS DESIRED BROWSERS - Embodiments of the present invention address deficiencies of the art in respect to processing requests from a client to a server and provide a novel and non-obvious method, system and computer program product for transmitting data in a surreptitious pattern. In this regard, in one embodiment of the invention, a method for processing requests from a client system to a server system through a communications network can be provided. The method can include establishing a covert packetization pattern for fragmenting data into packets before transmission, splitting a request into one or more packets according to the covert packetization pattern, transmitting each packet to a server system, responsive to reconstructing fragmented packets, recognizing the covert packetization pattern, and responsive to recognizing the covert packetization pattern, giving priority to a client system. | 2009-05-21 |
20090129379 | RECONSTRUCTING DATA ON A NETWORK - Described are computer-based methods and apparatuses, including computer program products, for parsing, flagging, and/or reconstructing data on a network. Data packets associated with user requests are distributed among a plurality of data centers for processing. The data packets are captured at the data centers for fraud detection. The captured data packets are preprocessed at the data center. The preprocessing includes disregarding data packets that are not applicable to fraud detection. The preprocessing includes indicating if data packets are applicable to fraud detection. The indicating of the applicable data packets includes parsing the data packets using particular rules optimized for fraud detection. The data packets are processed at each data center to reconstruct part of the data associated with a user. The processing of the data packets includes reconstructing the data packets based on customer information from network information and/or cookie information. The reconstructed data packets are transmitted to a central processing center (e.g., central data center). The central processing center receives reconstructed data packets from the plurality of data centers and unifies the reconstructed data packets into data associated with a user. | 2009-05-21 |
20090129380 | Determining packet forwarding information for packets sent from a protocol offload engine in a packet switching device - Disclosed are, inter alia, methods, apparatus, computer-readable media, mechanisms used in one embodiment configured for, and means for, determining packet forwarding information for packets sent from a protocol offload engine in a packet switching device. The protocol offload engine performs the protocol processing for a protocol application (e.g., BGP) running on a separate control plane processing system, and generates packets to be sent to external devices. The protocol offload engine sends these packets to one of the line cards without using the routing information lookup facility of the control plane processing system, thereby, freeing the control plane processing system to use those processing cycles to perform other tasks. | 2009-05-21 |
20090129381 | Method For Transmitting Data In a Telecommunications Network And Switch For Implementing Said Method - A method for transferring data from a first switch to a second switch selectively by line-switching or by packet-switching as well as to a switch for carrying out the method. Data packets are thereby first transferred packet-switched through a packet-switching network to the second switch. With the presence of a corresponding control signal a line-switching connection is established from the first switch to the second switch and the data are then transferred through this connection. Where applicable a renewed changeover to a packet-switching transfer is carried out. A flexible packet-switching or line-switching data transfer linked with dynamic costs between the junctions of a telecommunications network is enabled. | 2009-05-21 |
20090129382 | Method and System of Routing a Communication within a Network - A method can be used to route a communication within a network. The method can include receiving a first communication at a first edge router, wherein the first communication is a Layer 2 communication. The method can also include determining that the first communication has a destination that includes a first multicast group and a second multicast group different from the first multicast group. The method can also include encapsulating the first communication within a second communication, wherein the second communication is a Layer 3 communication, and wherein the second communication is a single communication. The method can further include sending the second communication towards the first multicast group and the second multicast group. A system can be configured to carry out the method. | 2009-05-21 |
20090129383 | HUB AND SPOKE MULTICAST MODEL - Techniques for implementing multicast messaging between spokes in a hub and spoke network are provided in the present disclosure. Multicast messages may be efficiently routed by creating separate multicast groups for upstream traffic from a source spoke to the hub (a “To Hub” group joined by the hub) and downstream traffic from the hub to spokes (a “From Hub” group joined by spokes interested in receiving multicast messages). A source spoke may send a multicast message encapsulated in a packet with the “To Hub” group address as the destination. Upon receipt, the hub may re-route the multicast message to spokes that have joined the “From Hub” group by encapsulating the original message in a packet with the “From Hub” group address as the destination. | 2009-05-21 |
20090129384 | Data mirroring in a service - Data mirroring in a service such as a virtual private LAN service is disclosed. Data packets, segments, frames, or other forms of encapsulation may be mirrored off of a core network (e.g., IP, TCP) to one or more mirroring destinations without using a parallel network. Encapsulation techniques are provided that enable packets to be mirrored and transmitted across services such as VPLS, MPLS, and others to a mirror destination. Once received at the mirror destination, mirrored packets may be used for troubleshooting in a more efficient and less resource and time-consuming manner. | 2009-05-21 |
20090129385 | VIRTUAL NETWORK INTERFACE - A virtual network has network interfaces coupled by a multipoint tunnel ( | 2009-05-21 |
20090129386 | Operator Shop Selection - An access node for an Ethernet network is connected between an access point of user devices and a broadband remote access server for access to a plurality of service providing networks. It includes a VLAN handling unit having a memory for storing identifications of Ethernet frames transmitted in a first VLAN including the access node and a local virtual router function unit of the access server in a second VLANs. Each of the second VLANs including the access node, the local virtual router function unit and one of the virtual router function units of the access server for each of the virtual router function units. A control unit commands the handling unit to transmit frames from a new user device that has connected itself to the access point into the first virtual local area network. The control unit also receives information from the access server in respect of routing frames and its commands to the handling unit to transmit frames from user device which is connected to the access point and the frames from which are transmitted into the first VLAN to be instead transmitted into one of the second VLAN as given by the information received from the broadband remote access server, the frames thereby being transmitted to the server of the respective service providing network. | 2009-05-21 |
20090129387 | EXTENDING AN IP EVERYWHERE NETWORK OVER A PLURALITY OF FLOODING DOMAINS - In one embodiment, a border node receives a message that includes routing information indicating connection of a network device to a domain. The border node then updates a routing database with the routing information, and also uses a network address for the network device to determine whether to propagate the routing information. | 2009-05-21 |
20090129388 | Sip header reduction - A SIP header reduction protocol operating on a communication network to compress the SIP header fields on SIP control messages used to initiate a SIP communication session. The new protocol is implemented on the mobile use equipment (UE) ( | 2009-05-21 |
20090129389 | METHOD FOR MANAGING FRAMES IN A GLOBAL-AREA COMMUNICATIONS NETWORK, CORRESPONDING COMPUTER-READABLE STORAGE MEDIUM AND TUNNEL ENDPOINT - A method for managing frames in a global-area communications network comprises a plurality of sub-networks linked to one another by tunnels at the ends of which there are tunnel endpoints, at least one of the sub-networks comprising at least one source device connected to one of said tunnel endpoints through said sub-network. When a given tunnel endpoint receives from a local sub-network, to which said given tunnel endpoint is connected, a frame sent out by a source device in the global-area network, the given tunnel endpoint performs the following steps: obtaining, from said frame, an address of the source device; verifying that the obtained address is included in a first list of addresses comprising addresses associated with source devices connected to remote sub-network or sub-networks distinct from the local sub-network; and in the event of positive verification, discarding said frame. | 2009-05-21 |
20090129390 | Method for transferring a stream of at least one data packet between first and second electric devices and corresponding device - Systems and methods for transferring a stream of at least one data packet between a first electronic device and second electronic device through a network-on-chip are disclosed. These systems and methods can comprise storing data packets in memory means provided in a network interface and transferring data packets from the memory means to the second electronic device. Packets can be transferred from the memory means after a quantity of packets is stored in the memory means, the quantity of packets being determined according to a value of a control parameter. | 2009-05-21 |
20090129391 | Virtual Ethernet MAC Switching - A method of sending an information package from a first data network to at least one second data network through a communications network, in particular a SDH or SONET network, comprises a first plurality of access points, a second plurality of MPLS switches, a third plurality of paths defined from each of the access points to an Ethernet switch including MPLS switching capabilities via at least one of the MPLS switches, and a fourth plurality of paths defined from the Ethernet switch including MPLS switching capabilities to each of the access points via at least one of the MPLS switches. The method further comprises receiving the information package at a specific access point and adding a header including a MPLS label to the information package. The information package including the header is sent to the Ethernet switch including MPLS switching capabilities via a path of the third plurality. The Ethernet switch includes MPLS switching capabilities and switching and sending the information package including the header to at least one further specific access point corresponding to the at least one second data network, removes the header from the information package, and sends the information package from the at least one further specific access point to the at least one second data network. | 2009-05-21 |
20090129392 | MULTIPLE QUEUE PAIR ACCESS WITH A SINGLE DOORBELL - A method for controlling access by processes running on a host device to a communication network includes assigning to each of the processes a respective doorbell address on a network interface adapter that couples the host device to the network and allocating instances of a communication service on the network, to be provided via the adapter, to the processes. Upon receiving a request submitted by a given one of the processes to its respective doorbell address to access one of the allocated service instances, the adapter conveys the data over the network using the specified instance of the service, subject to verifying, based on the doorbell address to which the request was submitted, that the specified instance was allocated to the given process. | 2009-05-21 |
20090129393 | MULTI-PLANE CELL SWITCH FABRIC SYSTEM - Cells which arrive in random sequence from the asynchronously operating exchange parts are restored into the original by a small amount of hardware. Distributing parts as inputs of a switch fabric manage serial numbers continuous for each destination. The distributing part divides an inputted variable length packet into fixed length cells, adds serial numbers corresponding to destinations to the cells, and outputs the cells to the exchange parts. The respective exchange parts deliver the cells to the objected destinations. Alignment parts as outputs of the switch fabric classify the reception cells by the number of the distributing part, and compare an expected serial number managed by the alignment part with a serial number of the destination (alignment part) of the reception cell. An identical one is stored in an aligned FIFO queue, and cells of from a packet start cell to a packet end cell are taken out. | 2009-05-21 |
20090129394 | Method and device for fragmented packet routing in virtualized environments - A method and device for routing fragmented data frames is provided. A data frame may be fragmented into a plurality of fragments, each fragment including a packet identifier and a fragment offset. The first fragment may further include a port number associated with a target partition of a plurality of partitions. If the fragment is a first fragment as determined from the fragment offset, the packet identifier and target partition is stored at a location in a hash table, the location calculated by using the packet identifier of the fragment as a hash key. Other embodiments are described and claimed. | 2009-05-21 |
20090129395 | METHOD, COMMUNICATION NETWORK, AND CONTROL UNIT FOR THE CYCLICAL TRANSMISSION OF DATA - A method transmits data on a transmission path to which a control unit and several nodes are connected. The control unit cyclically outputs data in the form of telegrams to the transmission path, thereby controlling the transmission process in order to continuously output telegrams during the entire transmission cycle time taking the transmission standard into account. The nodes exchanges data with the telegrams when passing through. Further the control unit subdivides the transmission cycle into a number of subcycles having the same length, the control unit transmitting at least one communication telegram in each subcycle into which a first node may write data for a second node located downstream in the transmission path into the communication telegram when passing through. | 2009-05-21 |
20090129396 | System and Method for Processing Settlement Information in a Network Environment Including IMS - A scheme for processing charging information in a network environment including an Internet Protocol (IP) Multimedia Subsystem (IMS) network. A component is provided for including a suitable a Multi-purpose Internet Mail Extensions (MIME) type with respect to identifying a settlement information payload for transferring in a communication protocol message to a recipient disposed in the network environment. An indicator is provided for identifying at least one version with which a body part of the communication protocol message containing the settlement information payload is compatible. | 2009-05-21 |
20090129397 | CLUSTER BRING-UP IN A DISTRIBUTED TOPOLOGY LIVENESS SYSTEM - A method is provided for establishing clusters in a distributed data processing environment having a plurality of nodes. The frequency of messages sent for the purpose of cluster formation is selected based on ranking of the nodes. Higher ranking nodes transmit such messages more frequently than lower ranking nodes. Lower ranked nodes thus are provided with an opportunity to join a cluster without first having to transmit their own messages to effectuate the joining. | 2009-05-21 |
20090129398 | STACKABLE ROUTERS EMPLOYING A ROUTING PROTOCOL - A stack of network routers is composed of at least one (elected) master unit and one or more slave units each capable of running a routing protocol. Only the master unit runs the entire routing protocol at a given time. It forwards direct update messages via a transmission control protocol to each of the slave units. These direct update messages may include specific packet formats for the protocol state machinery where such machinery is required by the routing protocol, e.g., the interface state machine and the neighbor state machine for the OSPF protocol, and for the net databases, e.g. the link state databases for the OSPF protocol, in each of the slave units. Each slave unit may run its protocol state machinery (where provided) based purely on the direct update messages received from the master. The synchronisation of the net databases may be based on snooping net update packets and a comparison of the information received thereby with verification data messages sent from the master unit. The synchronization allows the running of the routing protocol on multiple physical routers in a stack without requiring the overhead of a back-up unit that would not perform routing unless a master router unit became unavailable. | 2009-05-21 |
20090129399 | Locally Terminating an Established Connection - Aspects of the subject matter described herein relate to locally terminating an established connection. In aspects, a connection between two nodes is established. A network device lies on the path over which packets associated with the connection travel to get to either of the two nodes. After the connection is established, the network device attempts to create a safe point at which the connection can be terminated at the network device. To do so, the network device begins buffering packets and looking for information that indicates that all outstanding packets between the two nodes have been received either by one of the two nodes or have been buffered by the network device. After a safe point is reached, the network device may terminate the connection locally in a way that is transparent to the two nodes. | 2009-05-21 |
20090129400 | PARSING AND FLAGGING DATA ON A NETWORK - Described are computer-based methods and apparatuses, including computer program products, for parsing, flagging, and/or reconstructing data on a network. Data packets associated with user requests are distributed among a plurality of data centers for processing. The data packets are captured at the data centers for fraud detection. The captured data packets are preprocessed at the data center. The preprocessing includes disregarding data packets that are not applicable to fraud detection. The preprocessing includes indicating if data packets are applicable to fraud detection. The indicating of the applicable data packets includes parsing the data packets using particular rules optimized for fraud detection. The data packets are processed at each data center to reconstruct part of the data associated with a user. The processing of the data packets includes reconstructing the data packets based on customer information from network information and/or cookie information. The reconstructed data packets are transmitted to a central processing center (e.g., central data center). The central processing center receives reconstructed data packets from the plurality of data centers and unifies the reconstructed data packets into data associated with a user. | 2009-05-21 |
20090129401 | METHOD AND APPARATUS FOR STAGGERED ZONE RESOURCE ALLOCATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM - A method for staggered zone resource allocation in an orthogonal frequency division multiple access (OFDMA) system having a cluster includes: dividing a frequency resource of the OFDMA system into a plurality of time zones along a time axis; determining at least two resource allocation start zones among the plurality of time zones in at least two cells of the cluster, respectively; arranging users in each of the at least two cell according to a path loss in a descending order; and sequentially allocating the frequency resource to the arranged users from the at least two resource allocation start zones in the at least two cells, respectively. | 2009-05-21 |
20090129402 | Method and System For Scheduling Multimedia Shows - A method and system for scheduling multimedia shows have been disclosed. According to one embodiment, a computer implemented method comprises receiving digital content to be used in a multimedia show, the digital content including digital photographs, digital video, and digital music. One or more categories associated with the digital content are determined. One or more cable network destinations that are available for the multimedia show are determined. Destination and category pairs are generated from the one or more categories and the one or more cable network destinations. One or more time slots are determined that are available for the digital content. | 2009-05-21 |
20090129403 | Fueling Facility Communication - Systems, methods, and devices may provide for communications at a fueling facility. In one general aspect, a system, device, or technique for a fuel dispenser may include the ability to receive a signal including information in a first communication protocol and information in a second communication protocol, separate the signal into the first communication protocol and the second communication protocol, and process the signals in the first and second communication protocols. | 2009-05-21 |
20090129404 | DIFFERENTIATION FOR BANDWIDTH REQUEST CONTENTION - The present disclosure relates to a method and an apparatus for bandwidth contention differentiation comprising: determining a service type of a bandwidth request, setting a priority of the bandwidth request based on the determined service type, and providing contention differentiation based on the set priority. | 2009-05-21 |
20090129405 | Network Communication Bandwidth Management - A Unified Bandwidth Manager that functions as a high-level bandwidth manager to interface with and hierarchically manage a plurality of service-specific bandwidth reservation and session management systems is described. The Unified Bandwidth Manager includes at least a control system, and an interface for providing at least one of policy information or goal information to the control system. The control system is provided with a plurality of feedback inputs that are responsive to associated ongoing observation information from each of an associated observation reporting element. The control system uses the plurality of feedback inputs, together with the at least one policy information or goal information, to produce at least one element of outgoing control information. | 2009-05-21 |
20090129406 | RADIO PROTOCOL FOR MOBILE COMMUNICATOIN SYSTEM AND METHOD - Radio protocol for a next generation mobile communication system is disclosed including a radio link control layer for connecting to an upper layer through a service access point provided in advance and for connecting to a lower layer through a plurality of logic channels provided in advance. The radio link control layer includes at least one radio link control entity for transmission/reception of data to/from up-link or down-link according to a form of a data transmission mode. | 2009-05-21 |
20090129407 | PACKET CONSOLIDATION - Systems, methods, and devices for consolidating network packetized data are disclosed. Data packets are received by a consolidator. Common content and unique attributes of the packets are identified. A consolidated packet is created and the consolidated packet is transmitted in response to a condition. | 2009-05-21 |
20090129408 | METHOD AND APPARATUS FOR ENABLING TRANSPORT OF ETHERNET DATA OVER A SERIAL DIGITAL INTERFACE TRANSPORT SERVICE - A method and apparatus enables Ethernet data transport over a serial digital interface network. An Embedder/DeEmbedder for embedding Ethernet derived data and for de-embedding Ethernet derived data supports selective use of the active video region of the SDI frame and the unused HANC space for transporting Ethernet media independent interface data. | 2009-05-21 |
20090129409 | Optical Fiber and Broadband Light Source - An optical fiber and a broadband light source that can generate SC light having a broader bandwidth. A broadband light source | 2009-05-21 |
20090129410 | Fiber Laser Device Having Excitation Light Source Protection Device - In a fiber laser device equipped with at least a pumping source, a rare-earth element doped fiber and a resonator, there is provided the fiber laser device equipped with a pumping source protecting device that is between the pumping source and the resonator, that prevents a laser light generated by the resonator from being incident on the pumping source, and that has no isolator function. | 2009-05-21 |
20090129411 | OPTICAL FIBER LASER AND EXCITING METHOD USING SAME - An optical fiber laser, according to the present invention, has an optical fiber including a core to which a rare earth element is added and a clad disposed around the core, and also has an excitation light source for emitting excitation light incident on a side of the optical fiber. The optical fiber has a corrugated shape on the outer circumference of the clad along the longitudinal direction thereof; and the optical fiber is wound in a spiral form and is bundled in such a way that adjacent sides of the clad are brought into contact with one another. | 2009-05-21 |
20090129412 | Apparatus for bonding camera module, equipment for assembling camera module having the apparatus, and method of assembling camera module using the equipment - An apparatus for bonding a camera module, equipment for assembling the camera module having the apparatus, and a method of assembling the camera module using the equipment. The apparatus include: a laser generator, which generates a laser beam, and a bonding head, which is connected to the laser generator through an optical fiber and applies the laser beam propagating through the optical fiber to contact portions of a camera unit having an image sensor and lenses and a flexible printed circuit board (FPCB) electrically connected to the image sensor, so that the contact portions can be heated and bonded to each other such that the camera unit and the FPCB are bonded to each other. Thus, a process of bonding the camera module can be performed within a relatively short time, compared to the case where a hot-bar or an oven is used. | 2009-05-21 |
20090129413 | Methods and Apparatus for Generating RGB Laser Light - A dual-cavity single longitudinal mode (SLM) laser oscillator generates a pulsed laser signal having a long pulsewidth, long coherence length, and good shot-to-shot energy stability. The laser oscillator has a first cavity between an output coupler and a rear mirror and a second cavity between the output coupler and an intra-cavity mirror disposed between the output coupler and rear mirror. High-loss cavity optics and a passive Q-switch achieve a very high number of round trips that reduce the number of cavity modes down to two or three. The dual cavity design further discriminates between the remaining modes and allows SLM operation. The laser oscillator and an amplifier can be used as a pump laser for a laser system that generates red, green, and blue pulses for holographic recording. A wavelength conversion stage uses optical parametric amplifier(s), doubling crystals, and sum-frequency mixers to produce RGB light from the pump pulses. | 2009-05-21 |
20090129414 | Wavelength control in phase region of semiconductor lasers - Particular embodiments of the present invention relate generally to semiconductor lasers and laser scanning systems and, more particularly, to schemes for controlling semiconductor lasers. According to one embodiment of the present invention, a laser is configured for optical emission of encoded data. At least one parameter of the optical emission is a function of a drive current I | 2009-05-21 |
20090129415 | LIGHT TRANSMITTER AND AUTOMATIC POWER CONTROL CIRCUIT THEREOF - A light transmitter and an auto-control circuit thereof are provided. The circuit includes a driving module and a feedback module. The driving module is coupled to the feedback module and a load. The driving module provides a driving current for driving the load. The feedback module provides a bias signal to the driving module according to the change of the temperature, for adjusting the driving current and stabilizing an output power. | 2009-05-21 |
20090129416 | SEMICONDUCTOR LASER DRIVE CONTROL APPARATUS - A drive signal for driving a semiconductor laser is generated on the basis of an image signal inputted in synchronism with a pixel clock. A bias signal to the semiconductor laser is generated at a timing earlier than the drive signal by a predetermined time. The bias signal is disabled in synchronism with the leading edge of the drive signal. | 2009-05-21 |
20090129417 | Surface-Emitting Laser Diode and Method of Manufacturing the Same - A surface-emitting laser diode capable of being manufactured easily at low cost, and capable of stabilizing the polarization direction of laser light in one direction and achieving higher output is provided. A light emission section | 2009-05-21 |
20090129418 | SEMICONDUCTOR LASER DEVICE AND METHOD OF MANUFACTURING THE SAME - A method for manufacturing a semiconductor laser device includes forming a laminate having a semiconductor layer of a first conductivity type, an active layer and a semiconductor layer of a second conductivity type. The waveguide region is formed to guide light perpendicular to the direction of width by restricting the light from spreading in the direction of width in the active layer, such that the semiconductor laser device has a first waveguide region and a second waveguide region. The first waveguide region is formed to confine light within the limited active layer by means of a difference in the refractive index between the active layer and the regions on both sides of the active layer by limiting the width of the active layer. In forming the second waveguide region, light is confined therein by providing effective difference in refractive index in the active layer. | 2009-05-21 |
20090129419 | VCSEL ARRAY DEVICE AND METHOD FOR MANUFACTURING THE VCSEL ARRAY DEVICE - Provided is a VCSEL array device that includes at least a first multilayer reflective film, an active layer, and a second multilayer reflective film, formed on a substrate that extends in a longitudinal direction. Plural mesa portions are formed on the substrate by selectively removing at least a portion of the first multilayer reflective film, active layer, and second multilayer reflective film. A selectively oxidized region is formed in at least one of the first multilayer reflective film and the second multilayer reflective film. The VCSEL array device further includes an interlayer insulating film that covers at least a side portion and a bottom portion of the mesa portions, and a surface protecting film that covers the interlayer insulating film. The surface protecting film has plural grooves formed along a longitudinal direction of the substrate in which at least a portion of the surface protecting film is removed. | 2009-05-21 |
20090129420 | HIGH POWER LASER DIODE ARRAY COMPRISING AT LEAST ONE HIGH POWER DIODE LASER AND LASER LIGHT SOURCE COMPRISING THE SAME - Array comprising high power laser diode comprising laser light emitters, each defining, in a direction perpendicular to direction of propagation of an output laser beam, a fast axis and a slow axis; fast axis collimating means for collimating output laser beams in fast axis direction; and slow axis beam shaping means for collimating or focussing output laser beams in slow axis direction, said slow axis beam shaping means disposed external to said high power laser diode; wherein said laser light emitters are displaced relative to each other in fast axis direction or in fast and slow axis direction by equidistant spacings, respectively; and including optical means for forming output laser beam profile in far field of all laser light emitters consisting of said fast and slow axis collimated or focussed output laser beams arranged adjacently in seamless manner in one or two dimensions with optical fill factor of about 100%. | 2009-05-21 |
20090129421 | SEMICONDUCTOR LASER DIODE - In an edge emitting laser having a window region with a ridge-waveguide structure, particularly, in a short cavity type of a laser operated with a low current, there has been a problem of its operating current being increased due to current leakage of the window portion. To solve this problem, in the window region, between an n-type substrate and a p-type cladding layer, a semi-insulating semiconductor layer into which Ru is doped is inserted. Alternatively, a stacked structure of a Ru-doped layer and a Fe-doped layer is introduced. | 2009-05-21 |
20090129422 | HIGH-VOLUME ON-WAFER HETEROGENEOUS PACKAGING OF OPTICAL INTERCONNECTS - An optical connector module complete with optoelectronic devices supporting integrated circuitry, and connector housing may be fabricated on a wafer level. A plurality of cavities may be formed on the backside of the wafer to accommodate an optoelectronic device. Active circuitry may be formed in a front side of the wafer. Through-vias electrically connect the front side to the back side. The backside of the wafer is overmolded with a polymer layer which when singulated into individual dies forms the plastic housing of an optical connector module. | 2009-05-21 |
20090129423 | CENTRIFUGAL TURBINE BLOWER WITH GAS FOIL BEARINGS - Disclosed is a centrifugal turbine gas blower with foil bearings for use with a fast axial flow laser. The blower utilizes variable components in order to operate at different speeds for multiple applications. In addition, a bypass load has been incorporated to avoid a surge condition. The blower utilizes foil bearings that are self-lubricating in order to achieve improved efficiency and maximized speeds during operation. The bearings are designed with a bump layer that provides damping for pre-load. Additionally, the backplate of the thrust assembly contains holes in order to reduce the thrust load and to balance the force on the impeller. | 2009-05-21 |
20090129424 | Dendrimer Laser - A distributed feedback laser having a conjugated dendrimer as the active lasing component, and a method for patterning conjugated dendrimers. | 2009-05-21 |
20090129425 | Laser devices using gain media operating in out of phase mode - The basic gain medium enclosure for laser devices comprises two parallel lateral mirrors which geometrically define the extent of the gain medium enclosure and which allow the formation of lateral stationary sinusoidal waves. | 2009-05-21 |
20090129426 | Semiconductor System Having a Ring Laser Fabricated by Epitaxial Layer Overgrowth - The present invention provides a ring laser system comprising forming an optical core by an epitaxial layer overgrowth over an intermediate layer, forming multi-quantum wells adjacent to the optical core and forming an outer structure further comprising a total internal reflector, wherein forming photons within the multi-quantum wells further comprises circulating the photons within the ring laser structure comprising the outer structure, the multi-quantum wells, and the optical core. | 2009-05-21 |
20090129427 | OPTICAL MODULE - An optical module | 2009-05-21 |
20090129428 | COOLING DEVICE FOR USE IN AN ELECTRIC ARC FURNACE - A cooling device for use in an electric arc furnace is provided. The cooling device provides a novel and effective method for cooling burners, lances, enclosures, and other devices used in high heat environments, such as in Electric Arc Furnaces. According to one aspect of the invention used in a steel making process in an electric arc furnace, a cooling tube is inserted into a cooling cavity in a burner. Cooling fluid is injected through the cooling tube into the cavity to cool the portions of the burner adjacent the cooling cavity. The cooling fluid is then extracted from the cavity through a concentric space between the cooling tube and the cooling cavity. According to another aspect of the present invention, a cooling fluid distribution flange is provided to distribute cooling fluid to a plurality of cooling tubes to inject cooling fluid into a plurality of associated cooling cavities. | 2009-05-21 |
20090129429 | MELTING AND MIXING OF MATERIALS IN A CRUCIBLE BY ELECTRIC INDUCTION HEEL PROCESS - Apparatus and method are provided for electric induction heating and melting of a transition material that is non-electrically conductive in the solid state and electrically conductive in the non-solid state in an electric induction heating and melting process wherein solid or semi-solid charge is periodically added to a heel of molten transition material initially placed in a refractory crucible. Induction power is sequentially supplied to a plurality of coils surrounding the exterior height of the crucible at high power level and high frequency with in-phase voltage until a crucible batch of transition material is in the crucible when the induction power is reduced in power level and frequency with voltage phase shifting to the induction coils along the height of the crucible to induce a unidirectional electromagnetic stir of the crucible batch of material. | 2009-05-21 |
20090129430 | Method for Monitoring the Functionality of a Temperature Sensor - In a method for monitoring the functionality of a temperature sensor that can deliver an electrical signal as a function of the measured temperature and is disposed, in particular, in the cooling water circuit of an internal combustion engine, the persistence of the temperature sensor in the high signal range is made possible by a method encompassing the following steps: Characterizing the sensor as possibly faulty if the sensor indicates, upon engine shutdown, at least a maximum value of the cooling fluid temperature; determining a first gradient of the cooling fluid temperature, measured by the possibly faulty sensor, up to a first point in time after engine shutdown, and characterizing the sensor as fault-free if the gradient exceeds a minimum value; determining a second gradient of the cooling fluid temperature, measured by the possibly faulty sensor, between the point in time and a point in time after engine shutdown, and characterizing the sensor as fault-free if the second gradient exceeds a minimum value; determining the cooling fluid temperature measured by the possibly faulty sensor at a point in time after engine shutdown, and characterizing the sensor as fault-free if the cooling fluid temperature falls below a maximum value. | 2009-05-21 |
20090129431 | IMAGING METHOD TO VERIFY ELECTRICAL CONDUCTIVITY ACROSS LIGHTNING STRIKE PROTECTION BOUNDARIES - A rapid image-based method for validating good electrical contact between existing LSP material on a structure, and LSP material on an applied patch, thus ensuring continuous LSP through the patch. The method and apparatus are used in the repair of LSP by validating an electrical connection between new and existing LSP materials. It can also be used during manufacturing to ensure good contact between sections of LSP material. | 2009-05-21 |
20090129432 | POWER SEMICONDUCTOR MODULE WITH TEMPERATURE MEASUREMENT - A power semiconductor module with temperature measurement is disclosed. One embodiment provides a conductor having a first end and a second end. The second end is thermally coupled at a substrate. A device including temperature sensor is thermally coupled at the first end and configured to determine a temperature at the second end using the temperature sensor. | 2009-05-21 |
20090129433 | Method and Device for Temperature Prediction - A method and a device for temperature prediction or measurement are disclosed. The method comprises: acquiring temperature data outputted from a thermometer probe; selecting some temperature data within a valid time period from the acquired data; determining a first specific time point according to the slope change rate of the temperature curve within the valid time period and an initial temperature within the valid time period; determining a second specific time point according to the slope at or before the first specific time point; calculating a value of temperature y according to an hyperbolic formula; determining a final temperature of the object according to the maximum slope of the temperature curve in the valid time period, the initial temperature of the temperature curve in the valid time period, and the value of temperature y. | 2009-05-21 |
20090129434 | Method And Device For Detecting A Rise In Temperature In A Cold Chamber - The invention concerns a method for detecting a temperature rise, in particular a preservation temperature, in a cooler designed for preserving products, comprising liquefying a detection substance ( | 2009-05-21 |
20090129435 | Probe structure - The present invention discloses an improved probe structure, which is installed in the body of an infrared clinical thermometer and comprises a plastic hollow casing having an opening; a curved block annularly arranged inside the opening; a hollow sleeve arranged inside the casing and along the perimeter of the opening; a temperature sensor arranged inside sleeve and below the curved block; a support element arranged inside the sleeve and supporting the temperature sensor; and a thermal insulation ring encircling the temperature sensor and pressing against the inner wall of the sleeve. The thermal insulation ring has an outer diameter larger than a width of the temperature sensor, and an air gap is thus formed between the temperature sensor and the inner wall of the sleeve; the top of the thermal insulation ring has an altitude higher than the top of the temperature sensor, and another air gap is thus formed between the temperature sensor and the curved block. Thereby is effectively retarded heat conduction from the external to the temperature sensor. | 2009-05-21 |
20090129436 | Method and device for measuring the temperature of an exhaust gas flow in an exhaust line of an internal combustion engine - A device for measuring a temperature of an exhaust gas flow in an exhaust branch of an exhaust gas section of an internal combustion engine is disclosed. A sub-region of the exhaust branch is configured as a parabolic mirror having a focal point positioned outside of the exhaust branch. The device includes a side channel member attached to the exhaust branch and having an open end adjacent to the exhaust branch and a closed end; and a radiation sensitive sensor disposed in the side channel member and at the focal point. The open end is in fluid communication with an interior of the exhaust branch through a cutout of the exhaust branch so that the sensor is coupled to radiation of the exhaust gas flow for measuring a temperature of the exhaust gas flow. A related method is also disclosed. | 2009-05-21 |
20090129437 | PROBE COVER FOR EAR THERMOMETER AND MANUFACTURING METHOD THEREOF - The present invention provides a probe cover for an ear thermometer and a manufacturing method thereof. The probe cover is for sheathing a measuring probe of the ear thermometer, and an engaging means is provided at a bottom of the measuring probe. The probe cover comprises a main body of a hollow structure, an abutting segment and a base. Therein, the main body has an open end and a closed end opposite to the open end. An assembling direction extending from the open end toward the closed end is where the measuring probe is assembled along. Further, the main body has a diameter gradually reducing along the assembling direction. The closed end allows infrared rays to be received by the measuring probe to pass therethrough. Therein, the abutting segment is provided at the open end of the main body, and the base is annularly provided around a periphery of the abutting segment. The probe cover is characterized in being integrally formed, and having an annular shoulder provided at the abutting segment for accommodating the engaging means of the ear thermometer, as well as a plurality of separated protuberances, which are formed inwardly at a combining portion between the abutting segment and the base, for being engaged with the engaging means of the ear thermometer so that the probe cover can be firmly engaged with the measuring probe. | 2009-05-21 |
20090129438 | Devices and methods for reducing effects of device mismatch in temperature sensor circuits - A temperature sensor having one or more mirror circuits output temperature dependent output signals is disclosed in one embodiment. The temperature sensor includes a sampling circuit coupled to receive a clock signal that samples the output signals for a duration of a predetermined number of clock cycles. The temperature sensor additionally includes a phase control circuit that receives the clock signal and generates a control signal that enables subsequent sampling operations. Each subsequent sampling operation has a duration of the predetermined number of clock cycles. The control signal from the phase control circuit further enables input and output terminals of respective circuit components in the mirror circuits to be switched for each subsequent sampling operation. | 2009-05-21 |
20090129439 | DIGITAL TEMPERATURE INFORMATION GENERATING APPARATUS FOR SEMICONDUCTOR INTEGRATED CIRCUIT - A digital temperature information generating apparatus for a semiconductor integrated circuit includes a temperature information generating block that, in response to a reset signal, latches and decodes multiple divided signals obtained by multiple-dividing a second control signal at a timing corresponding to a change in period of a first control signal according to a temperature, and generates temperature information, and pads through which the generated temperature information is output. | 2009-05-21 |
20090129440 | Sensor - A sensor, in particular a thermal sensor and/or gas sensor, encompassing an electrical sensor component having an electrical property whose value changes in temperature-dependent fashion, wherein the temperature-dependent electrical property is a resistance or an impedance. Thermal and electrical decoupling of the active structure from the substrate is accomplished by way of porous silicon and/or a cavity manufactured by electropolishing. | 2009-05-21 |
20090129441 | UWB Receiver and a Data Transmission Method and System - The present invention relates to an ultra-wideband signal receiver comprising:
| 2009-05-21 |
20090129442 | CDMA UNII LINK - Techniques and systems for mediating traffic between a network transceiver and a user transceiver in a wireless communication system are disclosed. A network link with the network transceiver is maintained using a network unit, and a user link with the user transceiver is maintained using a user unit. One or more replicas of a signal received from the network transceiver on a downlink path or from the user transceiver on an uplink path, respectively, are generated. The one or more replicas of the signal wirelessly are then transmitted on a hop between the network unit and the user unit along with a bi-directional control channel. | 2009-05-21 |
20090129443 | Multi-Channel Transmission System, Transmitting Apparatus and Transmitting Method - A transmitter ( | 2009-05-21 |
20090129444 | Multi-code multicarrier code division multiple access system in frequency-selective fading channels - The present invention relates to a multi-code multicarrier code division multiple access system in frequency-selective fading channels. According to the present invention, the transmitting device thereof uses the mapping/spectrum-spreading units to receive the plurality of substreams, map and spread the plurality of substreams, and produce a plurality of biorthogonal keying data items. The plurality of repetition units receives the plurality of biorthogonal keying data items, respectively, repeats the plurality of biorthogonal keying data items, and produces the plurality of repeated data item. The shifting units shift the plurality of repeated data items, respectively, and produce a plurality of shifted data items. The shifted data items are orthogonal to each other. Thereby, the peak-to-average-power-ratio (PAPR) is lowered. | 2009-05-21 |
20090129445 | INTERFERENCE CHARACTERISATION AND REMOVAL - A method of evaluating the usage in a received signal of codes from a tree of codes that can be used to orthogonalise communications signals, the method including testing to determine if a given code is in use in the received signal and deducing from the result and from the tree structure the need to test in the received signal for the use of the codes in the portion of the tree depending from said given code. The invention also includes corresponding apparatus and software. | 2009-05-21 |
20090129446 | METHOD AND APPARATUS FOR GENERATING PHASE SHIFTED LOCAL OSCILLATOR SIGNALS FOR A FEEDBACK LOOP ON A TRANSMITTER - A transmitter is provided with a local oscillator (LO) processing unit to maintain stability in the transmitter's feedback loop. The LO processing unit includes at least one delay locked loop (DLL) and a programmable divider to generate phase shifted LO signals for adjusting a loop phase of the feedback loop in the transmitter. The generated phase shifted LO signals are of both a coarse and fine phase shifted nature. The adjustability and control of the coarse and fine phase shifting of the LO signals maintains linearity in the transmitter feedback loop. | 2009-05-21 |
20090129447 | EFFICIENT JOINT DETECTION - K data signals, or bursts, are transmitted over a shared spectrum in a code division multiple access communication format. A combined signal is received and sampled over the shared spectrum, as a plurality of received vector versions. The combined signal includes the K transmitted data signals. A plurality of system matrices and an associated covariance matrix using codes and estimated impulse responses of the K data signals is produced. Each system matrix corresponds to a received vector version. The system and covariance matrices are extended and approximated as block circulant matrices. A diagonal matrix of each of the extended and approximated system and covariance matrices are determined by prime factor algorithm-fast Fourier transform (PFA-FFT) without division of the matrix. The received vector versions are extended. A product of the diagonal matrices and the extended received vector versions is taken. An inverse block discrete Fourier transform is performed by a PFA-FFT on a result of the product to produce the estimated data of the K data signals. | 2009-05-21 |
20090129448 | Apparatus and Method For Generating Scrambling Codes - A wireless WCDMA (wideband code division multiple access) receiver comprises a plurality of fingers, a mask engine, a plurality of delay mask scrambling code generators and a maximal ratio combiner. Each finger process a path of a received multi-path signal having an associated delay. For each of the delays, the mask engine provides a corresponding delay mask to a delay mask scrambling code generator, which then provides a scrambling code with the appropriate offset, or delay, to the requisite finger. Output signals from the fingers are provided to the maximal ratio combiner. | 2009-05-21 |
20090129449 | RECEIVED SIGNAL DETERMINATION METHOD, POSITIONING DEVICE, AND ELECTRONIC INSTRUMENT - A received signal determination method includes: receiving a positioning signal; performing correlation calculations on the received positioning signal using a code replica of one spreading code among the plurality of spreading codes; selecting a total peak value and a remote peak value, the total peak value being a first maximum correlation value among correlation values obtained by the correlation calculations, and the remote peak value being a second maximum correlation value among correlation values apart from a phase of the total peak value by a phase equal to or greater than a given phase; changing a threshold value condition for the total peak value based on the remote peak value; and determining whether or not the received positioning signal is spread-modulated with the one spreading code by determining whether or not the total peak value satisfies the threshold value condition. | 2009-05-21 |
20090129450 | Apparatus and method for corresponding frequency synchronization in on-channel repeater - Provided is a frequency synchronizing apparatus and method that can synchronize frequencies between receiving signals and transmitting signals by extracting a carrier error and sampling timing error information in a synchronization process of the receiving signal from a main transmitter or another repeater and reflecting them in the transmitting signal in an on-channel repeater. The apparatus includes a carrier recovery means for compensating a carrier frequency error of a receiving signal; a timing recovery means for compensating a sampling timing error of the receiving signal; a carrier error reflecting means for reflecting the carrier frequency error extracted from the carrier recovery means to a transmitting signal; and a timing error reflecting means for reflecting the sampling timing error extracted from the timing recovery means to the transmitting signal. The present invention is used to form an on-channel repeating network in any transmission system including a digital television broadcasting system. | 2009-05-21 |
20090129451 | Data Transmission Rate Adaptation in a Wireless Communication System - A method for controlling a data transmission rate of at least one transceiver in a wireless system, the transceiver including a transmitter and a receiver, the method including the steps of: determining a signal quality characteristic corresponding to a signal received at the receiver by measuring a difference between one or more reference constellation points and one or more received constellation points, the signal quality characteristic representing an estimation of signal degradation through the wireless communication channel; and modifying a data transmission rate of the transmitter as a function of the signal quality characteristic. The step of modifying the data transmission rate of the transmitter includes: determining lower and upper threshold levels representing reference minimum and maximum signal quality characteristics, respectively, corresponding to the data transmission rate; measuring a signal quality characteristic of the received signal; determining whether the measured signal quality characteristic is within the lower and upper threshold levels; maintaining the data transmission rate when the measured signal quality characteristic is between the lower and upper threshold levels; and increasing the data transmission rate when the measured signal quality characteristic is less than one or more lower threshold levels associated with one or more corresponding higher data rates. | 2009-05-21 |
20090129452 | Method and Apparatus for Producing a Desired Data Compression Output - A method and apparatus for testing the functionality of a data decoder is provided. The functionality of a decoder is examined through the used of a functional bitstream. The functional bitstream is a bitstream which when decoded by a properly functioning decoder, produces a desired output. Such a bitstream can be created by receiving an input bitstream, compressing the input bitstream, thereby creating a compressed input bitstream. The compressed input bitstream is then decompressing, thereby creating an intermediate bitstream. The intermediate bitstream is then compressed, thereby creating a compressed intermediate bitstream. The compressed intermediate bitstream is then decompressed, thereby creating an output bitstream. Finally, a comparison is performed to determine if the output bitstream is equivalent to a desired bitstream. | 2009-05-21 |
20090129453 | METHOD FOR IDENTIFYING NOISE SOURCES FOR AUTOMATION DEVICES, AND NOISE SOURCE IDENTIFICATION UNIT THEREFORE - A method for identifying noise sources for automation devices ( | 2009-05-21 |
20090129454 | RATE SELECTION WITH MARGIN SHARING - Rate selection with margin sharing in a system with independent data stream rates is presented. Signal-to-Noise Ratio (SNR) estimates are obtained for each stream. Rates are selected for the streams based on the SNR estimates, such that at least one data stream has an SNR margin below a threshold, each remaining data stream has an SNR margin above a respective threshold, and the total SNR margin for all streams is above a total threshold. For rate selection with margin sharing with a vector-quantized rate set, SNR estimates are obtained for usable transmission channels. The total SNR margin is determined for each rate combination based on the estimates. Each rate combination is associated with a specific number of data streams to transmit, a specific rate for each data stream, and a specific overall throughput. The combination with the highest overall throughput and non-negative total SNR margin is selected. | 2009-05-21 |
20090129455 | APPARATUS FOR AND METHOD OF AUTOMATICALLY CONTROLLING SKEW BETWEEN TRANSMITTED DATA - Provided is an apparatus for and method of automatically controlling skew between transmitted data, which is caused when a common low-speed field-programmable gate array (FPGA) transmits signals having a transmission rate in the range of tens of Gbps to an optical transponder. The apparatus and method can transmit data with a transmission rate of several Gbps irrespective of the type of the FPGA. | 2009-05-21 |
20090129456 | RECEIVER WITH MULTIPLE ANTENNAS AND METHOD OF RECEIVING SIGNALS - Provided are a multiple antenna receiver and a method of receiving a signal. A multiple antenna receiver includes a plurality of antennas to receive a plurality of received symbols, a QR decomposition unit to perform QR decomposition for a channel matrix, a Q-received symbol generator to generate Q-received symbols corresponding to the plurality of antennas, a subtractor to remove a component corresponding to at least one neighbor symbol from a target received symbol corresponding to one of the Q-received symbols, an adder to add a signal component to the target received symbol, a first FDE to perform frequency domain equalization for an output of the subtractor, and a second FDE to perform frequency domain equalization for an output of the adder. | 2009-05-21 |
20090129457 | EQUALIZER CIRCUIT - In an equalizer circuit of one aspect, a first Fourier transform circuit Fourier-transforms an input signal and outputs a corresponding first Fourier-transformed signal, and a first extracting circuit extracts a plurality of pilot symbols from the first Fourier-transformed signal. An inverse Fourier transform circuit calculates a complex gain of each path of the input signal by inverse-transforming the plurality of pilot symbols extracted by the first extracting circuit. A detecting circuit detects at least one of a power value and a mean amplitude of the input signal, and a coefficient determining circuit determines a coefficient corresponding to the at least one of the power value and the mean amplitude detected by the detecting circuit. A second extracting circuit extracts complex gains having a power larger than a threshold obtained by multiplying the coefficient determined by the coefficient determining circuit by a value obtained by integrating the power for a period of time, wherein the power is obtained from the complex gains of each path of the input signal calculated by the inverse Fourier transform circuit. A second Fourier transform circuit Fourier-transforms the extracted complex gains from the second extracting circuit to obtain a corresponding second Fourier-transformed signal, and an equalizing calculation circuit equalizes the input signal using the second Fourier-transformed signal. | 2009-05-21 |