11th week of 2015 patent applcation highlights part 34 |
Patent application number | Title | Published |
20150071244 | METHOD FOR TRANSMITTING AND RECEIVING SYSTEM INFORMATION VIA A BROADCAST CHANNEL (BCH) AND A DOWNLINK SHARED CHANNEL (DL_SCH) - A method for receiving system information via a broadcast control channel (BCCH) to which a broadcast channel (BCH) and a downlink shared channel (DL_SCH) are mapped, the method including receiving, by a user equipment (UE), a block of first system information from a base station via the BCH, and receiving, by the UE, a first block of second system information from the base station via the DL_SCH. The first block of second system information is scheduled with a fixed time offset. The method further includes receiving, by the UE, a plurality of second blocks of second system information from the base station via the DL_SCH. | 2015-03-12 |
20150071245 | BASE STATION AND MOBILE STATION - In the present invention, a wireless transmission system includes a plurality of mobile stations in a cell area, and a base station. The base station divides each of an uplink frame and a downlink frame into a plurality of blocks, assigns a specific one of the plurality of blocks to each of the plurality of the mobile stations, assigns a specific frequency channel to the mobile station, and notifies the specific block and the specific frequency channel to the mobile station. The length of each of the plurality of blocks is optional, and a sum of the lengths of the plurality of blocks is equal to the length of the frame. | 2015-03-12 |
20150071246 | METHOD OF TRANSMITTING AND RECEIVING ACKNOWLEDGMENT SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - A method of receiving an acknowledgement (ACK) signal from at least one access terminal (AT) in a wireless communication system is disclosed. More specifically, the method includes transmitting at least one packet via a packet data channel from an access network (AN), receiving at least one ACK signal from the at least one AT using same channelization resources, wherein each AT is assigned a code specific to each AT, and identifying the ACK signal corresponding to the transmitted packet from the received at least one ACK signal. | 2015-03-12 |
20150071247 | MODEM AND METHOD FOR HANDING OVER IP MULTIMEDIA SUBSYSTEM SESSIONS FROM A PACKET-SWITCHED NETWORK TO A CIRCUIT-SWITCHED NETWORK - A modem and a method for handing over Internet protocol (IP) multimedia subsystem (IMS) sessions from a packet-switched network to a circuit-switched network. One embodiment of the modem includes: (1) a physical layer through which IMS packets for a plurality of IMS sessions are transmittable and receivable, and (2) a control layer configured to gain access to respective IMS session data for the plurality of IMS sessions, the respective IMS session data originating from a host IMS application. | 2015-03-12 |
20150071248 | TECHNIQUES FOR RELOCATING A BACKHAUL CHANNEL BETWEEN A SMALL CELL BASE STATION AND A MACRO CELL BASE STATION - Examples are disclosed for handover/relocation of a backhaul channel between a small cell base station and a macro cell base station. The handover/relocation may be responsive to possibly changing conditions associated with a wireless link over which the backhaul channel may be established. Other examples are described and claimed. | 2015-03-12 |
20150071249 | LONG-TERM EVOLUTION CIRCUIT SWITCHED FALL BACK ENHANCEMENTS - An architecture is described that can provide enhancement with respect to circuit switched fall back. In particular, the architecture can reduce the signaling and delay of conventional systems that are necessitated by establishing a radio resource control connection prior to establishing the circuit switched fall back connection. For example, when user equipment is not in a radio resource control connected state at the time of a circuit switched fall back call, the radio resource control connection can be at least partially avoided by responding to a radio resource control connection request message with a radio resource control connection reject message that includes target cell reselection information. | 2015-03-12 |
20150071250 | DATA FORWARDING METHOD, DEVICE, AND COMMUNICATIONS SYSTEM - Embodiments of the present invention provide a data forwarding method, device, and communications system, which relate to the field of communications and can achieve accuracy and continuity of data transmission during carrier aggregation for cells between base stations. The method includes: sending, by a primary base station, a first message to a secondary base station, where the first message is used to instruct the secondary base station to perform handover, and the first message includes an identifier of a target base station; confirming, by the primary base station, that the secondary base station forwards data to the target base station; and sending, by the primary base station, a second message to a user equipment, where the second message is used to instruct the user equipment to acquire the data from the target base station. The embodiments of the present invention are used for data forwarding. | 2015-03-12 |
20150071251 | L2 TUNNELING BASED LOW LATENCY SINGLE RADIO HANDOFFS - An example of this invention provides low latency handovers between Mobile WiMAX and 2G/3G/LTE networks with only a single radio transmitting at any given point in time, by establishing L2 tunnel between 3GPP MME and WiMAX ASN for control plane signaling to perform pre-registration, pre-authentication and context transfer to the target network, while UE maintains its connection to the source network, and by setting up bearer path for packet forwarding between Servicing Gateway and WiMAX ASN. An example of this invention uses a virtual eNB to facilitate low latency L2 handoffs to legacy 2G/3G networks with minimum impact to SGSN and MME. | 2015-03-12 |
20150071252 | Determination of Appropriate Radio Resource to be Requested in Case of a Circuit-Switched (CS) Fallback Procedure - A system and method for implementing fallback on a wireless device for circuit switched fallback from a first network that does not provide a circuit switched domain service is presented. A paging message is received from the first network. The paging message instructs the wireless device to implement circuit switched fallback to a circuit switched network. The paging message is inspected for information indicative of a service associated with the paging message, and a channel type suitable for the service is determined from the information indicative of the service. A request message for initiating the establishment of a radio connection is transmitted. The request message identifies the suitable channel type, and the service is used on the circuit switched network. | 2015-03-12 |
20150071253 | Method, Codebook and Base Station for Precoding - A method, a codebook, and a Base Station (BS) for precoding are provided. The precoding method includes: obtaining a total uplink power of a User Equipment (UE); if the total uplink power is greater than ¾ of a rated total transmit power of antennas, selecting a codeword from a first codebook with imbalanced power between layers; otherwise, selecting a codeword from the first codebook and a second codebook with balanced power between layers, so as for precoding data to be transmitted according to the selected codeword. | 2015-03-12 |
20150071254 | Adaptation of Transmission Parameters - A radio frequency communication device ( | 2015-03-12 |
20150071255 | Sensor Data Transport and Consolidation Within Communication Nodes in a Network - In one embodiment, sensor data is transported in a network to a rendezvous point network node, which consolidates the information into a consolidated result which is communicated to the destination. Such consolidation by a network node reduces the number of paths required in the network between the sensors and the destination. One embodiment includes acquiring, by each of a plurality of originating nodes in a wireless deterministic network, external data related to a same physical event; communicating through the network said external data from each of the plurality of originating nodes to a rendezvous point network node (RP) within the network; processing, by the RP, said external data from each of the plurality of originating nodes to produce a consolidated result; and communicating the consolidated result to a destination node of the network. In one embodiment, the network is a low power lossy network (LLN). | 2015-03-12 |
20150071256 | METHOD FOR SETTING SYNCHRONIZATION BETWEEN DEVICE-TO-DEVICE COMMUNICATION TERMINALS BASED ON CELLULAR COMMUNICATION SYSTEM - A method for setting synchronization between terminals performing device-to-device (D | 2015-03-12 |
20150071257 | RADIO RESOURCE REQUEST FOR IRAT MEASUREMENT IN TD-HSUPA/TD-HSDPA - A user equipment (UE) may achieve fast inter radio access technology (IRAT) measurement and better IRAT handover performance to effectively avoid call drops via smooth IRAT handover to other RATs during Time Division High Speed Downlink/Uplink Packet Access (TD-HSDPA/TD-HSUPA) data transmission. In some instances, the UE may speed up the IRAT measurement by request a resource allocation grant preference from a base station. The request indicates a reduced number of time resources and an increased number of other resources. | 2015-03-12 |
20150071258 | RANDOM ACCESS ALGORITHM FOR LTE SYSTEMS - A method for initial synchronisation in a random access procedure in LTE standards provides dividing the Physical Random Access Channel (PRACH) into a plurality of tiles, each comprising by a adjacent subcarriers, over which the channel response is assumed to be substantially flat, i.e. the frequency response is replaced over each subcarrier of a tile with an average frequency response. In an embodiment, an algorithm for initial synchronization is provided on the basis of a generalized likelihood ratio test (GLRT). | 2015-03-12 |
20150071259 | Scheduling method and electronic device using the same - A scheduling method for an electronic device is disclosed. The electronic device comprises a first wireless module and a second wireless module for transmitting and receiving wireless signals of a first wireless communication system and a second wireless communication system respectively. The scheduling method comprises determining an arrival timing of specific frame periodically transmitted by a base station of the first wireless communication system; determining an interval covering the arrival timings of the specific frame; disabling the second wireless module during the interval for facilitating the first wireless module to hunt the specific frame; and enabling the second wireless module when the interval expires. | 2015-03-12 |
20150071260 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL TO AND FROM NETWORK AT USER EQUIPMENT IN A WIRELESS COMMUNICATION SYSTEM - A method for transmitting a signal to a transmitter at a receiver in a wireless communication system is disclosed. The method includes receiving first information to be transmitted to the transmitter from a higher layer and activating a timer, receiving second information to be transmitted to the transmitter from the higher layer, and transmitting a resource allocation request message to the transmitter, for transmitting the first and second information, upon expiration of the timer. | 2015-03-12 |
20150071261 | METHOD AND DEVICE FOR MANAGING TAG OF CELL IN COMMUNICATION SYSTEM - This description suggests a technique of controlling the timing advance group (TAG) of a cell. In particular, this description suggests a method of managing the TAG in a communication system. The method may include receiving a control signal indicating a cell by user equipment (UE); putting the cell in a first TAG by the UE in response to the control signal, wherein the first TAG includes only at least one secondary cell of which the uplink timing is not decided; performing a random access procedure on the cell in the first TAG by the UE; and putting the cell in a second TAG from the first TAG by the UE. | 2015-03-12 |
20150071262 | Method and Apparatus for Signaling That Stations are Awake and Ready to Receive Data - A method, apparatus and software configured to compile a traffic indication message indicating downlink traffic is waiting for a plurality of users; and only for each nth ones of the users for which a response to the traffic indication message is received, the response identifying the nth user in a time period corresponding to a portion of the traffic indication message which indicates downlink traffic is waiting for that user, schedule the downlink traffic in each nth slot corresponding to the time period. A method, apparatus and software configured to determine that a received traffic indication message indicates downlink traffic is waiting for a particular user; map a portion of the traffic indication message, that indicates the downlink traffic is waiting for the particular user, to an uplink time period; and send, in the mapped uplink time period, a response indicating that the particular user is awake. | 2015-03-12 |
20150071263 | CHANNEL QUALITY INDEX (CQI) REPORTING IN WIRELESS NETWORK - A method of wireless communication in a wireless network includes transmitting synchronization shift (SS) bits with a channel quality index (CQI) report. The method also includes indicating, via the synchronization shift bits, one or more preferred time slots for receiving a high speed data transmission. | 2015-03-12 |
20150071264 | COMMUNICATION METHOD AND APPARATUS FOR CONTROLLING DATA TRANSMISSION AND RETRANSMISSION OF MOBILE STATION AT BASE STATION - Disclosed is a communication method for controlling data transmission of a mobile station at a base station. The method comprises the steps of: determining, by the base station, a transmission operation to be performed by the mobile station in next transmission time interval based on HARQ and schedule result; sending, in a downlink by the base station, an ACK/NACK packet, an indicator indicating the type of the transmission by the mobile station and a resource use command for the used resource based on the determined transmission operation; receiving, by the mobile station, the ACK/NACK packet, the indicator and the resource use command sent from the base station, and performing respective transmission operations according to the received ACK/NACK packet, indicator and resource use command without using any data-associated signaling in an uplink. | 2015-03-12 |
20150071265 | METHOD AND APPARATUS FOR SELECTING A RADIO LINK CONTROL PROTOCOL DATA UNIT SIZE - A method and apparatus are used to create RLC PDUs in advance of the E-TFC selection for the MAC PDU that will include this or these RLC PDU(s). The apparatus may be configured to pre-generate RLC PDUs for transmission in a later TTI. This approach avoids the large peak processing requirement due to the tight delay constraint if any RLC PDU to be included into a MAC PDU had to be created after the determination of the size of this MAC PDU, i.e. after E-TFC selection. The method and apparatus maintain an approximate match between the size of an RLC PDU and the size of the MAC PDU it is included into. Maintaining this approximate match ensures that the RLC PDU error rate due to HARQ residual errors remains low. This approach may be designed as “semi-radio aware” or “radio-aware with delay”. | 2015-03-12 |
20150071266 | Extended USF Addressing Space - The present invention relates to assigning addresses to communication devices in a radio access network and notifying communication devices of scheduled uplink transmission time periods. Related methods, communication devices and control units are disclosed. A method of assigning an address to a communication device in a radio access network for use in notification of scheduled uplink transmission time periods for the communication device is provided. The method comprises assigning to the communication device an uplink state flag (USF) value. Furthermore, the method comprises assigning to the communication device an extended USF (eUSF) value. The address assigned to the communication device is a combination of the assigned USF value and the assigned eUSF value. By means of the eUSF value, the normal address range provided by the USF is extended, thereby facilitating use of more communication devices in the radio access network. | 2015-03-12 |
20150071267 | METHOD, DEVICE, AND SYSTEM FOR TRANSMITTING DATA BASED ON HARQ - Embodiments of the present invention provide a method, a device, and a system for transmitting data based on a hybrid automatic repeat request (HARQ). The method includes: adjusting, according to current physical resources, a channel quality indicator (CQI) fed back by a terminal to obtain an adjusted CQI and determining an initial transmit power corresponding to the adjusted CQI; calculating an optimum number N | 2015-03-12 |
20150071268 | REGULATORY COMPLIANCE FOR WIRELESS DEVICES - A wireless device may be subject to regulations based on the location (e.g. country). Accordingly, the wireless device may need to identify regulations for its current location. A lookup table or database that includes regulations for different locations may be used for identifying the regulations for the current location of the wireless device. The lookup table may be stored locally on the wireless device or retrieved over a network. The identified regulations may be used to modify certain operating parameters of the wireless device to comply with the local regulations and determine whether or not to associate with an incorrectly configured Access Point. | 2015-03-12 |
20150071269 | Wi-Fi/RADIO FREQUENCY CONVERTING DEVICE - A Wi-Fi/radio frequency (RF) converting device includes a Wi-Fi transceiver, a multiplexing converting module, and a RF transceiver. The Wi-Fi transceiver receives a Wi-Fi control signal from a control signal generator. The multiplexing converting module receives the Wi-Fi control signal from the Wi-Fi transceiver and converts the Wi-Fi control signal into a RF control signal. The RF transceiver receives the RF control signal from the multiplexing converting module and sends the RF control signal to a plurality of electric elements. An RF extension device may be provided to share the signal transmission between the electric elements and the Wi-Fi/RF converting device | 2015-03-12 |
20150071270 | METHOD AND SYSTEM FOR ACCESSING AN OCCUPIED WI-FI CHANNEL BY A CLIENT USING A NULLING SCHEME - A method and system for overriding Carrier-Sense-Multiple-Access/Collision-Avoidance (CSMA/CA) without harming the traffic that occupies the channel are provided. The system and method may include for example detecting at a communication node having a plurality of antennas, a preamble transmitted by a co-channel neighboring node operating in compliance with IEEE 802.11 standard within a clear channel assessment (CCA) range of the communication node; and setting uplink transmit weights of the antennas of the communication node, to isolate the communication node from the neighboring node after the neighboring node has transmitted the preamble, to allow the communication node to access the co-channel, by keeping a transmitted signal level of the communication node as received by the neighboring node, below the CCA signal level at one or more of the antennas of said neighboring node. The system may for example implement the method in software running on a baseband processor. | 2015-03-12 |
20150071271 | MODERATION OF NETWORK AND ACCESS POINT SELECTION IN AN IEEE 802.11 COMMUNICATION SYSTEM - A method for use in a front-end network communications device, arranged to operate as an access point, for establishing a data connection between a mobile communications terminal and one or more data communications networks comprises receiving, from the mobile communications terminal, a service provider request comprising a MAC address of the mobile communications terminal; sending, to a master server, request information pertaining to the service provider request; receiving, from the master server, a policy message comprising a visibility policy, said visibility policy containing rules for controlling the visibility of at least one of the one or more data communications networks; determining a subset of communications networks that should be visible to the mobile communications terminal based on said rules; and enforcing said visibility policy by allowing said mobile communications terminal to connect only to said subset of data communications networks. | 2015-03-12 |
20150071272 | MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (MU-MIMO) FEEDBACK PROTOCOL - In a wireless network having a plurality of devices configured to communicate using a beamforming technique, a method includes sending a trigger packet from a first device of the wireless network to a plurality of second devices of the wireless network. The trigger packet includes trigger data configured to cause the plurality of second devices to perform channel measurement based on the trigger data. The method also includes receiving feedback information from each of the plurality of second devices in response to the trigger packet. | 2015-03-12 |
20150071273 | EFFICIENT TRANSFER OF TCP TRAFFIC OVER WLAN - A method for communication includes receiving Transport Control Protocol (TCP) data packets from a first TCP endpoint, for forwarding over a Wireless Local-Area Network (WLAN) to a second TCP endpoint. The received TCP data packets are cached in a cache memory. The TCP data packets cached in the cache memory are forwarded over the WLAN to the second TCP endpoint, including retrying to forward one or more of the cached TCP data packets independently of the first TCP endpoint. | 2015-03-12 |
20150071274 | CABLE ASSEMBLY WITH INTEGRATED WIRELESS PROXIMITY SENSORS - In one embodiment, a cable assembly is provided that comprises a cable, one or more radio transceivers spaced along the length of the cable; and a first set of one or more integrated conductors within the cable to supplying supply DC power and ground to the one or more radio transceivers. | 2015-03-12 |
20150071275 | TECHNIQUES FOR REGION-BASED SCANNING OF DIFFERENT FREQUENCY BANDS FOR USE IN A WIRELESS LAN - A communication method implemented in a mobile device is provided. The communication method includes limiting a frequency band on which the mobile device performs a scanning operation to a first frequency band used for a wireless connection of the mobile device; determining whether it is necessary to scan a second frequency band during a subsequent scanning operation of the mobile device; and in response to determining that it is necessary to scan the second frequency band, allowing the subsequent scanning operation to be performed on a plurality of frequency bands including the first and second frequency bands. | 2015-03-12 |
20150071276 | System and Method for Performing Hybrid Automatic Repeat Request (HARQ) in a WLAN System - A method and device for decoding packets received via a wireless local area network. The method performed by the device including receiving a packet, the packet including a signal portion and a data portion, verifying the signal portion of the packet is valid, determining if the packet is destined for the device, determining if the packet is a retransmission, combining, when the packet is a retransmission, information from the data portion of the packet with stored information from a previously received packet having a data portion that was not successfully decoded and attempting to decode the packet based at least in part on the information and stored information. | 2015-03-12 |
20150071277 | Content Optimization Of A Physical Layer Preamble - Embodiments of the present invention provide for content optimization of a physical layer preamble. In one embodiment of the invention, a method for encapsulating a payload for transmission through a network is disclosed. The method comprises the step of programming a legacy physical layer length value in a legacy physical layer preamble. The legacy physical layer preamble is configured such that it can be received by any legacy stations that may be on the network, and such that a separate physical layer length value can be derived from the legacy physical layer preamble. Using such a system, content optimization of a physical layer preamble is provided. | 2015-03-12 |
20150071278 | CLUSTERING MANAGEMENT IN mmWAVE WIRELESS SYSTEMS - According to various embodiments, a method is disclosed that includes detecting if a first cluster capable PCP/AP is within range of a non-PCP/non-AP STA; and transmitting a message to a second cluster capable PCP/AP associated with the non-PCP/non-AP STA requesting that the second cluster capable PCP/AP start or continue the use of clustering in a basic service set (BSS) of the second cluster capable PCP/AP. | 2015-03-12 |
20150071279 | METHOD AND APPARATUS FOR ASSIGNING SLOT - A method and apparatus for assigning a slot, including: constructing a HELLO packet, the packet including slot request information of a local node and/or slot request information of a neighbor node of the local node; and transmitting the packet, so that a node receiving the packet authenticates a reservation slot requested by a sender; wherein the slot request information of the local node includes an address of the local node and of a receiving node of a data packet to be transmitted and an index of the reservation slot requested by the local node; and the slot request information of the neighbor node includes an address of the neighbor node, an address of a receiving node of a data packet to be transmitted, an index of a reservation slot requested by the neighbor node, and confirmation information of the reservation slot requested by the neighbor node. | 2015-03-12 |
20150071280 | Underwater transceiver device, underwater communication system and related communication method - The invention concerns an underwater transceiver device, communications system and method of communicating sensor data underwater. The transceiver device comprises a sensor unit or a sensor connection for an external sensor unit for providing a sensor value and a communication unit functionally connected to the sensor unit or connection and comprising means for wirelessly transmitting the sensor value to another underwater device as data packets according to a timing scheme. According to the invention, the communication unit further comprises means for wirelessly receiving data packets of other underwater devices, and means for adjusting the timing scheme based on data packets received so as to avoid simultaneous transmitting of underwater devices. The invention enables energy-efficient and robust communications between diving equipment. | 2015-03-12 |
20150071281 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION DEVICE, AND WIRELESS COMMUNICATION METHOD - In a wireless communication system, a wireless transmitter generates a TS packet that includes a PCR value based on a timer value for a time preceding an offset time from start time of a PCR time slot and transfers a wireless frame that includes the TS packet with the PCR value at start time of the PCR time slot. The wireless receiver receives the wireless frame that includes the TS packet with the PCR value at the PCR time slot, measures propagation time of the wireless frame between the start time of the PCR time slot and time when the wireless frame that includes the TS packet with the PCR value is received, obtains sum of the offset time and the propagation time as delay time of the PCR value, and adjusts its timer value based on the PCR value acquired from the wireless frame and the obtained delay time. | 2015-03-12 |
20150071282 | ARCHITECTURE AND METHOD FOR HYBRID CIRCUIT-SWITCHED AND PACKET-SWITCHED ROUTER - Techniques and mechanisms for performing circuit-switched routing and packet-switched routing for network communication. In an embodiment, a router evaluates control information of a packet received by the router, the evaluation to detect whether the packet includes data for a sideband communication. Based on the evaluation, the router performs a selection from among a plurality of modes of the router, the plurality of modes including a first mode to route the packet for packet-switched communication of sideband data in a network. The plurality of modes also includes a second mode to configure a circuit-switched channel according to the packet. In another embodiment, the router determines a direction for routing a packet in a hierarchical network, wherein the determining of the direction is based on a level of the router in a hierarchy of the hierarchical network. | 2015-03-12 |
20150071283 | HARDWARE IMPLEMENTED ETHERNET MULTIPLE TUPLE FILTER SYSTEM AND METHOD - A filter in a DOCSIS bridge performs IP Filtering of incoming Ethernet packets in hardware. The filter includes a parser circuit which, in hardware, parses each of the incoming Ethernet packets and then utilizes the parsed information in combination with a content-addressable memory (CAM) that stores filtering information, to filter and route the incoming Ethernet packets. Detailed statistical data may also be generated to provide information on the type of filtering being performed by the DOCSIS bridge. | 2015-03-12 |
20150071284 | APPARATUS FOR TRANSMITTING ENCODED VIDEO STREAM AND METHOD FOR TRANSMITTING THE SAME - Discussed is an apparatus for transmitting an encoded video stream, comprising: a slice generating unit that divides a frame, comprised in a video stream, into at least one or more slice; and a transmitting unit transmitting the slice in units of a packet within a slice deadline, which is a time limit required for transmission of the slice, the transmitting unit that preferentially transmits a header packet that contain a slice header information over other packets, and the slice header that comprises of information necessary for reconstructing the slice, wherein the transmitting unit comprises: a packet transmitter that retransmits the packet when the packet fails to be transmitted within the predetermined retry limit; and a header protector performing control for the header packet to be repeatedly transmitted within the slice deadline even when number of retransmissions of the header packet exceeds the predetermined retry limit. | 2015-03-12 |
20150071285 | DISTRIBUTED SERVICE CHAINING IN A NETWORK ENVIRONMENT - An example method for distributed service chaining in a network environment is provided and includes receiving a packet belonging to a service chain in a distributed virtual switch (DVS) network environment, wherein the packet includes a network service header (NSH) indicating a service path identifier identifying the service chain and a location of the packet on the service chain, evaluating a service forwarding table to determine a next service node based on the service path identifier and the location, with a plurality of different forwarding tables distributed across the DVS at a corresponding plurality of virtual Ethernet Modules (VEMs) associated with respective service nodes in the service chain, and forwarding the packet to the next service node, with substantially all services in the service chain provided sequentially to the packet in a single service loop on a service overlay. | 2015-03-12 |
20150071286 | SYSTEM AND METHOD FOR UTILIZATION OF A SEGMENTATION IDENTIFICATION TO SUPPORT TRANSMISSION OF DATA TO A DESTINATION NODE - A method is provided in one example and includes receiving, at a receiving node, a packet that comprises information indicative of an internet protocol address and a segmentation identification, selecting a virtual routing and forwarding table corresponding with the segmentation identification, identifying a destination node based, at least in part, on the internet protocol address and the virtual routing and forwarding table, and transmitting the packet to the destination node. | 2015-03-12 |
20150071287 | METHODS, SYSTEMS AND APPARATUS FOR THE INTERCONNECTION OF FIBRE CHANNEL OVER ETHERNET DEVICES USING A FIBRE CHANNEL OVER ETHERNET INTERCONNECTION APPARATUS CONTROLLER - Methods, apparatus and systems are provided for forwarding Fibre Channel Initialization Protocol (FIP) and Fibre Channel over Ethernet (FCoE) frames by a FCoE device interconnection apparatus (FIA) and a Fibre Channel over Ethernet device interconnection apparatus controller (FIAC). In one aspect of the invention, a command is sent from a FIAC to the FIA to set the frame processing apparatus to identify received FIP frames, which are forwarded with the original destination and source Ethernet Media Access Control (MAC) addresses. A command is sent from the FIAC to the FIA to identify received FCoE frames to replace the source and destination Ethernet MAC addresses. When a FCoE frame is received by the FIA, the source and destination Ethernet MAC addresses are replaced, such as where the destination Ethernet MAC address of the received matched FCoE frame is replaced by the MAC address assigned to the desired end port. The FCoE frame is forwarded to a destination FCoE device. | 2015-03-12 |
20150071288 | Inter Domain Link for Fibre Channel - A method includes establishing a communication link between a first Fibre Channel Forwarder (FCF) and a Fibre Channel (FC) fabric. The first FCF provides a first domain. The method includes establishing a communication link between a second FCF and the FC fabric. The second FCF provides a second domain. The method includes establishing a first intra-domain link between the first FCF and a first device. The first device including one of a Fibre channel over Ethernet Data Forwarder (FDF) and a Fibre Channel Data Forwarder (FCDF). The method includes establishing an inter domain link between the first device and the second domain. | 2015-03-12 |
20150071289 | SYSTEM AND METHOD FOR ADDRESS RESOLUTION - In an address resolution system in a centralized network control environment including a plurality of software defined network (SDN) switches, an address resolution protocol (ARP) controller checks whether an ARP table has a MAC address corresponding to the destination IP address of an ARP request packet when the ARP request packet is received from a source host. An SDN controller determines whether to broadcast the ARP request packet according to the existence of the MAC address corresponding to the destination IP address in the ARP table. | 2015-03-12 |
20150071290 | DATA ROUTING ACCELERATION - Systems, devices and methods for improving network performance are disclosed. In particular, in one embodiment, a method of processing data packets in an electronic network is provided. The method includes receiving data packets at a receive stack of an electronic network device and creating a first packet from at least a portion of each of the set of data packets. The first packet includes an indicator that the first packet is a first packet type. Additionally, the method includes passing the first packet to one of a bridge and IP layer of the receive stack. A first packet inhibitor at the one of the bridge and IP layer is bypassed upon recognizing the first packet as a first packet type. The first packet is routed to a transmit stack of the electronic network device from the one of the bridge and IP layer. | 2015-03-12 |
20150071291 | MESSAGE HANDLING IN AN IP MULTIMEDIA SUBSYSTEM - A method and apparatus for handling a Session Initiation Protocol communication in an IP Multimedia Subsystem (IMS) network. A Proxy Call Session Control Function receives a Session Initiation Protocol message sent from a trusted remote network. The P-CSCF adds to the message a further header, which identifies a Public User Identity of a trusted entity located in the remote network served by a Serving Call Session Control Function in the IMS network. The message is then sent to the S-CSCF. The S-CSCF, and any other node that the message is sent to, knows from the presence of the further header to use the Public User Identity of the trusted entity to determine the served user rather than the P-Asserted Identity contained in the SIP message. | 2015-03-12 |
20150071292 | METHOD AND SYSTEM FOR PROCESSING PACKETS IN A NETWORK DEVICE - Systems are presented for processing packets in a network switch. One network device includes a processor, an Ethernet switch, a PCIe switch, and a packet processor. The processor is for executing a controller program, and the Ethernet switch is for switching packets among a ports. Further, the PCIe switch is coupled to the processor and the Ethernet switch, and the packet processor, coupled to the Ethernet switch and the PCIe switch, is operable to modify an application header of an incoming packet and send the incoming packet to one of the ports. The controller program is operable to configure the Ethernet switch and the packet processor to define processing of packets. The controller program is operable to send a first configuration rule to the Ethernet switch, the first configuration rule defining that packets of a network flow requiring header modification be forwarded to the packet processor. | 2015-03-12 |
20150071293 | TWO TIER MULTIPLE SLIDING WINDOW MECHANISM FOR MULTIDESTINATION MEDIA APPLICATIONS - Some media applications use media that contains multiple types of media components in it and media sources with access to this media must send each type of media component to one or more media rendering destination devices. Furthermore there may be multiple destinations that can receive a particular type of media component and the media must be received at each destination without losses. This invention describes a two tier packet buffer structure at the media source with primary and virtual packet buffers that ensures minimal memory use at the media source and minimal network use. Furthermore the use of a sliding window with each virtual packet buffer associated with each destination, independently keeps control and track of destination state, ensuring the correct receipt of media data at each destination. | 2015-03-12 |
20150071294 | APPARATUS AND METHOD FOR DESIGNING A COMMUNICATION NETWORK PREVENTING OCCURRENCE OF MULTIPLE FAILURES - An apparatus generates plural communication-route candidates corresponding to a requested communication channel by combining first transmission-paths providing connections between particular nodes in a network and second transmission-paths providing connections between three or more nodes in the network, where the first transmission paths are accommodated in plural communication cables together with the second transmission paths. The apparatus holds a table indicating first and second association relationships, where the first association relationship associates the first transmission paths with communication cables that accommodate the first transmission paths and are provided at opposite ends of each of the first transmission-paths, and the second association relationship associates the second transmission paths with communication cables accommodating the second transmission paths. The apparatus determines, by referring to the table, from among the plural communication-route candidates, a communication-route candidate that uses a same communication cable multiple times, and excludes the determined communication-route candidate from the plural communication-route candidates. | 2015-03-12 |
20150071295 | ON-DEMAND MEDIUM TO LOW TRANSMISSION POWER CHANNEL SWITCHING IN COMPUTER NETWORKS - In a multiple interface, low power and lossy network comprising a plurality of nodes, a low transmission power and medium transmission power topology are defined for the network and a channel-hopping schedule is defined for the devices operating in each topology. A sender determines that data is capable of being transmitted via a link on the low transmission power topology. The sender determines the transmission parameters for the transmission of the data over the link on the low transmission power topology and determines a low transmission power channel for transmission of the data. The sender transmits the determined channel and the transmission parameters to the receiver. The sender transmits the data via the determined channel in the low transmission power topology. | 2015-03-12 |
20150071296 | DECOUPLING AUDIO-VIDEO (AV) TRAFFIC PROCESSING FROM NON-AV TRAFFIC PROCESSING - A device for decoupling audio-video (AV) traffic processing from non-AV traffic processing may include a first processor and a second processor. The first processor may be configured to establish a network connection with a client device, determine whether the network connection is associated with AV traffic, transfer the network connection to a second processor when the network connection is associated with AV traffic, and process non-AV traffic associated with the network connection when the network connection is not associated with AV traffic. The second processor may be configured to receive the network connection from the first processor and process the AV traffic associated with the network connection. | 2015-03-12 |
20150071297 | METHOD OF CONTROLLING A CODEC NEGOTIATION OF A GATEWAY, A COMPUTER PROGRAM PRODUCT FOR EXECUTING THE METHOD, AND A COMMUNICATION SYSTEM FOR CONTROLLING THE CODEC NEGOTIATION - A method of controlling a codec negotiation of a gateway ( | 2015-03-12 |
20150071298 | Hybrid Forwarding in a Virtual Switch - Forwarding techniques for a virtual switch are described. A type is identified of data packet received by an extensible virtual switch of a computing device, the extensible virtual switch configured to support communication between a first virtual machine and a second virtual machine or external device. Responsive to the identification, an identifier of the type is associated with the data packet. The data packet is passed through a plurality of extension modules of the extensible virtual switch. Forwarding for the data packet is calculated by at least one of the plurality of extension modules that correspond to the associated identifier. | 2015-03-12 |
20150071299 | METHODOLOGY TO INCREASE BUFFER CAPACITY OF AN ETHERNET SWITCH - A methodology to increase buffer capacity of an Ethernet switch uses an intelligent packet buffer at external ports of the Ethernet switch. Each intelligent packet buffer may include buffer logic and a buffered Ethernet port coupled to an internal Ethernet port of a switching element. The intelligent packet buffer may use a memory controller to access a random access memory using page mode access, and may write portions of a packet stream to a logical buffer in the random access memory that is dedicated to the internal Ethernet port. The intelligent packet buffer may forward the packet stream from the logical buffer to the internal Ethernet port. The logical buffer may represent a virtual output queue of the Ethernet switch associated with the internal Ethernet port. The intelligent packet buffer may be dimensioned with corresponding buffer logic and random access memory capacity to buffer one or more external ports. | 2015-03-12 |
20150071300 | SYSTEM AND METHOD FOR EFFICIENT UPSTREAM TRANSMISSION USING SUPPRESSION - A system and method suited for improved overall data transmission having a hardware-based transceiver configured for transmitting upstream data with suppressed data packets. In TCP sessions between devices, a server seeks an “acknowledgement” that the downstream data transmission has been received by a client. Some data packets sent upstream may contain only TCP acknowledgement data and therefore may be combined with other purely TCP acknowledgement data packets in order to reduce the impact of the TCP acknowledgement packets on the overall upstream data throughput. In addition, this results in increased TCP performance in the downstream transmission direction as well because the algorithm enables replacing earlier arriving ACK packets with later arriving ACK packets which allows the device to send all TCP ACK information known to the suppressor at the earliest possible time. | 2015-03-12 |
20150071301 | PRIVATE ETHERNET OVERLAY NETWORKS OVER A SHARED ETHERNET IN A VIRTUAL ENVIRONMENT - A system for private networking within a virtual infrastructure is presented. The system includes a virtual machine (VM) in a first host, the VM being associated with a first virtual network interface card (VNIC), a second VM in a second host, the second VM being associated with a second VNIC, the first and second VNICs being members of a fenced group of computers that have exclusive direct access to a private virtual network, wherein VNICs outside the fenced group do not have direct access to packets on the private virtual network, a filter in the first host that encapsulates a packet sent on the private virtual network from the first VNIC, the encapsulation adding to the packet a new header and a fence identifier for the fenced group, and a second filter in the second host that de-encapsulates the packet to extract the new header and the fence identifier. | 2015-03-12 |
20150071302 | SYSTEM AND METHOD FOR IMPROVED UPSTREAM TRANSMISSION - A system and method for improved upstream data transmission. In an embodiment, a cable modem includes a transceiver configured for transmitting data upstream once permission is granted. In between times when permission to transmit is granted, however, the cable modem is configured to prepare as much data as possible for immediate upstream transmission once that very permission is granted. Thus, prior to permission being granted, the cable modem assembles (pre-processes) the data into transmit frames such that the data frames may be stored in a local memory coupled to the transceiver in a “ready-to-go” format. In this manner, the entire amount of time/bandwidth allocated to the cable modem in response to its request for upstream data transmission may be dedicated to actually transmitting data upstream as opposed to consuming time and bandwidth processing the data into data frames after upstream data transmission has been granted. | 2015-03-12 |
20150071303 | COMMUNICATION DEVICE AND POWER SAVING METHOD THEREOF IN DATA TRANSMISSION SYSTEM - A communication device and a power saving method in a data transmission system are provided that can achieve the prevention of element deterioration occurring when a check signal is transmitted during sleep, as well as reductions of transmission noise and power consumption. The communication device, which is connected to another communication device through transmission/reception links corresponding to multiple channels, respectively, includes communication sections ( | 2015-03-12 |
20150071304 | METHOD AND APPARATUS FOR CONTROLLING DATA TRANSMISSION - A method includes determining at least one first station; and sending first indication information to the first station, where the first indication information is used for indicating at least one first backoff duration, so that the first station performs a data transmission operation by using the first backoff duration, and the first backoff duration used by the first station to perform a data transmission operation is less than a second backoff duration used by a second station to perform a data transmission operation, or the first backoff duration used by the first station to perform a data transmission operation is greater than the second backoff duration used by the second station to perform a data transmission operation. Shortening backoff durations of some stations can ensure that these stations send data first, and extending backoff durations of some stations can ensure that the other stations send data first. | 2015-03-12 |
20150071305 | NETWORK SYSTEM TIME DOMAIN RE-STAMPING - One embodiment of the invention includes a coax media converter (CMC) system communicatively coupled to at least one modem in a network system. The system includes a frequency reference configured to generate a clock signal in a local time domain. The system also includes a scheduling processor configured to extract a bandwidth allocation message from a data stream and to re-stamp each of at least one timestamp in the bandwidth allocation message in the local time domain based on the clock signal to generate a corresponding updated bandwidth allocation message comprising a respective at least one re-stamped timestamp. The system further includes a downstream physical interface configured to transmit the updated bandwidth allocation message to the at least one modem to schedule upstream burst transmissions from the respective at least modem based on the at least one re-stamped timestamp. | 2015-03-12 |
20150071306 | TIME AND FREQUENCY DIVERSITY MODULATION SYSTEM AND METHOD - A method of encoding a set of L bits for transmission on a transmission band through a transmission medium is provided, wherein L is a positive integer that is greater than 1. The method includes: mapping, via a mapping component, the L bits into M symbols; dividing, via a first dividing component, the transmission band into sub-bands; allocating, via an allocating component, the M symbols to individual sub-bands, respectively, for transmission at a first time; and allocating, via the allocating component, the M symbols to different individual sub-bands, respectively, for transmission at a second time. | 2015-03-12 |
20150071307 | COMMUNICATION INTERFACE AND METHOD FOR ROBUST HEADER COMPRESSION OF DATA FLOWS - A communication interface and method for efficient robust header compression (RoHC). One embodiment of the communication interface includes: (1) a data flow associated with a context ID (CID) and a data flow status indicator, and having packets, and (2) a robust header compression (RoHC) compressor configured to employ the CID to compress headers of the packets and to mark the CID as reusable by another data flow if the data flow status indicator indicates the data flow is terminated. | 2015-03-12 |
20150071308 | System And Method For Monitoring Network Synchronization - Systems and methods are disclosed for monitoring network synchronization. The disclosed embodiments utilize time window snapshots to capture network time information and compare the captured time information against time reference information to determine network time errors. These network time errors can then be analyzed with respect to selected operating parameters and tolerances to determine network synchronization errors and to generate alarms. Certain embodiments are configured to capture time information data and to analyze this captured data locally to determine time error data. Certain other embodiments are configured to utilize multiple capture devices and to transmit time error data to a central snapshot synchronization monitor. The central snapshot synchronization monitor can also communicate control information to the capture devices to control the snapshot time windows. In addition, synchronization errors can be used as trigger events to cause additional capture of time information by other capture devices. | 2015-03-12 |
20150071309 | METHOD AND DEVICES FOR FREQUENCY DISTRIBUTION - This invention relates to methods and devices for frequency distribution based on, for example, the IEEE 1588 Precision Time Protocol (PTP). Packet delay variation (PDV) is a direct contributor to the noise in the recovered clock and various techniques have been proposed to mitigate its effects. Embodiments of the invention provide a mechanism to directly measure and remove PDV effects in the clock recovery mechanism at a slave clock. One particular embodiment provides a clock recovery mechanism including a phase-locked loop (PLL) with a PDV compensation feature built-in. An aim of the invention is to enable a slave clock to recover the master clock to a higher quality as if the communication path between master and slave is free of PDV. This technique may allow a packet network to provide clock synchronization services to the same level as time division multiplexing (TDM) networks and Global Positioning System (GPS). | 2015-03-12 |
20150071310 | RADIO MEASUREMENT METHOD AND RADIO MEASUREMENT APPARATUS USING MULTI-ANTENNA CHANNEL MULTIPLEX - A radio measurement apparatus comprising: an array antennal selection unit selecting array antennas corresponding to received signals; a reference path selection unit selecting a reference array antenna; a signal processing unit selecting a reference antenna channel through analysis of signal characteristics measured through two reception channels; a sequential channel multiplex unit determining sequentially inputting received signals of remaining array antennas to output the sequentially input signals to a receiver; and a correction signal input unit compensating amplitude and phase characteristics of the respective reception channels. | 2015-03-12 |
20150071311 | REFORMATING A PLURALITY OF SIGNALS TO GENERATE A COMBINED SIGNAL COMPRISING A HIGHER DATA RATE THAN A DATA RATE ASSOCIATED WITH THE PLURALITY OF SIGNALS - Various aspects provide for aggregating a plurality of signals to generate a combined signal. An aggregation component is configured for reformatting a plurality of first signals and combining the plurality of first signals to generate a combined signal that comprises a higher data rate than a data rate associated with the plurality of first signals. A transmitter component is configured for receiving the combined signal and generating one or more data streams based on the combined signal. In an aspect, the aggregation component is additionally configured for reformatting and/or combining the plurality of first signals and at least one second signal to generate the combined signal. In another aspect, a receiver component is configured for generating a pseudo signal at a data rate of the combined signal. In yet another aspect, a de-aggregation component is configured for recovering the plurality of first signals and/or the at least one second signal from the pseudo signal. | 2015-03-12 |
20150071312 | SYSTEM AND METHOD USING CASCADED SINGLE PARTITY CHECK CODING - A system and method including a parity bit encoder for encoding each n−3 bits of data to be transmitted with three parity check bits to produce blocks of n bits (n−3 information bits plus three parity bits associated with the n information bits). Each of the blocks of n bits are Gray mapped to three QAM symbols that are modulated onto an optical wavelength and transmitted to a receiver. A maximum a posteriori (MAP) decoder is used at the receiver to correct for cycle slip. | 2015-03-12 |
20150071313 | LASER WAVELENGTH CONVERSION APPARATUS - Disclosed is a laser wavelength conversion apparatus. The apparatus includes a focusing lens formed of birefringent material and configured to have same refractive index for an infrared laser beam and a green laser beam having different polarization direction and focus the infrared laser beam and the green laser beam without chromatic aberration, and a sum frequency generator configured to combine the infrared laser beam and the green laser beams focused by the focusing lens to generate an ultraviolet laser beam. The apparatus of the present invention can solve a problem due to chromatic aberration of the focusing lens, thereby improving wavelength conversion efficiency and beam quality. | 2015-03-12 |
20150071314 | Obtaining Narrow Line-width, Full C-band Tunability Mirror for Monolithic or Hybrid Integrated Lasers - An apparatus comprising an optical medium, a power splitter coupled to the optical medium, a first delay line coupled to the power splitter such that the power splitter is positioned between the first delay line and the optical medium, a first comb reflector coupled to the first delay line such that the first delay line is positioned between the first comb reflector and the power splitter, and a second comb reflector coupled to the power splitter but not the first comb reflector and not the first delay line. A method comprising receiving an optical signal, splitting the optical signal into a first split optical signal and a second split optical signal, delaying the first split optical signal, tuning the delayed first split optical signal, tuning the second split optical signal, and delaying the tuned second split optical signal. | 2015-03-12 |
20150071315 | Precise Broadband Frequency Modulated Laser - A method and apparatus are described including a laser with a plurality of internal or external actuators for affecting an optical frequency of light output by the laser, wherein the plurality of actuators have a corresponding plurality of different frequency response bands for changing optical properties of the laser and a corresponding plurality of actuation ranges of optical frequencies affected. Also included is an optical detector, and a plurality of optical paths configured to direct light output by the laser onto the detector. A laser controller is configured to provide a plurality of inputs to the plurality of actuators based on a detector signal output from the optical detector and the corresponding frequency response bands and actuation ranges. | 2015-03-12 |
20150071316 | Low Noise, High Stability, Deep Ultra-Violet, Continuous Wave Laser - A laser for generating deep ultra-violet (DUV) continuous wave (CW) light includes a second-harmonic generator and a fourth-harmonic generator. The fourth-harmonic generator includes a plurality of mirrors as well as first and second non-linear optical (NLO) crystals. The first NLO crystal generates the light having the fourth harmonic wavelength, and is placed in operative relation to the plurality of mirrors. The second NLO crystal is placed in operative relation to the first NLO crystal such that the light having the second harmonic wavelength passes through both the first and the second NLO crystals. Notably, the second optical axes of the second NLO crystal are rotated about a direction of propagation of the light within the second NLO crystal approximately 90 degrees relative to the first optical axes of the first NLO crystal. The second NLO crystal provides no wavelength conversion. | 2015-03-12 |
20150071317 | PUMP ENERGY WAVELENGTH STABILIZATION - In a method of stabilizing pump energy, a gain medium is provided having an absorption coefficient that varies with wavelength. An absorption coefficient curve of the absorption coefficient or a range of wavelengths comprises peaks and valleys. Pump energy is generated at an operating wavelength within one of the valleys, at which the absorption coefficient is approximately at a minimum. The pump energy is transmitted through the gain medium. A portion of the pump energy is absorbed with the gain medium and laser light is emitted from the gain medium responsive to the absorbed pump energy. The non-absorbed pump energy (feedback pump energy) is fed back to the pump module. The operating wavelength of the pump energy is stabilized using the feedback pump energy. | 2015-03-12 |
20150071318 | DRIVING CIRCUIT OF A LASER DIODE AND DRIVING METHOD OF A LASER DIODE - A driving method of a laser diode includes setting a bias current, a modulation current, a first target corresponding to a predetermined average power, and a second target corresponding to a predetermined average modulation power; executing a first adjusting current step group; generating a temporary modulation current according to the modulation current; executing a second adjusting current step group; and executing the first adjusting current step group again. | 2015-03-12 |
20150071319 | EMISSION SOURCE AND METHOD OF FORMING THE SAME - In various embodiments, an emission source may be provided. The emission source may also include a gain medium including a halide semiconductor material. The emission source may further include a pump source configured to provide energy to the gain medium. | 2015-03-12 |
20150071320 | VCSEL MODULE AND MANUFACTURE THEREOF - The invention describes a method of manufacturing a VCSEL module ( | 2015-03-12 |
20150071321 | HIGH ENERGY SEMICONDUCTOR LASER - A high energy semiconductor laser capable of high optical efficiency includes a master oscillator coupled to a plurality of slave oscillators, each producing a laser beam that is substantially at the same wavelength as the output beam from the master oscillator. The outputs of the slave oscillators are then coherently combined to a single monochromatic beam having an optical power which is substantially greater than that of beam output from the master oscillator. The slave oscillators can be configured as ring resonators. A suitable ring oscillator can be built by arranging one or more semiconductor diode laser gain media, two or more reflecting mirrors, and at least one semireflective mirror in a ring configuration. A suitable ring oscillator can also be built by machining a solid block to include one or more semiconductor diode laser high gain regions. | 2015-03-12 |
20150071322 | LASER WITH NON-LINEAR OPTICAL LOOP MIRROR - In a laser ( | 2015-03-12 |
20150071323 | APPARATUS FOR IDENTIFYING MORPHOLOGY - An apparatus for identifying morphology comprises a substrate, a driving circuit, a readout circuit and an identifying circuit. The substrate comprises temperature sensors each comprising a sensing transistor. The driving circuit selects at least one of the transistors as a target sensing transistor, and outputs a driving signal to the target sensing transistor to heat the target sensing transistor in a heating period. The target sensing transistor senses a temperature change to generate a sensing signal in a sensing period after the heating period. The readout circuit reads the sensing signal, and the identifying circuit identifies the morphology according to the sensing signal. | 2015-03-12 |
20150071324 | Structural Health Monitoring System for a Material and Production Method - A structural health monitoring system includes a signal transmission element and a sensor unit. The sensor unit is designed to feed a first signal into the signal transmission element and to read out a second signal from the signal transmission element. The signal transmission element has carbon nanotubes. | 2015-03-12 |
20150071325 | CONTACT TYPE INTERNAL THERMOMETER - Provided is a contact type internal thermometer including: a measurement surface that is brought into contact with a surface to be measured of a measurement object; a first temperature sensor stack including a first measurement surface side temperature sensor arranged on a measurement surface side, and a first back surface side temperature sensor arranged on a back surface side; a second temperature sensor stack including a second measurement surface side temperature sensor arranged on a measurement surface side, and a second back surface side temperature sensor arranged on a back surface side; and a controller configured to calculate an internal temperature of the measurement object based on measurement results of the respective temperature sensors, in which the first back surface side temperature sensor and the second back surface side temperature sensor have different surface areas. | 2015-03-12 |
20150071326 | TEMPERATURE SENSOR AND METHOD FOR PRODUCING SAME - Provided are a temperature sensor that is hard to increase resistance in the electrode structure with respect to a Ti—Al—N thermistor material layer even under a high-temperature environment, and has a high reliability with a high heat resistance as well as a method for producing the same. The temperature sensor includes an insulation substrate; a thin film thermistor portion formed on the insulation substrate; and a pair of pattern electrodes formed on the insulation substrate with a pair of opposed electrode portions being arranged so as to be opposed to each other on the thin film thermistor portion, wherein the thin film thermistor portion is made of a Ti—Al—N thermistor material, and the pair of pattern electrodes has a Ti—N bonding layer formed on the thin film thermistor portion and an electrode layer made of a noble metal formed on the bonding layer. | 2015-03-12 |
20150071327 | GAS COUPLED PROBE FOR SUBSTRATE TEMPERATURE MEASUREMENT - A low pressure temperature sensor for measuring the temperature of a substrate during semiconductor device manufacturing is generally described. Various embodiments describe a gas chamber having an opening disposed within a dielectric plate of a platen with a seal disposed around the opening in the gas chamber such that the opening in the gas chamber may be sealed against the substrate. Furthermore, a temperature sensor and a spring are disposed in the gas chamber, the spring biased to place the temperature sensor in contact with the substrate. Additionally, a gas source configured to pressurize the gas chamber with a low pressure gas in order to increase thermal conductivity between the substrate and the temperature sensor is provided. | 2015-03-12 |
20150071328 | PEAK DETECTION METHOD USING BLIND SOURCE SEPARATION - The peak detection method using blind source separation extracts true peaks from noisy peaks in a more robust way that does not require any a priori information. Information regarding true peak location is obtained by thresholding the output of a wavelet transform. The value of the threshold is dependent on noise variance. While noise variance is normally unknown, the present method implements a blind source separation technique to calculate the noise variance. The blind source separation technique does not require information of the incoming signal or the channel noise, and hence is suitable for CR (cognitive radio) peak detection. | 2015-03-12 |
20150071329 | METHOD AND APPARATUS FOR LATE ENTRY IN ASYNCHRONOUS FREQUENCY HOPPING SYSTEMS USING RANDOM PERMUTATION SEQUENCES - A wireless method and apparatus for late entry in frequency hopping systems that, during call setup, computes a random permutation sequence through a hop set of frequencies, chooses preamble frequencies to omit data thereon in lieu of preamble data, and swaps frequencies in the random permutation sequence such that synchronization frequencies lie next to the preamble frequencies with an expected delay such that late entrants can join. The wireless method and apparatus meets the FCC requirement of maintaining a pseudorandom hopping pattern and equal distribution of all frequencies in a hop set while guaranteeing late entry and having no effect on battery performance of radios. | 2015-03-12 |
20150071330 | Spread Spectrum Non-linear Junction Detector - A digital spread spectrum non-linear junction detector (NLJD) utilizes the 2.4 GHz transmission band to increase sensitivity to detect smaller electronics. The receiver chain of the NLJD pre-distorts the transmission signal and correlates the result with the response signal to differentiate between target responses and ambient interference signals. A touch screen display displays a signal strength received by the NLJDs receiver at a second harmonic frequency of the 2.4 GHz transmit signal and a signal strength received by the receiver at a third harmonic frequency of the transmit signal. A frequency swept response received by the receiver in response to the transmitted 2.4 GHz transmit signal is graphically displayed on the touch screen. The use of the 2.4 GHz band, touch screen, correlation based target differentiation and frequency swept response display improve the sensitivity and usability of the NLJD and increase the likelihood of it successfully performing its tasks. | 2015-03-12 |
20150071331 | TRANSMISSION DEVICE AND BANDWIDTH ADJUSTMENT METHOD - A transmitting apparatus is disclosed that adjusts an occupied bandwidth for each transmission rate, and thus can prevent deterioration of an S/N ratio while preventing a situation in which frequency components are cut and cannot be demodulated, without increasing the manufacturing cost. The transmitting apparatus is capable of performing communication at multiple different transmission rates. A modulation section modulates transmission data to generate a modulated signal and adjusts an occupied bandwidth in a passband of a channel selection filter for each of the transmission rates. An occupied bandwidth control section outputs to the modulation section bandwidth setting information that causes a bandwidth to approximate to the bandwidth of a passband of a channel selection filter based on the inputted transmission rate setting information. An RF transmitting section transmits the modulated signal obtained by adjusting the occupied bandwidth via an antenna. | 2015-03-12 |
20150071332 | METHOD AND APPARATUS FOR CORRELATING SIGNALS RECEIVED FROM A NAVIGATION SATELLITE SYSTEM - A plurality of samples of a signal are stored in a buffer, the signal corresponding to a navigation system. A plurality of starting locations in the buffer are determined, the plurality of starting locations corresponding to a plurality of correlations to be calculated. A plurality of correlations are calculated using i) a plurality of local replica signals, and ii) data read from the buffer using the plurality of starting locations, the local replica signals corresponding to pseudo random number (PRN) codes utilized by transmitting devices in the navigation system. The plurality of correlations are utilized to one or more of i) detect PRN codes in the signal, ii) detect one or more phase shifts associated with PRN codes, or iii) detect one or more frequency shifts associated with PRN codes. | 2015-03-12 |
20150071333 | FILTERING HIGH SPEED SIGNALS - A method for filtering a data signal includes transmitting the data signal from a transmitter to a receiver across a conductor disposed in an interposer, which interconnects the receiver and the transmitter. The data signal is low-passed with a filter, which includes a passive resistive element disposed within the interposer and coupled in series electrically with a passive inductive element. In relation thereto, the interposer is disposed in a position within the interposer, or upon a surface thereof. The filter is coupled to the conductor in a shunt configuration with respect to ground. | 2015-03-12 |
20150071334 | FAST DETECTION/MITIGATION AND RECOVERY FOR SEVERE EMI CONDITIONS IN AUTOMOTIVE AREA NETWORKS - A vehicle communication network device includes a transceiver configured to communicatively couple with a remote transceiver of another vehicle communication network device via a wired media and processing circuitry coupled to the transceiver. | 2015-03-12 |
20150071335 | SYSTEMS AND METHODS FOR COMPENSATING ANTENNA GAIN IMBALANCE - This disclosure involves methods and systems for compensating for imbalanced transmit antenna gains. A transmit controller independently samples the received signal in each chain of a transceiver selectively adjusts the transmit power at each antenna to minimize any indicated imbalance to improve performance at the node receiving the transmission. | 2015-03-12 |
20150071336 | SYSTEM FOR DIAGNOSING AND OPTIMIZING VECTORED DSL LINES - In accordance with embodiments disclosed herein, there are provided methods, systems, mechanisms, techniques, and apparatuses for diagnosing and optimizing vectored DSL lines. For example, in one embodiment, such a system includes an interface to a first subset of a plurality of digital communication lines allocated to a vectored group and to a second subset of the plurality of digital communication lines which operate external to the vectored group; a Dynamic Spectral Management server (DSM server) to analyze the vectored group by performing the following operations for each of the plurality of digital communication lines in the vectored group: measuring a mitigated noise level for the digital communication line with crosstalk cancellation active, measuring a non-mitigated noise level for the digital communication line with crosstalk cancellation inactive, and comparing the mitigated noise level measured on the digital communication line with the non-mitigated noise level measured on the digital communication line. In such an embodiment, the DSM server of the system further issues optimization instructions based on the analysis. For example, by issuing optimization instructions for the vectored group, for lines external to the vectored group, or for both. | 2015-03-12 |
20150071337 | METHOD AND DEVICE FOR DEMODULATING DATA - Embodiments of the present invention provide a method and device for demodulating data. The method includes: determining a number of reliable bits of each path of data in M paths of data and a modulation manner used to demodulate the reliable bits of each path of data, where M is a positive integer; demodulating the reliable bits of each path of data according to the modulation manner used to demodulate the reliable bits of each path of data; and demodulating residual bits in each path of data except the reliable bits according to a maximal likelihood ML algorithm. Compared with the prior art, it is unnecessary to demodulate all bits of each path of data according to the ML algorithm, thereby lowering the complexity of demodulation by using the ML algorithm. | 2015-03-12 |
20150071338 | SWITCHED-MODE HIGH-LINEARITY TRANSMITTER USING PULSE WIDTH MODULATION - A QAM transmitter is disclosed that may reduce the frequency of local clock signals and/or reduce the switching frequency of driver circuits when generating a QAM output signal for transmission. The QAM transmitter may generate a number of PWM signals indicative of in-phase (I) and quadrature (Q) signal components, and then use one or more selected even-order harmonics of the PWM signals to generate the QAM output signal. Odd-order harmonics of the PWM signals may be suppressed by selectively combining the PWM signals, and any remaining unwanted even-order harmonics may be suppressed using filters. | 2015-03-12 |
20150071339 | PERFORMING VIDEO ENCODING MODE DECISION BASED ON MOTION ACTIVITY - A method and apparatus are described for performing video encoding mode decisions. A down-scaled frame is received that includes a macroblock corresponding to a first subset of macroblocks of a first area in a full-scale frame. A first average motion vector is calculated for the first subset of macroblocks, and a second average motion vector is calculated for a second subset of macroblocks of a second area surrounding the first subset of macroblocks. A comparison of a threshold to a distance measure between absolute values of the first and second average motion vectors is performed. A prediction mode for the macroblock in the down-scaled frame is determined based on the comparison to generate predicted blocks. | 2015-03-12 |
20150071340 | SAMPLE ADAPTIVE FILTERING WITH OFFSETS - A method, a filtering control device, a computer program and a computer program product for processing a first picture in a sample adaptive filtering procedure are disclosed. The first picture is reconstructed from video data. The filtering control device obtains an offset magnitude from the video data. The offset magnitude indicates a magnitude of a sample adaptive offset to be applied in the sample adaptive filtering procedure. The filtering control device obtains an offset sign from the video data. The offset sign indicates a sign of the sample adaptive offset. The filtering control device determines the sample adaptive offset based on the offset magnitude and the offset sign. Moreover, the filtering control device processes, in the sample adaptive filtering procedure, at least a portion of the first picture while applying the sample adaptive offset. | 2015-03-12 |
20150071341 | ARRANGEMENTS AND METHODS THEREOF FOR PROCESSING VIDEO - A method performed by a video encoder for encoding a current picture belonging to a temporal level identified by a temporal_id. The method includes determining a Reference Picture Set (RPS) for the current picture indicating reference pictures that are kept in a decoded picture buffer (DPB) when decoding the current picture, and when the current picture is a temporal switching point. The method further comprises operating to ensure that the RPS of the current picture includes no picture having a temporal_id greater than or equal to the temporal_id of the current picture. | 2015-03-12 |
20150071342 | IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, IMAGE CODING APPARATUS, PROGRAM, AND INTEGRATED CIRCUIT - An image decoding method includes: restoring a selected prediction mode used in prediction at a time of coding; and decoding a current block included in coded image data to generate a decoded block, according to the prediction based on the selected prediction mode. The restoring includes: determining a first estimated prediction mode; determining a second estimated prediction mode different from the first estimated prediction mode; and restoring the selected prediction mode based on the mode information, the first estimated prediction mode, and the second estimated prediction mode. | 2015-03-12 |
20150071343 | METHODS AND APPARATUSES INCLUDING AN ENCODING SYSTEM WITH TEMPORALLY ADAPTIVE QUANTIZATION - Examples methods and apparatuses including an encoding system with temporally adaptive quantization are described herein. An example apparatus may include an encoding system configured to receive a coding unit of a video signal. The coding unit may include a plurality of sub-coding units. The encoding system may be further configured to determine spatial complexity statistics and motion estimation statistics associated with a sub-coding unit of the plurality of sub-coding units. The encoding system may be further configured to modify a quantization parameter associated with the coding unit based on the spatial complexity statistics and the motion estimation statistics, and to encode the sub-coding unit using the modified quantization parameter. | 2015-03-12 |