10th week of 2011 patent applcation highlights part 24 |
Patent application number | Title | Published |
20110058499 | METHOD FOR INFERRING PHYSICAL NETWORK TOPOLOGY FROM END-TO-END MEASUREMENT - A method for inferring end-to-end network topology and to accurately determine a layer-3 routing tree between one sender and a set of receivers in the presence of anonymous routers in a network. | 2011-03-10 |
20110058500 | WIRELESS COMMUNICATION DEVICE AND COMPUTER PROGRAM - A wireless communication device is provided. The device is connectable to a first wireless network including an access point and a second wireless network including a terminal having an access point function. The device includes a setting section which stores setup data in a volatile storage area, a communication section which performs wireless communication using the setup data stored in the volatile storage area, and a determination section which determines which wireless networks the device is to be connected to. If the device is to be connected to the first wireless network, the setting section stores first setup data from the access point into the volatile storage area and a non-volatile storage area. If the device is to be connected to the second wireless network, the setting section stores second setup data from the terminal into the volatile storage area without storing it into the non-volatile storage area. | 2011-03-10 |
20110058501 | NODE APPARATUS AND ROUTE CALCULATION METHOD - A node apparatus in a communication network, includes: a processing unit which, in the node apparatus, performs adding and dropping of a frame signal onto the communication network; and a storage unit which stores topology information having link information that specifies each link existing in the communication network, wherein information that specifies the processing unit provided in the node apparatus is included in the topology information as the link information concerning a link connected to the node apparatus. | 2011-03-10 |
20110058502 | METHOD AND SYSTEM FOR MANAGING LINE TOPOLOGY - A method and system for managing a line topology is provided by the embodiments of the disclosure. The method for managing a line topology includes obtaining an actual transfer function of the line according to the actual transfer function of the line and a transfer function of the bridge tap model, estimating a diameter and length of the bridge tap of the line and a diameter and length of the trunk line of the line according to the estimated diameter and length of the bridge tap and the diameter and length of the trunk line, obtaining a transfer function of the line model that includes the location parameter of the bridge tap by comparing the error between the actual transfer function and the transfer function of the line model which includes the location parameter of the bridge tap, estimating the position of the bridge tap according to the estimated diameter and length of the trunk line and the diameter and length of the bridge tap and the location of the bridge tap, and generating a topology of the line. By applying the embodiment of the disclosure to maintain and manage the line topology, the location of the bridge tap can be estimated effectively, and the line topology can be obtained. | 2011-03-10 |
20110058503 | RADIO COMMUNICATION SYSTEM, BASE STATION, INTER-BASE STATION SYNCHRONIZATION METHOD, AND PROGRAM - A radio communication system includes a terminal and base stations that transmit subframes to and receive subframes from said terminal by means of OFDMA/TDD. The base stations include a first base station and a second base station that is adjacent to the first base station and that establishes frame synchronization with the first base station. The second base station: receives a specific uplink signal contained in an uplink subframe that is transmitted to the first base station from the terminal that is located at the cell boundary of the first base station and the second base station; based on the timing of the reception of the specific uplink signal, estimates the timing of the transmission of the header of uplink subframes transmitted from the terminal; and based on the timing of the transmission of the header of the uplink subframes that was estimated, controls the timing of the transmission of downlink subframes that are transmitted to the terminal. | 2011-03-10 |
20110058504 | SCHEDULING METHOD, MS APPARATUS USING THE SCHEDULING METHOD, DATA TRANSMISSION METHOD, AND BS APPARATUS USING THE DATA TRANSMISSION METHOD IN WIRELESS COMMUNICATION SYSTEM - In the MS apparatus for performing scheduling, a reception module receives any number information through a specific downlink channel in a first time unit from each of neighbor BSs. A scheduling module determines, among the neighbor BSs, a BS which is to transmit and receive data using a downlink data transmission region and an uplink data reception region, respectively, in a second time unit according to a previously set rule based on the number information. A transmission module transmits a signal, indicating that data transmission and reception using the downlink transmission region and uplink data reception region, respectively, in the second time unit are not possible, to the other neighbor BSs excluding the determined BS among the neighbor BSs. | 2011-03-10 |
20110058505 | Method And Device For Configuring Uplink Sounding Reference Signal - The present invention provides a method for configuring a Sounding Reference Signal (SRS). The method includes: determining, by a base station, an SRS periodicity available for a cell, and determining at least one SRS configuration position available in a sub-frame for the cell based on the SRS periodicity determined; and jointly coding, by the base station, the SRS periodicity and the at least one SRS configuration position, and transmitting a result of the joint coding to all User Equipments (UE) in the cell through broadcast signaling. The present invention also provides an apparatus for configuring an SRS. The present invention implements configuration of SRS transmission and can avoid conflict between SRS and uplink control information. | 2011-03-10 |
20110058506 | DEVICE AND METHOD FOR TRANSMITTING CHANNEL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - This invention relates to a device and a method for transmitting channel information in a wireless communication system. The disclosed device and method are characterized by: estimating channels by dividing the channel matrix elements for a complex channel into a real number part and an imaginary number part; quantizing each channel which is estimated through the division into the real and imaginary number parts based on a preset boundary value; generating the channel information corresponding to the quantization value for the real and imaginary number parts of the channel matrix elements; and transmitting the generated channel information to a transmitter. | 2011-03-10 |
20110058507 | WIRELESS COMMUNICATION SYSTEM, BASE STATION, CHANNEL ALLOCATION METHOD, AND PROGRAM - A wireless communication system according to the present invention includes a terminal and a base station for forming a plurality of sectors and receiving an uplink subframe from said terminal positioned in any of said plurality of sectors, according to an OFDMA/TDD scheme. Here, in said uplink subframe, said base station allocates a predetermined subchannel among subchannels usable by said base station to two predetermined sectors among said plurality of sectors in said uplink subframe, according to time division. | 2011-03-10 |
20110058508 | COMMUNICATION PLATFORM AND METHOD FOR PACKET COMMUNICATION BETWEEN A SERVICE PROVIDER AND A RADIO COMMUNICAITON DEVICE - The present invention relates to a communication platform for packet communication between at least one service provider in a first network and a radio communication device in a second network, the second network comprises a first network node provided to, at least partly, handle communication between the radio communication device and a gateway located in the second network. The gateway is provided to handle communication between the second network and the communication platform, and the communication platform comprises an application programming interface provided to handle two-way communication between the service provider and the radio communication device. | 2011-03-10 |
20110058509 | Method and device for updating plug-in of multimedia broadcast conditional access - A method and device for updating a multimedia broadcast conditional access plug-in, wherein the sending steps of the front end include: a CA plug-in file is divided into file blocks and file pieces in turn, and the file pieces are encapsulated into service data packets and data units in turn; a frame header is encapsulated in a multiplexing frame after the value of a “plug-in update identification” field configured in the multiplexing frame header is set to be valid, and the data unit is encapsulated in a data segment of the multiplexing sub-frame; and the encapsulated multiplexing frame is modulated to an electromagnetic wave of a physical channel sent to the air. The receiving steps of the terminal include: the multiplexing frame obtained by receiving and tuning is demultiplexed to obtain the “plug-in update identification” field in the frame header; when the value of the field is determined to be valid, the data unit in the data segment of the multiplexing sub-frame is obtained by demultiplexing; and the data units is unpacked into service data packets, file pieces and file blocks in turn, and the file blocks are assembled into a complete CA plug-in file which is downloaded to a CA database. | 2011-03-10 |
20110058510 | Power Management Of A Radio Data Transceiver - Methods and apparatuses for operating a wireless mobile station configured to communicate with a wireless access point are described. A sleep state may be maintained in which a radio frequency (RF) radio in the wireless mobile station is in a low power state. The wireless station may use a plurality of sleep states, each with a different sleep timer period based upon recent network activity. In one embodiment, a device may have two sleep states with two sleep timers, and in another embodiment a device may have three sleep timers for three sleep states. The first sleep time may be started for a first sleep state and to determine when to awake the device to determine whether there is any network activity. The device then determines whether a first period of network inactivity has occurred and, if so, it starts a second sleep timer for a second sleep state in response to determining that the first period of network inactivity has occurred. The method can further include determining whether a second period of network inactivity has occurred and, in response to determining that a second period of network inactivity has occurred, the device starts a third sleep timer for a third sleep state | 2011-03-10 |
20110058511 | METHOD FOR TRANSMITTING DATA OF MULTICAST BROADCAST SERVICE USING SUPERFRAME HEADER IN MOBILE WIRELESS CONNECTION SYSTEM - There is provided a method of transmitting multicast broadcast service (MBS) data using a superframe including a plurality of subframes in a mobile wireless connection system, the method including transmitting MBS MAP indication information indicating the first at least one first resource unit of an MBS region in the beginning of an MBS scheduling interval (MSI) and MBS control information including subframe offset information; transmitting an MBS MAP through the first resource unit; and transmitting an MBS burst indicated by the MBS MAP, wherein the subframe offset information including an index of the subframe at a point where the MBS burst is ended. | 2011-03-10 |
20110058512 | METHOD OF TRANSMITTING MULTICAST AND BROADCAST SERVICE DATA - A resource allocation method for a Multicast and Broadcast Service (MBS) and a method for transmitting MBS data in a wireless access system are disclosed. The MBS transmission method for a multicast broadcast single frequency network (MBSFN) zone includes, constructing a resource zone by sequentially allocating predetermined symbol areas preferentially on a frequency axis, mapping predetermined MBSs provided from the MBSFN zone to the predetermined symbol areas, and transmitting a first MBS among the predetermined MBSs to mobile stations located at an edge of the MBSFN zone. The first MBS is equal to a second MBS among MBSs provided from a neighbor MBSFN zone. The first MBS and the second MBS are transmitted to the same time zone according to a time division multiplexing (TDM) method. | 2011-03-10 |
20110058513 | Synchronization method of common control message among network elements - The present invention discloses a synchronization method of common control messages among network elements. The method includes that the central network element instructs the distributed network elements to synchronously update the common control messages of the respective specific cells of the distributed network elements. By using the present invention, the synchronous update and synchronous transmission of the common control messages among the cells of different network elements can be realized. | 2011-03-10 |
20110058514 | METHOD AND SYSTEM FOR REQUESTING ALLOCATION OF BANDWITH AND ALLOCATING BANDWITH IN A MULTI-HOP RELAY ENVIRONMENT - The present invention relates to a method and a system for requesting the allocation of bandwidth in a multi-hop relay environment. The present invention relates to a method for requesting bandwidth of a relay node in the multi-hop relay environment and a method for allocating bandwidth of a base station. In the invention, single piggybacking and multiple piggybacking based on approval-processing sub-headers are discriminated from single piggybacking and multiple piggybacking based on extensible sub-headers. Therefore, the bandwidth-requests for each CID from the base station are integrated and managed for each relay so that the message transmission and reception load may be reduced and the allocation of bandwidth may be optimized. | 2011-03-10 |
20110058515 | DATA AND TELEPHONY SATELLITE NETWORK WITH MULTIPLE PATHS - A satellite network communicates data packets between a local handset and a remote handset in order to establish telephone communication between the handsets. The satellite network has a primary LEO satellite that receives said data packets from the local handset, and various communication links between the primary LEO satellite and the remote handset. When the data packets are received from the local handset, the primary LEO satellite concurrently transmits the data packets in their entirety through each of the communication paths to the remote handset. When the data packets are received, the remote handset identifies and discards duplicate data packets that are not needed. | 2011-03-10 |
20110058516 | Accessory Based Data Distribution - In some aspects, a telecommunications device obtains an identifier from an accessory token. The telecommunications device may transmit the identifier to a server to request content associated with the identifier. The telecommunications device may receive the content from the server when the identifier is valid and/or the content is available. In various aspects, the accessory token is communicatively coupled to the telecommunications device, which enables the telecommunications device to obtain the identifier. | 2011-03-10 |
20110058517 | RADIO COMMUNICATION SYSTEM AND METHOD - A radio communication system for connecting mobile nodes to public network, include base stations connected to mobile nodes by radio, node registration devices connected to control the stations and register node registration information representing contents of node connection to the node registration device through the station into node information management device which is connected to public network and manages mobile node address information in registration information registered by the node registration devices. A combination of the base station and node registration device controlling the station and a combination of the station, node registration device controlling the station, other node registration device and one or a plurality of the node information management device constitute different communication routes any of which is utilized to realize connection from node to public network. | 2011-03-10 |
20110058518 | Multi-Channel Single Carrier Per Channel (SCPC) Systems and Related Methods - A multi-channel demodulating system comprising an analog to digital converter (ADC) that samples an input signal and produces a digital signal, a tuning, filtering, and decimation stage coupled to the ADC and configured to select a transponder based on a frequency range of the digital signal and deliver a signal representative of the digital signal to the transponder, and a demodulator coupled to the selected transponder, a decoder, and the circuit stage, the demodulator configured to receive the representative signal from the transponder, the demodulator and decoder configured to separate and process the representative signal to produce a processed signal. The system further comprises a packet de-encapsulation module coupled to the demodulator and decoder configured to de-encapsulate packets of data contained in the processed signal, a switch coupled to the packet de-encapsulation module and a satellite router, the switch configured to transmit the packets of data to the satellite router. | 2011-03-10 |
20110058519 | System and Method for Over the Air Provisioning of a Mobile Communications Device - A method for provisioning a mobile communications device comprises sending a registration request for registration with a registration server, the registration request including a request for a personal information number; receiving a response from the registration server, the response including the personal information number; sending a provisioning request to a network node, the request including the personal information number and at least one device identifier associated with the mobile communications device; receiving a response from the network node, the response including a URL and a session ID based upon the personal information number and the at least one device identifier associated with the mobile communications device; and launching an application on the mobile communication device to establish a communication session between the mobile communication device and a provisioning system. | 2011-03-10 |
20110058520 | METHOD, APPARATUS AND COMPUTER PROGRAM FOR SUPPORTING A SESSION IDENTIFIER IN CASE OF A TRANSFER BETWEEN DIFFERENT RADIO ACCESS NETWORKS - A method and application server for supporting a communication established between a first mobile terminal towards a telecommunications network that includes first and second radio access networks. When a session setup is initiated with respect to the first mobile terminal, the application server receives a session identifier. The application server enters the identifier into an identifier list comprising one or more identifiers for identifying sessions with respect to the first mobile terminal. If the application server receives an indication of a session transfer from the first radio access network to the second radio access network, the application server provides the identifier list to the second radio access network in response to the indication. | 2011-03-10 |
20110058521 | USER INFORMATION NOTIFYING METHOD, SYSTEM AND APPARATUS - The present invention discloses a user information notifying method, system and apparatus. In the present invention, a MME obtains RAT/Frequency Selection Priority information of UE, and notifies an eNodeB of the information. According to the method, system and apparatus of the present invention, the eNodeB can obtain the RAT/Frequency Selection Priority information of the UE, and further perform Radio Resource Management according to the information, thereby improving system performance. | 2011-03-10 |
20110058522 | METHOD AND APPARATUS FOR TRANSMITTING AN ACK/NACK SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - Machine-readable media, methods, apparatus and system for transmitting ACK/NACK signal in a wireless communication system are described. In some embodiments, a sequence corresponding to one of acknowledge (ACK) information and non-acknowledge (NACK) information may be determined. Then, the sequence may be mapped onto a transmission channel for later transmission from the mobile station to a base station. In some embodiments, the transmission channel may be allocated with at least a part of three feedback mini-tiles (FMTs), wherein each of the FMTs comprises two subcarriers contiguous in frequency domain by six orthogonal frequency division multiplexing (OFDM) symbols contiguous in time domain and the three FMTs being discontinuous in frequency domain. | 2011-03-10 |
20110058523 | MANAGING MULTIPLE APPLICATION FLOWS OVER AN ACCESS BEARER IN A QUALITY OF SERVICE POLICY ENVIRONMENT - A method, system and software to dynamically allocate bandwidth on an application flow basis in a non-Internet-Protocol Multimedia Subsystem (non-IMS) environment is described. The method includes: receiving a request to create an application flow for an Internet Protocol (IP) filter with desired Quality of Service (QoS) properties; searching for an access bearer that is comparable to the desired QoS properties; when a comparable access bearer is not found, creating the access bearer adapted to support the IP filter and the desired QoS properties; and associating the application flow with the access bearer. According to various embodiments, a method to add a new application flow from a flow bandwidth manager to a Policy Control and Charging Rules Function (PCRF) is also described The method can include: searching for an access bearer that supports an IP filter and desired QoS properties; when there is an existing access bearer, mapping the new application flow to the access bearer and modifying the properties of the existing access bearer to support the new application flow and creating a new access bearer when there is no existing access bearer. | 2011-03-10 |
20110058524 | DISTRIBUTED CHANNEL ASSIGNMENT - Disclosed, in example embodiment herein, is an apparatus comprising an interface and channel selection logic coupled to the interface. The channel selection logic is operable to receive data representative of neighboring wireless devices to a wireless device occupying a channel for a plurality of channels via the interface. The channel selection logic is responsive to receiving the data representative of neighboring wireless devices occupying the plurality of channels to generate a graph for each of the plurality of channels, wherein vertices of the graph represent the wireless device and neighboring wireless devices occupying the channel and edges of the graph represent wireless devices with overlapping coverage areas. The channel selection logic selects the channel for the wireless device whose graph has the smallest radius | 2011-03-10 |
20110058525 | METHOD FOR FILLING A WIMAX DOWNLINK FRAME BY THE BASE STATION OF A WIMAX NETWORK - A method for filling a WiMAX downlink frame by the base station of a WiMAX network, wherein the downlink MAC Protocol Data Units (MPDUs) are fitted into the WiMAX downlink frame by means of a DL-MAP scheduler, which allows the concatenation of downlink MPDUs from different connections in single bursts, the bursts having a rectangular shape in terms of the two dimensions—OFDMA (Orthogonal Frequency Division Multiple Access) symbols and subchannels—of a WiMAX downlink frame, is characterized in that the DL-MAP scheduler is configured in a way that it considers the concatenation of downlink MPDUs from different connections in single bursts based on the available and/or the remaining free space in the WiMAX downlink frame, such that it simplifies the DL-MAP scheduler task of filling the WiMAX downlink frame minimizing the amount of wasted radio resources. | 2011-03-10 |
20110058526 | METHOD FOR SCHEDULING DISTRIBUTED VIRTUAL RESOURCE BLOCKS - A method for efficiently scheduling virtual resource blocks to physical resource blocks is disclosed. In a wireless mobile communication system, for distributed mapping of consecutively allocated virtual resource blocks to physical resource blocks, when nulls are inserted into a block interleaver used for the mapping, they are uniformly distributed to N | 2011-03-10 |
20110058527 | METHOD AND DEVICE FOR ALLOCATING A BROADCAST CHANNEL IN A WIRELESS MOBILE COMMUNICATION SYSTEM - A method for receiving a superframe header at a mobile station in a wireless mobile communication system is disclosed. The method comprises receiving a sub-frame including the superframe header and a first data channel and decoding the received superframe header. Herein, the superframe header is located within a predetermined physical frequency band and the predetermined physical frequency band includes a synchronization channel. | 2011-03-10 |
20110058528 | SYMBOL TIMING SYNCHRONIZATION OBTAINING METHOD AND APPARATUS ROBUST TO FREQUENCY OFFSET IN CELL SEARCH OF WIRELESS COMMUNICATION SYSTEM - Disclosed is a symbol synchronization obtaining apparatus robust to a frequency offset in a cell search of a wireless communication system. The symbol synchronization obtaining apparatus robust to a frequency offset in a cell search of a wireless communication system may include a sequence generator to generate a base sequence for obtaining the symbol synchronization, a synchronization pattern generator to generate a modified sequence based on the base sequence, and to generate a synchronization pattern by combining the modified sequence and the base sequence, a frequency mapping unit to perform mapping of transmission information to a time area and a frequency area, based on the synchronization pattern, for generating a transmission frame, and a transmitting unit to transmit the transmission frame. | 2011-03-10 |
20110058529 | MOBILE COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, BASE STATION APPARATUS, COMMUNICATION METHOD, AND COMMUNICATION CONTROL METHOD - A mobile station apparatus acquires handover information when a handover instruction message is received and continues a reception process in a source cell until handover execution time when the handover is determined to be a synchronous handover. When it is handover execution time, the mobile station apparatus follows handover information to perform cell switch control and starts a downlink synchronization establishment process for a target cell. When downlink synchronization establishment has succeeded before the expiration of a handover protection time and when the mobile station apparatus determines that downlink synchronization establishment has succeeded within a downlink synchronization establishment expected time, the mobile station apparatus determines that uplink synchronization establishment is not necessary for the target cell and executes a synchronous handover process that does not require random access. On the other hand, when determining that the downlink synchronization establishment has not succeeded, the mobile station apparatus determines that uplink synchronization establishment is necessary for the target cell and executes a handover process that requires random access transmission. | 2011-03-10 |
20110058530 | System and method for supporting robust header compression in wireless communication system - A system and method support robust header compression (ROHC) for a mobile station (MS) handover in a wireless communication system. If a mobile station (MS) accesses a base station (BS) controlled by the ASN-GW through a handover, ROHC parameter information is received from a previous ASN-GW controlling a previous BS accessed by the MS before the handover. An ROHC parameter for ROHC-based communication with the MS is determined on the basis of the ROHC parameter information received from the previous ASN-GW. The determined ROHC parameter is transmitted to the MS by using a path modification request message for an ROHC service flow. | 2011-03-10 |
20110058531 | SINGLE RADIO WIMAX INTERWORKING - In some embodiments a method comprises establishing a layer 2 tunnel between a mobile station coupled to a E-UTRAN and a WiMAX base station, implementing a first signaling interface through the layer 2 tunnel between a mobility management entity (MME) and the WiMAX base station, and preregistering the mobile station with the WiMAX access service network gateway at least in part via the layer 2 tunnel. Other embodiments may be described. | 2011-03-10 |
20110058532 | HANDOFFS IN A HIERARCHICAL MOBILITY LABEL-BASED NETWORK - A system establishes a communication path between a mobile node and a first label edge router, registers the mobile node at the first label edge router, and creates a mobility binding at the first label edge router. The system also establishes a label switched path between the first label edge router and a second label edge router by propagating the mobility binding in the system, and establishes communication between the mobile node and a corresponding node over the label switched path. The system further maintains the communication between the mobile node and the corresponding node over the system when the mobile node moves from one physical location to another physical location and causes a handoff of the mobile node between two layer 2 grooming networks. | 2011-03-10 |
20110058533 | METHOD OF ALLOCATING RESOURCE AND METHOD OF FORMING RANGING CHANNEL - An access point allocates a resource for ranging to an access terminal included therein, and receives a ranging channel that includes an identifier of the access terminal and a plurality of pilots. The AP checks the access terminal by using the received identifier, and measures a round trip delay of the access terminal based on the received pilots. | 2011-03-10 |
20110058534 | METHOD IMPLEMENTED BY A SUBSCRIBER UNIT FOR SELECTIVELY SUPPRESSING COMMUNICATIONS - A subscriber unit, used for communicating in voiced communications at a first data rate and communicating at a second data rate for other data, suppresses a selected communication during communication rate modification. A determination is made as to whether the transmission requires a change in data rate, and a switching circuit responds by engaging a different communication channel. Blocking circuitry blocks transmissions until the different data rate is established. This provides an optimum data rate, while preserving the integrity of the data transmitted. | 2011-03-10 |
20110058535 | Primary user detection - A low complexity primary user detection system is disclosed. Signals are filtered to reduce the number of signals that must be processed. Width and PRI of the signals are used to match a constellation associated with a primary user. If the constellation is matched, communication parameters are adjusted to make way for the primary user. | 2011-03-10 |
20110058536 | WIRELESS NETWORK SELECTION APPARATUS - A wireless network selection apparatus comprises a storage unit, a transmitting unit, a first receiving unit, and a second receiving unit. The storage unit stores first connection setting information to join a first wireless network and second connection setting information to join a second wireless network which is different from the first wireless network. The transmitting unit transmits the first connection setting information or the second connection setting information to an external communication terminal. The first receiving unit receives a request to transmit the first connection setting information transmitted from the transmitting unit. The second receiving unit is provided in the same housing as that in which the first receiving unit is provided and receives a request to transmit the second connection setting information transmitted from the transmitting unit. | 2011-03-10 |
20110058537 | MOBILE ELECTRONIC DEVICE AND COMMUNICATION METHOD APPLICABLE THERETO - A mobile electronic device and a communication method applicable thereto. The mobile electronic device includes a microprocessor, a routing IC and a modem unit. The microprocessor is used to connect with at least one first external device via the routing IC. The modem unit is coupled to the microprocessor for connecting with a base station, so that the first external device is enabled to communicate with the base station via the mobile electronic device. | 2011-03-10 |
20110058538 | HAND-HELD ELECTRONIC DEVICE AND COMMUNICATION METHOD APPLICABLE THERETO - A hand-held electronic device and a communication method applicable thereto. The hand-held electronic device includes a microprocessor and a modem unit. The microprocessor connects the hand-held electronic device with at least one first external device via an ad-hoc network protocol. The modem unit connects with a base station for enabling the first external device to communicate with the base station via the hand-held electronic device. | 2011-03-10 |
20110058539 | METHOD FOR COMMUNICATING AND RADIO STATION THEREFOR - The present invention relates to a method for communicating between a primary station and a secondary station comprising (a) at the secondary station, upon arrival of a data packet to be transmitted to the primary station, buffering said data packet in a buffer, (b) at the secondary station, after the expiration of a time period starting at arrival of the data packet, transmitting to the primary station a request for an uplink transmission resource if a grant of uplink transmission resource is not received during the said time period, (c) at the primary station, granting to the secondary station an uplink transmission resource. | 2011-03-10 |
20110058540 | System and Method for Supporting Extended Protocols in a Wireless Communication System - A system and method is provided for supporting data transfer protocols that extend beyond standard protocols used in conventional data over cable systems. A subscriber station in accordance with the invention determines, during registration, whether a base station with which it communicates is capable of supporting an extended protocol, and if it is, transfers data to the base station in accordance with the extended protocol. Additionally, a base station in accordance with the invention is notified during registration whether or not a subscriber station supports an extended protocol and stores this information. When a request for transmission opportunity is subsequently received from the subscriber station, the base station accesses the stored information to determine if the cable modem supports the extended protocol. If the subscriber station supports the extended protocol, the base station processes data received from the subscriber station during the transmission opportunity in accordance with that protocol. | 2011-03-10 |
20110058541 | METHOD FOR CONTROLLING THE NETWORK SELECTION BY THE HOME OPERATOR OF DUAL USER EQUIPMENT - The invention concerns a method for controlling the network selection by the home operator of dual user equipment ( | 2011-03-10 |
20110058542 | METHODS AND ARRANGEMENTS FOR PAGING A COMMUNICATION DEVICE - A method for forwarding a page message to a communication device includes receiving a page message and a list of Closed Subscriber Group (CSG) Identities in conjunction therewith. Each of the CSG Identities is indicative of which radio base stations among said plurality of radio base stations the communication device is allowed to access. The method also includes selecting, based on the list of CSG Identities received in conjunction with the received page message, a subset of radio base stations among said plurality of radio base stations and forwarding the page message to each radio base station in the selected subset of radio base stations, whereby the communication device is paged only via radio base stations that the communication device is allowed to access. | 2011-03-10 |
20110058543 | FREQUENCY BLOCK ALLOCATION APPARATUS AND METHOD, AND COMPUTER PROGRAM - A frequency block allocation apparatus based on a single carrier frequency division multiple access method includes an allocation index computation target selector that selects frequency block groups, each consisting of one or more continuous non-allocated frequency blocks from a set of non-allocated frequency blocks; an allocation index computation unit that computes an allocation index for each target pair of each frequency block group and a terminal; and a frequency block allocation unit that determines one of the target pairs to be a frequency block allocation target, in accordance with priority based on the computed allocation indexes. | 2011-03-10 |
20110058544 | METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR VERIFYING THE AVAILABILITY OF AN INTERNET PROTOCOL (IP) MEDIA ROUTER DURING A CALL SETUP - Methods, systems, and computer readable media for verifying the availability of an IP media router during a call setup are described. In one embodiment, the method comprises receiving, from a first endpoint device, a call setup signaling message requesting to establish a call session with a second endpoint device. The method also includes selecting a first media router to establish a first call leg of the call session, performing a route query and MAC address resolution to determine if the first media router is available, and if the first media router is determined to be available, creating a first redirect stream to communicate media packets received from the second endpoint device to the first endpoint device via the first call leg. | 2011-03-10 |
20110058545 | POLICY ROUTING IN A COMMUNICATIONS NETWORK - A method of constructing a globally unique locator for a network entity attached to a network. A path between a core network and the network entity via intermediate network entities is determined by applying policy routing. The globally unique locator for the network entity is constructed by concatenating elements identifying the locations of the network entity, the intermediate network entities and a node in the core network. The identifying elements are obtained from Attachment Registers associated with each of the network entity, the intermediate network entities and the node in the core network. | 2011-03-10 |
20110058546 | Transmission Apparatus, Transmission Method and Non-Transitory Computer-Readable Recording Medium Thereof - A transmission apparatus for receiving frames from one transmission path, storing the frames in plural buffers, and transmitting the frames to another transmission path in which an estimated discard time determination part configured to determine an estimated discard time of the frames stored in the plural buffers, a transmission order determination part configured to determine a transmission order of the frames, an estimated transmission time calculation part configured to calculate an estimated transmission time of each of the frames based on the transmission order, and a discard control part configured to discard a target frame from the frames stored in the plural buffers based on the estimated transmission time and the estimated discard time in a case where the estimated discard time of the target frame is the same as or earlier than the estimated transmission time of the target frame, are provided. | 2011-03-10 |
20110058547 | PROCESS AND SYSTEM FOR AN INTEGRATED CARRIER ETHERNET EXCHANGE - An Ethernet exchanger is coupled to two or more Ethernet networks to exchange information among the two or more Ethernet networks using virtual circuits. A first Ethernet network is associated with a first carrier and a first port of the Ethernet exchanger. A second Ethernet network is associated with a second carrier and a second port of the Ethernet exchanger. Network information of the first Ethernet network and network information of the second Ethernet network are provided by the respective first carrier and the second carrier and stored in a database. A virtual circuit is provisioned to interconnect the first Ethernet network and the second Ethernet network based on a partnership between the first carrier and the second carrier and based on the stored information about the first network and the second network. The virtual circuit is associated with the first port and the second port. The stored information about the first network or the second network is reusable for subsequent provisioning of other virtual circuits associated with the first carrier or the second carrier. | 2011-03-10 |
20110058548 | METHODS AND APPARATUS FOR MANAGING MULTICAST TRAFFIC THROUGH A SWITCH - A method for managing multicast traffic through a switch operating in the layer | 2011-03-10 |
20110058549 | METHOD AND SYSTEM FOR LAYER 2 MANIPULATOR AND FORWARDER - The disclosure describes method and system for forwarding frames of a flow via a layer 2 forwarder and manipulator (L2FM) for improving network utilization and improving users experience by reducing the latency associated with the flow. When a new flow is identified, forward control information for frames of the new flow is obtained. The forward control information can include re-writing of at least one field in an original header of the frames of the new flow. At least one field in an original header of the frames of the new flow is manipulated according to the obtained forward control information, and the manipulated frames of the new flow are forwarded accordingly. | 2011-03-10 |
20110058550 | METHOD, APPARATUS AND SYSTEM FOR ALLOCATING IPTV RESOURCES - The present invention relates to the field of communications technologies, and discloses a method, an apparatus, and a system for allocating Internet Protocol Television (IPTV) resources to save bandwidth resources in the IPTV service. The method includes the following: a multicast access control entity allocates resources to a unicast access control entity through an intermediate network entity when unicast resources are not enough; and the unicast access control entity allocates resources to the multicast access control entity through the intermediate network entity when multicast resources are not enough. The present invention is primarily applicable to IPTV technologies. | 2011-03-10 |
20110058551 | METHODS AND APPARATUS FOR MANAGING MULTICAST TRAFFIC THROUGH A SWITCH - A method for managing multicast traffic through a switch operating in the layer 2 of the OSI model, and routers and switches involved in the method. In one implementation a router sends to a switch a message containing identification of specific equipment which has requested specific multicast traffic, and also containing a specification of the specific traffic, and when the switch receives data carrying multicast traffic, based on the destination and origin addresses of the data, and based on the identification of the specific equipment and of the specification of the specific multicast traffic that it has received in the message, the switch deduces if the data carry the specific traffic that has been requested by the specific equipment, and decides through which of its ports it transmits the data. | 2011-03-10 |
20110058552 | Multicast Control Technique Using MPLS - In this invention, an idea of the reverse direction label switched path (RLP) in Multi-Protocol Label Switching (MPLS) is applied to the multicast transmission to improve the management transmission in the multicast transmission, and to easily carry out an additional connection and disconnection. Specifically, in the reverse direction symmetric routing Label switched Path (LP), a virtual label in addition to an input label and an output label is used for the reverse direction routing. However, in this invention, instead of the virtual label, a multicast address to which a client terminal, which is connected to a head of the path on the reverse direction routing, and corresponds to a leaf in the multicast tree, is connected, is registered, as a multicast index, in routers on the path. Then, when receiving a multicast packet including a label and a multicast address, an output label corresponding to the received label is identified, thereby a destination link is identified. | 2011-03-10 |
20110058553 | METHOD AND APPARATUS FOR PROVIDING CONNECTIVITY IN A NETWORK WITH MULTIPLE PACKET PROTOCOLS - Methods and systems are provided for routing or forwarding packet data conforming to two different communication protocols simultaneously in a computer network. The first protocol may be a legacy protocol, such as IPv4, with routing being performed in a manner that maintains legacy behavior and functions. Such functions may include network address translation. The second protocol may be a newer protocol, such as IPv6, with the routing or forwarding being performed through reduced complexity bridging that enables simplified connectivity of second protocol devices. The bridging performed typically requires less memory and processing power than traditional routing techniques such as those implemented for the first protocol. Reduced memory and processing power requirements enable the second protocol routing functions to be added to legacy equipment that would not otherwise be able to support routing of the second protocol packet data. | 2011-03-10 |
20110058554 | METHOD AND SYSTEM FOR IMPROVING THE QUALITY OF REAL-TIME DATA STREAMING - A method for improving quality of real time data streaming over a network. The network includes a plurality of nodes. A source node in the plurality of nodes transmits a real time data packet to a destination node in the plurality of nodes. First, the source node obtains maximum latency information about the data packet of a data frame. The source node stores information about the maximum latency in the data packet. Then, the source node and zero or more intermediate nodes route the data packet from the source to the destination such that the data packet reaches the destination before the maximum latency expires. Each intermediate node, updates the maximum latency of a packet by subtracting the time spent by the packet at the intermediate node from the maximum latency value received along with the packet. | 2011-03-10 |
20110058555 | TRANSMISSION APPARATUS AND SIGNAL TRANSMISSION METHOD - A transmission apparatus that receives plural packets and transmits a frame of a synchronous network, includes a multiplexing part that divides, in segment units, the plural packets, each segment having a predetermined length, and multiplexes the segments to generate a data stream signal; a transmitting part that transmits the data stream signal to a mapping part; and the mapping part that maps the data stream signal in the frame of the synchronous network. | 2011-03-10 |
20110058556 | GENERIC ROUTING ENCAPSULATION BEARING METHOD, APPARATUS AND SYSTEM - A Generic Routing Encapsulation (GRE) bearing method, apparatus and system are provided. In the transmission and bearing of GRE frames, multiplexing frame header information of the GRE frames is obtained by inquiring mapping of the GRE frames; then the GRE frames that meet a predetermined multiplexing condition are set in payloads of one outer Internet Protocol (IP) frame according to the obtained multiplexing frame header information of the GRE frames. In this way, for data frames with small payloads, unnecessary encapsulation overheads are reduced, and the transmission efficiency of the data frames is improved. Thus, the network bandwidth resources are saved, and the system transmission performance is improved. | 2011-03-10 |
20110058557 | METHODS, SYSTEMS, AND/OR DEVICES FOR PROVIDING NETWORK ACCESS - Certain exemplary embodiments comprise a method that can comprise, via an Ethernet Channel Service Unit (ECSU), providing a packet conversion between a Serial Wide Area Network (WAN) protocol and an Ethernet network protocol. The ECSU can be adapted to provide access to a network service between a first device adapted to communicate using an Ethernet protocol via the Ethernet network and a second device adapted to communicate using a serial protocol via the Serial WAN. | 2011-03-10 |
20110058558 | NETWORK CONTROL DEVICE AND NETWORK CONTROL METHOD - A network control device includes a command receiver receiving a command with respect to operation policies of a plurality of maintenance associations (MAs) that construct a single call, a message generator generating a message including information about the operation policies of the plurality of MAs according to the command, and a message transmitter transmitting the message to a neighboring network control device. | 2011-03-10 |
20110058559 | VLAN DATA FRAMING AND TRANSMISSION - Amethod of framing data for transmission to or from one of a number of users connected to a VLAN data network, comprising dividing the data into frames including a header and a payload, the header comprising a portion of one of two selectable values assigned according to whether the data is to be transmitted from or to a user, wherein the header comprises a VLAN tag including a Tag Protocol ID (TPID) portion and a Tag Control Information (TCI) portion, a first TPID value being assigned to data to be transmitted from the user and a second, different, TPID value being assigned to data to be transmitted to a user. | 2011-03-10 |
20110058560 | VIRTUAL NETWORK MANAGEMENT SERVER AND NETWORK SYSTEM - A virtual network management server includes ring node information that manages configuration nodes for each of the rings, and ring connection I/F for each of the ring configuration nodes, generates the VLAN configuration information so as to transfer a frame that is transmitted or received by a designated gateway connection port and a designated base station connection port by the designated VLAN, and also so as to transmit or receive a tagged frame of the designated VLAN by the ring connection I/F of all of the ring to which the gateway connection switch belongs and the ring to which the base station connection switch belongs, and updates the VLAN configuration of the switch. | 2011-03-10 |
20110058561 | Apparatus and method for transmitting/receiving packet in dual modem mobile communication terminal - An apparatus and a method for transmitting/receiving a packet in a dual modem mobile communication terminal support data communication using both a host modem and a slave modem by additionally driving the slave modem when packet traffic is heavy. In the method for transmitting/receiving, at a host modem, a packet in a mobile communication terminal that includes the host modem and a slave modem, when a packet is received under a state where only the host modem is driven, it is determined whether a buffer count of the host modem is greater than a reference value. When the buffer count of the host modem is greater than the reference value, the slave modem is additionally driven and the received packet is provided to the slave modem. | 2011-03-10 |
20110058562 | Network Gateway with Enhanced Requesting - A gateway and/or software for running on a gateway that communicates data units from a connection based network to a connectionless network, where the gateway uses at least some network protocol data from the connection based network in checking against a set of rules to determine whether some responsive reaction is appropriate. Preferably, the network protocol data from the connection based network is low level network protocol data (that is, physical layer and/or data link layer) that would otherwise be discarded by the gateway as the data was de-encapsulated and sent along to the receiving, connectionless network. Some possible responsive reactions include: selectively blocking data communication; slowing down selected data communications; sending responsive communications back to selected data sending machines; and/or alerting of network administrator(s). | 2011-03-10 |
20110058563 | ARCHITECTURAL FRAMEWORK OF COMMUNICATION NETWORK AND A METHOD OF ESTABLISHING QOS CONNECTION - Disclosed herein are an architectural framework ( | 2011-03-10 |
20110058564 | NETWORK RELAY DEVICE AND MEMORY CONTROL METHOD - A network relay device includes a packet buffer for temporarily storing a received packet, and a packet buffer control section for changing an effective buffer number depending on the received amount of packet. When a traffic amount is small, the packet buffer control section reduces the power consumption by stopping the feeding of power or the supply of clock to a part of the packet buffers. The network relay device further includes plural table memories storing a table for deciding the transfer destination of packet, and a table memory control section for changing an effective table number according to a required number of table entries. When the required table entry number is small, the table memory control section reduces the power consumption by stopping the feeding of power or the supply of clock to a part of the table memories. | 2011-03-10 |
20110058565 | REAL TIME CONFIGURATION AND PROVISIONING FOR A CARRIER ETHERNET EXCHANGE - An Ethernet switch platform is configured to receive and process a provisioning order to establish a logical virtual circuit interconnecting a physical port associated with a buying carrier and a physical port associated with a selling carrier to set up a private network to private network connection between the buying and selling carriers. The virtual circuit is established with parameters called for in a request for quote (RFQ) initiated by the buying carrier and in a response to the RFQ submitted by the selling carrier. Information from the RFQ and from the response together with information previously stored in a relational database is extracted and used to fill out the provisioning order. The information extracted from the database include profile information and network service information associated with the buying and selling carriers. | 2011-03-10 |
20110058566 | PACKET SWITCH APPLIANCE WITH A PACKET SWITCHING AND PACKET PROCESSING DAUGHTER BOARD - A packet switch appliance for connection to a packet switching network, the packet switch appliance has a motherboard that includes a processor, a network switch chip, and a connector. The packet switch appliance also includes a daughter board configured to be removably connected to the motherboard through the connector. The daughter board may include one or more of a network switch chip and a processor unit. | 2011-03-10 |
20110058567 | ROOT NODE REDUNDANCY FOR MULTIPOINT-TO-MULTIPOINT TRANSPORT TREES - A mechanism is provided to configure a plurality of transport trees in a transport network, each of which correspond to a native tree (e.g., a bidirectional multicast tree). In embodiments of the present invention, each of the plurality of transport trees has a unique root node so that in the event of a failure of any root node, the transport trees with surviving root nodes can be used to transport traffic from the native tree. The present invention provides for each transport network edge router being independently responsible for selection of a transport tree that the edge router will use to transmit a datastream, while also being capable of receiving packets from any transport tree. Through the use of such configured transport trees along with independent selection of a transport tree, the present invention provides a reduction in the disruption of datastream transmission due to a root node failure. | 2011-03-10 |
20110058568 | PACKET-BASED COMMUNICATION SYSTEM AND METHOD - A system and method for facilitating communication of packets between one or more applications residing on a first computing device and at least one second computing device. The system comprises a connection manager adapted to receive packets from the at least one second computing device, and a packet cache for storing packets received by the connection manager. The connection manager, upon receiving a packet from a second computing device, transmits the packet to the packet cache for storage and notifies each of the applications of receipt of the packet. Subsequently, the packet is retrievable from the packet cache by a notified application, and verification that the packet is intended for communication to the notified application is made. | 2011-03-10 |
20110058569 | NETWORK ON CHIP INPUT/OUTPUT NODES - The present invention relates to a torus network comprising a matrix of infrastructure routers, each of which is connected to two other routers belonging to the same row and to two other routers belonging to the same column; and input/output routers, each of which is connected by two internal inputs to two other routers belonging either to the same row, or to the same column, and comprising an external input for supplying the network with data. Each input/output router is devoid of queues for its internal inputs and comprises queues assigned to its external input managed by an arbiter which is configured to also manage the queues of an infrastructure router connected to the input/output router. | 2011-03-10 |
20110058570 | PROGRAMMABLE CROSSBAR STRUCTURES IN ASYNCHRONOUS SYSTEMS - Methods, systems, and circuits for forming and operating a crossbar structure in an asynchronous system are described. One or more input ports of a programmable crossbar structure may be connected to send data to one or more output ports. A group of output ports each receiving data from an input port may be connected to send, in response, control signals via a programmable element to the input port. The number of programmable elements used may be determined by the number of input ports being copied to more than one output port. Additional methods, systems, and circuits are disclosed. | 2011-03-10 |
20110058571 | DATA SWITCH WITH SHARED PORT BUFFERS - A communication apparatus includes a plurality of switch ports, each switch port including one or more port buffers for buffering data that traverses the switch port. A switch fabric is coupled to transfer the data between the switch ports. A switch control unit is configured to reassign at least one port buffer of a given switch port to buffer a part of the data that does not enter or exit the apparatus via the given switch port, and to cause the switch fabric to forward the part of the data to a destination switch port via the at least one reassigned port buffer. | 2011-03-10 |
20110058572 | A Method for generating the group identifier of the random access response message, and a random access method - The invention discloses a method for generating a group identifier of the random access response message. The group identifier is determined according to the serial number of the subframe in which the random access time slot of random access preamble message transmitted by the terminal lies and the serial number of the random access channel in which the random access time slot lies. A random access method and a random access response method in a cellular radio communication system are also provided. Using the method of the present invention, the terminal needs not acquire the absolute system time of the cellular system in which the random access time slot lies, and can access the cellular radio communication system rapidly and accurately. | 2011-03-10 |
20110058573 | USER SELECTABLE MULTIPLE PROTOCOL NETWORK INTERFACE DEVICE - An Ethernet/Fibre Channel network interface device which can be configured by a user to operate on an FC SAN, a CEE network or both. In one embodiment the configuration can be done using jumpers or connections to the pins of a chip, thus allowing a manufacturer to only inventory one device for use with either or both networks. In a second embodiment the configuration can be done in software by setting registers and memory values on the device. This embodiment allows the device to be changed between configurations without removing it from the server or blade. The devices according to the preferred embodiments further reduce power consumption by shutting down portions of the chip not needed based on the configuration of the device. | 2011-03-10 |
20110058574 | APPARATUS AND METHOD FOR RADIO COMMUNICATION - A radio communication apparatus capable of alleviating a burden in setting a transmission format and suppressing increases in the scale of the apparatus. In this apparatus, space multiplexing adaptability detection section ( | 2011-03-10 |
20110058575 | TRANSMISSION RATE SETTING DEVICE, TRANSMISSION RATE SETTING DEVICE CONTROL METHOD, CONTENT-FILTERING SYSTEM, TRANSMISSION RATE SETTING DEVICE CONTROL PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM - To reduce wasteful consumption of electric power for a data communication without providing a complex mechanism, a communication connection device ( | 2011-03-10 |
20110058576 | Method and device for improving clock stability - A method and device for improving clock stability are provided. The method includes: determining whether a difference between a current sender timestamp (ST) and a current receiver timestamp (RT) is a mutated value; pre-processing the ST and RT, if the difference between the ST and RT is a mutated value; acquiring a service clock according to the pre-processed ST and RT; and sending time division multiplex (TDM) data according to the service clock.. Through the embodiments of the present disclosure, a packet delay variance (PDV) may be smoothed, the impairment of the PDV on clock recovery may be reduced, the quality of the clock recovery may be improved, and the problem of clock synchronization may be solved through the mutation processing on the timestamps. | 2011-03-10 |
20110058577 | Thulium and/or holmium doped silicated glasses for two micron lasers - A laser glass fiber with a core of the fiber composition, comprising a silicate glass host, one or more glass network modifiers, one or more glass network intermediators, and Thulium ions, Holmium ions, or a combination of Thulium ions and Holmium ions. The fiber emits laser light from 1.7 micron to 2.2 micron. | 2011-03-10 |
20110058578 | LASER AND A METHOD FOR OPERATING THE LASER - A laser comprising: a resonator cavity defined by at least two reflectors, wherein the at least two reflectors are highly reflective at a plurality of fundamental wavelengths; a laser medium disposed in the resonator cavity capable of generating plurality of fundamental wavelengths; an optical pump source for energizing the laser medium, thereby causing laser light at the plurality of fundamental wavelengths to resonate in the resonator cavity simultaneously; and a nonlinear material located in said resonator cavity capable of simultaneously converting each of the plurality of wavelengths of laser light to generate converted laser light having a plurality of converted wavelengths, said converted wavelengths being derived from but different to the fundamental wavelengths; wherein the non-linear material is at least partially phase matched to nonlinearly convert the frequencies of each of the fundamental wavelengths simultaneously such that a plurality of converted wavelengths are able to be simultaneously generated. | 2011-03-10 |
20110058579 | LASER LIGHT SOURCE - A laser light source | 2011-03-10 |
20110058580 | EXTENDABLE ELECTRODE FOR GAS DISCHARGE LASER - A movable electrode assembly for use in laser system includes a first electrode, a second electrode arranged opposite from the first electrode, the second electrode being spaced apart from the first electrode by a discharge gap and a discharge gap adjuster interfaced with at least one of the second electrode or the first electrode, the discharge gap adjuster configured to adjust the discharge gap. A movable electrode assembly for integration into a housing of a laser system includes a first electrode having a discharge surface, a second electrode having a discharge surface, such that the discharge surface of the first electrode and the discharge surface of the second electrode face each other in a spaced apart setting that defines a desired discharge gap, and a mechanism for moveably adjusting the spaced apart setting toward the desired discharge gap. A method of adjusting a discharge gap is also disclosed. | 2011-03-10 |
20110058581 | Measuring station for measuring vehicles - A measuring station for measuring vehicles has at least one laser source, which emits laser radiation ( | 2011-03-10 |
20110058582 | LUMINESCENT MATERIAL AND LIGHT-EMITTING DEVICE - A luminescent material which is featured in that it exhibits an emission peak at a wavelength ranging from 490 to 580 nm as it is excited by light having a wavelength ranging from 250 to 500 nm and that it has a composition represented by the following general formula (2): | 2011-03-10 |
20110058583 | LUMINESCENT MATERIAL AND LIGHT-EMITTING DEVICE - A luminescent material which is featured in that it exhibits an emission peak at a wavelength ranging from 490 to 580 nm as it is excited by light having a wavelength ranging from 250 to 500 nm and that it has a composition represented by the following general formula (2): | 2011-03-10 |
20110058584 | SEMICONDUCTOR LASER DEVICE AND FABRICATION METHOD FOR THE SAME - A semiconductor laser device includes a semiconductor multilayer structure | 2011-03-10 |
20110058585 | GROUP-III NITRIDE SEMICONDUCTOR LASER DEVICE, AND METHOD OF FABRICATING GROUP-III NITRIDE SEMICONDUCTOR LASER DEVICE - A group-III nitride semiconductor laser device comprises a laser structure including a support base and a semiconductor region, and an electrode provided on the semiconductor region of the laser structure. The support base comprises a hexagonal group-III nitride semiconductor and has a semipolar primary surface, and the semiconductor region is provided on the semipolar primary surface of the support base. The semiconductor region includes a first cladding layer of a first conductivity type gallium nitride-based semiconductor, a second cladding layer of a second conductivity type gallium nitride-based semiconductor, and an active layer. The first cladding layer, the second cladding layer, and the active layer are arranged along a normal axis to the semipolar primary surface. The active layer comprises a gallium nitride-based semiconductor layer. The c-axis of the hexagonal group-III nitride semiconductor of the support base tilts at a finite angle ALPHA with respect to a normal axis toward an a-axis of the hexagonal group-III nitride semiconductor. The laser structure includes first and second fractured faces intersecting with an a-n plane defined by the normal axis and the a-axis of the hexagonal group-III nitride semiconductor. The laser cavity of the group-III nitride semiconductor laser device includes the first and second fractured faces. The laser structure includes first and second surfaces and the first surface is opposite to the second surface, and each of the first and second fractured faces extends from an edge of the first surface to an edge of the second surface. | 2011-03-10 |
20110058586 | NITRIDE SEMICONDUCTOR LASER - A projection/recess structure is formed on a base substrate, and a layered structure of a nitride semiconductor laser is formed on the projection/recess structure. InGaN used for an active layer has an In intake efficiency and a growth rate that greatly vary with the plane direction. By use of this characteristic, an active layer structure low in In content and small in well layer thickness can be formed at a light-outgoing end facet by one-time crystal growth, and thus the transition wavelength of the active layer near the light-outgoing end facet can be shortened. As a result, since optical damage due to light absorption at the light-outgoing end facet can be greatly reduced, a nitride semiconductor laser capable of performing high light-output operation can be implemented. | 2011-03-10 |
20110058587 | VERTICAL CAVITY SURFACE EMITTING LASER, VERTICAL CAVITY SURFACE EMITTING LASER DEVICE, OPTICAL TRANSMISSION DEVICE, AND INFORMATION PROCESSING APPARATUS - A vertical cavity surface emitting laser that includes: a substrate; a first semiconductor multilayer reflector that is a first conductive type and formed on the substrate; an active region formed on the first semiconductor multilayer reflector; a second semiconductor multilayer reflector that is a second conductive type and formed on the active region; a current narrowing layer that is located between the first and second semiconductor multilayer reflectors, and in that a conductive region which has anisotropy in a long side direction and a short side direction within the surface which is parallel to a principal surface of the substrate is formed; and a convex lens member that is formed in a beam window which emits a light on the second multilayer reflector, and that has anisotropy in a long side direction and a short side direction within a surface which is parallel to the principal surface of the substrate. | 2011-03-10 |
20110058588 | Drive laser for EUV light source - A device is described herein which may comprise an oscillator having an oscillator cavity length, L | 2011-03-10 |
20110058589 | HIGH TEMPERATURE INDUSTRIAL FURNACE ROOF SYSTEM - A high temperature industrial furnace roof system having first and second spaced apart hanger brick rows with a filler row disposed therebetween and a cable system including a plurality of electrical cables. The filler row includes a plurality of filler elements having at least one removable heating module with a heat source. The cable system operatively connects the heat source with a power source and permits the removable heating module to be removed from the respective filler element while the respective heat source remains operatively connected with the power source. | 2011-03-10 |
20110058590 | DEVICE FOR SPATIALLY RESOLVED TEMPERATURE MEASUREMENT - Apparatus for a spatially resolved temperature measurement, with at least one optical fiber ( | 2011-03-10 |
20110058591 | FREQUENCY SELECTIVE MODULATING APPARATUS AND METHOD USING RE-SPREADING CODE - A frequency selective modulation apparatus and method using re-spreading codes are disclosed. The frequency selective modulation apparatus includes: a serial-to-parallel converter receiving transmission data and performing serial-to-parallel conversion on the transmission data at a pre-set ratio; one or more sub-frequency selective spreaders selecting one spreading code by using data bits received from the serial-to-parallel converter; a majority value selection unit selecting a majority value from one or more spreading codes which have been selected by each of the one or more of the sub-frequency selective spreaders; and a first XOR logic circuit XORing an output of the majority value selection unit and a re-spreading code Wn to re-spread a frequency selective baseband to a frequency selective passband. | 2011-03-10 |
20110058592 | MULTICARRIER CDMA TRANSMISSION SYSTEM AND TRANSMISSION METHOD - In multicarrier transmission for multiplying transmit data individually by each code constituting orthogonal codes and transmitting each result of multiplication by a prescribed subcarrier, a plurality of different subcarriers are assigned exclusively to each user and each user performs multicarrier transmission of the transmit data by the subcarriers assigned. Further, a base station assigns a plurality of different subcarriers to each user exclusively, applies beam-forming processing on a per-user basis and performs multicarrier transmission of transmit data to each user by the subcarriers assigned. | 2011-03-10 |
20110058593 | Programmable Universal Asynchronous Receiver/Transmitter (UART) Based on Reference Frequency - In one embodiment, a method includes determining pre-calculated information. The pre-calculated information is used to determine a counter pattern for a reference clock. The counter pattern include, for at least one data bit, a number of reference clock cycles of the reference clock that is determined based on a frequency of the reference clock and a data rate of a serial data stream. The serial data stream is sampled to read a plurality of data bits based on the counter pattern. A data bit is sampled based on the number of reference clock cycles associated with the data bit. | 2011-03-10 |
20110058594 | COMMUNICATION METHOD AND POWER LINE COMMUNICATION TERMINAL - In power line communication using a power line as a transmission path, a transmitter terminal transmits a communication signal while changing a phase parameter of the communication signal transmitted, in the continuous communication signal, according to an impedance variation amount on the transmission path. In this communication method, the communication signal is received stably with no variation in the phase parameter of the communication signal in response to the impedance variation amount on the transmission path, permitting high-speed data communication with reduced communication error. | 2011-03-10 |
20110058595 | Method and Apparatus for Detecting In-band Interference in a Data Communications Modem - A method and apparatus for detection and analysis of interference and noise in a received signal within a bandwidth of a predetermined communication channel. A receiver receives a modulated signal and generates a demodulated digital baseband signal. A digital quadrature demodulator receives the digital baseband data signal and demodulates the digital baseband data signal to generate complex digital signal soft-symbol decisions at its output at the received symbol rate. A processor interface in communication with the digital quadrature demodulator and the controller transfers data between the digital quadrature demodulator and the controller. The controller reconstructs a transmitted signal from the transferred data and subtracts the transmitted signal from the modulated signal to generate a third signal representative of noise and interference underlying the transmitted signal within a predetermined communications channel containing the transmitted signal. The modulated and third signals are displayed on a computer screen or a printout for analytical purposes. | 2011-03-10 |
20110058596 | Multi-Channel Equalization to Compensate for Impairments Introduced by Interleaved Devices - A system includes a time-interleaved device. An equalizer effectively can apply different equalization to different interleaved channels. For convenience, these equalizers will be referred to as multi-channel equalizers. In one aspect, an apparatus includes an interleaved device having M interleaved channels, and a multi-channel equalizer coupled to the interleaved device. The multi-channel equalizer is capable of applying a different equalization to different interleaved channels, thus compensating for channel-dependent impairments. | 2011-03-10 |
20110058597 | EQUALISATION PROCESSING - A method and apparatus for processing a signal in a wireless communication system. The method comprises: receiving a signal at a receiver over a wireless channel; sampling the signal to produce a plurality of signal samples; and supplying the samples to an equaliser implemented in software running on a processor of the receiver, the equaliser being configured to process the samples using at least one equaliser time period having a nominal length. The method further comprises dynamically determining one or more characteristics of the channel; in dependence on the determined channel characteristics, dynamically selecting between a first operational state of the equaliser in which the nominal length is used and a second operational state of the equaliser in which an alternative length is used in place of the nominal length; and processing the samples in the equaliser using the determined equaliser time period length. | 2011-03-10 |
20110058598 | GENERALIZED DECISION FEEDBACK EQUALIZER PRECODER WITH INPUT COVARIANCE MATRIX CALCULATION FOR MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT WIRELESS TRANSMISSION SYSTEMS - To realize a GDFE precoder for multi-user MIMO systems, which significantly reduces the computational cost while resulting in no capacity loss, one method comprises computing an effective UL channel matrix H | 2011-03-10 |