39th week of 2011 patent applcation highlights part 37 |
Patent application number | Title | Published |
20110235577 | CONTENT IDENTIFICATION AND RETRIEVAL BASED ON DEVICE COMPONENT PROXIMITY - The invention provides proximity based content retrieval. A proximity element is provided for each of a plurality of components associated with a primary device. Identification information of each proximity element for an associated particular proximity space is communicated to a mobile wireless device. Upon the mobile wireless device being located within the associated particular proximity space of a particular proximity element, the mobile device receives associated identification information of the particular proximity element. The mobile device retrieves video content based on the associated identification information. | 2011-09-29 |
20110235578 | MULTIPATH COMMUNICATIONS FOR MOBILE NODE INTERFACES - Methods and apparatuses are provided that facilitate establishing multiple sub-connections between a correspondent node (CN) and a mobile node (MN), through a home agent (HA) to provide multipath functionality over multiple MN interfaces. The MN can connect to multiple networks using multiple MN interfaces, receiving care-of addresses (CoA) at each network. The MN can establish multiple connections to the CN specifying, to the HA, a different 5-tuple (or n-tuple) for each connection. The different 5-tuple can include a different port number related to a home address assigned by the HA. Also, bindings at the HA can be updated to associate the different 5-tuple with a CoA of one of the multiple MN interfaces. In this regard, the HA can route packets to the MN from the CN based at least in part on determining the HoA port number in the packet associated with the CoA of an MN interface. | 2011-09-29 |
20110235579 | Method And Apparatus For Home Network Access Using A Remote Mobile Device - A manner of facilitating access to a home network having an HA by a remote mobile device, such as a smartphone, having an FA that is or may be registered with the HA. A secure tunnel or similar communication path is established between the FA and an HA of a home network, and an SSR (specialized service request) is transmitted to the mobile network though which the mobile device is communicating, providing advance notification that a bandwidth intensive operation is anticipated so that the mobile network may take preparatory action. The SSR is preferably sent by the FA after a tunnel to the HA has been established, but prior to the user selecting a particular bandwidth intensive application for execution. The user may be queried in advance to determine which operation might be anticipated. | 2011-09-29 |
20110235580 | MOBILE COMMUNICATION METHOD AND MOBILE STATION - A mobile communication method according to the present invention includes the steps of: establishing a first radio link between the “LTE-AS” and the eNB in response to the “Service Request” received from the “EMM”; transmitting, from the “UMTS-AS” to the “MM/GMM”, the “reconnect request”, after the completion of the switching process from the mobile communication system of the LTE scheme to the mobile communication system of the UMTS scheme, when the “LTE-AS” detects RLF within a first predetermined period after receiving the switching command instructing performance of the switching process; and not transmitting, from the “MM/GMM” to the “UMTS-AS”, the “Service Request” responding to the “reconnect request”, when the mobile station UE has not performed a packet communication in the mobile communication system of the LTE scheme before a start of the switching process. | 2011-09-29 |
20110235581 | POST ACCESS POLICING IN A MOBILE COMMUNICATION NETWORK - When a wireless terminal attaches to the network, the wireless terminal is assigned a temporary identifier. Different sets of access restrictions are associated with different blocks of temporary identifiers. When a message and a corresponding temporary identifier is received by the network from a requesting wireless terminal, an access controller identifies the block to which the assigned temporary identifier belongs and determines the access restrictions associated with that block. | 2011-09-29 |
20110235582 | SUBFRAME DEPENDENT TRANSMISSION POWER CONTROL FOR INTERFERENCE MANAGEMENT - According to certain aspects, transmission power control may be applied to uplink transmissions in a subframe-type dependent manner as part of an interference management scheme. | 2011-09-29 |
20110235583 | METHOD AND APPARATUS FOR DOWNLOADING DATA IN MOBILE COMMUNICATION SYSTEM - A method and apparatus for downloading data in a mobile communication system are provided. A method of a mobile terminal for downloading data in a mobile communication system includes receiving a transmit (TX) data existence indication message from a server, determining an access network according to an amount of TX data included in the received TX data existence indication message, performing a data connection through the access network, and receiving the data from the server. | 2011-09-29 |
20110235584 | METHOD AND APPARATUS FOR RELIABLE TRANSMISSION OF CONTROL INFORMATION IN A WIRELESS COMMUNICATION NETWORK - Techniques for reliably transmitting and receiving control information in a wireless network are described. A cell may typically send control information on a control channel and associated data (e.g., system information) on a data channel in the same subframe. This subframe may have strong interference from other cells. For cross-subframe signaling, the cell may transmit the control information in a first subframe and the associated data in a second subframe. The first subframe may be a usable subframe for the cell and may have less interference from other cells. A UE may not know the location of the first subframe and may perform window-based decoding. The UE may decode the control channel in at least one subframe within a decoding window covering the first subframe to obtain the control information. The UE may then decode the data channel in the second subframe based on the control information to obtain the data. | 2011-09-29 |
20110235585 | APPARATUS AND METHOD FOR TRANSMITTING MESSAGE IN WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for transmitting a message in a portable terminal are provided. The method includes determining message contents to send to at least one recipient terminal, determining a number of recipient terminals, when transmitting the message to at least two recipient terminals, determining identification information of at least two recipient terminals to which the message is transmitted, and transmitting a message which includes the identification information of the at least two recipient terminals and the message contents to the at least two recipient terminals. | 2011-09-29 |
20110235586 | METHOD AND APPARATUS FOR CONTROLLING RETRANSMISSION ON UPLINK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MIMO - A method is provided for controlling retransmission by a User Equipment (UE) in a wireless communication system supporting Multiple Input Multiple Output (MIMO) technology. A plurality of transport blocks is initially transmitted to a Node B. A retransmission request for at least one transport block among the plurality of transport blocks is received from the Node B. A precoding matrix for retransmission of the at least one transport block is determined based on the retransmission request for the at least one transport block. The at least one transport block is retransmitted using the determined precoding matrix. | 2011-09-29 |
20110235587 | Apparatuses and Methods for Coordinating Operations of Multiple Wireless Communications Modules with Multiple Subscriber Numbers - A wireless communications device is provided with a plurality of card slots, a first wireless communications module, and a second wireless communications module. The card slots are inserted with at least one subscriber identity card. The first wireless communications module performs wireless transceiving in compliance with at least a first wireless technology. The second wireless communications module determines at least a first subscriber number and a second subscriber number from the at least one subscriber identity card, and enables the wireless transceiving of the first wireless communications module using the first subscriber number. Also, the second wireless communications module performs wireless transceiving in compliance with at least a second wireless technology using the second subscriber number. | 2011-09-29 |
20110235588 | METHOD, DEVICE, AND MULTI-ADDRESS SPACE MOBILE NETWORK FOR SENDING DATA AND FORWARDING DATA - A method for forwarding data is provided. A first host belongs to a first locator domain (LD). The first LD belongs to a first Internet service provider (ISP) and a second ISP. A second host belongs to a second LD. The ISP to which each LD belongs allocates an LD identifier (LD ID) to the LD, respectively. The method includes: receiving a first data packet sent to the second host by the first host; selecting one LD ID of the first LD as a source LD ID according to a preset traffic engineering (TE) policy, so as to obtain a second data packet corresponding to the first data packet, and selecting an ISP network corresponding to the source LD ID to forward the second data packet. | 2011-09-29 |
20110235589 | Communication System for Voice-Over Internet Protocol Using License-Free Frequencies and a Mobile Telephone - In a communication system comprising—at least one mobile telephone ( | 2011-09-29 |
20110235590 | FREQUENCY CORRECTION IN MULTI-CARRIER COMMUNICATION SYSTEM - Methods and systems for correction of frequency errors in multi-carrier communication systems. The composite frequency error associated with the downlink signals are used to infer or derive the composite frequency error associated with the uplink signals, which are used to pre-compensate the uplink signals. Special signal components are transmitted by multiple base stations to facilitate frequency-error estimation and other system control functionalities at a mobile device. The mobile device carries out temporal, spatial, or spatial-temporal processing of the composite frequency errors associated with one or more base stations to determine the clock frequency error and the Doppler shift with respect to its serving base station. | 2011-09-29 |
20110235591 | BAND STEERING FOR MULTI-BAND WIRELESS CLIENTS - Band steering for multi-band wireless clients. In a wireless digital network having at least one central controller and a plurality of access nodes connected to the central controller, and wherein some of the access nodes support a preferred wireless band and at least one non-preferred wireless band, the central controller identifies wireless client devices capable of multi-band operation, and encourages them to connect to the preferred wireless band. Client devices may be identified as multi-band capable by tracking probe requests. The central controller keeps a list of multi-band capable clients, for example in a database. This information is provided to other central controllers, and to access nodes attached to the central controller. Multi-band capable clients are encouraged to connect on the preferred wireless band for example by having the access nodes not respond to probe requests on the non-preferred wireless bands. Connections made on the non-preferred wireless bands may be moved to the preferred wireless band. | 2011-09-29 |
20110235592 | NETWORK RESOURCE LEASING - Techniques for allowing network terminals to lease resources from one another. In an exemplary embodiment, an owner terminal determines the availability of resources (locally available or remotely accessible) to share with other terminals. The owner terminal establishes service and price level terms for sharing its resource, and advertises those terms to other terminals. A user terminal determines its own resource requirements, and searches a network for one or more owner terminals offering the desired resource. An owner terminal and a user terminal negotiate on the terms for use of an identified resource, and the owner terminal leases the resource to the user terminal. Applications include a virtual data center for leasing file storage space, network traffic bandwidth leasing to devices such as mobile phones, ad hoc distributed computing architectures, and third-party operating system (OS) support schemes. | 2011-09-29 |
20110235593 | Techniques for efficient acknowledgement for UL MU mimo and uplink OFDMA in wireless networks - An embodiment of the present invention provides a method of supporting acknowledgement transmissions for Uplink (UL) Multi-user Multiple Input Multiple Output (MU MIMO) in wireless networks, comprising, enabling an AP operable in the wireless network to send back acknowledgements to different wireless stations (STAs) in communication with said AP either sequentially or simultaneously by defining a new block ack (BAs) type for multiple STAs. | 2011-09-29 |
20110235594 | MOBILE TERMINAL AND METHOD FOR RETRIEVING MULTIMEDIA CONTENT - A mobile terminal connects to a wireless access point (AP) connected to a web server to retrieve and display a list of uniform resource locators (URLs) corresponding to types of multimedia content stored in a multimedia server. Each URL includes a channel identifier allocated to a corresponding type of the multimedia content. After receiving a selection of one URL, the mobile terminal parses the selected URL to retrieve a channel identifier, and automatically switches to a channel corresponding to the channel identifier. The mobile terminal connects to a wireless AP on the channel to retrieve a corresponding type of the multimedia content from the multimedia server. | 2011-09-29 |
20110235595 | BREAKOUT GATEWAY FOR MOBILE DATA TRAFFIC - In general, the invention is directed to techniques for breaking out mobile data traffic from a mobile service provider network to a packet data network. For example, as described herein, a breakout gateway device (BGW) receives a first service request and data traffic for a data session associated with the requested service from a mobile device in a radio access network, wherein the first service request is addressed to a serving node of a mobile core network of the mobile service provider network, and wherein the data traffic is destined for the PDN. A control packet analysis module forwards the first service request from the breakout gateway device to the serving node. A breakout module of the BGW bypasses the serving node by sending the data traffic from the breakout gateway device to the PDN on a data path from the radio access network to the PDN. | 2011-09-29 |
20110235596 | UPLINK SDMA TRANSMIT OPPORTUNITY SCHEDULING - Certain aspects of the present disclosure present medium access control (MAC) protocols for uplink Spatial Division Multiple Access (SDMA) transmissions by one or more stations (STAs). An access point (AP) may receive one or more requests for uplink SDMA transmission from a plurality of stations. The access point may schedule the transmissions by sending a signal to the stations to notify them of the parameters of the uplink SDMA transmissions such as start time, duration of the transmission, spatial streams assigned to each station, and so on. | 2011-09-29 |
20110235597 | REFERENCE SIGNALS FOR MULTI-USER MIMO COMMUNICATION - Methods and apparatuses are provided that facilitate generating sequences for transmitting reference signals (RS) based at least in part on a cell identifier or other parameters common for a plurality of cells. Where the plurality of cells provide similar joint uplink resources to a device in multi-user multiple-input multiple-output (MIMO), the device can transmit a signal to the plurality of cells over the joint uplink resources. For RSs transmitted according to a sequence generated based on a cell specific identifier or other parameters, the device can utilize a cell identifier, or other parameters, common to the plurality of cells such that the plurality of cells can all decode the RSs. In this regard as well, the plurality of cells can each receive or generate the common cell identifier or other parameters to properly decode the RSs. | 2011-09-29 |
20110235598 | SYSTEMS AND METHODS FOR MITIGATING INTERCELL INTERFERENCE BY COORDINATED SCHEDULING AMONGST NEIGHBORING CELLS - A networked computing system capable of mitigating interference amongst neighboring base stations. The networked computing system includes multiple base stations, user equipment, a network resource controller, and a data communications network facilitating data communications amongst all network devices. A serving base station is configured to acquire interference metrics from its local user equipment and then generate an aggregate representation from the acquired interference metrics. The network resource controller is configured to acquire the aggregate representation, determine an interference reduction associated with a neighbor base station for each of the user equipment serviced by the serving base station, determine a power schedule for the first base station based on the aggregate representation and the determined interference reduction, and then modify a power schedule for the neighbor base station based on the determined interference reduction. | 2011-09-29 |
20110235599 | METHOD AND SYSTEM FOR UPLINK ACKNOWLEDGEMENT SIGNALING IN CARRIER-AGGREGATED WIRELESS COMMUNICATION SYSTEMS - A base station includes a transmit path circuitry to transmit DL grant, data streams, and a control signal to configure a number of uplink transmit antenna ports PUCCH to a subscriber station. The base station also includes a receive path circuitry to receive ACK/NACK modulation in response to the data streams. If the subscriber station is configured to transmit ACK/NACK using one uplink transmit antenna port and channel selection with PUCCH format | 2011-09-29 |
20110235600 | METHOD AND SYSTEM FOR USING RESOURCES ALLOCATED TO A WIRELESS NETWORK IN A COEXISTING WIRELESS NETWORK - A wireless device includes a first wireless transceiver and a second wireless transceiver. The first wireless transceiver is configured to communicate via a first wireless network, and includes a first scheduler configured to schedule communication via the first wireless network. The second wireless transceiver is configured to communicate via a second wireless network. The second wireless transceiver includes a second scheduler. The second scheduler is configured to identify a resource allocated to the second wireless transceiver for a transaction via the second wireless network, to identify a portion of the resource used by the second wireless transceiver for the transaction, and to transfer information defining the portion to the first transceiver. The first scheduler is also configured to schedule, based on the information transferred by the second scheduler, the first transceiver to communicate via the first wireless network using the resource allocated to the second wireless transceiver for the transaction. | 2011-09-29 |
20110235601 | PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH) PROTECTION - According to certain aspects, resource blocks used for physical downlink shared channel (PDSCH) transmissions may be allocated in a manner to manage interference in neighboring cells. According to certain aspects, one or more guard RBs may be utilized when transmitting PDSCH in a first cell an effort to reduce interference by transmissions in a second cell. | 2011-09-29 |
20110235602 | SUBFRAME DEPENDENT PHYSICAL UPLINK CONTROL CHANNEL (PUCCH) REGION DESIGN - According to certain aspects, resources allocated to a user equipment (UE) for physical uplink control channel (PUCCH) transmissions may be determined in a subframe-type dependent manner. As a result, PUCCH regions for different subframes may vary based on the subframe types. | 2011-09-29 |
20110235603 | METHOD, NETWORK DEVICE AND SYSTEM FOR DETERMINING RESOURCE MAPPING IN COORDINATED MULTI-POINT TRANSMISSION - A method, a network device, and a system for determining resource mapping in CoMP transmission are disclosed. The method includes: the cooperative cells that perform CoMP transmission for a UE negotiate a mapping rule used by the cooperative cells when the status of the CoMP transmission of the UE changes, where the mapping rule includes the number of and position of OFDM symbols allocated to a PDCCH domain and/or a data channel domain; and the negotiated mapping rule is notified to the UE. In this embodiment, before the downlink signals are transmitted, the mapping rule used by each cooperative cell for CoMP transmission is negotiated between the cooperative cells, and therefore, the UE can accurately receive the signal sent by multiple cooperative cells and the performance of CoMP transmission in the system is improved. | 2011-09-29 |
20110235604 | COMMUNICATION SYSTEM, COMMUNICATION METHOD, BASE STATION, MOBILE STATION, AND PROGRAM - Provided is a technique for efficiently selecting access schemes for use in communications. This invention includes an identifying means that identifies, from station-on-the-other-end candidate information, which is control information in which information related to an access scheme corresponding to each of a plurality of stations-on-the-other-end of communication is described, and from information related to an access scheme corresponding to the local station, access schemes beforehand one of which can be used in communication with a communication partner station; and a selecting means that selects, as the access scheme to be used in data communication with a communication partner station, one of the identified access schemes when the data communication is started. | 2011-09-29 |
20110235605 | RADIO RESOURCE ALLOCATION METHOD AND DEVICE OF HENB IN EVOLVED PACKET SYSTEM - A session-adaptive radio resource allocation device and method for an EPS is provided. A resource allocation method for a wireless communication includes transmitting, at a Home evolved Node B (HeNB) received a downlink packet destined to a User Equipment (UE) in idle mode, a paging message including a local indicator to the UE; transmitting a service request message including the local indicator from the UE to a Mobility Management Entity (MME); transmitting a Initial Context Setup (ICS) message including an uplink Tunnel Endpoint Identifier (TEID) from the MME to the HeNB; and establishing a radio bearer for a local breakout session between the HeNB and UE and a radio bearer corresponding to an Evolved Packet System (EPS) bearer context of an internal Serving Gateway/Packet Data Network Gateway (SGW/PGW) of the HeNB using the TEID). | 2011-09-29 |
20110235606 | METHOD FOR RESOURCE ALLOCATION, RADIO COMMUNICATION SYSTEM, BASE STATION, AND MOBILE STATION THEREOF - The invention relates to a method for resource allocation in a radio communication system (RCS). The radio communication system (RCS) comprises a base station (BS) and at least one mobile station (MS | 2011-09-29 |
20110235607 | Method and Communication Network Element for Transmitting Reference Signals - A method of transmitting reference signals in a communication network from a first network element to a second network element is provided, wherein the method includes transmitting first type of reference signals using a first resource of a frame wherein the first type of reference signals are related to a first communication system, and transmitting second type of reference signals using a second resource of the frame wherein the second type of reference signals are related to a second communication system. | 2011-09-29 |
20110235608 | METHOD FOR TRANSMITTING AND RECEIVING A COMP REFERENCE SIGNAL IN A MULTI-CELL ENVIRONMENT - Disclosed is a channel estimation method using a cooperative multi-point (CoMP) reference signal in a multi-cell environment. The method comprises a CoMP reference signal receiving step of enabling a terminal to receive, from each of the cells that perform a CoMP operation, a CoMP reference signal where an orthogonal code is applied to each of the cells; a channel estimation step of enabling the terminal to estimate, using said CoMP reference signal, channels of each of the cells which perform said CoMP operation; and a channel status feedback information transmitting step of enabling the terminal to transmit channel status feedback information to each of the cells. | 2011-09-29 |
20110235609 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN A MULTI-CARRIER SYSTEM - A method of a user equipment performing random access in a multi-carrier system comprises receiving mapping information through downlink component carriers, sending a random access preamble through uplink component carriers, and receiving a random access response through a specific downlink component carriers determined based on the mapping information. | 2011-09-29 |
20110235610 | ADAPTIVE NETWORK TO DYNAMICALLY ACCOUNT FOR HIDDEN NODES - One embodiment of the present invention relates to a network element that is configured to be associated with a network having a number of nodes. A proxy node is configured to distinguish between a some signals received from a master node and other signals received from at least one hidden node, where the at least one hidden node is unable to bi-directionally directly communicate with the master at a given time. The proxy node is further configured to relay at least one signal between the master node and the hidden node to facilitate addition of the hidden node to the network via the master node. Other methods and devices are also disclosed. | 2011-09-29 |
20110235611 | COMMUNICATING CONTROL INFORMATION IN MOBILE COMMUNICATION SYSTEM - The present invention relates to communicating control information in a mobile communication system, by which new control information can be transmitted more quickly. The present invention comprises transmitting a first data block comprising control information for transmitting first data when no resources for the transmission of the first data are available, receiving second data from an upper layer to be transmitted, wherein the second data has a higher priority than the first data, and transmitting a second data block comprising updated control information for transmitting the first and second data when no resources for the transmission of the first and second data are available. | 2011-09-29 |
20110235612 | NETWORK APPARATUS, COMMUNICATION APPARATUS, COMMUNICATION CONTROL METHOD, AND COMMUNICATION CONTROL SYSTEM - A network station stores therein a frame scheduling table including a plurality of pieces of scheduling information obtained by scheduling, in advance, transmission/reception timing of wireless frames that are transmitted/received by wireless communication terminals each of which is configured so as to implement a plurality of wireless communication methods, while using a wireless communication method corresponding to the network side and while using a wireless communication method corresponding to the local side. When the network station receives a notification indicating that a radio wave interference is detected, from any of the wireless communication terminals managed by the network station, the network station changes the frame scheduling information currently assigned to the wireless communication terminal being the transmission source of the notification indicating that the radio wave interference is detected. | 2011-09-29 |
20110235613 | Cellular Communication System and Method for Broadcast Communication - A cellular communication system ( | 2011-09-29 |
20110235614 | TECHNIQUE FOR AT COMMAND HANDLING IN RELATION TO AN EPS PACKET DOMAIN - A method and system of facilitating the use of AT commands specified for a General Packet Radio Service (GPRS) packet domain in relation to an Evolved Packet System (EPS) packet domain is provided. An embodiment of the present invention comprises defining, in response to an AT command directed to the definition of a secondary Packet Data Protocol (PDP) context, an EPS Service Data Flow (SDF) on the basis of the secondary PDP context. | 2011-09-29 |
20110235615 | MANAGEMENT OF WLAN AND WWAN COMMUNICATION SERVICES TO A MULTI-MODE WIRELESS COMMUNICATION DEVICE - A mesh network communication system includes a plurality of access points connected to a wireless local area network (WLAN) controller where at least one of the plurality access points is a detection access point (DAP) that receives reverse link (RL) wireless wide area network (WWAN) signals transmitted from a multi-mode wireless communication device. Based on an intercepted RL WWAN signal, the DAP forwards reverse link (RL) information to the WLAN controller. Based on the RL information, the WLAN controller generates and sends, to the WWAN communication system, a device to access point association list (device-AP association list) comprising one or more device identifiers associated with one or more target access point identifier. The device identifier uniquely identifies a multi-mode wireless communication device within a maximum proximity of a target access point identified by the target access point identifier. The WWAN system applies the device-AP association list to efficiently manage handoffs from the WWAN system to access points in the mesh network. | 2011-09-29 |
20110235616 | HANDOFF BETWEEN BASE STATIONS OF DIFFERENT PROTOCOL REVISIONS IN A CDMA SYSTEM - Techniques for supporting handoff of a terminal between base stations of different protocol revisions (P_REVs) in a CDMA system. One technique includes performing a handoff of the terminal from a first base station to a second base station. The handoff is performed while the terminal is in an active call using a first service configuration with the first base station. The first base station supports a first protocol revision and the second base station supports a second protocol revision that is later than the first protocol revision. A first message is sent indicative of a change in packet zone. A request is received to originate a new call with a second service configuration. The new call is maintained with the second service configuration between the terminal and the second base station. | 2011-09-29 |
20110235617 | CENTRALIZED RADIO NETWORK CONTROLLER - In a radio access network, novel systems and methods reduce processing delay, and improve integration with IP networks, by separating user data from connection management and control data at a Node B or at a base station. The user data are routed to an IP (Internet Protocol) switch, whereas the connection management and control data are routed to a centralized radio network controller (RNC). Pursuant to a second embodiment of the invention, a centralized RNC provides improved radio resource management (RRM) functionality by handing all connection management and control data for a plurality of Node B's, thereby simplifying the switching of user data throughout the radio access network. Pursuant to a third embodiment of the invention, a smart IP switch is equipped to switch user data without core network (CN) involvement. Downlink user data are switched independently of uplink user data. | 2011-09-29 |
20110235618 | METHOD AND SYSTEM FOR SOFT HANDOFF IN MOBILE BROADBAND SYSTEMS - The present invention provides a method and system for facilitating efficient handoff and data throughput in mobile broadband communication systems. Methods implemented by a system constructed in accordance with the principles of the present invention include selectively enabled soft handoff, performing Layer 2 bearer functions at the base station and using the mobile device to coordinate soft handoff and interference avoidance without the need for a centralized coordination function. | 2011-09-29 |
20110235619 | ENHANCED FREQUENCY DIVERSITY TECHNIQUE FOR SYSTEMS WITH CARRIER AGGREGATION - A technique is provided to interleave data and control signals across a plurality of component carriers to achieve frequency diversity in conjunction with carrier aggregation. | 2011-09-29 |
20110235620 | METHOD AND APPARATUS OF TRANSMITTING CONTROL INFORMATION - A wireless communication system is disclosed herein. More specifically, a method of transmitting control information from a user equipment in a wireless communication system is disclosed, wherein the method includes receiving a first transmission timing information for transmitting a first control information associated with one or more first downlink component carriers from a base station; determining a second transmission timing information for transmitting a second control information associated with one or more second downlink component carrier by using the first transmission timing information and an additional transmission timing information; and transmitting control information on the one or more second downlink component carriers in dependence upon the second transmission timing information to the base station. | 2011-09-29 |
20110235621 | SYNCHRONIZED ACTIVITY BITMAP GENERATION METHOD FOR CO-LOCATED COEXISTENCE (CLC) DEVICES - A mobile communications device is provided. A first radio module communicates with a communications device in compliance with a first protocol. A second radio module communicates with a base station in compliance with a second protocol. A CLC radio manager receives a traffic pattern from the first radio module indicating a first traffic allocation for the first radio module, obtains timing information of the base station, obtains a native reference clock from a clock source, converts values of the traffic pattern into the native reference clock counts, aligns the converted traffic pattern with the timing information of the base station, generates one or more CLC bitmaps for the first radio module by converting the aligned traffic pattern into a plurality of WiMAX frames or sub-frames of the timing information, and transmits the generated CLC bitmaps to the base station to recommend a second traffic allocation of the frames or sub-frames. | 2011-09-29 |
20110235622 | METHOD AND APPARATUS TO ADJUST RECEIVED SIGNAL - A wireless communication device, a wireless communication system and a method to adjust transmitted signals constellation in a maximum likelihood multiple-input-multiple-output receiver by transmitting an EVM deviation value. The EVM deviation value may be added to a pre-stored error value at the receiver. | 2011-09-29 |
20110235623 | System and Method for Estimating the Probability of Movement of Access Points in a WLAN-based Positioning System - Methods of and systems for estimating the probability of movement of access points in a WLAN-based positioning system are provided. Disclosed are methods to quantify the probability that a particular location estimate of a mobile device made by a Wi-Fi based positioning system is correct to within an arbitrary accuracy. Implementations use observed access point cluster size, age information for access point location determination, and/or the probability that one or more access points detected by the mobile device have relocated based on historic information about the movement of a collection of access points to make the probability determinations. | 2011-09-29 |
20110235624 | Handling Virtual Private Network Connections over a Wireless Local Area Network - A wireless local area network ‘WLAN’ client device has one or more virtual private network ‘VPN’ profiles defined therein. In response to the WLAN client device connecting to a WLAN, a user of the WLAN client device is able to indicate whether to attempt to establish a VPN connection over the WLAN. | 2011-09-29 |
20110235625 | COMMUNICATION TERMINAL AND RELAY STATION USING LOCAL WIRELESS COMMUNICATION AND SERVICE PROVIDING METHOD THEREOF - A device and method for providing a communication service using local wireless communication are provided. A communication terminal for servicing wireless communication with a relay station includes a local wireless communication unit for transmitting and receiving an audio signal for a Voice over Internet Protocol (VoIP) service through wireless communication with the relay station, for converting a radio signal received from the relay station into a digital audio signal to output the digital audio signal, and for converting an input digital audio signal into a radio signal to transmit the radio signal to the relay station; and an audio processor for converting the digital audio signal received from the local wireless communication unit into an analog audio signal to output the analog audio signal, and for converting an input analog audio signal into a digital audio signal to deliver the digital audio signal to the local wireless communication unit. By providing a VoIP service using local wireless communication, coverage of the terminal may be expanded, contributing to a reduction in system complexity and power consumption of a communication system providing the VoIP service. | 2011-09-29 |
20110235626 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN MULTI-ANTENNA SYSTEM - A method and apparatus for transmitting control information by an enhanced Node B (eNB) in a wireless communication system supporting Multiple-Input Multiple-Output (MIMO) technology is provided, in which at least one parameter required for initial transmission of User Equipment (UE) is transmitted through a Packet Data Control Channel (PDCCH), at least two codewords are received from the UE and then decoded, one of a plurality of indicators, related to an operation of the UE, is determined based on decoding results of at least two codewords, the determined indicator is transmitted through a Physical Hybrid ARQ indicator channel (PHICH), and at least one codeword is received that the UE generates and transmits based on the parameter required for initial transmission of the UE and the indicator related to the operation of the UE. | 2011-09-29 |
20110235627 | METHOD AND SYSTEM FOR DYNAMIC INFORMATION EXCHANGE ON A MESH NETWORK IN A VEHICLE - A method and system for dynamic information exchange on a mesh network in a vehicle. The dynamic information exchange includes determining if a vehicle needs immediate repair. And if so, automatically determining a nearest repair facility and sending a message to the nearest repair facility indicating the vehicle will be arriving shortly. The message also includes a list of parts required to repair the vehicle. The dynamic information exchange on the mesh network also includes information about vehicle movement, including, an accident impact, theft or illness or injury to an operator of the vehicle. | 2011-09-29 |
20110235628 | SIGNALING FORMAT FOR WLANS - A method for wireless communication begins by determining whether legacy devices are within a proximal region of the wireless communication. The method continues, when at least one legacy device is within the proximal region, formatting a frame to include: a legacy preamble; a signal field; an extended preamble; at least one additional signal field; at least one service field; an inter frame gap; and a data field. | 2011-09-29 |
20110235629 | DYNAMIC A-MSDU ENABLING - A dynamic A-MSDU enabling method is disclosed. The method enables the recipient of an aggregate MAC service data unit (A-MSDU) under a block ACK agreement to reject the A-MSDU. The method thus distinguishes between A-MSDU outside of the block ACK agreement, which is mandatory, from A-MSDU under the block ACK agreement, which is optional. The method thus complies with the 802.11n specification while enabling the recipient to intelligently allocate memory during block ACK operations. | 2011-09-29 |
20110235630 | Techniques for prioritizing traffic - Techniques, at a subscriber station, for assigning packets to queues to prioritize real-time content over non-real time content. Packets with the same connection identifier are assigned to different priority queues. Block sequence numbers are assigned to packets after storage of packets to queues based on priority. | 2011-09-29 |
20110235631 | METHOD AND APPARATUS FOR AUTOMATIC VERIFICATION OF TELEPHONE NUMBER MAPPING - The present disclosure provides mechanisms for verification of mapping from one type of network address to another type of network address based on delivery of a one-time key over one type of the network and confirmation of its receipt over another type of network. A particular example of such mapping is mapping from a telephone number used in the PSTN or the like to a VoIP address such as a SIP URI. The mapping verification mechanisms can be provided without dependence on the records of past calls, manual calling, or the line information database in the PSTN system. Accordingly, a highly secure and efficient mapping verification mechanism is realized. | 2011-09-29 |
20110235632 | Method And Apparatus For Performing High-Quality Speech Communication Across Voice Over Internet Protocol (VoIP) Communications Networks - A communications terminal device and a method performed by a communications terminal device wherein packet data received from a Wireless Personal Area Network (WPAN) headset (such as, for example, a Bluetooth headset), which comprises an encoded audio signal, is directly convened by the terminal device to Internet Protocol (IP) packets which are transmitted across a Voice over Internet Protocol (VoIP) communications network, wherein speech encoding is not performed by the terminal device. Similarly, a communications terminal device and a method performed by a communications terminal device wherein IP packet data comprising an encoded audio signal is received from a VoIP communications network by the terminal device, and is directly converted by the terminal device to WPAN packets (such as, for example, Bluetooth protocol packets) which are transmitted to a WPAN headset (such as, for example, a Bluetooth headset), wherein speech decoding is not performed by the terminal device. | 2011-09-29 |
20110235633 | SYSTEMS AND METHODS FOR PROVIDING 9-1-1 SERVICES TO NOMADIC INTERNET TELEPHONY CALLERS - A system for facilitating 9-1-1 service delivery to internet telephony customers is provided. The system includes a server device for receiving a 9-1-1 call from a user device via a data network, where the 9-1-1 call are based on “9-1-1” digits dialed at the user device. The server device is configured to forward the received 9-1-1 call to an operator services interface operatively connected to the server device. | 2011-09-29 |
20110235634 | PACKET TRANSMITTING APPARATUS, PACKET RECEIVING APPARATUS, COMMUNICATION SYSTEM, AND PACKET COMMUNICATION METHOD - A packet transmitting apparatus | 2011-09-29 |
20110235635 | INTERNET PROTOCOL MULTICAST ON PASSIVE OPTICAL NETWORKS - A method for implementing multicast via a passive optical network (PON) may include receiving Internet group multicast protocol (IGMP) messages from a customer device. Multicast information associated with the IGMP messages is identified, wherein the multicast information includes at least multicast group information and customer identification information. The multicast information is stored in a multicast state table. Downstream layer | 2011-09-29 |
20110235636 | MOBILE AD HOC NETWORK AND METHOD FOR ESTABLISHING ROUTING THEREOF - A mobile ad hoc network (MANET) and a method for establishing a routing thereof are provided. The MANET includes a plurality of nodes. Each node determines a corresponding parent node according to a request packet resource of a request packet and a node resource of each node, so as to establish transmission routes between the nodes. Furthermore, needless transmission route is eliminated by the node belonging to a multicast group according to a group table of each node. | 2011-09-29 |
20110235637 | METHOD AND APPARATUS FOR IMPROVED NETWORK SWITCH MULTICAST FUNCTIONALITY - A method in a network switch for improved multicast functionality includes receiving information regarding for which group or groups of receivers content is intended, comparing the received information with stored information regarding which receivers belong to which group or groups of receivers to identify receivers belonging to the group or groups of receivers for which the content is intended and multi-casting the content to the identified receivers. In one embodiment, the group or groups of receivers are pre-established using a device group control protocol and are distinguished using a unique identifier for each group. In an alternate embodiment, the group or groups of receivers are established by the network switch. | 2011-09-29 |
20110235638 | METHOD AND SYSTEM FOR MULTICAST PATH SWITCHING, CORRESPONDING NETWORK AND COMPUTER PROGRAM PRODUCT - Multicast signals are transmitted from a source to user terminals via multicast paths through a set of nodes in a network. A first node, such as a ‘last-hop’ router, may send toward the source corresponding join and prune messages, the join message to establish a new multicast path from the source to a user terminal, and the prune message to discontinue the old multicast path from the source to the user terminal. The router sends the join message and the prune message over the new multicast path and the old multicast path. A second node located at the bifurcation of the new multicast path and the old multicast path detects the reception of both the join message and the prune message and steers, either directly or via delegated downstream nodes, the switch from the old multicast path over to the new multicast path without loss or undue duplication of packets sent from the source to the user terminal. | 2011-09-29 |
20110235639 | MECHANISM FOR ENABLING LAYER TWO HOST ADDRESSES TO BE SHIELDED FROM THE SWITCHES IN A NETWORK - Methods and systems for shielding layer two host addresses (e.g., MAC addresses) from a network are provided. A border component interposed between a network of switches and multiple local hosts receives from a first local host a first packet destined for a first destination host. The first local host has a first layer 2 (L2) address and a first layer 3 (L3) address associated therewith. The first packet includes the first L2 address as a source L2 address for the first packet, and includes the first L3 address as a source L3 address for the first packet. The border component shields the first L2 address from the network of switches by replacing the source L2 address for the first packet with a substitute L2 address associated with a communication channel of the border component before sending the first packet to the network of switches. | 2011-09-29 |
20110235640 | METHOD AND SYSTEM FOR FORWARDING AND SWITCHING OVER PROTECTED PATHS - In one embodiment, a method for telecommunications includes steps of receiving a first packet through a first port, and determining whether the first packet arrived over a protected path. If the first packet arrived over a protected path, the method also includes the steps of hashing a source address of the first packet, adding a first entry into a forwarding table, and adding a second entry into the forwarding table. The protected path is coupled to at least the first port and a second port. The first entry includes the result of hashing the packet, and an identification of the first port. The second entry includes the result of hashing the packet, and an identification of the second port. | 2011-09-29 |
20110235641 | COMMUNICATION APPARATUS, METHOD OF CONTROLLING THE COMMUNICATION APPARATUS,AND PROGRAM - In an apparatus that can be connected to an external apparatus to which multiple addresses are allocated over a network, a packet including certain identification information is transmitted to the external apparatus by using a first address as a destination. If a packet that is received includes the certain identification information, a source address of the received packet is extracted. If the extracted source address is a second address different from the first address, the second address is used as the destination in the subsequent transmission of a packet to the external apparatus. | 2011-09-29 |
20110235642 | PRESERVING THE ORDER OF PACKETS THROUGH A DEVICE - A network device includes one or more sprayers, multiple packet processors, and one or more desprayers. The sprayers receive packets on at least one incoming packet stream and distribute the packets according to a load balancing scheme that balances the number of bytes of packet data that is given to each of the packet processors. The packet processors receive the packets from the sprayers and process the packets to determine routing information for the packets. The desprayers receive the processed packets from the packet processors and transmit the packets on at least one outgoing packet stream based on the routing information. | 2011-09-29 |
20110235643 | REDIRECT CHECKING IN A NETWORK DEVICE - A network device for performing redirect checking includes an input device and processing logic. The input device receives a data packet on a first one of a number of interfaces. The data packet includes source and destination addresses. The processing logic assigns an incoming interface to the data packet and generates forwarding information identifying a next hop for the data packet. The processing logic also identifies an outgoing interface based on the next hop and determines whether the incoming interface index is equal to the outgoing interface index. The processing logic also determines whether the data packet originated from a station that is part of the same subnet as the next hop. When both of these conditions are met, the processing logic generates a redirect message. | 2011-09-29 |
20110235644 | METHOD AND SYSTEM FOR TRANSPARENT LAN SERVICES IN A PACKET NETWORK - A network apparatus includes a customer network portion having a customer premises equipment (CPE) bridge configured to connect to internal network entities of the customer network portion and to edge bridges of a provider network portion interconnecting separate customer network portions. The CPE bridge is configured to determine a transparent local area network service (TLS) for a packet received from one of the internal network entities based on a media access control (MAC) address of a destination of the packet in a different separate customer network portion. The CPE bridge is also configured to modify the packet to indicate the determined TLS, for the provider network portion to utilize to transmit the packet based on the determined TLS to a second CPE bridge associated with the destination, without the provider network utilizing the destination MAC address. | 2011-09-29 |
20110235645 | VIRTUAL SERVICE DOMAINS - In one embodiment, layer-2 (L2) ports of a network device may each be assigned to a particular virtual service domain (VSD). One or more virtual service engines (VSEs) may also be assigned in a particular order to each VSD, where each VSE is configured to apply a particular service to traffic traversing the VSE between ingress and egress service ports. Interconnecting the L2 ports and the ingress and egress service ports is an illustrative virtual Ethernet module (VEM), which directs traffic it receives according to rules as follows: a) into a destination VSD via the one or more correspondingly assigned VSEs in the particular order; b) out of a current VSD via the one or more correspondingly assigned VSEs in a reverse order from the particular order; or c) within a current VSD without redirection through a VSE. | 2011-09-29 |
20110235646 | METHOD AND APPARATUS FOR DETERMINING PROPAGATION DELAY IN A NETWORK - A propagation delay in the transmission of a frame from an initiator node to a peer node is determined by initially identifying a frame number and byte offset of a first incoming frame from the peer node at a time when the initiator node outputs a portion of a transmitted frame. The portion of the transmitted frame may be the first byte of a sub-frame within the transmitted frame. At the peer node, the frame number and byte offset of a second frame to be supplied to the initiator node is identified at a later time when the frame portion transmitted by the initiator node is received by the peer node, and such information is transmitted to the initiator node. Thus, since the frames output and received by the initiator node are typically of fixed duration, the frame number and byte offset of the incoming frame represent the time when the initiator node outputs the frame portion (a transmit time). In addition, the frame number and byte offset of the second frame represents the time at which the frame portion is received by the peer node (a receive time). Accordingly, by comparing the frame numbers and byte offsets of the first and second frames received from the peer node, a difference between transmit and receive times or propagation delay can be obtained. | 2011-09-29 |
20110235647 | COMMUNICATION SYSTEM AND CONTROL METHOD FOR COMMUNICATION SYSTEM - When connecting a plurality of packet processing parts each having a packet processing function as an added function of a virtual network for each user, there was a problem that the number of packet processing units that were connectable, a function of analyzing a communication packet, etc. were dependent on a transport technology of a core network of a virtual network. A communication system including the packet processing unit for performing an information processing of the communication packet on the virtual network has a virtual network system for the packet processing unit in addition to a wide area core network in a wide area network service. | 2011-09-29 |
20110235648 | DATA RELAY DEVICE AND DATA RELAY METHOD USED IN THE DEVICE - To provide a data relay device which prevents a significant delay even when pieces of data are transmitted/received in protocols that are different from each other. Transmission timings at which pieces of data are transmitted/received in a network using an event trigger type communication protocol are estimated. Stay periods which occur when pieces of data are relayed and transmitted at predetermined transmission timings in a network using a time trigger type communication protocol are calculated while changing a reference time for the time trigger type communication protocol. Then, synchronization processing is performed in the network using the time trigger type communication protocol such that communication is performed using a reference time having a small stay period that has been calculated. | 2011-09-29 |
20110235649 | HETEROGENEOUS MEDIA PACKET BRIDGING - Methods and systems for bridging network packets transmitted over heterogeneous media channels are provided. According to one embodiment, a network-computing device comprises multiple network interfaces (netmods) and a shared processing resource. The shared processing resource executes a virtual bridging application representing a single bridging domain for all network packets received by the network-computing device. A translation data structure defines translations between a first framing media format and an intermediate format and between the intermediate format and a second framing media format. If the virtual bridging application determines a network packet is to be relayed between a netmod operable to receive network packets encapsulated within the first framing media format and a netmod operable to transmit network packets encapsulated within the second framing media format, then it uses the translation data structures to translate the network packet before relaying the network packet. | 2011-09-29 |
20110235650 | PROVIDING FEEDBACK INFORMATION WHEN NETWORK STREAMING OVER MULTIPLE PHYSICAL INTERFACES - The present disclosure is directed to providing feedback information for a data stream being sent from a sending endpoint to a receiving endpoint. Both of the endpoints each have multiple physical interfaces connecting each endpoint to multiple networks, respectively. Information as feedback information is gathered regarding a data capacity throughput for each of the multiple physical interfaces connected to the endpoints. The feedback information is split and sent on one or more of the multiple physical interfaces from the receiving endpoint to the sending endpoint. A detection is made, based on the feedback information, whether one or more of the physical interfaces used to send the feedback information have degraded or failed. The feedback information is then reapportioned and sent from the receiving endpoint to the sending endpoint on one or more of the multiple physical interfaces which have not been detected as degraded or failed. | 2011-09-29 |
20110235651 | NETWORK STREAMING OVER MULTIPLE PHYSICAL INTERFACES USING FEEDBACK INFORMATION - The present disclosure is directed to using feedback information regarding a data stream being sent from a sending endpoint to a receiving endpoint. Both of the sending endpoint and the receiving endpoint each have multiple physical interfaces connecting the sending endpoint and the receiving endpoint to multiple networks, respectively, and the data stream is split into a series of data packets and sent over the multiple physical interfaces. Different portions of the data packets are sent over different ones physical interfaces based at least partially on a data capacity throughput for each of the multiple physical interfaces. Feedback information is gathered for each of the multiple physical interfaces. Feedback information gathered at the receiving endpoint is split and sent to the sending endpoint on one or more of the physical interfaces. Data packets are then reapportioned and sent over different ones of the physical interfaces based on the feedback information. | 2011-09-29 |
20110235652 | IMPLEMENTING ENHANCED LINK BANDWIDTH IN A HEADLESS INTERCONNECT CHIP - A method and circuit for implementing enhanced link bandwidth for a headless interconnect chip in a local rack interconnect system, and a design structure on which the subject circuit resides are provided. The headless interconnect chip includes a cut through switch and a store and forward switch. A packet is received from an incoming link to be transmitted on an outgoing link on the headless interconnect chip. Both the cut through switch and the store and forward switch are selectively used for moving packets received from the incoming link to the outgoing link on the headless interconnect chip. | 2011-09-29 |
20110235653 | WEIGHT-BASED BANDWIDTH ALLOCATION FOR NETWORK TRAFFIC - A network device may implement packet scheduling with administrator-configurable packet scheduling policies. In one implementation, the network device includes a filter component configured to assign priority levels to data units, the priority levels defining traffic classes for the data units. The network device may also include a scheduler component configured to schedule transmission of the traffic classes based on an assignment of weights to the traffic classes using at least one bandwidth allocation policy that exhibits a bandwidth allocation profile that varies based on one or more parameters of the bandwidth allocation policy that are configurable by an administrator. | 2011-09-29 |
20110235654 | METHOD AND APPARATUS FOR STATISTICAL MULTIPLEXING - There is provided a method of statistically multiplexing a plurality of input video data streams into at least one output data stream having a pre-determined capacity, comprising providing a plurality of bit rate estimates at different quality levels for each input video data stream using a look-ahead encoder, summing together the bit rate estimates of the same quality level for all input video data streams, determining the picture quality of each input video data stream at which the summed bit rate estimates is equal to or less than the output data stream pre-determined capacity. There is also provided an apparatus and system for carrying out the method, and a computer readable product carrying instructions which when executed carry out the method. | 2011-09-29 |
20110235655 | PROPRIETARY EXTENSIONS IN USER PLANE LOCATION PROTOCOLS - Systems and methods are provided allowing for a vendor-defined payload in a standardized user-plane location solution/protocol, where proprietary extension support is introduced into one or more standardized solutions. In accordance with a first embodiment, a location payload consists of structures for transferring requests, assistance data, measurements and positioning instructions. Therefore, a proprietary extension is included in each of these structures so that, for example, proprietary assistance data can be requested in an appropriate structure. In accordance with another embodiment, a proprietary extension is introduced at the highest abstraction level. For example and in an actual implementation, a vendor can define that in the beginning of the proprietary payload, the proprietary extension is defined, whether the proprietary payload contains a request, assistance, etc. | 2011-09-29 |
20110235656 | METHOD AND DEVICE FOR ALLOCATING MAC ADDRESSES IN A CARRIER-CURRENT COMMUNICATION NETWORK - In the field of the allocating of communication addresses to devices connected to a carrier-current communication network and more particularly, networks for the remote reading of electrical meters from a data concentration apparatus through the electrical network, there is proposed an improved method of allocating MAC addresses for this type of network making it possible to save a great deal of time during the address allocation phase. This method proposes in particular that a list associating the serial numbers of the devices and the MAC address allocated be stored at the level of the central device for allocating addresses. It is also proposed that a cataloguing request be sent, serving to allocate the MAC address prior to the sending of a communication frame. | 2011-09-29 |
20110235657 | Multimode Apparatus and Method - A method and apparatus are herein provided to align media access control (MAC) cycles of networks of different medium types. Information is obtained that indicates a timing information of a first MAC cycle in a first network of a first medium type and a second MAC cycle in a second network of a second medium type. A buffer is provided for storing the timing information. Alignment information is derived based on the timing information of the first/second network that enables alignment of the MAC cycles between the first and second networks. A controller unit is provided for deriving the alignment information. | 2011-09-29 |
20110235658 | High-Power Laser Fibre System - The invention relates a power fiber laser system including at least one single-mode fiber laser, emitting at a signal wavelength, the fiber including at least one outer cladding and a core, in which the core of the fiber has a radially graded index. The fiber includes, at least over a part of its length, a geometrical section having a graded fiber-core radius that decreases between an input end of the section and an output end of the section, the core radius and the index variation between the cladding and the fiber at the input end being such that the normalized frequency at the signal wavelength is less than the normalized cutoff frequency at which the fiber becomes unimodal. | 2011-09-29 |
20110235659 | SEMICONDUCTOR LASER - A semiconductor laser includes a light emission end facet; a first optical waveguide extending in a predetermined optical-axis direction, the first optical waveguide being optically coupled to the light emission end facet; a ring resonator having a plurality of periodic transmittance peak wavelengths, the ring resonator being optically coupled to the first optical waveguide; a plurality of gain waveguides that generate light by injection of current; an optical coupler portion that optically couples the first optical waveguide to each of the plurality of gain waveguides; and a plurality of second optical waveguides including diffraction gratings, the plurality of second optical waveguides being respectively optically coupled to the plurality of gain waveguides. Also, each of the diffraction gratings in the plurality of second optical waveguides has a different reflection band. | 2011-09-29 |
20110235660 | DRIVER CIRCUIT FOR TUNABLE LD - An LD driver is disclosed where the power dissipation is reduced without enlarging the circuit scale. The LD driver, which drives a tunable LD including a SG-DGB region, a CSG-DBR region, and an SOA region, includes a DC/DC converter connected to current sources or voltage sources each coupled with at least two regions of the SG-DFB, CSG-DBR and SOA regions, and a voltage controller to control the output of the DC/DC converter which is commonly provided to the current sources or the voltage sources. The voltage controller independently monitors the bias conditions of the at least two regions above, and sets the output of the DC/DC converter so as to exceed a largest voltage among voltages currently provided to respective regions by a preset margin to operate the current sources or the voltage sources normally. | 2011-09-29 |
20110235661 | METHOD AND DEVICE FOR GENERATING A SELF-REFERENCED OPTICAL FREQUENCY COMB - The present disclosure relates to a method and to a device ( | 2011-09-29 |
20110235662 | OPTICAL PUMPING STRUCTURE - An optical pumping structure for lasers includes: an active medium in the form of a cylindrical rod with a circular cross-section, said rod being inserted at its ends into two rings made of a thermally conductive material; at least three stacks of pumping diode strips arranged in the form of a star around the rod; and a support temperature-regulated by a Peltier-effect module. The rings are in contact with the support, and a stack of diodes, called bottom stack, being situated between the rod and the support, and the structure comprises, for each other stack, a thermal conduction block forming a support for said stack, these blocks being mounted on the cooled support and not being in contact with one another or with the rings. | 2011-09-29 |
20110235663 | Method and System for Managing Light Source Operation - A laser light source experiencing an EOL condition, which might otherwise cause an unscheduled shutdown, is instead operated in a diminished capacity in one or more predetermined or calculated increments. Operating in such diminished capacity continues until the laser system can undergo appropriate maintenance either during a regularly scheduled shutdown or a newly scheduled shutdown. In the meantime, the diminished capacity of the laser system is accommodated by the utilization tool, as appropriate. | 2011-09-29 |
20110235664 | OPTOELECTRONIC SEMICONDUCTOR CHIP AND METHOD OF PRODUCING AN OPTOELECTRONIC SEMICONDUCTOR CHIP - An optoelectronic semiconductor chip having a semiconductor layer sequence with a plurality of layers arranged over one another includes an active layer with an active region which emits electromagnetic radiation in an emission direction when in operation, a first grating layer on the active layer which, in an emission direction, has a plurality of stripes in the form of grating lines extending perpendicularly to the emission direction with spaces arranged therebetween, and a second grating layer on the first grating layer which covers the stripes of the first grating layer and the spaces and which comprises a transparent material applied by non-epitaxial application. | 2011-09-29 |
20110235665 | COMPOSITIONALLY GRADED HETEROJUNCTION SEMICONDUCTOR DEVICE AND METHOD OF MAKING SAME - A compositionally graded semiconductor device and a method of making same are disclosed that provides an efficient p-type doping for wide bandgap semiconductors by exploiting electronic polarization within the crystalline lattice. The compositional graded semiconductor graded device includes a graded heterojunction interface that exhibits a 3D bound polarization-induced sheet charge that spreads in accordance with ρ | 2011-09-29 |
20110235666 | SEMICONDUCTOR LASER ELEMENT AND METHOD OF MANUFACTURING THEREOF - A semiconductor laser element having; a substrate, a semiconductor layer laminated a first conductivity type semiconductor layer, an active layer and a second conductivity type semiconductor layer in that order on the substrate, a stripe-like ridge formed on the upper face of the second conductivity type semiconductor layer, a conductive oxide layer formed on the upper face of the ridge, a dielectric layer, with a refractive index that is lower than the refractive index of the semiconductor layer, formed on the side faces of the ridge, and a metal layer formed so as to cover the conductive oxide layer and the dielectric layer, the surface of the conductive oxide layer is exposed from the dielectric layer, and the side faces of the conductive oxide layer are sloped with respect to the upper face of the ridge, and the inclination angle of the side faces of the conductive oxide layer with respect to the normal direction is greater than the inclination angle of the side faces of the ridge with respect to the normal direction. | 2011-09-29 |
20110235667 | SEMICONDUCTOR LASER - A semiconductor laser includes a gain region; a distributed Bragg reflector (DBR) region including a diffraction grating; an end facet facing the DBR region with the gain region arranged therebetween; a first ring resonator including a first ring-like waveguide and a first optical coupler; a second ring resonator including a second ring-like waveguide and a second optical coupler; and an optical waveguide that is optically coupled to the end facet and extending in a predetermined optical-axis direction. The first and second ring resonators are optically coupled to the optical waveguide through the first and second optical couplers, respectively. Also, the DBR region, the gain region, and the end facet constitute a laser cavity. Further, the first ring resonator has a free spectral range different from a free spectral range of the second ring resonator. | 2011-09-29 |
20110235668 | METHOD AND APPARATUS FOR SUPER RADIANT LASER ACTION IN HALF WAVELENGTH THICK ORGANIC SEMICONDUCTOR MICROCAVITIES - The disclosed device is a solid state organic semiconductor VCSEL in which the microcavity is composed of metal and dielectric mirrors and the gain layer is only λ/2n thick. The gain layer comprises a thermally evaporated 156.7 nm thick film of the laser dye DCM doped (2.5% v/v) into an Alq | 2011-09-29 |
20110235669 | ENHANCED VBASIS LASER DIODE PACKAGE - A substrate having an upper surface and a lower surface is provided. The substrate includes a plurality of v-grooves formed in the upper surface. Each v-groove includes a first side and a second side perpendicular to the first side. A laser diode bar assembly is disposed within each of the v-grooves and attached to the first side. The laser diode bar assembly includes a first adhesion layer disposed on the first side of the v-groove, a metal plate attached to the first adhesion layer, a second adhesion layer disposed over the metal plate, and a laser diode bar attached to the second adhesion layer. The laser diode bar has a coefficient of thermal expansion (CTE) substantially similar to that of the metal plate. | 2011-09-29 |
20110235670 | METHOD FOR OPERATING A PUMP LIGHT SOURCE HAVING A DIODE LASER - A method is for operating a pump light source having a diode laser, which provides a pump light, in particular for optical pumping of a laser device. The pump light source is activated in a first mode of operation such that the diode laser assumes a predefinable target temperature, which lies in a range of a maximum of the coefficient of absorption of the laser-active solid of the laser device. In a second mode of operation, following the first mode of operation, the pump light source is activated such that it generates pump light to build up a population inversion in the laser-active solid of the laser device. In a third mode of operation, following the second mode of operation, the pump light source is activated such that it generates pump light to activate a laser operation in the laser device, the activation time in the third mode of operation being less than an activation time in the second mode of operation, and/or an activation current in the third mode of operation being greater than an activation current in the second mode of operation. | 2011-09-29 |
20110235671 | Thermal analyzer - To improve measurement accuracy by eliminating influence of a change of a temperature environment around a furnace of a thermal analyzer, the thermal analyzer includes a multilayer structure of at least two sealed layers for covering the furnace and its surroundings so as to isolate the furnace and its surroundings from an outside. An interlayer of the multilayer structure is loaded with a substance having a heat capacity equal to the heat capacity of a gas inside the furnace. | 2011-09-29 |
20110235672 | Thermographic Detection of Internal Passageway Blockages - A method of thermal inspection of a component defining at least one internal passageway. The method includes receiving a continuous sequence of thermal images of at least an exit hole defined by the at least one internal passageway at a surface of the component. The method also includes delivering a pressurized airflow pulse into the at least one internal passageway, receiving a temperature response signal as function of time based on the received thermal images, determining a first derivative of the temperature response signal, and determining a level of blockage of the at least one internal passageway based on the first derivative of the temperature response signal. | 2011-09-29 |
20110235673 | ANALYSIS APPARATUS, ANALYSIS METHOD AND ANALYSIS PROGRAM - A first generating part assumes that a circuit board is a laminated body of a lower layer portion and an upper layer portion and sets a thermal expansion coefficient of the circuit board itself having been actually measured in advance as a thermal expansion coefficient α | 2011-09-29 |
20110235674 | TEMPERATURE SENSING DEVICE - A temperature sensing device is configured for sensing a temperature of electrical elements disposed on a printed circuit board (PCB) and includes a fixing frame, two guiding rails, a sliding rail, a temperature sensor, a driving device, and a processor. The fixing frame is configured for framing the PCB. The guiding rails are parallelly disposed on the fixing frame. The sliding rail is perpendicularly and slidably disposed between the two guiding rails. The temperature sensor is movably disposed on the sliding rail and configured for sensing the temperature of the electrical elements. The driving device is configured for driving the sliding rail and the temperature sensor to slide along the guiding rails and the sliding rail correspondingly. The processor is connected with the temperature sensor and the driving device and configured for storing positions of the electrical elements and controlling the driving device based on the stored positions. | 2011-09-29 |
20110235675 | SUBSTRATE MOUNTING TABLE - There is provided a substrate mounting table capable of accurately measuring a temperature of a wafer supported on the substrate mounting table without incurring contamination within a chamber and without forming a hole for measuring a temperature in the substrate mounting table. The substrate mounting table includes a mounting surface | 2011-09-29 |
20110235676 | THERMAL DETECTOR, THERMAL DETECTION DEVICE, AND ELECTRONIC INSTRUMENT - A thermal detector includes a thermal detection element, a support member, and a fixing part supporting the support member. The support member mounts and supports the thermal detection element on a second side thereof with a first side thereof facing a cavity. The support member includes a first layer member disposed on the second side and having a residual stress in a first direction, and a second layer member laminated on the first layer member on the first side and having a residual stress in a second direction opposite to the first direction. A thermal conductance of the first layer member is less than a thermal conductance of the second layer member. | 2011-09-29 |