34th week of 2009 patent applcation highlights part 28 |
Patent application number | Title | Published |
20090207798 | Apparatus and method for allocating bursts in a broadband wireless communication system - A wireless communication system using multiple channels is provided. An apparatus includes an allocator for, when bursts are allocated to an Accessing Terminal (AT) which utilizes a plurality of channels at the same time, allocating the same amount of the bursts to each channel in use; a generator for, when a map message to be transmitted in a primary channel of the AT is generated, generating the map message which comprises allocation information of the bursts allocated to the AT; and a transmitter for transmitting the map message in the primary channel of the AT. | 2009-08-20 |
20090207799 | SDMA communication system for feeding back channel state information and method supporting the same - According to one aspect of the present invention, there is provided a method for feeding back Channel State Information (CSI) by a Base Station (BS) in a communication system using Space Division Multiple Access (SDMA). The CSI feedback method includes grouping Mobile Stations (MSs) into at least two groups; allocating a second feedback channel over which CSI is to be fed back, to semi-orthogonal MSs having a semi-orthogonal relationship with MSs included in a first group which is one of the at least two groups, among MSs included in a second group which is one of the at least two groups and is different from the first group; receiving CSIs being fed back from the semi-orthogonal MSs through the second feedback channel; and selecting at least one MS satisfying a semi-orthogonal criterion to the MSs included in the first group from among the semi-orthogonal MSs that feed back CSIs through the second feedback channel. | 2009-08-20 |
20090207800 | METHOD AND APPARATUS FOR CHANNEL MANAGEMENT IN COGNITIVE RADIO SYSTEM SUPPORTING MULTIPLE CHANNELS - A method and apparatus for channel management in a Cognitive Radio (CR) system supporting multiple channels are provided. The method includes generating a candidate channel set from an available channel list, configuring a backup channel set by combining at least one candidate channel, and updating the backup channel set when a channel change event occurs. Accordingly, the multiple channels can be effectively used in CR communication. | 2009-08-20 |
20090207801 | METHOD AND APPARATUS FOR SECTOR CHANNELIZATION AND POLARIZATION FOR REDUCED INTERFERENCE IN WIRELESS NETWORKS - The present invention provides in one embodiment channel allocation and polarization techniques for reducing cross sector communications interference in a multiple access wireless communications environment. In one embodiment, channel allocation and/or polarization techniques may be applied in multiple-access wireless communications architectures to provide selective, simultaneous communications with wireless devices using a plurality of transmitters. In some embodiments, a transmitter is coupled to an antenna configured to provide simultaneous communications with wireless devices located in different spatial areas or sectors. In some embodiments, communications between wireless devices within a single sector, between wireless devices in different sectors and between wireless devices and a wired network or wireless backhaul network may be provided. | 2009-08-20 |
20090207802 | METHOD OF PROCESSING CONTROL INFORMATION IN A MOBILE COMMUNICATION SYSTEM - A method of processing control information in a mobile communication system is disclosed, by which an RRC connection setup can be quickly completed and by which control information can be processed without an unnecessary standby of a mobile terminal. The present invention includes the steps of receiving a plurality of protocol data units transmitted plural time from a transmitting side via one common logical channel by an RLC (radio link control) entity operating in a UM (unacknowledged mode) and having a receiving window and a timer, re-ordering a plurality of the received protocol data units using sequence numbers of a plurality of the received protocol data units, the receiving window and the timer, reassembling at least one service data unit by processing a plurality of the re-ordered protocol data units, and delivering the at least one service data unit. | 2009-08-20 |
20090207803 | BASE STATION AND METHOD IN MOBILE COMMUNICATIONS SYSTEM - A disclosed base station in a mobile communications system which uses a single-carrier technique for uplink includes a classifying unit which classifies, for each of multiple user apparatuses according to a path loss between the respective user apparatus and the base station, the multiple user apparatuses into two or more groups; and a scheduler which plans allocating of uplink resources to the user apparatuses. Uplink signals of each user apparatus that have multiple frequency components lined up in equal frequency intervals are multiplexed using a distributed frequency division multiplexing technique such that they are made mutually orthogonal on a frequency axis, the scheduler plans the resource allocating such that the user apparatuses belonging to different groups utilize different group bands or different time slots, and the group bands are specified by dividing a system band into groups. | 2009-08-20 |
20090207804 | Handover Method for Communication Networks - A method of performing a handover process in a wireless multi-hop communication network, the method comprising requesting neighborhood communication information regarding channel condition among access stations in the neighborhood of a mobile station, the neighborhood communication information including communication information related to a link between a first station and a second station in the wireless multi-hop communication network, obtaining the communication information related to the link between the first station and the second station, sending the communication information from the first station to a mobile station in the wireless multi-hop communication network, and configuring the mobile station based on the communication information so as to switch the mobile station to the second station. | 2009-08-20 |
20090207805 | Pre-registration, storing of pre-registration session information and session transfer in a wireless communication system - Example embodiments are directed to a system and methods of pre-registration, storing of pre-registered session information and session transfer, which may occur when an access terminal is in close proximity to a border area between a first radio access technology (RAT) area and a second RAT area. A method includes obtaining pre-registration session information if an access terminal enters a pre-registration zone, starting a pre-registration session information timer associated with the obtained pre-registration session information, and storing the obtained pre-registration session information until the associated pre-registration information timer expires. Further, both an access terminal and an access network include one or more memories configured to store more than one group of pre-registration session information and more than one timer. Each of the timers are associated with a corresponding set of pre-registration session information. | 2009-08-20 |
20090207806 | IP mobility multihoming - The present application relates to a method for arranging IP mobility multihoming. A plurality of IP mobility configuration parameter sets is accessed, each of the sets being associated with a destination network. One of the IP mobility configuration parameter sets is selected for an IP data connection, the selected IP mobility configuration parameter set being associated with a destination network of the IP data connection. An IP mobility protocol instance associated with the destination network is activated on the basis of the selected IP mobility configuration parameter set. | 2009-08-20 |
20090207807 | INTER-SUBSYSTEM TRANSFERS - In general, the present invention provides for a direct inter-subsystem transfer of an active communication session, such as a call, between a packet subsystem (PS) and a circuit-switched subsystem (CS) in an efficient and effective manner while maintaining service control and continuity. Further, the inter-subsystem transfer may take place between a PS of one generation and a CS of another generation. | 2009-08-20 |
20090207808 | METHOD AND APPARATUS FOR INTER-TECHNOLOGY HANDOFF OF A MULTI-MODE MOBILE STATION - A communication system reduces set up time for an inter-technology handoff of a multi-mode mobile station (MS) from a source network associated with a first radio frequency (RF) technology to a target network associated with a second RF technology by pre-establishing, prior to a determination to handoff the MS, a registration state of the MS and an authentication of the MS in association with the target network and second RF technology. In order to pre-establish the registration state and authentication, the MS exchanges messaging of the second RF technology with the second network via the first network and first RF technology. To facilitate the exchange, the MS includes shims in a second protocol stack associated with the second technology, which shims intercept second protocol stack signaling and redirect the intercepted signaling to a first protocol stack of the MS, associated with the first technology, for tunneling to the source network. | 2009-08-20 |
20090207809 | APPARATUS AND METHOD FOR REDUCING HANDOVER DELAY IN BROADBAND WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for reducing a handover delay in a broadband wireless communication system are provided. In a method for operating a terminal to reduce a handover delay in a broadband wireless communication system, a handover procedure is performed with a serving Base Station (BS) to obtain a dedicated ranging code and a Connection ID (CID). The dedicated ranging code is transmitted to one or more target BSs using the CID. Whether the dedicated ranging code is received is determined. Therefore, a handover delay and a chance of malfunction can be reduced. | 2009-08-20 |
20090207810 | METHOD AND BASE STATION FOR FORWARDING RETRANSMISSION PROTOCOL RELATED DATA - The present invention relates to a method for controlling a radio cell change of a communication terminal from a first radio cell to a second radio cell, wherein the first and the second radio cell is controlled by at least one base station of a mobile communication system. The present invention further provides a base station and a communication system comprising a plurality of base stations and a communication terminal adapted to execute the control method. To overcome negative impacts of data loss and delay during a cell change procedure the protocol context of a retransmission protocols are transferred from a source base station to a target base station upon an cell change of a communication terminal in issue. | 2009-08-20 |
20090207811 | FREQUENCY QUALITY CRITERIA FOR INTER-FREQUENCY HANDOVER IN A TD-CDMA COMMUNICATION SYSTEM - A method for determining whether to perform handover of a UE apparatus to a candidate cell and carrier frequency of a TD-CDMA telecommunications network (such as a TD-SCDMA network) based separately on coverage and capacity, using one decision metric for coverage (e.g. based on received signal code power for the candidate cell and carrier frequency) and a different decision metric for capacity (e.g. based on a quantity proportional to the received signal code power for the candidate cell and carrier frequency and inversely proportional to a measure of total interference in the candidate cell on the carrier frequency. Corresponding equipment and a computer program product are also provided. In deciding whether handover is needed based on capacity, a threshold for received signal code power may be used in addition to the metric for capacity. | 2009-08-20 |
20090207812 | DUAL RADIO HANDOVERS BEWEEN WIMAX AND 3GPP - A method of switching a device from a source network to a target network, the source network being one of a WiMAX network and a 3GPP network and the target network being another of the WiMAX network and the 3GPP network, may include receiving information from the device about the source network and about the target network. The information received from the device may be monitored to determine whether parameters of the source network have crossed a handoff threshold. The information received from the device also may be monitored to determine whether parameters of the target network are suitable for handoff. The method may also include instructing the device to perform a handover of communications to a radio associated with the target network based on the parameters of the source network, the parameters of the target network, and a handoff policy. | 2009-08-20 |
20090207813 | METHODS AND DEVICES FOR DETERMINING IF A HANDOVER HAS TO BE EXECUTED FOR A TERMINAL - The present invention concerns a method for determining, in a wireless cellular telecommunication network, if a handover of a half-duplex terminal has to be executed from a first base station to a second base station, the half-duplex terminal not transferring and not receiving signals during a period of time, called an idle period. The first base station:
| 2009-08-20 |
20090207814 | RADIO COMMUNICATIONS SYSTEM, RADIO NETWORK CONTROLLER AND BASE STATION - The present invention relates to a radio communications system which transmits same downlink information to a plurality of cells by using downlink common channels. The radio communications system includes a radio network controller and a base station. The radio communications system is configured to measure delays between the time when the radio network controller transmits the downlink information and the time when the base station transmits the downlink information to each of the plurality of cells; and to control timing for transmitting the downlink information to each of the plurality of cells by the base station in accordance with measured delays. | 2009-08-20 |
20090207815 | RESOURCE ALLOCATION FOR CO-EXISTING NETWORKS - The present invention relates to methods and arrangements for improving the capabilities of an evolved Universal Terrestrial Radio Access Network, in particular for cases when more than one radio access network applying a time-division duplex transmission mode need to co-exist on a same carrier. The invention addresses further problems concerning an efficient allocation of uplink resources and resource allocation in a handover situation. The present invention assigns an attribute in form of a distinguishing value to the time slots used for the uplink and downlink transmission on said carrier such as to avoid scheduling of transmissions via a first radio access network in downlink or uplink time slots assigned to the second radio access network and to avoid scheduling of transmissions via the second radio access network in uplink time slots assigned for transmissions in the first radio access network. | 2009-08-20 |
20090207816 | Method for Ensuring the Service Platform the Acquisition of the User Terminal Information Under Multiple Application Protocols - The present invention discloses a method for ensuring the service platform the acquisition of the user terminal information under multiple application protocols, wherein client terminal service connection software is set in the user terminal or the user card, and said client terminal service connection software has service connection user interface and is able to inspect and control the mobile service connection carried out by the mobile terminal. By adding the step of sending the general application protocol request to the proxy server before the service request of the user terminal, it is ensured that the service platform is still capable of acquiring the user's cellphone number without upgrading the proxy server, so that it avoids the problem of frequent upgrading for equipments caused by new application protocol's appearance, increases the adaptability to the upgrading of application protocols, decreases the network rebuilding cost, increases the flexibility of the management for terminals, and improves the service serving level and the user's feelings. | 2009-08-20 |
20090207817 | Policy-Based Data Routing For A Multi-Mode Device - Communication devices capable of at least two communication modes (e.g. WLAN, WMAN and WWAN and/or wired modes) can be configured to optimize communications using a policy-based mechanism to configure connections and routes. A rules engine evaluates its policies on a state change (e.g. network availability, time of day, etc.) to configure a routing table and, together with communication APIs, provides an appropriate connection to an application for its respective communications. Policies may be responsive to various factors such as Radio Access Technology (high/low bandwidth), cost, presence, time of day, location, application type and quality of service (QoS) requirements among others to optimize communications. | 2009-08-20 |
20090207818 | PACKET DECODING FOR H-ARQ TRANSMISSION - Techniques for efficiently decoding packets sent with H-ARQ are described. Packet decoding for H-ARQ may be performed based on local search around a start of packet (SOP) decision for a packet. The SOP decision for the packet may be made based on traffic detection results for received transmissions. At least one SOP hypothesis may be determined for the packet based on the SOP decision, and the received transmissions may be decoded based on the at least one SOP hypothesis. A sliding SOP window may be used to keep track of SOP hypotheses for the packet. The sliding window may be initialized at an earliest received transmission, moved forward for each subsequent received transmission with no detected packet data, and maintained at the first received transmission with detected traffic. Rotating buffers may be used to store received transmissions for packets for decoding. | 2009-08-20 |
20090207819 | MOBILE STATION AS A GATEWAY FOR MOBILE TERMINALS TO AN ACCESS NETWORK, AND METHOD FOR REGISTERING THE MOBILE STATION AND THE MOBILE TERMINALS IN A NETWORK - A mobile station is designed, as a gateway for one or several mobile terminals, to establish a connection between the mobile terminal(s) and an access network. The mobile station supports a network-based mobility management such that the mobile station acts as a client instead of the mobile terminals during communication with a home agent of a home network or intermediate network connected to the access network in the framework of a mobile IP connection. | 2009-08-20 |
20090207820 | TRANSMISSION OF DATA PACKETS IN A WIRELESS COMMUNICATION NETWORK - The invention relates to a method for retransmitting data packets in a network. Further, the invention relates to an adapted system for performing the method. To improve the robustness in the transmission of an acknowledgment message by a mobile terminal to the network, while minimizing a signaling overhead, the invention provides mechanisms that optimize the retransmission of data packets and manage acknowledgement messages. The mechanisms disclosed are particular applicable to heterogeneous radio access networks. | 2009-08-20 |
20090207821 | MAINTAINING PREFIX CONSISTENCY IN DYNAMIC MOVING NETWORKS - The present invention relates to arrangements providing a solution for maintaining prefix consistency in dynamic (splitting and merging) moving networks and reducing the negative consequences of splits and mergers. | 2009-08-20 |
20090207822 | Method for transmitting and receiving signals using collaborative MIMO scheme - A method for reducing inter-cell interference and a method for transmitting a signal by a collaborative MIMO scheme, in a communication system having a multi-cell environment are disclosed. An example of a method for transmitting, by a mobile station, precoding information in a collaborative MIMO communication system includes determining a precoding matrix set including precoding matrices of one more base stations including a serving base station, based on signal strength of the serving base station, and transmitting information about the precoding matrix set to the serving base station. A mobile station in an edge of a cell performs a collaborative MIMO mode or inter-cell interference mitigation mode using the information about the precoding matrix set collaboratively with neighboring base stations. | 2009-08-20 |
20090207823 | SYSTEM AND METHOD FOR PROVIDING SELECTIVE MOBILITY INVOCATION IN A NETWORK ENVIRONMENT - A method is provided in one example embodiment and includes invoking a mobile access gateway function based on an end user requesting an Internet Protocol (IP) address in a wireless or a wireline network. The invocation is selective such that the mobile access gateway function is invoked if the end user requires IP mobility services. The method also includes communicating with a gateway in order to obtain the IP address. The mobile access gateway function is coupled to a network element that receives packets for a communications flow from the end user that can conduct the flow through the wireless network and through the wireline network. | 2009-08-20 |
20090207824 | Wireless Access Point Device - A wireless (such as Wi-Fi or similar) access point is included in or attached to a device, such as a cellular phone, WiMAX device, other mobile device, etc. One or more wireless units wirelessly access a communication network (and in some cases the Internet) through the wireless access point device. Additionally, such a wireless access point device can receive a transmission from a wireless tag that has been attached to an object to be monitored and can forward information from the wireless tag to a target device along with location information. | 2009-08-20 |
20090207825 | MEDIA ACCESS CONTROL APPARATUS AND METHOD FOR GUARANTEEING QUALITY OF SERVICE IN WIRELESS LAN - A media access control (MAC) apparatus and corresponding methods for guaranteeing quality-of-service in a wireless local area network (LAN) are presented. The MAC method includes the steps of extracting, performing, determining, a first transmitting step, and a second transmitting step. The extracting step includes extracting a user priority from a frame received from an upper layer and separately storing a voice frame and a non-voice frame according to an access category (AC). The performing step includes independently performing backoff operations for the voice frame and the non-voice frame. The determining step includes determining whether the backoff operations for the voice frame and the non-voice frame have simultaneously ended. The first transmitting step includes transmitting the voice frame having a higher priority first and performing the backoff operation for the non-voice frame if the backoff operations have simultaneously ended. The second transmitting step includes transmitting a frame whose backoff operation ends if the backoff operations have not simultaneously ended. | 2009-08-20 |
20090207826 | Simultaneous Operation of Wireless LAN and Long-Range Wireless Connections - A method for communication includes establishing a first connection between a wireless terminal and a base station of a long-range wireless data network, which operates in accordance with a first protocol that defines a sequence of time frames for transmission of data between the wireless terminal and the base station. A signal is sent from the wireless terminal to the base station identifying an interval including one or more of the time frames during which the wireless terminal will not receive data from the base station. During the interval, a second connection is established between the wireless terminal and an access point of a wireless local area network (WLAN) in accordance with a second protocol, different from the first protocol. | 2009-08-20 |
20090207827 | HIGH DATA THROUGHPUT WIRELESS LOCAL AREA NETWORK RECEIVER - A method for receiving a frame in a high data throughput wireless local area network begins by receiving a preamble of the frame via a channel in accordance with a default receiver filter mask. The processing continues by validating the preamble. The processing continues by, when the preamble is validated, interpreting the preamble to determine a high data throughput channel configuration. The processing continues by reconfiguring the default receiver filter mask in accordance with the high data throughput channel configuration to produce a reconfigured receiver filter mask. The processing continues by receiving a data segment of the frame in accordance with the reconfigured receiver filter mask. | 2009-08-20 |
20090207828 | TRANSPARENT SESSION INITIATED PROTOCOL - Method and apparatus employing a transparent session initiation protocol (SIP) technique for communication especially between a user device in one domain and an application/service provided in an external domain. The transparent SIP technique is usable in wired or wireless systems such as 3G systems and wireless local area networks (WLANs). | 2009-08-20 |
20090207829 | Communications Systems - In a multi user communication system, subcarriers are allocated to subchannels using a quality measurement for each subchannel. An initial sub carrier is allocated to each subchannel, and a quality metric measured. Subsequent subcarriers are allocated in dependence upon the quality measurement for each subchannel. The subchannel with the lowest quality measurement receives the first allocation, and the subchannel with the highest quality measurement receives the last allocation. The subsequent allocation is repeated, following a re-sort of the subchannel quality measurements, until all of the subcarriers are allocated. | 2009-08-20 |
20090207830 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SLOTTEDMODE ATTRIBUTE IN WIRELESS COMMUNICATION SYSTEMS - A method and apparatus for transmitting a SlottedMode attribute in a wireless communication system is described. A SlottedMode attribute message comprising an 8 bit Length field wherein the Length field indicates length of the complex attributes in octets, an 8 bit AttributeID field, an 8 bit SlotCycleBase field wherein the SlotCycleBase field is set to the SlotCycleBase that is used in calculating a period, an 8 bit SlotCycle field wherein the SlotCycle1 field is set to SlotCycle1, an 8 bit SlotCycle2 field wherein the SlotCycle | 2009-08-20 |
20090207831 | METHOD OF TRANSMITTING FEEDBACK INFORMATION USING AN EXTENDED SUBHEADER - A method of transmitting feedback information is disclosed. More specifically, a mobile station (MS) receives a Protocol Data Unit (PDU) which includes a Medium Access Channel (MAC) header from a base station (BS). Thereafter, the MS determines from the received MAC header whether an extended subheader group appears after the MAC header, and also identifies a feedback request extended subheader from the extended subheader group. Lastly, the MS transmits the feedback information according to the feedback request extended subheader. | 2009-08-20 |
20090207832 | SYNCHRONIZING DATA TRANSMISSION OVER WIRELESS NETWORKS - Techniques for providing an uninterrupted data stream to a mobile node are disclosed. In a first technique, a time stamp is inserted at some point in the wireless network and the time stamp is used along with a tolerance value to determine when to transmit a packet in a data stream. By transmitting the packets at the same adjusted time, transmission to mobile nodes is synchronized. A second technique uses duplication of data stream content to avoid an interruption in the data stream at a mobile node. A third technique uses an error correcting code to avoid interruption of the data stream at a mobile node. A fourth technique uses a sequence number inserted into packets in the data stream at the content server to synchronize transmission to mobile nodes. | 2009-08-20 |
20090207833 | EFFICIENT KEY SQUENCER - A method includes for determining a plurality of fields of a packet associated with a routing of the packet, wherein each field of the plurality of fields includes one or more bits. Arranging the bits of the plurality of fields into a plurality of ordered partitions of a search sequence, the search sequence being associated with a plurality of searches, wherein the searches are based on the bits included in one or more of the ordered partitions. Providing, to a routing table including routing information associated with the routing of the packet, one or more of the ordered partitions of the search sequence, wherein the routing table is structured based on the search sequence. Receiving, based on the plurality of searches, the routing information associated with the routing of the packet from the routing table. Routing the packet based on the routing information. | 2009-08-20 |
20090207834 | TRANSMITTING A PACKET FROM A DISTRIBUTED TRUNK SWITCH - A method of transmitting an upstream communication packet from a distributed trunk (DT) switch is described. The method comprises receiving a packet from a device connected to a DT port of the DT switch; and transmitting the received packet via a non-DT port of the DT switch if the DT switch is the owner of the device and transmitting the received packet via a DT interconnect (DTI) port of the DT switch if the DT switch is not the owner of the device. | 2009-08-20 |
20090207835 | Enterprise Collection Bus - Systems and methods are presented to collect raw data from a plurality of servers and nodes on a network. A Distributed Enterprise Collection Bus (DECB) architecture is employed at various points on a network. The DECB comprises a collector unit that is protocol agnostic, an orchestration unit, a rule database, a filtering unit, and a distribution unit. Packets of raw data such as Call Detail Records (CDRs) generated by switching centers are received, and distributed to relevant destinations. Relevant destinations include data warehouses, mediation, analytics, etc. The goal is to alleviate collection and filtration duties of the source and destination. | 2009-08-20 |
20090207836 | TRANSMISSION METHOD AND APPARATUS - A voice packet transmission method and apparatus for transmitting a voice packet with a header, wherein a voice packet with a compressed header is transmitted, monitoring is performed to detect whether a necessity to send a voice packet with an uncompressed header is generated during the transmission, the voice packet data with an uncompressed header is divided into a plurality of portions when the necessity is generated, and each divided data is transmitted via different antennas by spatial multiplexing. | 2009-08-20 |
20090207837 | Apparatus and method for allocating media resources - A Media Resource Routing module for a VoIP network having a Host Media Processing and a Media Resource Board. The Media Resource Routing module includes a status list module indicating available resources of the Host Media Processing and available channels on the Media Resource Board and switches for routing communications based on data in the status list so that resources are used efficiently. | 2009-08-20 |
20090207838 | TERNARY CONTENT ADDRESSABLE MEMORY EMBEDDED IN A CENTRAL PROCESSING UNIT - An arithmetic logic unit ( | 2009-08-20 |
20090207839 | MULTICAST DELIVERY - A method and nodes in a communication network for controlling multi-cast delivery of files, wherein the multi-cast delivery is adapted to reduce the amount of required uni-cast file deliveries in the communication network. A browser of an IPTV Terminating Function requiring a file interrogates a cache of the IFT for the file content before a uni-cast request for file delivery is sent to an Application Service Platform. The files stored in the cache have been previously delivered to the IFT via the proposed multi-cast mechanism. If the file content is not stored in the cache, a uni-cast request is sent to the ASP. Each uni-cast request is also forwarded to a Multi-Cast Controller, which determines whether the requested file should be sent also to a plurality of additional IFTs on a multi-cast channel. At each IFT, listening to the multi-cast channel, the received content can be handled selectively according to a filtering mechanism, and a received file may, e.g. be stored in the cache for later retrieval. | 2009-08-20 |
20090207840 | PERFORMING MULTICAST COMMUNICATION IN COMPUTER NETWORKS BY USING OVERLAY ROUTING - An overlay protocol and system for allowing multicast routing in the Internet to be performed at the application level. The overlay protocol uses “native” Internet multicast and multicast routing protocols to route information, according to overlay routing tables. Overlay groups are mapped to native multicast groups to exploit native multicasting in regional or local forwarding domains. Use of the overlay protocol allows overlay distribution to be handled in a more intelligent and bandwidth-managed fashion. Overlay routers are placed at each of several local area networks, Internet service provider's point of presence, enterprise, or other cohesively-managed locations. The overlay computers are configured according to bandwidth and security policies, and perform application-level multicast distribution across the otherwise disjoint multicast networks by using the overlay routing. The result is an overlay multicast network that is effectively managed according to local network management policies. Application-level control can be applied to the transferred data at the overlay routers. | 2009-08-20 |
20090207841 | METHOD, APPARATUS AND SYSTEM FOR CONTROLLING MULTICAST BEARER RESOURCES - A method, apparatus, and system for controlling multicast bearer resources are disclosed, which employ a resource and admission control subsystem (RACS) to control the multicast bearer resources. The method includes: a network entity in a RACS receives a request for controlling multicast bearer resources from a bearer-layer network entity and controls the multicast bearer resources. The network entity in the RACS includes: a receiving unit adapted to receive a request for controlling multicast bearer resources from a bearer-layer network entity and a control unit adapted to control the multicast bearer resources. | 2009-08-20 |
20090207842 | FRAME RELAY APPARATUS AND ROUTE LEARNING METHOD - A frame relay apparatus includes an acquisition unit for acquiring a frame from an input port connected to a first subnet, a setting unit for setting an output port corresponding to a destination of the frame acquired by the acquisition unit, an assignment unit for assigning, to the frame, a flag indicating whether the output port of the frame set by the setting unit is connected to a second subnet, and a registration unit for storing the flag assigned to the frame by the assigning unit as well as a source address of the frame acquired by the acquisition unit and a port number in a learning table for storing a correspondence between an address and the port number. | 2009-08-20 |
20090207843 | SYSTEM AND METHOD FOR PROVIDING NETWORK ADDRESS TRANSLATION CONTROL IN A NETWORK ENVIRONMENT - A method is provided in one example embodiment and includes receiving packets at a network element for a communications flow from an end user, the network element receiving the packets if the flow is initiated through a wireless network and through a wireline network. A network address translation (NAT) binding occurs for the end user at the network element, the NAT binding including an Internet Protocol (IP) address for the end user, the NAT binding being controlled by policy infrastructure coupled to the network element. The network element can be provided along a routing path for the flow (e.g., the IP session), irrespective of whether mobility services are used by the end user. The policy infrastructure can also support NAT control between home and visited networks with the visited network retaining control and privacy over the actual NAT elements being used. | 2009-08-20 |
20090207844 | MINIMAL DECODING METHOD FOR SPATIALLY MULTIPLEXING DIGITAL VIDEO PICTURES - Multiple video picture frames are combined into a spatial multiplex video picture frame that may be fully decoded and displayed. The video display of the spatial multiplex video picture frame is a composite combination of all of the video picture frames that have been combined, and may have an appearance such as a mosaic. Multiplexing the video picture frames involves removing picture headers, creating a picture header for the spatial multiplex video picture frame, and altering the headers of individual components of each video picture frame. The new header for the spatial multiplex video picture frame indicates a slice format frame, and headers of the individual components are altered to provide a slice format based picture position for each video picture frame. The headers of the individual components are altered to become slice based, such as in accordance with the ITU-T H.263 video standard, prior to establishing the slice based picture position if the frames are not already of the slice format. | 2009-08-20 |
20090207845 | METHOD AND DEVICE FOR AVOIDING LABEL COLLISION IN PBT CONTROLLED BY GMPLS - A method for avoiding label collision in PBT controlled by GMPLS is provided. The method is as follows. A label to be assigned is selected for a label switched path (LSP) to be established. It is judged whether the label selected from labels to be assigned is repeated by previously assigned labels. The selected label is used as the label of the LSP if the selected label is not repeated by any of the previously assigned labels. The embodiment of the present invention also provides a device for avoiding label collision. Thus, the problem of label collision in PBT controlled by GMPLS is effectively solved. | 2009-08-20 |
20090207846 | PROPAGATION OF MINIMUM GUARANTEED SCHEDULING RATES AMONG SCHEDULING LAYERS IN A HIERARCHICAL SCHEDULE - A hierarchy of schedules propagate minimum guaranteed scheduling rates among scheduling layers in a hierarchical schedule. The minimum guaranteed scheduling rate for a parent schedule entry is typically based on the summation of the minimum guaranteed scheduling rates of its immediate child schedule entries. This propagation of minimum rate scheduling guarantees for a class of traffic can be dynamic (e.g., based on the active traffic for this class of traffic, active services for this class of traffic), or statically configured. One embodiment also includes multiple scheduling lanes for scheduling items, such as, but not limited to packets or indications thereof, such that different categories of traffic (e.g., propagated minimum guaranteed scheduling rate, non-propagated minimum guaranteed scheduling rate, high priority, excess rate, etc.) of scheduled items can be propagated through the hierarchy of schedules accordingly without being blocked behind a lower priority or different type of traffic. | 2009-08-20 |
20090207847 | RELAY DEVICE AND RELAY METHOD - A relay device includes response frame transmitting technique for transmitting a response frame with the result of the inquiry to the effect that the source address coincident with the destination address to be inquired has been registered in the learning table to the relay device from which the inquiry frame was transmitted in the case that the registration judging technique has judged that the source address coincident with the destination address to be inquired has been registered in the learning table, and frame relaying technique for relaying the received frame whose relay has been temporarily postponed via the receiving port for the response frame in the case that the response frame was received. | 2009-08-20 |
20090207848 | FLEXIBLE BUFFER ALLOCATION ENTITIES FOR TRAFFIC AGGREGATE CONTAINMENT - An apparatus comprising a plurality of physical ingress ports configured to receive data, each data having a data type; a plurality of physical egress ports configured to transmit data; a memory configured to buffer data that has been received; a plurality of virtual routing devices, wherein each of the virtual routing devices is associated with a particular data type and each of the virtual routing devices is configured to: virtually buffer data associated with the respective data type, and regulate the quality of service provided to the respective data type; and a data manager configured to manage the receipt and transmission of data. | 2009-08-20 |
20090207849 | COMMUNICATION SYSTEM - The invention provides a communications system with few transmission collisions. The communications system is provided with a rhythm node, which rhythm nodes transmit synchronized upstream transmission instigation messages, upon receipt of which dominant nodes perform upstream transmissions sequentially and after their predetermined standby times. The rhythm node transmits synchronized downstream transmission instigation messages, upon receipt of which tonic nodes perform downstream transmissions sequentially and after their predetermined standby times. Transmissions of upstream transmission instigation messages and downstream transmission instigation messages are synchronized. Transmissions are efficient and without collisions because individual nodes perform transmissions in sequence rather than instantaneously. | 2009-08-20 |
20090207850 | System and method for data packet transmission and reception - A system transmits a data packet from a transmitting apparatus to a receiving apparatus. The receiving apparatus includes a receive buffer, and a size specifying information transmitting unit that transmits size specifying information to the transmitting apparatus. The transmitting apparatus includes a transmit buffer, a credit storage unit that stores, as a credit, a value corresponding to a total size of all data packets stored in the receive buffer, a credit adding unit that adds a credit to the stored credit on transmitting a data packet, a credit subtracting unit that specifies a size of a read-out data packet on receiving the size specifying information, subtracts a credit corresponding to the specified size from a stored credit, and a transmission controlling unit that controls data packet transmission based on a credit stored in the credit storage unit. | 2009-08-20 |
20090207851 | RESOURCE BLOCK SCHEDULING IN COMMUNICATION NETWORKS - The present invention provides for a method of resource-block allocation including processing OFDM symbol samples to produce complex taps of DFT, selecting those of the said taps forming part of a current resource block allocation and processing the said selected taps to provide MAC data, the method further including the steps of storing taps not so previously selected and extracting from the said MAC data resource block allocations designating a current sub-frame and subsequently processing those of the said stored taps identified as having the same sub-frame as the allocations extracted from the said MAC data, such that scheduling blocks can be included within the same sub-frame as one or more scheduled blocks. In this manner the invention can provide a method of indicating the time when the allocation applies, whether for example next frame or current frame, and which leads to applications where the time implies a gap between the allocation and the moment it is scheduled, such that the allocation applies later than the next frame. Advantages therefore arise with resource blocks that are capable of carrying allocations. | 2009-08-20 |
20090207852 | Device for establishing communications interoperability at an incident site including means for recording crisis incidents - What is provided is recording capability for each of the modules utilized by the first responders and other personnel within the area of the incident, with the stored information at each of the first responders' modules being read out through the ad hoc network, where it can be uploaded to storage. The stored information can be displayed at an incident commander work station in real time to give the incident commander a realistic view of the timeline and the severity of the incident, as well as the response. The use of the ad hoc network permits offloading stored information from each of the first responders' modules so as to free up storage within the modules. By providing storage at every node of the ad hoc network, one has access to a timeline of the actions at the incident as well as redundancy, which enhances the memories and observational skills of the first responders. Incident reporting is made complete due to the fact of all recordings being made available at one node on the temporary ad hoc network from which information reports and analysis can proceed, as well as subsequent training. | 2009-08-20 |
20090207853 | Technique for determining a sub-frame configuration - A technique is provided for determining the configuration of a sub-frame having data symbols including cyclic-prefixes. In some communication standards such as the Long Term Evolution (LTE) standard, a plurality of possible configurations exist for a sub-frame, with each configuration being identifiable by a certain cyclic-prefix length. In an exemplary method realization, the technique includes receiving a data signal comprising the sub-frame, evaluating one or more hypotheses of the cyclic prefix length to produce one or more corresponding evaluation results, and, based on the evaluation results, deciding on a most-likely cyclic prefix length, according to which the sub-frame configuration is determined. The hypothesis evaluation may involve autocorrelation and cyclic accumulation of samples of the received data signal. | 2009-08-20 |
20090207854 | SYSTEMS AND METHODS FOR PROVIDING EFFICIENT BANDWIDTH UTILIZATION IN PACKET SWITCHED NETWORKS - Systems and methods are described for efficiently transmitting packetized data from a sender to a receiver over a communications link. A compression context is established between the sender and the receiver based upon commonalities in each of the data packets prior to transmitting the data over the communications link. The data is compressed according to the compression context to thereby create compressed data packets, and the compressed data packets are transmitted to the receiver across the communications link. By establishing compression contexts prior to transmission, the need for in-band signaling is reduced or eliminated. | 2009-08-20 |
20090207855 | COMMUNICATIONS SYSTEM, COMMUNICATIONS PROCESSING METHOD, AND NODES - To the logical links established between the first node and the second node by use of the first protocol belonging to the first layer, a signal, which is a signal of the second protocol belonging to the second layer higher than the first layer and to which signal the information identifying the transmission source node is transmitted. The first and the second nodes manage the communications links in association with the node identifier added to the signal received through the communications links. | 2009-08-20 |
20090207856 | Delivery of IP prefixes - In order to reduce the size of a signaling message advertising prefixes, a super block prefix is determined amongst two or more prefixes having a common pattern. Information on the super block prefix and delta information on each non-super-block prefix is used in the messages instead of the prefixes as such, the delta information indicating how the prefix differs from the super block prefix. | 2009-08-20 |
20090207857 | USER-SPECIFIED KEY CREATION FROM ATTRIBUTES INDEPENDENT OF ENCAPSULATION TYPE - An integrated circuit has a hardware decoder that parses a frame to identify a type of encapsulation, such as Ethernet v2 encapsulation or 802.3 with or without one or more VLAN tags. The integrated circuit also has a number of hardware parsers, each parser being coupled to the decoder by an enable line. During packet processing, one of the parsers is enabled by the decoder, based on the value which identifies the encapsulation type. The enabled parser retrieves one or more attributes from the frame, depending on the encapsulation. The integrated circuit also has a register, coupled to each parser. The register holds the attributes retrieved by the parser. The integrated circuit also has a key generation hardware which creates a key, by concatenating from the attributes register, certain attributes that are pre-selected by a user for forming the key. The integrated circuit supplies the key to a memory (which may be either in the integrated circuit i.e. on-chip or outside the integrated circuit i.e. off-chip) to look up a set of user-specified actions to be performed on data in the frame. The actions may be specified by the user in the form of instructions to a processor. | 2009-08-20 |
20090207858 | Transmission method and reception method - The invention relates to a transmission method in which at least two Ethernet data frames are combined to form one Ethernet telegram and the Ethernet telegram is transmitted via a communications network. | 2009-08-20 |
20090207859 | Flow-Rate-Regulated Burst Switches - Burst-switching nodes using a common-memory or a time shared space switch and employing flow-rate control are disclosed. Within a switching node, data bursts are segmented into data segments of a fixed size with some segments containing information bits as well as null bits. A switching node handles data streams allocated different flow rates and, for any data stream, the internal flow rate through the switching node can be higher than the external flow rate due to null padding of segmented data. The switching node is provided with a sufficient internal capacity expansion in order to offset the effect of null padding. A controller of the switching node is provided with a flow-rate-regulation apparatus to enable scheduling the transfer of data segments across the switching node in a manner that guarantees adherence to the allocated information flow rates. | 2009-08-20 |
20090207860 | METHOD, APPARATUS AND SYSTEM FOR TRANSFERRING DATA - A method for transferring data includes: at the transmit end of data frames, assembling the data frames with a same forward-path into a multiframe as sub-frames; identifying the relevant information of the sub-frames in the header of the multiframe; and encapsulating the multiframe as the payload in the format of frames for transmission in the transport network. An apparatus for transferring data includes: a decapsulation unit, adapted to decapsulate the frames received from the transport network to obtain the multiframe; a multiframe resolving unit, adapted to resolve multiple sub-frames according to the relevant information of the sub-frames that is identified in the header of the multiframe; and a forwarding unit, adapted to send the sub-frames to a customer network according to the forward-paths of the sub-frames. The present invention may reduce the workload of the forwarding equipment in processing data frames, speed up the processing and forwarding of data frames, and improve the network transmission efficiency. | 2009-08-20 |
20090207861 | Method and Apparatus For Formatting Data Signals in a Digital Audio Broadcasting System - A data unit for transmitting data in a digital broadcasting system includes a first payload field, and a first byte code field having a value indicating an offset of data in the first payload field with respect to an absent value. A method for formatting the data unit includes: providing data for a payload field for a data unit, wherein the data includes an absent byte value, determining an offset between an absent byte value and other data in the payload field, shifting the data in the payload field by the offset to produce shifted bytes, and inserting a byte code in the data unit, wherein the byte code indicates the offset. A transmitter for transmitting the data units, and a receiver for receiving the data units are also provided. | 2009-08-20 |
20090207862 | Controlling The Operation Of Modules - In a method for controlling the operations of modules that are interconnected through interconnections in which high-speed signals operate at high-bit rates, a low-frequency signal is placed on at least one of the interconnections. From the low-frequency signal operational information on the modules is retrieved. | 2009-08-20 |
20090207863 | METHOD AND APPARATUS OF CLOCK TRANSMISSION BETWEEN NETWORKS - A method of clock transmission between networks and an apparatus of clock transmission are disclosed, in which a second group of information corresponding to a clock transferred by a first network equipment based on a first protocol, and the second group of information corresponding to a clock transferred by a second network equipment based on a second protocol are acquired, and a source selection is performed in a united way by adopting a source selection manner based on the second protocol according to the second group of information. Therefore, the equipment in different types of networks can conveniently select a clock with a higher class from clocks transferred based on different protocols, so as to realize a normalization management on the clocks transferred based on different protocols. | 2009-08-20 |
20090207864 | CIRCUITRY AND METHOD FOR DETECTION OF NETWORK NODE AGING IN COMMUNICATION NETWORKS - The network node includes a local crystal oscillator for providing a time reference derived from the clock signal produced by the local crystal oscillator, a reset stage for resetting the network node in response to a bus reset pulse received through the network and a control means for issuing a bus reset pulse of a predetermined length substantially greater than a clock period of the clock signal of the local crystal oscillator. Further the network node includes a bus reset detector for determining a length of the received bus reset pulse based on the local time reference. The bus reset detector in the network node is also adapted to adjust the local time reference based on the determined length of the received bus reset pulse. | 2009-08-20 |
20090207865 | TIME SYNCHRONIZATION IN A NETWORK - A method and corresponding system for communicating between stations in a network is presented. The method includes providing repeated beacon transmissions from a coordinator station for coordinating transmissions among the stations; transmitting a signal from a first station and receiving the signal at a second station; and performing one or both of: generating the signal based on a local clock at the first station and time adjustment information in a beacon transmission received by the first station, and sampling the signal at sample times based on a local clock at the second station and time adjustment information in a beacon transmission received by the second station. | 2009-08-20 |
20090207866 | Apparatus and methods for utilizing statistical multiplexing to ensure quality of service in a network - Methods and apparatus for utilizing bitrate or other data associated with statistically multiplexed video (e.g., programs) or other content within a network to ensure quality of service (QoS) at a subscriber premises or local network. In one embodiment, the present invention provides improved multiplexing apparatus and methods that allow a consumer premises device to obtain QoS data and employ that data to enforce and maintain one or more QoS policies. In another embodiment of the present invention, an improved consumer premises device is provided which is adapted to receive a multiplexed program stream and subsequently demultiplex and time stamp the resulting single program streams. The time stamps are then utilized to generate QoS data which is utilized to enforce and maintain a QoS policy. Business methods associated with the various features described above are also disclosed. | 2009-08-20 |
20090207867 | SURFACE-EMITTING FIBER LASER - In one aspect, the disclosure features an article, including a fiber waveguide extending along a waveguide axis, the fiber waveguide including a core extending along the waveguide axis and a confinement region surrounding the core. The confinement region is configured to guide radiation at a first wavelength, λ | 2009-08-20 |
20090207868 | Multiple-Wavelength Tunable Laser - A tunable laser includes dispersion optics for separating generated laser pulses into first and second wavelength pulses directed along first and second optical paths. First and second reflective mirrors are disposed in the first and second optical paths, respectively. The laser's output mirror is partially reflective and partially transmissive with respect to the first wavelength and the second wavelength in accordance with provided criteria. A first resonator length is defined between the output mirror and the first mirror, while a second resonator length is defined between the output mirror and the second mirror. The second resonator length is a function of the first resonator length. | 2009-08-20 |
20090207869 | LASER PLASMONIC SYSTEM - The present invention can selectively control surface plasmon-mediated two-photon-induced luminescence in a dendritic silver nanoparticle system over distances of up to 100 m. This control is achievable by changing the polarization of the incident beam and by controlling the phase across the spectrum of a femtosecond laser pulse used for excitation. Furthermore, the present invention uses the phase and polarization dependence to address photonically locations within substantially 100 m from the focal spot. | 2009-08-20 |
20090207870 | Laser diode module with an adjustable monitoring current - A laser diode module with an adjustable monitoring current, wherein the photo diodes monitoring the light-emitting power of the laser diode are arranged in array, and wherein a programmed photo diode is formed by the photo diodes in match of a memory and switch control unit. In this way, the problem of an inconstant monitoring current of the prior art is avoided. Meanwhile, an adjustable monitoring current is achieved. | 2009-08-20 |
20090207871 | LASER OSCILLATOR APPARATUS AND POWER SUPPLY APPARATUS THEREFOR, AND CONTROL METHOD THEREFOR - A laser output power command determination value from a controller ( | 2009-08-20 |
20090207872 | NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME - The present invention provides a nitride semiconductor light emitting device having an n-type ohmic electrode with an Au face excellent in ohmic contacts and in mounting properties, and a method of manufacturing the same. The device uses an n-type ohmic electrode having a laminate structure that is composed of: a first layer containing Al as a main ingredient and having a thickness not greater than 10 nm or not less than 3 nm; a second layer containing one or more metals selected from Mo and Nb, so as to suppress the upward diffusion of Al; a third layer containing one or more metals selected from Ti and Pt, to suppress the downward diffusion of Al; and a fourth layer being made of Au, from the side in contact with an n-type nitride substrate in order of mention, and after the laminate structure is formed, the n-type ohmic electrode is annealed. | 2009-08-20 |
20090207873 | Electrically-Pumped Semiconductor Zigzag Extended Cavity Surface Emitting Lasers and Superluminescent Leds - A semiconductor surface emitting optical amplifier chip utilizes a zigzag optical path within an optical amplifier chip. The zigzag optical path couples two or more gain elements. Each individual gain element has a circular aperture and includes a gain region and at least one distributed Bragg reflector. In one implementation the optical amplifier chip includes at least two gain elements that are spaced apart and have a fill factor no greater than 0.5. As a result the total optical gain may be increased. The optical amplifier chip may be operated as a superluminescent LED. Alternately, the optical amplifier chip may be used with external optical elements to form an extended cavity laser. Individual gain elements may be operated in a reverse biased mode to support gain-switching or mode-locking. | 2009-08-20 |
20090207874 | MULTIWAVELENGTH LASER SYSTEM AND METHOD FOR OPHTALMOLOGICAL APPLICATIONS - A multiwavelength laser system for opthalmological applications. The system including a first semiconductor diode laser including a first working beam of a first wavelength; and at least one second semiconductor diode laser having a second working beam of a second wavelength. The second wavelength being different from the first wavelength. | 2009-08-20 |
20090207875 | LIGHT CHIP AND OPTICAL MODULE - There is provided a light chip and an optical module with high reliability. | 2009-08-20 |
20090207876 | Laser Source for the Infrared Wavelength Range - The present invention relates to a laser source for the infrared wavelength range which comprises a pump laser ( | 2009-08-20 |
20090207877 | WALL ELEMENTS FOR WATER-COOLED, CURRENT-CONDUCTING ELECTRODE BEARING ARMS AND ELECTRODE BEARING ARMS PRODUCED FROM SUCH WALL ELEMENTS - The particular aim of the invention is cost-effective production of the wall elements for water-cooled, current-conducting electrode bearing arms, wherein wall elements have been developed which comprise a flat profile, which consists of an electrically conductive metal and into which at least one recess is incorporated on the side forming the outside of the electrode bearing arm, which recess extends over the length of the profile and is provided on the outside and the end side with a cover, which is combined with the flat profile by means of welding and provides a closed cooling channel, with in each case at least one inlet and at least one outlet for the cooling water flowing through the channel. The constituent parts of the wall elements can be produced in a cost-effective manner from continuous material, from which wall elements it is then also possible for electrode bearing arms to be produced in a cost-effective manner taking into consideration individual requirements for electrode bearing arms to be produced from the wall elements in terms of their dimensions. | 2009-08-20 |
20090207878 | Probe - A probe includes a sensing element and a carrier for the sensing element. The carrier has an integrated device for guiding an air stream to the sensing element, and a long axis perpendicular to a plane defined by the flow direction of the air stream. The probe is substantially symmetric with respect to the plane. | 2009-08-20 |
20090207879 | INFRARED SENSOR AND MANUFACTURING METHOD THEREOF - A first thermosensitive element including a temperature detecting unit that outputs a voltage corresponding to a temperature to which the unit rises from ambient temperature (temperature of surrounding environment) due to incident infrared, and a second thermosensitive element including a temperature detecting unit that outputs a voltage based on ambient temperature are formed above/on a silicon substrate. The temperature detecting unit of the first thermosensitive element is thermally insulated from the silicon substrate by a clearance (space). The temperature detecting unit of the second thermosensitive element is formed on a first sacrifice layer made of deposited diamond like carbon, and thermally connected to the silicon substrate by the first sacrifice layer. The infrared sensor detects an amount of incident infrared based on the difference between output voltages of the first and second thermosensitive elements. | 2009-08-20 |
20090207880 | AUTOMATED CONTROL OF ROTATIONAL VELOCITY OF AN AIR-MOVING DEVICE OF AN ELECTRONICS RACK RESPONSIVE TO AN EVENT - Automated control is provided of rotational velocity of an air-moving device cooling an electronics subsystem of an electronics rack. The automated control includes: automatically responding to a failure event associated with the electronics subsystem of the rack by setting rotational velocity of the air-moving device to a first upper limit (RPM | 2009-08-20 |
20090207881 | IMAGE FORMING APPARATUS - An image forming apparatus that can accurately detect whether any one or multiple of a thermochromic member, an optical sensor, and a cooling fan are operating normally or abnormally, and accordingly can run the cooling fan without any failure. The image forming apparatus includes: first and second controlling unit; a thermochromic member that changes color according to the temperature of the first controlling unit; an optical sensor that optically detects a change in the color of the thermochromic member; and a failure detecting unit that is included in the second controlling unit and detects a failure occurring in the thermochromic member and/or the optical sensor based on whether a utilization of the first controller is high or low and a signal from the optical sensor. | 2009-08-20 |
20090207882 | Temperature Sensor Module - A temperature sensor module includes a first temperature sensor configured for sensing the temperature of the environment, and a second temperature sensor configured for sensing the temperature of an eardrum. The first temperature sensor is a thermal diode, and the second temperature sensor is a thermopile. Preferably, the second temperature sensor may be a CMOS-infrared temperature sensor. The first temperature sensor and the second temperature sensor are both made of the semiconductor material such that they have same physical characters and same raising/falling temperature speeds even if entering into the environment with the different temperatures. Therefore, they are proofread easily, have a low manufacturing cost and consume low power. | 2009-08-20 |
20090207883 | PRECISION TEMPERATURE SENSOR - A temperature sensor circuit in accordance with an embodiment of the present invention includes a temperature sensing element operable to provide a temperature voltage that is linearly related to the absolute temperature of the circuit. The temperature sensing element includes a first bi-polar junction transistor and a second bipolar junction transistor connected between a supply voltage and a common ground, wherein the base of first bipolar junction transistor is connected to the base of the second bipolar junction transistor, a first resistor connected between an emitter of the first bipolar junction transistor and the common ground and a second resistor connected between the common ground and a first node, wherein the temperature voltage is provided to the first node across the second resistor. The temperature sensor circuit also includes a current supply element operable to supply a common current to a collector of the first bipolar junction transistor, the second bipolar junction transistor and to the second resistor, respectively, an early voltage element operable to compensate for variations in voltage, a base current element operable to provide a steady base current to the bases of the first and second bipolar junction transistors, a channel modulation element operable to compensate for channel modulation and a leakage element operable to compensate for epi-substrate leakage between the circuit and a substrate on which it is formed. | 2009-08-20 |
20090207884 | METHOD OF MEASURING TEMPERATURE OF TUNNEL MAGNETORESISTIVE EFFECT ELEMENT - A method of measuring temperature of a TMR element includes a step of obtaining in advance a temperature coefficient of element resistance of a discrete TMR element that is not mounted on an apparatus, by measuring temperature versus element resistance value characteristic of the discrete TMR element in a state that a breakdown voltage is intentionally applied to the discrete TMR element and a tunnel barrier layer of the discrete TMR element is brought into a stable conductive state, a step of bringing a tunnel barrier layer of a TMR element actually mounted on the apparatus into a stable conductive state by intentionally applying the breakdown voltage to the mounted TMR element having the same structure as that of the discrete TMR element whose temperature coefficient has been measured, a step of measuring an element resistance value of the mounted TMR element with the tunnel barrier layer that has been brought into a stable conductive state, and a step of obtaining a temperature corresponding to the measured element resistance value from the previously measured temperature coefficient of element resistance. | 2009-08-20 |
20090207885 | Delay estimation apparatus and method - Delay estimation apparatus and method, comprising: a correlation step which a correlation function between a received signal and a supplied template waveform is generated, AD conversion step at which said correlation output generated at said correlation step is uniformly sampled into discrete samples; and arithmetic operation step at which a time delay estimate of the received signal based on said discrete samples generated at said AD conversion step is computed, wherein a selection criterion depending on the digital sampling frequency used at said AD conversion means is checked, if said selection criterion is satisfied, computes the time delay estimate based on the direct pick method, and if said selection criterion does not hold, computes the time delay estimate based on the simplified maximum likelihood (ML) method. | 2009-08-20 |
20090207886 | Apparatus and method for synthesizing and generating an SSC modulated signal - A system and method for synthesizing and generating the SSC modulated signal with precision and in a controlled manner is provided. In one embodiment the system may be integrated in an arbitrary waveform generator. | 2009-08-20 |
20090207887 | APPARATUS AND METHOD FOR TRANSMITTING FEEDBACK INFORMATION IN BROADBAND WIRELESS ACCESS SYSTEM - An apparatus and method for transmitting feedback information are provided. In a method of operating a transmitter for transmitting feedback information in a broadband wireless access system, the method includes estimating a channel of a second path on the basis of information of a received downlink frame, obtaining a channel representative value corresponding to the estimated channel of the second path, modulating the channel representative value by spreading the channel representative value to a sounding symbol to be transmitted, and transmitting the modulated sounding symbol through a first path. | 2009-08-20 |
20090207888 | Transmission Apparatus, Transmission Method, Reception Apparatus, Reception Method, and Transmission System - It is desired to suitably carry out transmission processing and reception processing carried out when transmitting a multicarrier signal where specific subcarriers are omitted. Therefore, the present invention carries out transmission avoidance processing operable when transmitting a multicarrier signal to replace signals corresponding to subcarriers, in a plurality of subcarriers, at frequency positions where transmission is avoided with a null signal. Subsequently, an inverse Fourier transform is carried out on the output of the transmission avoidance processing, the transmission power of the multicarrier signal that has been transformed is amplified in accordance with the number of subcarriers replaced with the null signal and the multicarrier signal is transmitted. When this multicarrier signal is received, subcarriers where transmission was avoided are estimated, and when it is estimated in the estimation that subcarriers where transmission was avoided are present, despreading and demodulation are carried out without using the subcarriers where transmission was avoided. | 2009-08-20 |
20090207889 | SPREAD SPECTRUM COMMUNICATION METHOD ADN SYSTEM USING VERY WEAK POWER, AND HIGH FREQUENCY RADIO APPARATUS - Provided is a high frequency radio apparatus capable of correcting a frequency of a carrier of the own apparatus in accordance with a frequency of a reception carrier when performing spread spectrum communication using very weak power. A carrier demodulating part demodulates a spread code received from a communication counterpart radio apparatus by using default carrier data, and sends the demodulated spread code to a synchronization timing detecting part. When the synchronization timing detecting part detects the spread code from the carrier demodulated data, a carrier frequency deviation detecting part performs a frequency analysis of the spread code to detect a deviation amount of the carrier frequency. A carrier data generating part generates corrected carrier data based on the detected deviation amount. A DBPSK modulating part uses the corrected carrier data to perform data transmission to the communication counterpart radio apparatus. | 2009-08-20 |
20090207890 | Diversity transmitter-receiver in cdma system using space-time code, and method thereof - A diversity transmitting/receiving apparatus and method is provided, which is implemented using space-time trellis codes (STTC) constructed from a Pseudo Noise (PN) sequence set in a Direct Sequence (DS) CDMA system. The transmitter comprises a PN sequence generator, a space-time encoder, first and second modulators, and first and second multiple transmit antennas. The space-time encoder selects two of the multiple PN sequences to construct STTC, and space-time encodes data from a data source according to the STTC to output an Wary data symbol. The two modulators modulate the space-time encoded data according to the STTC. The two multiple transmit antennas wirelessly transmit outputs of the two modulators, respectively. By applying a method using space-time coding in a DS CDMA system including multiple transmit antennas, it is possible to achieve both diversity and additional coding gain and also to reduce multiple user interference by increasing the PN sequence length. | 2009-08-20 |
20090207891 | MULTIPATH DETECTION FOR RECEIVED SPS SIGNAL - The subject matter disclosed herein relates to detecting and/or estimating multipath signals. For an example, a signal comprising at least one binary offset carrier (BOC) modulation signal is received. The BOC modulation signal is modulated with a pseudorandom noise sequence comprising a plurality of chips, wherein each of said chips has a set interval. In another aspect, the received signal is correlated with portions of the plurality of chips to provide a power signal. The portions of chips are less than the set interval. In a further aspect, presence of a multi-path signal in the received signal is detected. The detection of multipath is based, at least in part, on one or more characteristics of the power signal. | 2009-08-20 |
20090207892 | Receiving device for spread spectrum communication - A receiving device for spread spectrum communication includes a phase determining unit and a data demodulating unit. The receiving device receives a signal spread and modulated with first spreading code. The phase determining unit calculates a cross correlation between the received signal and a second spreading code and determines a phase P(0) of the received signal based on the cross correlation. The data demodulating unit synchronizes the phase P (0) and the first spreading code and despreads and demodulates the received signal with the first spreading code. The number of components in each of the first spreading code and the second spreading code is an integer greater than or equal to 2. | 2009-08-20 |
20090207893 | HF CONVERTER FOR MOBILE DEVICES - A high frequency (HF) converter for a mobile device, having an input device configured to receive a first signal including data in accordance with a standard, non-HF communication protocol or in accordance with an HF communication protocol; a converter device coupled to the input device, the converter device configured to convert the first signal to a second signal including the data in accordance with the other of the HF communication protocol and the standard, non-HF communication protocol; and an output device configured to transmit the second signal. | 2009-08-20 |
20090207894 | Apparatus, methods, and computer program products providing improved communication in decentralized wireless networks - The exemplary embodiments of the invention enable self-organizing decentralized functionalities in wireless networks, such as ones having an arbitrary topology (e.g., cognitive radio networks), that utilize non-continuous communication, such as packet-based communication. In one exemplary embodiment of the invention, a method includes: making at least one locally available decision or measurement by a first apparatus; and performing a local exchange of information between the first apparatus and at least one second apparatus within a decentralized wireless communication network that at least partially utilizes packet-based communication, wherein the local exchange of information enables cooperation between the first apparatus and the at least one second apparatus in making a collective decision at least partially based on at least one local decision or measurement. | 2009-08-20 |
20090207895 | Data transceiver system and associated methods - A data transceiver system may include an error corrector. The error corrector may include a plurality of delay units, each delay unit being configured to delay a corresponding data signal among a plurality of data signals by a time in response to a corresponding delay code among a plurality of delay codes and outputting the delayed data signal, an error detector configured to receive the plurality of delay codes, determine whether an error has occurred, and output an error signal according to the determination in a data frame lock operation, and a delay controller configured to set initial values of the plurality of delay codes to a predetermined value, vary and output each of the plurality of delay codes in response to a lock signal, and reset initial values the plurality of delay codes in response to the error signal in the data frame lock operation. | 2009-08-20 |
20090207896 | CONFIGURABLE LOAD IMPEDANCE FOR POWER AMPLIFIER PREDISTORTION CALIBRATION - An integrated circuit radio transceiver and method therefor includes an integrated circuit radio transceiver operable to provide specified gain levels and transmit path filter responses to correspond with a selected power spectral density mask. Changes in gain may be provided solely digital gain changes or may include analog gain module gain changes. A transmitter selects from one of at least three masks to reduce or eliminate spectral regrowth out of band to satisfy EVM requirements. Circuitry is provided to allow a transceiver to determine in advance what pre-distortion compensation settings are required for the various gain settings. | 2009-08-20 |
20090207897 | MEASURING APPARATUS, TEST APPARATUS, RECORDING MEDIUM, PROGRAM AND ELECTRONIC DEVICE - There is provided a measuring apparatus for measuring a signal-to-noise ratio of a discrete waveform which is output from an AD converter in response to an input signal, where the signal-to-noise ratio indicates a ratio of a signal component of the input signal to noise generated by the AD converter. The measuring apparatus includes a spectrum compensating section that receives a spectrum of the discrete waveform output from the AD converter, and compensates the received spectrum in accordance with a non-symmetric sideband between an upper sideband and a lower sideband of the received spectrum, where the upper and lower sidebands are defined with respect to a fundamental frequency of the input signal, and a phase noise waveform calculating section that calculates a phase noise waveform of the discrete waveform based on the spectrum which has been compensated by the spectrum compensating section. | 2009-08-20 |