01st week of 2013 patent applcation highlights part 38 |
Patent application number | Title | Published |
20130003706 | VOICE SYNCHRONIZATION DURING CALL HANDOFF - A method, mobile electronic device and system for synchronizing hand-off of a voice media session between a WAN/cellular network and a WLAN network. When a hand-off occurs, the connection with both networks is temporarily maintained and the voice data on both connections compared to determine differences in the delays experienced over both connections. The timing of one or both voice streams is adjusted to synchronize the voice streams, and then the handoff is completed. | 2013-01-03 |
20130003707 | Apparatus, Method And Computer Program Product Providing Extended Measurement Control Signal For Handoff Measurement Under Interference Coordination - In one non-limiting, exemplary embodiment, a method includes: receiving radio resource control signaling with a user equipment, wherein the radio resource control signaling is indicative of at least one frequency sub-band to be measured by the user equipment for a particular cell in a manner transparent to at least one of an interference control scheme and a handover scheme implemented for the cell; performing at least one measurement of the at least one frequency sub-band; and reporting information descriptive of the at least one measurement. | 2013-01-03 |
20130003708 | CONTINUOUS CACHE SERVICE IN CELLULAR NETWORKS - A technique for transmitting an object to a mobile device is provided. In response to the mobile device moving from a first area serviced by a first cache to a second area serviced by a second cache, the first cache transmits the object stored in the first cache to the second cache. The first cache transmits instructions to the second cache that cause the second cache to forward the object to the mobile device in the second area. | 2013-01-03 |
20130003709 | MOBILE WIRELESS COMMUNICATION DEVICE WITH MULTIPLE TRANSCEIVERS - A mobile wireless communication device has multiple 802.11 transceivers. A first transceiver maintains a first 802.11 communication link in accordance with the 802.11 communication specification. A second transceiver maintains, simultaneously to the first transceiver maintaining the first 802.11 communication link, a second 802.11 communication link in accordance with the 802.11 communication specification. The first transceiver comprises first physical layer electronics for executing the physical layer functions of the first 802.11 communication link. The second transceiver comprises second physical layer electronics for executing the physical layer functions of the second 802.11 communication link. The electronics are implemented such that no portion of the first physical layer electronics forms a portion of the second physical layer electronics when the links are being simultaneously maintained. | 2013-01-03 |
20130003710 | METHOD AND SYSTEM OF TRANSPORT MODE NOTIFICATION ON A MULTI-MODE HANDHELD COMMUNICATION DEVICE - A communications device includes multiple data transceivers, each configured for communication via a respective communication transport mode. The communication device has one or more data packets which are associated with one of the communication transport modes. The handheld communication device transmits or receives the data packet(s) via the data transceiver that is configured for communication with the corresponding communication transport mode. A user-indication of the communication transport mode of the data packet(s) is provided in accordance with the data transceiver that communicates the data packet(s). The user indication is provided on a per-data packet basis, substantially contemporaneously with the communication of the data packet(s) via the one data transceiver. | 2013-01-03 |
20130003711 | COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, COMMUNICATION CONTROL METHOD, AND COMMUNICATION CONTROL PROGRAM - A CC-ID information storing unit stores CC-ID information, for every frequency band of a monitoring CC, in which frequency band information and CC-ID are associated. A resource information acquiring unit converts CC-ID extracted from control information into frequency band information. | 2013-01-03 |
20130003712 | Method and circuit intended for high-frequency communication between an interrogator and a smart tag - When communicating with a traditional interrogator of passive smart tags, an actively transmitting smart tag of the invention, even within a data frame being transmitted, observes a first phase (Φi) being a phase of a voltage induced in a tag's antenna by an interrogator's high-frequency carrier signal and transmits wave packets in that it excites the antenna with a voltage having a phase (Φt), which is always set at the beginning of transmission of each said wave packet shifted with respect to said first phase (Φi) by the same phase angle (ΔΦ). At ΔΦ=180° an amplitude of voltage across an interrogator's antenna, when some of said wave packets influence this antenna, attains the largest attainable interference rise. Miniature actively transmitting smart tags are enabled to wirelessly communicate with said traditional interrogator and a communication range of pocket-sized tags is herewith increased. | 2013-01-03 |
20130003713 | COMMUNICATION METHOD AND COMMUNICATION SYSTEM - A first communication device generates a control header containing mapping information indicating channels to which data of time division multiplex is mapped, maps the data of time division multiplex and data of another format to respective channels according to the mapping information, and transmits a signal in which the data of time division multiplex and the data of the other format have been mapped and the control header, and a second communication device receives the signal in which the data of time division multiplex and the data of the other format have been mapped and the control header, acquires the mapping information from the control header, and acquires the data of time division multiplex and the data of the other format from the respective channels of the signal according to the mapping information. | 2013-01-03 |
20130003714 | SYSTEMS AND METHODS FOR IMPROVED DIGITAL RF TRANSPORT IN DISTRIBUTED ANTENNA SYSTEMS - Systems and methods for improved digital RF transport in a DAS are provided. In one embodiment, a transceiver comprises: a receive path circuit including an RF reception interface coupled to an ADC, the ADC receiving a down-converted analog RF spectrum from the RF reception interface and producing a digitized RF spectrum at an input sampling rate; a logic device receiving the digitized RF spectrum and producing a first set of baseband data samples at a first sampling rate, corresponding to a first spectral region of the analog RF spectrum and a second set of baseband data samples at a second sampling rate, corresponding to a second spectral region of the analog RF spectrum. The logic device maps the first set and second sets of baseband data samples to a respective first set and second set of timeslots of a serial data stream transport frame. | 2013-01-03 |
20130003715 | CONNECTION SETUP FOR LOW ENERGY WIRELESS NETWORKS BASED ON MASTER DEVICE PACKET THAT INCLUDES TIMING INFORMATION - An apparatus includes a controller configured to cause a wireless transceiver to send and receive wireless packets. The controller is configured to receive a packet from another wireless device. The packet specifies a scan window length, a scan interval, and a start time. Based on the start time, scan interval, and a current time, the controller is configured to compute when a subsequent scan window will begin and the wireless transceiver does not transmit advertising packets until the subsequent scan window begins. | 2013-01-03 |
20130003716 | COMPACT BASE STATION APPARATUS AND FRAME TIMING DIFFERENCE INFORMATION ACQUIRING METHOD - Provided is a compact base station apparatus (HeNB) whereby frame timing can precisely be synchronized between HeNB and MeNB, thereby suppressing the interference in an upstream channel. In HeNB ( | 2013-01-03 |
20130003717 | Energy Based Communication Path Selection - A system and method for determining an information communication path based on energy requirements. Various aspects of the present invention provide a method that comprises identifying a plurality of information communication paths that may be utilized to communicate information (e.g., one or more units of information). A communication path identification module may perform such identification. Respective amounts of energy to communicate the information may be estimated for at least a portion of the identified plurality of information communication paths. A communication energy estimation module may perform such estimation. An information communication path may be selected from the identified plurality of information communication paths based, at least in part, on the estimated respective amounts of energy. A communication path selection module may perform such selection. | 2013-01-03 |
20130003718 | SELF-FORMING VOIP NETWORK - A self-forming VoIP connection capability is described that may be superimposed over wired networks, wireless networks, or combinations thereof. As described herein, a local network cluster forms while isolated from a conventional SIP server, or alternately may exist as a cluster of network nodes and clients that later becomes isolated from a conventional SIP server by a break in the network. Either way, each network node thus enabled with distributed SIP registry functionality according to this invention independently constructs a local SIP registry and SIP server capability within that node. Subsequently, while isolated from a conventional SIP server, VoIP conversations among client devices connected to nodes within an isolated cluster will continue, and nodes and clients may join or leave an isolated cluster with conversations able to be initiated or continued while a node has network connectivity to the cluster. | 2013-01-03 |
20130003719 | ENHANCED EMERGENCY SERVICES FOR FIXED WIRELESS CUSTOMER PREMISES EQUIPMENT - A gateway device, provided in a customer premises, receives a call from a user device, and detects dialed information associated with the call. The gateway device identifies the call as an emergency call based on the dialed information, and terminates all other calls communicated by the gateway device except for the emergency call. The gateway device notifies an outdoor broadband unit, associated with the customer premises, about the emergency call. | 2013-01-03 |
20130003720 | SYSTEM FOR AD-HOC COMMUNICATION SESSIONS - In one implementation, a guest device on an ad hoc network is permitted to initiate a communication session through a packet switched network depending on the destination endpoint of the communication session. A network device maintains a list of approved destination endpoints, which may be identified by telephone numbers, addresses, or uniform resource identifiers. The approved destination endpoints correspond to services that are offered to users of guest devices, such as voicemail, videoconferencing, or customer service. The network device receives a request for a communication session from a guest device, and the request includes data indicative of a destination endpoint. The network device compares the data indicative of the destination endpoint to the list of approved destination endpoints. If there is a match, the request is forwarded to a next hop router. If there is no match the request is dropped or returned to the guest device. | 2013-01-03 |
20130003721 | VOIP SERVER AND METHOD FOR MANAGING GEOGRAPHICAL INFORMATION - A method for managing geographical information of a plurality of Voice over Internet Protocol (VoIP) terminal devices using a VoIP server receives location information of the VoIP terminal devices from the VoIP terminal devices, stores geographical information of the VoIP terminal devices into a data sheet stored in a storage device of the VoIP server. The method detects a query from one of the VoIP terminal devices, retrieves the geographical information from the data sheet according to the query, and obtains an electronic map from the storage device. The method further populates the retrieved geographical information on the electronic map, and sends the electronic map to the VoIP terminal device corresponding to the location information. | 2013-01-03 |
20130003722 | VOICE COMMUNICATION OF DIGITS - The present invention relates to SIP networks and, more particularly, to digit collection in SIP networks. The SIP user communicates the digits to a Media Server through voice/speech. The Media Server collects the digits and checks to determine if the digits satisfy required Dual Tone Multi Frequency rules. The Media Server plays a prompt message to the SIP user to indicate start of session to collect the digits and the SEP user says character(s) to indicate that the SIP user has completed saying the digits. | 2013-01-03 |
20130003723 | Virtual PBX based on Feature Server Modules - A virtual private branch exchange is formed by a plurality of interconnected feature server modules, each having an integral feature server that is configured and operates independently of the other feature server modules. Within a virtual private branch exchange, the feature server modules may be logically arranged in a hierarchy having at least a main feature server module and one or more subordinate feature server modules. A particular feature server module may operate in multiple virtual private branch exchanges, and may have a distinct set of rules for handling calls originating in different virtual private branch exchanges. | 2013-01-03 |
20130003724 | METHOD AND APPARATUS FOR PROVIDING SHARED SERVICES - The present invention enables an overlay capability to be invoked on network systems and elements that are designed to support multiple customer bases. Depending on the registered identification of the user, screens and other user interfaces that provide access to functions can be overlaid on the network component and segmented along customer classifications. | 2013-01-03 |
20130003725 | Universal Network Interface Controller - A universal network interface controller (UNIC) is provided for interfacing a host computer to a switch fabric, a packet network, or both. The UNIC includes ingress transmit logic designed to transmit switch fabric data in memory associated with the host computer to a switch fabric. The UNIC further includes egress receive logic designed to receive switch fabric data from the switch fabric to store the received switch fabric data in the host memory associated with the host computer. As an option, the ingress transmit logic may be further designed to transmit packet network data in memory associated with the host computer to a packet network, such as Ethernet, and the egress receive logic may be further designed to receive the packet network data from the packet network and to store the received switch fabric data and the received packet network data in the host memory associated with the host computer. | 2013-01-03 |
20130003726 | METHODS AND APPARATUS RELATED TO A FLEXIBLE DATA CENTER SECURITY ARCHITECTURE - In one embodiment, edge devices can be configured to be coupled to a multi-stage switch fabric and peripheral processing devices. The edge devices and the multi-stage switch fabric can collectively define a single logical entity. A first edge device from the edge devices can be configured to be coupled to a first peripheral processing device from the peripheral processing devices. The second edge device from the edge devices can be configured to be coupled to a second peripheral processing device from the peripheral processing devices. The first edge device can be configured such that virtual resources including a first virtual resource can be defined at the first peripheral processing device. A network management module coupled to the edge devices and configured to provision the virtual resources such that the first virtual resource can be migrated from the first peripheral processing device to the second peripheral processing device. | 2013-01-03 |
20130003727 | HYBRID PORT RANGE ENCODING - In general, techniques are described for encoding port ranges. In one example, a method includes generating an encoded value that represents a specified port range including a first element storing an identifier that identifies a frequently occurring port range stored in an associative data structure of most frequently occurring port ranges, a second element storing an index that represents a dynamically-learned port range specifying at least a part of the specified port range, the dynamically-learned port range represented in a tree-structure of dynamically-learned port ranges and identified by the index, and applying, by a forwarding plane of the computing device, one or more filters associated with the encoded value to a packet that specifies a port included in the specified port range. | 2013-01-03 |
20130003728 | PROVIDING EXTENDED ADMINISTRATIVE GROUPS IN COMPUTER NETWORKS - In general, techniques are described for providing extended administrative groups in networks. A network device comprising an interface and a control unit may implement the techniques. The interface receives a routing protocol message that advertises a link. This message includes a field for storing first data associated with the link in accordance with the routing protocol. The field is defined by the routing protocol as a field having a different function from an administrative group field defined by the same routing protocol. The control unit determines that this field has been repurposed to store second data, wherein this second data specifies an extended administrative group for the link different from those that may be specified by the administrative group field. The control unit then updates routing information to associate the advertised link with the extended administrative group and performs path selection to select paths based on the updated routing information. | 2013-01-03 |
20130003729 | CLEARING FORWARDING ENTRIES DYNAMICALLY AND ENSURING CONSISTENCY OF TABLES ACROSS ETHERNET FABRIC SWITCH - One embodiment of the present invention provides a switch. The switch includes an ownership management mechanism and a notification mechanism. The ownership management mechanism maintains a local ownership association between the switch, and a medium access control (MAC) address learned at the switch and terminates the local ownership association for the MAC address. The notification mechanism generates a first notification indicating the local ownership association and a second notification indicating the termination of the local ownership association. | 2013-01-03 |
20130003730 | PATH SEARCH PROGRAM, PATH SEARCH APPARATUS AND PATH SEARCH METHOD - A computer-readable recording medium having stored therein a program for causing a computer to execute a process includes accepting a start node and finish node that are both terminuses for a circuit that is to be accommodated in a transmission network that includes a plurality of transmission lines, selecting, from the plurality of transmission lines, a transmission line whose arrangement order of arranging a plurality of nodes on the transmission line in an order of an indicated direction determined for the transmission line is the same as an order of the plurality of nodes determined in accordance with a cost order of the shortest path from a node at a terminus of the circuit to the plurality of nodes, and searching for a path from the circuit's start node to the circuit's finish node via the selected transmission line in the order of the indicated direction. | 2013-01-03 |
20130003731 | Link State Identifier Collision Handling - Methods and apparatus for a network element to handle LSID collisions to prevent different LSAs associated with different routes from sharing the same LSID. According to one embodiment, responsive to determining that a tentative LSID that is generated for a first route that is being added collides with an LSID that is assigned to an LSA for a second route, and that one of the first and second routes is a host route, the host route is suppressed. If the first route is the host route, suppressing includes not originating an LSA for the first route. If the second route is the host route, suppressing includes purging the LSA for the second route and not originating an LSA for the second route. Although the host route is suppressed, network reachability of the range subsuming the host route is provided through the route that is not the host route. | 2013-01-03 |
20130003732 | ABSTRACTING ACCEPTING INTERFACE TO OPTIMIZE PARENT AND CHILD ENTRY LOOKUP FOR BIDIRECTIONAL PIM - During operation the system identifying a multicast address in a packet. The system then determines a first entry in a first table, wherein the first entry maps a multicast group prefix and an accepting interface to a first logical reference. The system then determines a second entry in a second table, wherein the second entry maps the first logical reference and a multicast group address to forward packets to one or more forwarding interfaces. | 2013-01-03 |
20130003733 | MULTICAST IN A TRILL NETWORK - One embodiment of the present invention provides a switch. A switch includes a storage and a multicast management mechanism. The storage is configured to store an entry indicating a multicast group membership learned at a remote switch. The multicast management mechanism is coupled to the storage and is configured to suppress flooding of packets destined for the multicast group. | 2013-01-03 |
20130003734 | MESSAGE ROUTING MECHANISM FOR COMMUNICATION NETWORKS - A message routing method includes receiving a plurality of messages at a routing node. The routing node is configured to receive instructions indicating an offset, criteria associated with the offset, and a group of interested nodes. The routing node examines a portion of a data payload of a received message based on the offset. If the information at the offset matches the criteria, the routing node routes the message to each of the group of interested nodes. Thus, the routing node can route messages to different groups of destination nodes depending on information in the data payload of received messages, thereby providing a flexible way to route messages over a network. | 2013-01-03 |
20130003735 | DYNAMICALLY PROVISIONING MIDDLEBOXES - Hybrid security architecture (HSA) provides a platform for middlebox traversal in the network. The HSA decouples the middlebox control from network forwarding. More specifically, such embodiments may receive a data packet having a packet header including an Ethernet header identifying source and destination addresses in the network. A traffic type of the data packet is determined. Then, layer-2 forwarding information, which encodes a set of non-forwarding network service provider middleboxes in the network to be traversed by the data packet, is determined based on the traffic type. The layer-2 forwarding information is inserted into the Ethernet header and the data packet is forwarded into the network. The data packet will then traverse, according to the layer-2 forwarding information, a sequence of the middleboxes in the network, wherein at least one non-forwarding network service will be provided by each of the middleboxes to the data packet in a sequence. | 2013-01-03 |
20130003736 | VARIABLE-BASED FORWARDING PATH CONSTRUCTION FOR PACKET PROCESSING WITHIN A NETWORK DEVICE - In general, this disclosure describes techniques for applying, with a network device, subscriber-specific packet processing using an internal processing path that includes service objects that are commonly applied to multiple packet flows associated with multiple subscribers. In one example, a network device control plane creates subscriber records that include, for respective subscribers, one or more variable values that specify service objects as well as an identifier for a packet processing template. A forwarding plane of the network device receives and maps subscriber packets to an associated subscriber record and then processes the packet by executing the packet processing template specified by the subscriber record. When the forwarding plane reaches a variable while executing the specified packet processing template, the forwarding plane reads the associated variable value from the subscriber record to identify and then apply the subscriber-specific service object specified by the variable. | 2013-01-03 |
20130003737 | E-TREE USING TWO PSEUDOWIRES BETWEEN EDGE ROUTERS WITH ENHANCED LEARNING METHODS AND SYSTEMS - An e-tree service that includes establishing two pseudowires (PW) between edge network elements with enhanced address learning is described. In one embodiment, a root PW and a leaf PW are used for carrying packets from a root node and from a leaf node, respectively. When a network element receives a packet on the root PW, the network element associates the source Media Access Control (MAC) address of the packet with the logical port associated with the root PW in a root PW MAC address table, and also associates the source MAC address with the logical port associated with the leaf PW in a leaf PW MAC address table. When a network element receives a packet on the leaf PW, the network element associates the source MAC address of this packet with the logical port that is associated with the root PW in the root PW MAC address table. | 2013-01-03 |
20130003738 | TRILL BASED ROUTER REDUNDANCY - One embodiment of the present invention provides a switching system. The switching system includes a Transparent Interconnection of Lots of Links (TRILL) header processor and an Internet Protocol (IP) header processor. The TRILL header processor is configured to identify a virtual routing bridge (RBridge) identifier in a packet, and the IP header processor is configured to identify a virtual IP address in the packet. The virtual IP address is assigned to a virtual IP router associated with the virtual RBridge identifier. | 2013-01-03 |
20130003739 | SCALABLE MAC ADDRESS DISTRIBUTION IN AN ETHERNET FABRIC SWITCH - One embodiment of the present invention provides a switch. The switch includes a notification mechanism. The notification mechanism constructs a single message that contains a locally learned MAC address associated with a local device, a TRILL RBridge identifier associated with the switch, and an identifier of an interface associated with the MAC address. In some embodiments, the switch includes a data structure and an entry management mechanism. The data structure stores device information learned at a remote switch, wherein the device information includes a MAC address of a device, a TRILL RBridge identifier associated with the remote switch, an identifier of an interface coupled to the device, and a type indicator of the MAC address. The entry management mechanism manages an entry in the data structure based on the RBridge identifier and the interface identifier. | 2013-01-03 |
20130003740 | METHOD, APPARATUS, AND SYSTEM FOR DISTRIBUTING LABEL IN SEAMLESS MULTI-PROTOCOL LABEL SWITCHING NETWORK - The present invention discloses a method, apparatus, and system for allocating a label in a seamless multi-protocol label switching network, which greatly reduces the complexity of the access node device, effectively cuts down the operation costs for the operator, and enhances the scalability of the system. The method includes: obtaining label information of a first access node, where the label information comprises the pseudowire PW destination address of the first access node; and sending the label information to a second router by using a BGP message or a T-LDP message so that the second router configures a PW label and/or a flow label of the first access node to a second access node by using the access network configuration protocol according to the label information. | 2013-01-03 |
20130003741 | Dynamic, Condition-Based Packet Redirection - In one embodiment, at a packet-forwarding engine for receiving packet flows and conditionally routing packets in the packet flows to one or more applications, a method includes receiving from a particular one of the applications a request that requests the packet-forwarding engine not to route the particular one of the packet flows to the particular one of the applications and identifies one or more conditions for routing particular ones of the packets in the particular one of the packet flows to the particular one of the applications. The method further includes, receiving a particular packet in the particular one of the packet flows, determining whether one or more of the conditions for routing the particular packet to the particular one of the applications are met, and routing or not routing the particular packet to the particular one of the applications based on the determination. | 2013-01-03 |
20130003742 | ROUTING INFORMATION GENERATING APPARATUS, ROUTING INFORMATION GENERATING METHOD AND ROUTING INFORMATION GENERATING PROGRAM - Network connecting sections of an own station deliver routing information notified from a relay section on the same base to network connecting sections of other stations of own networks. If new routing information is present in routing information received from the network connecting sections of the other stations, the network connecting sections of the own station notify the relay section on the same base of the routing information. The relay section updates, based on the routing information notified from the network connecting sections on the same base, routing information held by the relay section. | 2013-01-03 |
20130003743 | SELECTIVE ROUTING TO GEOGRAPHICALLY DISTRIBUTED NETWORK CENTERS FOR PURPOSES OF POWER CONTROL AND ENVIRONMENTAL IMPACT - In general, this disclosure describes techniques of selecting routes for network packets through a computer network based, at least in part, on electrical power procurement arrangements of devices in the computer network. A computing system includes a hardware processor and a database storing power procurement profiles. Each of the power procurement profiles stores data indicating an arrangement between an operator of one or more of routing devices to procure electrical power from a utility company for facilities in which the routing devices are located. The power procurement profiles are mapped to ranges of network addresses associated with the facilities for retrieval of the power procurement profiles for the routers based on the network addresses assigned to the routers. | 2013-01-03 |
20130003744 | COMMUNICATION NODE APPARATUS, COMMUNICATION SYSTEM, AND METHOD FOR SELECTING DESTINATION RECEPTION INTERFACE USED THEREFOR - Provided is a communication node apparatus that can attempt optimal utilization of a communication resource of a communication interface mounted on each node apparatus. A communication node apparatus (transmission node apparatus | 2013-01-03 |
20130003745 | INFORMATION SYSTEM, CONTROL DEVICE, METHOD OF MANAGING VIRTUAL NETWORK, AND PROGRAM - An information system includes a plurality of forwarding nodes having a packet processing unit that performs processing of a received packet using a processing rule conforming to the received packet; and a control device causing plurality of forwarding nodes to operate as a virtual network by setting a processing rule in the forwarding nodes. The control device includes a virtual network path information storage unit that stores a correspondence relationship between the virtual network and a forwarding path configured by the forwarding nodes; and a virtual network control unit that identifies a virtual network affected by a change in a state of any forwarding node among the plurality of forwarding nodes, by referring to the virtual network path information storage unit. | 2013-01-03 |
20130003746 | Power Management in Hybrid Networks - Disclosed are various embodiments for power management in hybrid networks. In one embodiment, a network power manager is configured to manage power consumption in a hybrid network by controlling an operational state of a plurality of ports in a plurality of nodes of the hybrid network. The hybrid network comprises a plurality of interconnected networks, where each interconnected network employs a corresponding one of a plurality of communication mediums, and each of the communication mediums is unique with respect to each other. | 2013-01-03 |
20130003747 | EFFICIENT TRILL FORWARDING - One embodiment of the present invention provides a switch. The switch includes a storage and a lookup mechanism. The storage stores a first table that contains an entry corresponding to a media access control (MAC) address of a device and an identifier of a remote switch associated with the device. The storage also stores a second table that contains an entry indicating a local outgoing interface corresponding to the remote switch. The lookup mechanism identifies the local outgoing interface corresponding to the device based on the first table and the second table. | 2013-01-03 |
20130003748 | RELAY APPARATUS AND RELAY CONTROL METHOD - A relay apparatus includes: a receiver to receive a control message including a communication traffic amount of data sent from a first node on a first side; a total communication traffic amount notifying unit to calculate a total of communication traffic amounts included in a control message for each the first node and to notify a second node on a second side of a calculated total communication traffic amount; and an upper-limit communication traffic amount notifying unit to distribute a first upper-limit communication traffic amount of a line coupled to the second node or a second upper-limit communication traffic amount supplied from the second node in accordance with a proportion of a communication traffic amount included in the control message so as to determine a third upper-limit communication traffic amount of data transfer at the first node, and to notify the first node of the third upper-limit communication traffic amount. | 2013-01-03 |
20130003749 | CONTROLLING A DEVICE OF A REMOTE NETWORK FROM A LOCAL NETWORK - A method and apparatus are provided for controlling at least one UPnP device of a remote network from a local network by a local relay module of the local network, which is able to communicate with at least one remote relay module of a remote network. The relay module obtains, via the remote relay module, at least one identifier of a UPnP device detected in the remote network by a UPnP monitoring point associated with this remote relay module, and records at least one identifier received in association with identification data of the remote relay module having provided this identifier. The relay module controls a UPnP device of the remote network by way of the monitoring point associated with the remote relay module, identified by the identification data recorded in association with an identifier of this UPnP device. | 2013-01-03 |
20130003750 | ANALYZING A NETWORK WITH A CACHE ADVANCE PROXY - In an example embodiment described herein, there is disclosed an implementation for analyzing a network having cache advance (CA) segments, such as a session control protocol (SCTP) pipe. The path between endpoints, e.g. a client on a first local area network (LAN) and a server on a second LAN, wherein the first and second LAN are coupled by an SCTP pipe, is determined and properties of the path are acquired. | 2013-01-03 |
20130003751 | METHOD AND SYSTEM FOR EXPONENTIAL BACK-OFF ON RETRANSMISSION - A method for exponential back-off on retransmission includes queuing a packet of a message in a completion module with an initial transport timeout, transmitting the packet of the message to a responder node, and applying an exponential timeout formula to the initial transport timeout to obtain an exponentially increased transport timeout for a first retransmission. After determining the initial transport timeout has lapsed, the method further includes requeuing the packet with the exponentially increased transport timeout, and retransmitting the packet to the responder node. The method further includes, after determining the exponentially increased transport timeout has lapsed, retransmitting the packet to the responder node. | 2013-01-03 |
20130003752 | Method, Network Device, Computer Program and Computer Program Product for Communication Queue State - Aspects of the disclosure provide a method for communicating queue information. The method includes determining a queue state for each one of a plurality of queues at least partially based on respective queue length, selecting a queue with a greatest difference between the queue state of the queue and a last reported queue state of the queue, and reporting the queue state of the selected queue to at least one node. | 2013-01-03 |
20130003753 | DISTRIBUTING CONTROL PLANE PROCESSING - A network device includes shelf controllers and interface unit controllers. An interface unit controller, of the interface unit controllers, is configured to receive a message from a different network device; determine whether a session exists for the message; identify a shelf controller, of the shelf controllers, based on the session when the session exists for the message; select the shelf controller, to receive the message, based on a load or mapping of the shelf controller when the session does not exist for the message; and transmit the message to the shelf controller. The shelf controller is configured to program a connection via a data plane of the network device. | 2013-01-03 |
20130003754 | Automation System - The invention relates to a method for transmitting data in an automation system with cyclic data transmission, wherein data are divided into fragments and the fragments are transmitted together with a fragment information item to the opposite side. In this case, a fragment is transmitted until the opposite side sends back a corresponding confirmation in the fragment information item. | 2013-01-03 |
20130003755 | PRIORITY-AWARE HIERARCHICAL COMMUNICATION TRAFFIC SCHEDULING - Priority-aware hierarchical communication traffic scheduling methods and apparatus are disclosed. Communication traffic is scheduled by schedulers. Each scheduler supports a multiple priority scheduling function to schedule communication traffic having any of multiple priorities. The communication traffic scheduled by the schedulers is further scheduled based on the priorities of the communication traffic scheduled by each of the schedulers. Traffic shaping may also be integrated into a hierarchical scheduler. The priority-aware further scheduling and the optional shaping may be implemented, for example, using multiple Active lists, one per traffic priority, and a Pending list to which a scheduler can be added if it has communication traffic to schedule but is not allowed to schedule that traffic due to the shaping. | 2013-01-03 |
20130003756 | METHODS AND SYSTEM FOR INCREASING DATA TRANSMISSION RATES ACROSS A THREE-PHASE POWER SYSTEM - A method for providing information by optimizing the data rate to a vehicle over a three-phase power line utilized to provide power to the vehicle is described. The method includes generating carrier signals in three separate frequency bands, modulating various data onto the three carrier signals to generate three transmission signals, switching the three transmission signals onto respective conductors of the three-phase power line, demodulating the various data within the vehicle, and providing the various data to one or more vehicle systems. The three transmission signals are dynamically monitored such that the three frequency bands are controlled to optimize a data rate of the transmission. | 2013-01-03 |
20130003757 | SYNTONIZED COMMUNICATION SYSTEM - A computing device may include a processor, an internal bus, and a network interface controller configured to communicate over a network. The processor and the network interface controller may communicate over the internal bus. The computing device may operate in a system that generates one or more media streams from time-stamped packets received over a network. The packets may include audio, video, or a combination of both, sampled at a rate determined by a master media clock. Timestamps in the packets may be presentation times based on values of a remote real-time clock at the transmitter that is synchronized with a local real-time clock at a receiver. The system may generate the media streams from the media stream samples and present the sampled data according to the presentation times. | 2013-01-03 |
20130003758 | DATA PROCESSING APPARATUS AND METHOD FOR USE IN A 0.5K MODE INTERLEAVER IN A DIGITAL VIDEO BROADCASTING STANDARD INCLUDING DVB-TERRESTRIAL2 - A data processing apparatus maps input symbols to be communicated onto a predetermined number of sub-carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number of data symbols for mapping onto the OFDM sub-carrier signals. The interleaver memory reads-out the data symbols on to the OFDM sub-carriers to effect the mapping, the read-out being in a different order than the read-in, the order being determined from a set of addresses, with the effect that the data symbols are interleaved on to the sub-carrier signals. The set of addresses are generated from an address generator which comprises a linear feedback shift register and a permutation circuit. | 2013-01-03 |
20130003759 | TECHNIQUE FOR BANDWIDTH EFFECTIVE TRAFFIC PROTECTION IN COMMUNICATION NETWORKS - Technology for reducing bandwidth consumption in an Ethernet network, by dynamic selection of one copy of traffic services (per protection group) for transmitting to a remote Ethernet node from a multi-homing node. The dynamic selection is performed during a normal (full) working condition of the multi-homing node. In case the multi-homing node condition changes to a partially working condition, selection of the services per protection group depends on the remaining working facilities of the multi-homing node. | 2013-01-03 |
20130003760 | DIVISION OF BIT STREAMS TO PRODUCE SPATIAL PATHS FOR MULTICARRIER TRANSMISSION - A device for bit-demultiplexing in a multicarrier MIMO communication system (e.g. precoded spatial multiplexing MIMO communication systems using adaptive OFDM), including a multicarrier MIMO transmitter and a multicarrier MIMO receiver. The multicarrier MIMO transmitter includes a demultiplexer and symbol mapper unit receiving an input bit stream and generating a plurality of symbol streams, each symbol stream being associated with a different transmission channel and including a plurality of data symbols, each data symbol being attributed to a different carrier; one or more multicarrier modulators generating at least two multicarrier modulated signals based on the symbol streams; and at least two transmit ports respectively transmitting the at least two multicarrier modulated signals, wherein a data throughput rate of each transmission channel is separately variable. | 2013-01-03 |
20130003761 | MODE-LOCKED OPTICALLY PUMPED SEMICONDUCTOR LASER - A laser includes an optically pumped semiconductor OPS gain-structure. The apparatus has a laser-resonator which includes a mode-locking device for causing the laser to deliver mode-locked pulses. The resonator has a total length selected such that the mode-locked pulses are delivered at a pulse repetition frequency of about 100 MHz. An optical arrangement within the resonator provides that radiation circulating in the resonator makes a plurality of incidences on the OPS gain-structure with a time less than the excited-state lifetime of the gain-structure between successive incidences. | 2013-01-03 |
20130003762 | WAVELENGTH TUNABLE LASER DIODE - A wavelength tunable laser diode (LD) is disclosed. The LD provides a SG-DFB region and a CSG-DBR region. The SG-DFB region shows a gain spectrum with a plurality of gain peaks, while, the CSG-DBR region shows a reflection spectrum with a plurality of reflection peaks. The LD may emit light with a wavelength at which the one of the gain peaks and one of the reflection peaks coincides. In the present LD, both the gain spectrum and the reflection spectrum are modified by adjusting the temperature of the SG-DFB region and that of the CSG-DBR region independently. | 2013-01-03 |
20130003763 | APPARATUS FOR ADJUSTING POLARIZATION CHARACTERISTICS, AND ULTRA-SHORT ULTRA-HIGH INTENSITY PULSE LASER GENERATOR COMPRISING SAME - The present invention relates to an apparatus for generating an ultra-short ultra-high intensity pulse laser, comprising: a pulse laser providing unit which generates an ultra-short ultra-high intensity pulse laser, stretches pulse width, then selects and provides only a pulse laser having a predetermined polarizing angle; a polarization characteristic adjusting unit which divides the pulse laser provided by the pulse laser providing unit into S-polarizing component light and P-polarizing component light, varies the phase difference and amplitude difference between the S-polarizing component light and the P-polarizing component light, and combines the two types of light to generate a pulse laser with varied polarization characteristics; and a pulse compression unit which compresses the pulse width of the pulse laser, the polarization characteristics of which are varied by the polarization characteristic adjusting unit, and outputs the pulse laser. | 2013-01-03 |
20130003764 | LASER DIODE ARRANGEMENT - A laser diode arrangement having a multiplicity of laser diodes ( | 2013-01-03 |
20130003765 | THERMO-ELECTRIC COOLING SYSTEM AND METHOD FOR COOLING ELECTRONIC DEVICES - A thermo-electric cooling (TEC) system is presented for cooling of a device, such a laser for example. The TECT system comprises first and second heat pumping assemblies, and a control unit associated at least with said second heat pumping assembly. Each heat pumping assembly has a heat source from which heat is pumped and a heat drain through which pumped heat is dissipated. The at least first and second heat pumping assemblies are arranged in a cascade relationship having at least one thermal interface between the heat source of the second heat pumping assembly and the heat drain of the first heat pumping assembly, the heat source of the first heat pumping assembly being thermally coupled to the electronic device which is to be cooled by evacuating heat therefrom. The control unit is configured and operable to carry out at least one of the following: (i) operating said second heat pumping assembly to provide a desired temperature condition such that temperature of the heat drain of said first heat pumping assembly is either desirably low or by a certain value lower than temperature of the heat source of said first heat pumping assembly; and (ii) operating said second heat pumping assembly to maintain predetermined temperature of said thermal interface. | 2013-01-03 |
20130003766 | COMPACT OPTICAL ATOMIC CLOCKS AND APPLICATIONS BASED ON PARAMETRIC NONLINEAR OPTICAL MIXING IN WHISPERING GALLERY MODE OPTICAL RESONATORS - Techniques and devices based on optical resonators made of nonlinear optical materials and nonlinear wave mixing to generate optical combs that are stabilized relative to an atomic reference. | 2013-01-03 |
20130003767 | SEMICONDUCTOR LASER DEVICE AND CIRCUIT FOR AND METHOD OF DRIVING SAME - A directly driven laser includes multiple contacts, with at least one of the contacts for injecting current into the laser such that the laser reaches at least a lasing threshold and at least one of the contacts for providing a data signal to the laser. In some embodiments a differential data signal is effectively provided to a front and a rear section of the laser, while lasing threshold current is provided to a central portion of the laser. | 2013-01-03 |
20130003768 | PHOTONIC CRYSTAL LASER - A photonic crystal laser capable of producing a radially-polarized halo-shaped laser beam having a smaller width than conventional beams includes: an active layer; a ring-shaped photonic crystal including a plate-shaped base body on one side of the active layer, the base body having a number of modified refractive index areas of the same shape, the modified refractive index areas having a refractive index different from the base body and periodically arranged in the circumferential direction of a ring, and each of the modified refractive index areas being asymmetrically shaped with respect to an axis extending through the center of the modified refractive index area in the radial direction of the ring; a first and second electrode facing each other across the active layer and the ring-shaped photonic crystal; and a window provided in the second electrode capable of allowing passage of a laser light generated from the ring-shaped photonic crystal. | 2013-01-03 |
20130003769 | GALLIUM NITRIDE-BASED SEMICONDUCTOR LASER DEVICE, AND METHOD FOR FABRICATING GALLIUM NITRIDE-BASED SEMICONDUCTOR LASER DEVICE - A gallium nitride-based semiconductor laser device with reduced threshold current. The gallium nitride-based semiconductor laser device is provided with an n-type cladding layer, an n-side light guide layer, an active layer, a p-side light guide layer, and a p-type cladding layer. The n-side light guide layer and the p-side light guide layer both contain indium. Each of indium compositions of the n-side light guide layer and the p-side light guide layer is not less than 2% and not more than 6%. A film thickness of the n-type cladding layer is in the range of not less than 65% and not more than 85% of a total of the film thickness of the n-type cladding layer and a film thickness of the p-type cladding layer 23. | 2013-01-03 |
20130003770 | Interband Cascade Lasers - A gain medium and an interband cascade laser, having the gain medium are presented. The gain medium can have one or both of the following features: (1) the thicknesses of the one or more hole quantum wells in the hole injector region are reduced commensurate with the thickness of the active hole quantum well in the active quantum well region, so as to place the valence band maximum in the hole injector region at least about 100 meV lower than the valence band maximum in the active hole quantum well; and (2) the thickness of the last well of the electron injector region is between 85 and 110% of the thickness of the first active electron quantum well in the active gain region of the next stage of the medium. A laser incorporating a gain medium in accordance with the present invention can emit in the mid-IR range from about 2.5 to 8 μm at high temperatures with room-temperature continuous wave operation to wavelengths of at least 4.6 μm, threshold current density of about 400 A/cm | 2013-01-03 |
20130003771 | DISTRIBUTED FEEDBACK LASER DIODE HAVING ASYMMETRIC COUPLING COEFFICIENT AND MANUFACTURING METHOD THEREOF - Provided are a distributed feedback laser diode and a manufacturing method thereof. The distributed feedback laser diode includes a first area having a first grating layer disposed in a longitudinal direction, a second area disposed adjacent to the first area and having a second grating layer disposed in the longitudinal direction, and an active layer disposed over the first and second areas. Coupling coefficients of the first and second grating layers are made different in the first and second areas by a selective area growth method. The distributed feedback laser diode includes grating layers each having an asymmetric coefficient and is implemented within an optimal range capable of obtaining both a high front facet output and stable single mode characteristics. Thus, high manufacturing yield and low manufacturing cost can be achieved. | 2013-01-03 |
20130003772 | Molecular gas laser - The closed cycle solid state optically pumped gas hybrid (chemical recovery) system utilizes a laser diode excited solid state, fiber or bulk, laser as a pump for a molecular gas, or gas mix, medium. The existence of efficient high power laser diode excited solid state fiber or bulk lasers, output spectrally matched to suitable principle and excited level 1st and 2nd overtones of relevant gases, is the enabling system technology. The utilization of such in combination with suitable gases introduces a range of viable, in principle sourcing on laser diodes and thus effectively laser diode pumped, gas laser systems with access to the ˜3.5 μm to ˜5.2 μm and ˜9 μm to ˜11 μm spectral region. Continuous wave or pulsed operation, with significant energy capability courtesy of solid state storage, is admitted. | 2013-01-03 |
20130003773 | System and Method for Automatic Gas Optimization in a Two-Chamber Gas Discharge Laser System - A system and method for automatically performing gas optimization after a refill in the chambers of a two chamber gas discharge laser such as an excimer laser is disclosed. The laser is continuously fired at a low power output, and the gas in the amplifier laser chamber bled if necessary until the discharge voltage meets or exceeds a minimum value without dropping the pressure below a minimum value. The power output is increased, and the gas bled again if necessary until the voltage and pressure meet or exceed the minimum values. The laser is then fired in a burst pattern that approximates the expected firing of the laser in operation, and the gas bled if necessary until the discharge voltage meets or exceeds the minimum value and the output energy meets or exceeds a minimum value, again without dropping the pressure in the chamber below the minimum value. Once the minimum values are provided, the process runs quickly without manual interaction. | 2013-01-03 |
20130003774 | CO2 laser - Efficient laser diode excited Thulium (Tm) doped solid state systems, directly matched to a combination band pump transition of Carbon Dioxide (CO | 2013-01-03 |
20130003775 | CO2 laser - Efficient laser diode excited Thulium (Tm) doped solid state systems, directly matched to a combination band pump transition of Carbon Dioxide (CO | 2013-01-03 |
20130003776 | Zero-Heat-Flux, Deep Tissue Temperature Measurement Devices with Thermal Sensor Calibration - A zero-heat-flux DTT measurement device is constituted of a flexible substrate supporting an electrical circuit including a heater trace defining a heater, thermal sensors, and a thermal sensor calibration circuit. | 2013-01-03 |
20130003777 | Multi Wavelength DTS Fiber Window with PSC Fiber - A DTS system resistant to hydrogen induced attenuation losses during the service life of an installation at both low and high temperatures using matched multi-wavelength DTS automatic calibration technology in combination with designed hydrogen tolerant Pure Silica Core (PSC) optical fibers. | 2013-01-03 |
20130003778 | METHOD FOR EVALUATING AN EXHAUST GAS TEMPERATURE IN A EXHAUST PIPE OF AN INTERNAL COMBUSTION ENGINE - A method for determining a value of an exhaust gas temperature in a predetermined position along an exhaust pipe of an internal combustion engine is provided. The method includes measuring a value of an exhaust gas temperature in the exhaust pipe with a temperature sensor and measuring a value of a pressure within a cylinder of the internal combustion engine with a pressure sensor. A value of an exhaust gas temperature in the exhaust pipe is estimated based on the measured pressure value. Whether the internal combustion engine is operating under a transient condition or not is detected. The value of the exhaust gas temperature in the predetermined position is determined based on the measured exhaust gas temperature value, if the transient condition is not detected. Otherwise, the value of the exhaust gas temperature in the predetermined position is determined based on the estimated exhaust gas temperature value. | 2013-01-03 |
20130003779 | WIRELESS MEASURING APPARATUS AND WIRELESS TEMPERATURE MEASUREMENT SYSTEM - There is provided a wireless measuring apparatus that efficiently measures the frequency characteristics of a sensor unit mounted on an object to be measured. The wireless measuring apparatus is a wireless measuring apparatus that measures the frequency characteristics of a sensor unit ( | 2013-01-03 |
20130003780 | Device For Determining A Physical Value Of A Liquid Flowing In A Pipe - A device for determining a physical value of a liquid flowing in a pipe, without contact with said liquid, said device comprising:
| 2013-01-03 |
20130003781 | SEMICONDUCTOR DEVICE INCLUDING A TEMPERATURE SENSOR CIRCUIT - A semiconductor device including a temperature sensor includes a pull up circuit, a pull down circuit, a first additional current path, and a second additional current path. The pull up circuit is configured to generate a pull up current that contributes to generation of a first output current. The pull down circuit is operably coupled to the pull up circuit at an output node and configured to generate a pull down current that contributes to generation of a second output current. The first additional current path, when enabled, is configured to combine a first additional current with the pull up current to comprise the first output current. The second additional current path, when enabled, is configured to combine a second additional current with the pull down current to comprise the second output current. Respective enablement of the first additional current path and the second additional current path is complementary. | 2013-01-03 |
20130003782 | SENSOR MOUNTING METHODOLOGY - Methods and devices for mounting a sensor are presented herein. A temperature sensor assembly for a capacitor bank is disclosed that includes two opposing substrates, and a plurality of contact temperature sensors attached to each substrate. Each temperature sensor is configured to directly contact a surface of one of the capacitor cans in the capacitor bank and therefrom generate a signal indicative of the temperature of the capacitor can. A biasing member attaches the two substrates together. The biasing member is configured to selectively contract, such that the width of the sensor assembly is less than the gap distance between adjacent sets of tandem capacitor cans and the sensor assembly can insert between the sets of capacitor cans, and expand, such that the width of the sensor assembly is greater than the gap distance and the sensor assembly is tensioned against and thereby secured between the sets of capacitor cans. | 2013-01-03 |
20130003783 | GLOBAL NAVIGATION SATELLITE SYSTEM RECEIVER WITH FILTER BYPASS MODE FOR IMPROVED SENSITIVITY - A global navigation satellite system receiver with filter bypass mode for improved sensitivity is disclosed. In an aspect, an apparatus is provided that includes a non-bypass signal path coupled to a receiver, the non-bypass signal path comprising a filter. The apparatus also includes a bypass signal path coupled to the receiver, the bypass signal path configure to bypass the filter, and a switch to couple an antenna to the non-bypass signal path during time intervals when signals transmitted by an unrelated local transmitter are transmitted with a signal power that exceeds a selected threshold, and to couple the antenna to the bypass signal path during other time intervals. | 2013-01-03 |
20130003784 | TRANSMITTING AND RECEIVING SCHEMES FOR MULTIUSER SINGLE-CARRIER SPACE TIME SPREADING WITH FREQUENCY DOMAIN EQUALIZATION - Examples are disclosed for transmitting and receiving schemes for multiuser single-carrier space time spreading (STS) with frequency domain equalization. | 2013-01-03 |
20130003785 | Method and System for Interference Suppression Using Information From Non-Listened Base Stations - Aspects of a method and system for interference suppression using information from non-listened base stations are provided. A wireless communication device may be operable to receive a raw signal comprising one or more desired signals from one or more serving base transceiver stations (BTSs) and comprising one or more undesired signals from one or more non-listened BTSs. The wireless communication device may be operable to generate first estimate signals that estimate the one or more undesired signals as transmitted by the one or more non-listened BTSs, generate an interference suppressed version of the raw signal based on the first estimate signals, and recover the one or more desired signals from the interference suppressed version of the raw signal. The non-listened BTSs may comprise one or more BTSs that are not serving the wireless communication device and are not involved in a hand off of the wireless communication device. | 2013-01-03 |
20130003786 | SYNCHRONIZATION ACQUISITION METHOD OF REAL TIME LOCATING SYSTEM - Provided are a method for dynamically acquiring a PN synchronization of a blink signal in a reader according to a channel state when a tag transmits a direct sequence spread spectrum (DSSS) blink signal having a predetermined period and the reader receives the blink signal in a 2.4 GHz RTLS system which complies with an ISO/IEC24730-2 standard, and a method for synchronizing a frame using a preamble. | 2013-01-03 |
20130003787 | SYSTEM AND METHOD FOR TESTING TIMING OPERATIONS OF A PULSE-BASED TRANSCEIVER - The disclosure relates to an apparatus and method of testing timing associated with the transmission and reception of a pulse signal. With regard to testing the transmission of the signal, a transmitter transmits a pulse within a selected hop offset subinterval of a hop interval. The receiver takes samples of the received signal for the entire duration of the hop interval. Successful timing operation is indicated when samples indicate a pulse received within the selected subinterval, and no pulses received within other subintervals of the hop interval. With regard to testing the reception of the signal, a transmitter transmits pulses within respective hop offset subintervals of a hop interval. The receiver is enabled only for the duration of a selected subinterval, but samples are taken for the entire duration of the hop interval. Successful timing operation is indicated when the samples indicate a pulse received within the selected subinterval, and no pulses received within other subintervals. | 2013-01-03 |
20130003788 | COMMUNICATING CHANNEL STATE INFORMATION (CSI) OF MULTIPLE TRANSMISSION POINTS - Embodiments contemplate methods and systems for determining and communicating channel state information (CSI) for one or more transmission points (or CSI reference signal resources). Embodiments further contemplate determining transmission states may include applying at least one transmission state parameter to channel state information (CSI). Embodiments also contemplate reporting CSI based on the transmission state and/or at least one transmission state parameter applied thereto. | 2013-01-03 |
20130003789 | WIRELESS COMMUNICATION METHOD AND APPARATUS USING ADAPTIVE TRANSMISSION POLARIZATION CONTROL - A wireless communication method and apparatus using adaptive transmission polarization control are provided. The wireless communication apparatus includes an orthogonal polarization antenna, a channel state estimator, and a transmission polarization state (TPS) selector. The orthogonal polarization antenna receives at least one reference signal. The channel state estimator estimates a wireless polarization channel on the basis of the reference signal. The TPS selector selects a TPS corresponding to the estimated wireless polarization channel from among a plurality of predefined TPSs, and feeds back the selected TPS information. Accordingly, the wireless communication apparatus feeds back information for polarization control using minimum uplink wireless resources, and maximizes a transmission capacity on the basis of the feedback information. | 2013-01-03 |
20130003790 | Method for the spectral configuration of signals modulated by means of orthogonal frequency division multiplexing (ofdm) for an electrical network - A transceiver includes a transmitter and a receiver. The transmitter receives a first orthogonal frequency division multiplexing (OFDM) signal, and generates a first analog signal based on the first OFDM signal. The first OFDM signal has a first bandwidth, a first spectral position, and a first frequency spectrum. The first frequency spectrum of the first OFDM signal has a first set of frequencies with first amplitudes. The receiver receives a second analog signal, and generates a second OFDM signal based on the second analog signal. The second OFDM signal has a second bandwidth, a second spectral position, and a second frequency spectrum. The second frequency spectrum of the second OFDM signal has a second set of frequencies with second amplitudes. The transmitter varies the first bandwidth, the first spectral position, and the first amplitudes independent of the second bandwidth, the second spectral position, and the second amplitudes. | 2013-01-03 |
20130003791 | Multi-User MIMO Systems and Methods - A method and system are provided for scheduling data transmission in a Multiple-Input Multiple-Output (MIMO) system. The MIMO system may comprise at least one MIMO transmitter and at least one MIMO receiver. Feedback from one or more receivers may be used by a transmitter to improve quality, capacity, and scheduling in MIMO communication systems. The method may include generating or receiving information pertaining to a MIMO channel metric and information pertaining to a Channel Quality Indicator (CQI) in respect of a transmitted signal; and sending a next transmission to a receiver using a MIMO mode selected in accordance with the information pertaining to the MIMO channel metric, and an adaptive coding and modulation selected in accordance with the information pertaining to the CQI. | 2013-01-03 |
20130003792 | RECEIVING CIRCUIT, TRANSMITTING CIRCUIT, MICRO-CONTROLLER AND METHOD FOR POWER LINE CARRIER COMMUNICATION - A receiving circuit, a transmitting circuit, a micro-controller, and a method for power line carrier communication. The receiving circuit includes: an analog amplifier, a receiving filter, an analog-to-digital converter, a digital mixer, a digital filter, and a digital demodulator connected successively. The transmitting circuit includes: a digital modulator, a gain controller, a digital-to-analog converter, a transmitting filter, and a transmitting amplifier connected successively. The micro-controller includes a central processor and the receiving circuit or the transmitting circuit. The method for power line carrier communication can be implemented based on the receiving circuit or the micro-controller. The receiving circuit, the transmitting circuit, the micro-controller, and the method for power line carrier communication provided by present invention solve the defect of supporting only one modulation or demodulation mode in a conventional power line carrier communication system, and can process a power line carrier signal in different modulation or demodulation modes. | 2013-01-03 |
20130003793 | MOBILE WIRELESS COMMUNICATIONS DEVICE WITH SEPARATE IN-PHASE AND QUADRATURE POWER AMPLIFICATION - A mobile wireless communications device includes a housing an antenna, and radio frequency (RF) circuitry. A transceiver is connected to the antenna and a processor is operative with the RF circuitry. The transceiver includes an In-phase and Quadrature (I/Q) Modulation and Power Amplification circuit having an In-phase (I) circuit with a modulator mixer and power amplifier circuit. A Quadrature (Q) circuit includes a modulator mixer and power amplifier circuit. A power combiner receives the separately amplified In-phase and Quadrature signals and sums and outputs the signals as a combined I and Q signal. The I and Q circuits are isolated from the combined I and Q signal to enhance antenna matching and transmitted radiated power (TRP) and reduce harmonic emission from the power amplification circuits. | 2013-01-03 |
20130003794 | MULTI-MODE IC WITH MULTIPLE PROCESSING CORES - An integrated circuit (IC) includes a first processing module that converts inbound data into an inbound digital audio signal and converts an outbound digital audio signal into outbound data. A second processing module performs a user application that includes at least one of generating of an inbound analog audio signal and generating an outbound analog audio signal. A third processing module performs an operating system algorithm to coordinate operation of at least one user application. | 2013-01-03 |
20130003795 | Space-Time Block Coding Systems and Methods - Although orthonormal space-time coding matrices provide for optimal communication system performance in that associated correlation matrices include no non-zero off-diagonal elements, unity code rate orthonormal coding matrices are difficult to identify for arbitrary communication network equipment. According to embodiments of the present invention, non-orthonormal space-time coding matrices, for which associated correlation matrices include non-zero off-diagonal elements, are used to encode data symbols. The non-orthonormal space-time coding matrices are more easily determined, and undesirable effects of the non-zero off-diagonal components are reduced by selecting a coding matrix from among a number of such matrices. For example, a particular space-time coding matrix may be selected from a number of generated space-time coding matrices based on a number of non-zero off-diagonal elements or a power of a trace of the associated correlation matrices. | 2013-01-03 |
20130003796 | IC WITH MIXED MODE RF-TO-BASEBAND INTERFACE - An integrated circuit (IC) includes at least one baseband section, at least one radio frequency (RF) section, and an interface module. The interface module is configured to couple the at least one baseband section to the at least one RF section, wherein the interface module includes an analog interface module and a digital interface module. | 2013-01-03 |
20130003797 | UNIVERSAL MODEM SYSTEM AND THE MANUFACTURING METHOD THEREOF - According to one exemplary embodiment of a universal modem system, multiple digital signal processors (DSPs) are configured to perform at least one streaming-based task, or at least one block-based task, or both of the tasks. At least one concatenate memory is configured to store data for the at least one streaming-based task At least one concatenate bus connects at least one concatenate memory and the plurality of DSPs serially for performing the at least one streaming-based task. At least one concatenate memory is configured to store the data for the at least one streaming-based task. At least one public bus connects the plurality of DSPs and the at least one shared memory for performing the at least one block-based tasks. | 2013-01-03 |
20130003798 | DEVICE ABSTRACTION PROXY - Described are systems and methods for implementing and operating a Device Abstraction Proxy (DAP). In one embodiment, the DAP includes a communications interface to connect the DAP to one or more access aggregation devices, each having a plurality of physical ports to provide Digital Subscriber Line (DSL) communication services to a plurality of remote DSL terminals via the plurality of physical ports. The DAP may further include a memory and processor to execute a virtual access aggregation device, in which a subset of the plurality of physical ports are allocated and linked to corresponding logical ports. The DAP may further include a global rule-set module to define operational constraints for the DSL communication services, and a management interface to allow at least one broadband access management system to manage the subset of physical ports allocated to the virtual access aggregation device subject to the operational constraints. | 2013-01-03 |
20130003799 | IMPAIRMENT COMPENSATION - A method is provided for compensating for impairment of an electrical signal output from a device under test (DUT), the impairment resulting from an impairment network. The method includes measuring an impaired electrical signal received at an electronic analyzer via the impairment network; applying a coded pulse sequence to the impairment network; estimating an impairment transfer function corresponding to the impairment based on the applied pulse sequence; and correcting the measured electrical signal using the impairment transfer function to determine the electrical signal output from the DUT. | 2013-01-03 |
20130003800 | SYSTEMS AND METHODS FOR COMBINING VARIABLE BIT RATE DATA STREAMS - Systems and methods for combining variable bit rate data streams are provided. A plurality of data streams may be identified by a service provider system that includes one or more computers. Each data stream may be a variable bit rate data stream. Based upon an analysis of the respective variable bit rates, the service provider system may determine a subset of the plurality of data streams to be combined. The subset of data streams may then be combined and output by the service provider system for transmission to one or more consumer devices. | 2013-01-03 |
20130003801 | DELAYING ANALOG SOURCED AUDIO IN A RADIO SIMULCAST - A method and apparatus is disclosed in which delay is applied to analog-sourced audio in a radio simulcast when the analog signal initially leads the digital signal. A radio receiver is configured to receive a simulcast radio program broadcast with an analog signal and a digital signal. The program content can be extracted from either the analog or digital signals, with the audio source eventually being blended to the digital signal. Audio is initially provided based on the analog signal. If the analog signal is initially leading the digital signal, delay is applied a data stream corresponding to the analog signal relative to a data stream corresponding to the digital signal. Delay applied to the data stream corresponding to the analog signal is increased at a rate that avoids audio artifacts of the output audio. The blend is performed when the data streams are aligned in time. | 2013-01-03 |
20130003802 | NOISE ESTIMATION FILTER - A noise estimation filter for an orthogonal frequency-division multiplexed (OFDM) system can include a filter bank module, a coefficient squaring module, and a summing module. The filter bank module can multiply a unitary vector by an OFDM signal vector to generate scalar products of the OFDM signal vector. The coefficient squaring module can square the scalar products and weight the scalar products to generate a plurality of weighted single estimates. The coefficient squaring module can include a squaring module for squaring the scalar product to generate a plurality of single estimates and a coefficient multiplication module for weighting each of the single estimates with a noise coefficient forming a plurality of weighted single estimates. The summing module can sum the weighted single estimates to generate a noise and interference power estimate. | 2013-01-03 |
20130003803 | LISTEN BEFORE TALK FREQUENCY AGILE RADIO SYNCHRONIZATION - A radio frequency communication system includes a transmitter that selects a frequency channel from among multiple frequency channels available to the transmitter and to a receiver, listens to ensure that a selected channel is unused before transmitting, and sends a preamble longer in time than a receiver scan time during which the receiver is operable to scan all frequency channels available to transmitter and receiver for the preamble. The receiver scans through the available frequency channels for a preamble, finds the preamble on a channel, and locks on to the channel on which the preamble was found. | 2013-01-03 |
20130003804 | IMPAIRMENT COMPENSATION - A method is provided for compensating for impairment of an electrical signal output from a device under test (DUT), the impairment resulting from an impairment network. The method includes measuring an impaired electrical signal received at an electronic analyzer via the impairment network; applying a stimulus signal to the impairment network; estimating an impairment transfer function corresponding to the impairment based on the applied stimulus signal; and correcting the measured electrical signal using the impairment transfer function to determine the electrical signal output from the DUT. | 2013-01-03 |
20130003805 | LIN RECEIVER PROVIDING IMMUNITY AGAINST ISO PULSES - A LIN receiver circuit includes filtering circuitry receiving an input signal and producing a filtered signal, a first comparator comparing the filtered signal to a threshold voltage, and a driver block producing the receiver output signal. The receiver circuit further includes an input comparator, signal-adjusting circuitry, and deglitching circuitry. The input comparator detects a low voltage on the input signal, and the signal-adjusting circuitry drives the filtered signal to a particular value to shorten the length of a glitch at the output of the first comparator. Meanwhile, the deglitching circuitry detects and removes the glitch to produce a deglitcher output signal. The deglitcher output signal is received by the driver block, which outputs the receiver output signal, wherein the receiver output signal contains no glitches, and is delayed by no more than 7.5 μs, thus providing immunity to ISO pulses. | 2013-01-03 |