47th week of 2008 patent applcation highlights part 32 |
Patent application number | Title | Published |
20080285544 | METHOD AND APPARATUS FOR PROVIDING MOBILITY FOR A VOICE OVER INTERNET PROTOCOL SERVICE - A method and an apparatus for providing mobility for a Voice over Internet Protocol Service (VoIP) provided on packet networks are disclosed. For example, the method receives a register request from a user endpoint device and retrieves an Access Point-address parameter from a contact header in the register request. The method then determines a physical location of an access point device in accordance with the Access Point-address parameter and updates location information for the user endpoint device in accordance with the physical location of the access point device. | 2008-11-20 |
20080285545 | VOICE OVER IP CUSTOMER PREMISES EQUIPMENT - A system and method for increasing the cost effectiveness of a service provider in meeting the needs of the multiple dwelling unit (MDU) market. To reduce the cost of connectivity between a network unit and a customer premises in the MDU, customer premises equipment functionality is embedded in a voice over Internet protocol (VOIP) phone. | 2008-11-20 |
20080285546 | SYSTEM AND METHOD FOR ENABLING OPERATION OF AN ETHERNET DEVICE OVER AN EXTENDED DISTANCE - A system and method for enabling operation of an Ethernet device over an extended distance. In a multiple dwelling unit (MDU) a customer premises equipment (CPE) can be coupled to a network unit via a broad reach Ethernet link that is greater than 100 meters (e.g., 500 meters). In this example, a CPE having a conventional Ethernet port can be operated over the broad reach Ethernet link using a converter device. | 2008-11-20 |
20080285547 | Voice over internet protocol gateway and a method for controlling the same - A voice over Internet protocol (VoIP) gateway includes a foreign exchange office (FXO), a foreign exchange station (FXS), and a VoIP processor. A controller of the VoIP gateway sets the VoIP gateway to either a TANDEM (trunk and ENM (ear and mouth)) mode or a standalone mode. In the TANDEM mode, the VoIP gateway transmits an incoming call from the VoIP processor to the FXO and an outgoing call from the FXS to the VoIP processor. In the standalone mode, the VoIP gateway transmits the incoming call from the VoIP processor to the FXS and the outgoing call from the FXS to the VoIP. | 2008-11-20 |
20080285548 | SYSTEM AND METHOD FOR PROCESSING A PLURALITY OF REQUESTS FOR A PLURALITY OF MULTI-MEDIA SERVICES - A system and method for processing a plurality of requests for a plurality of multi-media services received at a Private Service Exchange (PSX) from a plurality of IP-communication devices. The system includes an IP Segmentation Directory (IP-SD) coupled to the PSX and to a plurality of IP Service Control Points (IP-SCPs), which are operative to process the plurality of requests for the plurality of multi-media services. The PSX is adapted to receive, process and redirect the plurality of requests for the plurality of multi-media services to the IP-SD. The IP-SD further receives, processes and selectively redirects the plurality of requests for the plurality of multi-media services to a predetermined IP-SCP of the plurality of IP-SCPs based on attributes of each of the plurality of requests for the plurality of multi-media services. | 2008-11-20 |
20080285549 | SYNCHRONOUS READ CHANNEL - A synchronous read channel having a single chip integrated circuit digital portion which provides digital gain control, timing recovery, equalization, digital peak detection, sequence detection, RLL( | 2008-11-20 |
20080285550 | DUAL OSS MANAGEMENT OF AN ETHERNET ACCESS NETWORK - Management of Ethernet access networks that provide both TDM services and packet services is disclosed. An Ethernet access network as described herein includes a head end having TDM network interface ports and packet network interface ports, customer location equipment (CLE) having TDM service interface ports and packet service interface ports, and a connection medium connecting the head end and the customer location equipment. To provide management of the network, a relationship is defined between TDM network interface ports of the head end and TDM service interface ports of the CLE. The defined relationship between the TDM network interface ports and the TDM service interface ports is modeled as a cross connect system. A TDM OSS may then manage the TDM services of the Ethernet access network by managing the cross connect system, and a packet OSS may manage the packet services of the Ethernet access network. | 2008-11-20 |
20080285551 | Method, Apparatus, and Computer Program Product for Implementing Bandwidth Capping at Logical Port Level for Shared Ethernet Port - Bandwidth capping is implemented at a logical port level for a shared Ethernet port. When a physical port of a Host Ethernet Adapter (HEA) is partitioned, a Logical HEA is created for the partition. One or a plurality of Logical Ports (LPorts) is created in the Logical HEA. Each LPort is mapped to a corresponding physical port. During LPAR configuration, a minimum guaranteed speed is specified for the LPort together with the corresponding physical port for the LPort and an optional maximum speed. The specified configuration for the LPort is verified, and the configuration values are stored in the HEA and the HEA dispatches data packets based upon the stored configuration values for the LPort. | 2008-11-20 |
20080285552 | INTELLIGENT FAILOVER IN A LOAD-BALANCED NETWORKING ENVIRONMENT - A hash table in the network device driver maintains data on the traffic characteristics for each network interface (“NIC”) within a computing device. If one of the NICs in the computing device becomes unreliable, the cost function in the hash engine allows the software driver to initiate network traffic redistribution among the remaining reliable NICs in the computing device. Using this hash engine, the software driver is able to intelligently redirect each of the network connections on an unreliable NIC to a reliable NIC within the computing device, in a way that optimizes the distribution of network traffic across the remaining reliable NICs. Alternatively, if a connection is moved from an old NIC to a new NIC, the software driver can detect the moved connection and offload the moved connection to a hardware offload engine on the new NIC. With this approach, issues such as network interface overloading and computing device performance degradation may be more easily avoided when failing over network connections, thereby improving overall system performance relative to prior art techniques. | 2008-11-20 |
20080285553 | INTELLIGENT LOAD BALANCING AND FAILOVER OF NETWORK TRAFFIC - A hash engine in a network device driver maintains data on the utilization and error rate for each network interface card (“NIC”) within a local computing device. From this data, the hash engine intelligently selects transmit NICs and receive NICs based on various networking parameters provided from a software driver program. Transmit packets sent from the operating system in a local computing device to a remote computing device are intercepted, modified and redirected to transmit NICs selected by the hash engine for transmission to remote computing devices. Similarly, address resolution protocol (“ARP”) response packets sent by the operating system in response to ARP request packets are intercepted, modified and redirected to receive NICs selected by the hash engine for transmission. By selecting receive NICs and transmit NICs in this fashion, the hash engine is able to intelligently load balance transmit and receive traffic in the local computing device, thereby improving overall network performance relative to prior art techniques. | 2008-11-20 |
20080285554 | COMMUNICATION APPARATUS AND DATA TRANSMISSION METHOD THEREOF - An IP communication apparatus has a file transferer that transfers a media data file to a destination apparatus, when determining that the destination apparatus has the file transfer function, based on transmission and reception of SIP messages to and from a call controller, which transmits and receives SIP messages to and from the destination apparatus via a call connection server. Thereby, the IP communication apparatus allows an easy transfer of the media data file. | 2008-11-20 |
20080285555 | NODE, COMMUNICATION METHOD, AND PROGRAM FOR NODE - The present invention provides a node capable of preventing the problems caused by switching between traffic communication paths when a link failure occurs. According to an embodiment of the invention, among ports of a node | 2008-11-20 |
20080285556 | BROADCASTING SERVICE TRANSMITTING APPARATUS AND METHOD AND BROADCASTING SERVICE RECEIVING APPARATUS AND METHOD FOR EFFECTIVELY ACCESSING BROADCASTING SERVICE - A broadcasting service transmitting apparatus and method and a broadcasting service receiving apparatus and method for providing a broadcasting service formed of various types of data are provided. The broadcasting service receiving apparatus includes a receiving unit, a transport frame processing unit, a transport packet processing unit, and a broadcasting data processing unit. The receiving unit receives a transport frame having a predetermined size. The transport frame processing unit acquires from the transport frame service access information for accessing at least one broadcasting service and also acquires from the transport frame at least one transport packet for transporting at least one broadcasting data packet, by using the service access information. The transport packet processing unit processes the at least one transport packet so as to acquire at least one broadcasting data packet from the at least one transport packet. The broadcasting data processing unit processes the at least one broadcasting data packet. | 2008-11-20 |
20080285557 | Method, System and Relay Device for Transmitting Packet - A method for transmitting a packet. The method includes: receiving an upstream packet carrying an original user identifier of a user; establishing a corresponding relationship between user related information on the user and a replacement user identifier in accordance with the upstream packet carrying the original user identifier of the user, and sending an upstream packet carrying the replacement user identifier of the user to a server, the replacement user identifier being capable of distinguishing the user from others; determining the user related information corresponding to the replacement user identifier in the downstream packet in accordance with the corresponding relationship, and transmitting the downstream packet in accordance with the user related information. | 2008-11-20 |
20080285558 | REPORTING EVENTS FROM MULTIPLE WS-ENABLED DEVICES - Techniques for reporting events that occur on a plurality of Web Services (WS)-enabled devices are provided. A service agent executes on a node that is separate from the plurality of WS-enabled devices. The service agent receives an event notification message from a particular device of the plurality of WS-enabled devices. The event notification message indicates an event that occurred on the particular device. In response to receiving the event notification message, the service agent examines a mapping table that maps event types to one or more devices that are to be notified when the corresponding event occurs. The service agent then sends a message about the event to each of the one or more devices. | 2008-11-20 |
20080285559 | Method, Device And System For Implementing Multicast Connection Admission Control - Implementing multicast connection admission control is provided, and includes: calculating a currently remaining multicast support capability of a network-side functional unit upon receiving a program request initiated from a user; and admitting an access of the user when a support capability required for a program as requested by the user is below or equal to the currently remaining multicast support capability of the network-side functional unit. | 2008-11-20 |
20080285560 | SYSTEM, METHOD AND PROGRAM FOR MAKING ROUTING DECISIONS - A computer system, method and program for routing. A router receives a message packet, and in response, the router reads a payload in the message packet to identify an application that sent the message packet or a user of the application that sent the message packet, as identified from the reading of the payload. The router determines a routing path for the message packet based at least in part on the identity of the application that sent the message packet or the user of the application that sent the message packet. The router forwards the message packet to a next hop in the routing path which was determined. | 2008-11-20 |
20080285561 | Systems and methods for Internet Protocol transparency - A method for implementing IP transparency includes requesting an IP address from an Internet service provider (ISP), receiving a first IP address from the ISP responsive to requesting an IP address from the ISP, receiving a request for an IP address from a communication device, sending the first IP address to the communication device responsive to receiving the request for an IP address from the communication device, receiving a first IP packet from the communication device, and sending the first IP packet to the ISP. The first IP packet has the first IP address as a source address in a header of the first IP packet. | 2008-11-20 |
20080285562 | FLEXIBLE ROUTING TABLES FOR A HIGH-RADIX ROUTER - A system and method for routing in a high-radix network. A packet is received and examined to determine if the packet can be routed adaptively. If the packet can be routed adaptively, the packet is routed adaptively, wherein routing adaptively includes selecting a column, computing a column mask, routing the packet to the column; and selecting an output port as a function of the column mask. If the packet can be routed deterministically, routing deterministically, wherein routing deterministically includes accessing a routing table to obtain an output port and routing the packet to the output port from the routing table. | 2008-11-20 |
20080285563 | Routing Information Management Apparatus and Computer Program of the Same - In order to provide the routing information of both the present time and the past, provide the latest routing information very quickly and improve searching speed of the routing information, a routing information management apparatus includes: a routing information receiving portion receiving routing information which broadly notifies a change/withdrawal of a communication route and which is received from an observation apparatus of communication routes; and a routing state table generation portion which generates a routing state table of each of the communication routes including both a route existing time based on a received time of the routing information and a range of an address space obtained by digitizing a prefix involved in the routing information, and which stores the routing state table in a routing information database. | 2008-11-20 |
20080285564 | METHOD AND APPARATUS FOR MAKING TRANSPORT FRAME AND METHOD AND APPARATUS FOR PROCESSING TRANSPORT FRAME - Provided are a method and apparatus for creating a transport frame in order to identify the starts of packets, and a method and apparatus for processing the transport frame. In the method of creating the transport frame, at least one packet to be transported by being loaded in the transport frame is received. Then, information about the start location of a first packet, that is, a packet whose head and tail are both in the transport frame and which comes first within the transport frame, among the received at least one packet is created. Next, the transport frame, including the at least one packet and the start location information about the first packet, is created. | 2008-11-20 |
20080285565 | SYSTEMS AND METHODS FOR CONTENT INSERTION WITHIN A ROUTER - Systems and methods are provided for inserting content into messages being sent between systems or networks. A router according to one embodiment automatically inserts new content within a received data packet. Before insertion, the router may determine that the received data packet corresponds to a certain type of message such as a web page, an e-mail, or a text message. The router may also determine whether the packet includes a predetermined insertion point in the corresponding message. The predetermined insertion point may be, for example, an end of the web page, e-mail, or text message. The type of message and/or the subject matter of the inserted content may be based on user selectable preferences. In one embodiment, a plurality of packets are received before the new content is inserted into the message to improve reliability and/or allow message decoding. | 2008-11-20 |
20080285566 | METHOD AND APPARATUS FOR PROVIDING AND UTILIZING RADIO LINK CONTROL AND MEDIUM ACCESS CONTROL PACKET DELIVERY NOTIFICATION - A method and apparatus for providing and utilizing radio link control (RLC) and medium access control (MAC) packet delivery notification are disclosed. A MAC entity tracks a delivery status of a MAC protocol data unit (PDU) and sends MAC service data unit (SDU) delivery notification to an RLC entity and/or an upper layer upon occurrence of a triggering event. The triggering event may be expiration of a timer, a packet discard decision, MAC reset, MAC re-establishment, or a request from the upper layer. The RLC entity may also track a delivery status of an RLC service data unit (SDU) and send RLC delivery notification to the upper layer. An upper layer including a header compression entity may adjust a header compression parameter based on the RLC delivery notification or the MAC delivery notification. The RLC delivery notification may be used for lossless handover. Retransmission may be performed at the upper layer based on the RLC delivery notification or the MAC delivery notification. | 2008-11-20 |
20080285567 | Method and Related Apparatus for Setting Packet Headers in a Wireless Communications System - A method for setting a header, having a header extension type field, of a protocol data unit in a radio link control layer of a wireless communications system includes configuring a “use of the special value of the header extension type field” mode, and setting the header extension type field to indicate that a last octet of the protocol data unit is a last octet of a service data unit when the last octet of the protocol data unit is the last octet of the service data unit and there is no concatenation of service data units inside the protocol data unit. | 2008-11-20 |
20080285568 | Method and System for Transforming Compressed Video Traffic to Network-Aware Ethernet Traffic with A/V Bridging Capabilities and A/V Bridging Extensions - Aspects of a system for transforming compressed video traffic to network-aware Ethernet traffic with A/V bridging capabilities and A/V bridging extensions may include a graphics processing unit (GPU) that may enable encapsulation of compressed video data within a Display Port protocol data unit (PDU). A LAN subsystem may enable encapsulation of the Display Port PDU within an encapsulating PDU. The LAN subsystem may enable determination of a traffic class designation associated with the encapsulating PDU. The LAN subsystem may enable transmission of the encapsulating PDU via a network based on the traffic class designation. The LAN subsystem may also enable the encapsulation of compressed video data within Ethernet frames. A computing device, which receives the Ethernet frames may de-compress the compressed video data and send the uncompressed video data, which may be encapsulated within one or more Display Port mini-packets, to a multimedia monitor. | 2008-11-20 |
20080285569 | Device for Session-Based Packet Switching - Whereas the network architecture for ATM-based access networks on the DSL forum has already been defined, work on Ethernet-based access networks is still in its infancy. The invention relates to a novel aggregation solution for use in Ethernet-based broadband access networks. | 2008-11-20 |
20080285570 | Method for Managing an Interconnection Between Telecommunication Networks and Device Implementing this Method - This invention concerns a method of managing a telecommunication network ( | 2008-11-20 |
20080285571 | Media Data Processing Using Distinct Elements for Streaming and Control Processes - A hardware accelerated streaming arrangement, especially for RTP real time protocol streaming, directs data packets for one or more streams between sources and destinations, using addressing and handling criteria that are determined in part from control packets and are used to alter or supplement headers associated with the stream content packets. A programmed control processor responds to control packets in RTCP or RTSP format, whereby the handling or direction of RTP packets can be changed. The control processor stores data for the new addressing and handling criteria in a memory accessible to a hardware accelerator, arranged to store the criteria for multiple ongoing streams at the same time. When a content packet is received, its addressing and handling criteria are found in the memory and applied, by action of the network accelerator, without the need for computation by the control processor. The network accelerator operates repetitively to continue to apply the criteria to the packets for a given stream as the stream continues, and can operate as a high date rate pipeline. The processor can be programmed to revise the criteria in a versatile manner, including using extensive computation if necessary, because the processor is relieved of repetitive processing duties accomplished by the network accelerator. | 2008-11-20 |
20080285572 | SINGLE DEVICE FOR HANDLING CLIENT SIDE AND SERVER SIDE OPERATIONS FOR A/V BRIDGING AND A/V BRIDGING EXTENSIONS - Aspects of a single device for handling server side operations for A/V bridging and A/V bridging extensions may include a single IC device that is configured to enable encapsulation of generated digital video data within an encapsulating PDU. The single IC device may enable determination of a traffic class designation associated with the encapsulating PDU. The single IC device may enable transmission of the encapsulating PDU via a network based on the traffic class designation. Aspects of a single device for handling client side operations may include a single IC device that is configured to enable extraction of received digital video that is encapsulated within an encapsulating PDU. The encapsulating PDU may be received via a network at a destination device. The single IC device may enable transmission of the received digital video data to a multimedia monitor coupled to the destination device via an interface connector. | 2008-11-20 |
20080285573 | METHOD AND SYSTEM FOR AN ASYMMETRIC PHY OPERATION FOR ETHERNET A/V BRIDGING AND ETHERNET A/V BRIDGING EXTENSIONS - Signals may be communicated with A/V Bridging services between an upstream link partner and a down stream link partner, each comprising an asymmetric multi-rate Ethernet physical layer (PHY). High bandwidth AN signals may be transmitted from the upstream link partner and low bandwidth signals may be transmitted from the downstream link partner. One or more of a time stamp, a traffic class and/or a destination address may be utilized in generating PDUs as well as data rate request and a resource reservation messages via the asymmetric Ethernet PHY. The receiving link partner may register for deliver of the PDUs. An aggregate communication rate may be distributed evenly or unevenly among one or more links for transmission and aggregated upon reception via asymmetric multi-rate Ethernet PHY operations. Compressed, uncompressed, encrypted and/or unencrypted signals may be handled. Signal processing may comprise echo cancellation, cross talk cancellation, forward error checking and equalization. | 2008-11-20 |
20080285574 | METHOD AND SYSTEM FOR PROXY A/V BRIDGING ON AN ETHERNET SWITCH - Aspects of a system for proxy AN bridging on an Ethernet switch may include an AV switch enables reception of incoming PDUs from a legacy device via an AV block network, wherein each incoming PDU contains an AV stream identifier (which consists of a destination address and may also consist of a traffic class designation and/or higher level protocol identifiers). The destination address may identify a destination AV device within the AV block network. The AV switch may enable generation of outgoing PDUs by inserting or modifying a corresponding traffic class designation within each of the incoming PDUs. The AV switch may enable transmission using a specific traffic shaping process of each of the outgoing PDUs to a destination AV device within the AV block network based on the AV stream identifier and corresponding QoS parameters. | 2008-11-20 |
20080285575 | System and Method For Remote Monitoring And Control Of Network Devices - A managed network provides unique network addresses that are assigned to nodes such that no two nodes will have the same address in the managed network and such that each node will always have the same network address regardless of changing its location or changing the network to which it is joined. The nodes, communicating together, comprise a mesh network. Remote management and control of the nodes is possible from the host server, which is located outside of the mesh network, even if a node is located behind a firewall or network address translator (NAT), because server management messages are encapsulated within headers so that a persistent connection between the node and the external host server is maintained once the node sends a message to the host. | 2008-11-20 |
20080285576 | METHOD AND SYSTEM FOR INTEGRATING ETHERNET AND MULTIMEDIA FUNCTIONS INTO A LAN SYSTEM - Aspects of a method and system for Ethernet and multimedia functions into a LAN subsystem are provided. In this regard, an integrated network interface which may comprise one or more Ethernet interfaces, and one or more high definition (HD) multimedia interfaces may be enabled to transmit and/or receive HD multimedia content over a network. Audio/Video Bridging and/or Audio/Video Bridging extensions may be utilized for the transmission and/or reception of HD multimedia content over a network. The integrated network interface may be enabled to transmit and/or receive physical layer signals adhering to protocols such as Ethernet and DisplayPort and may be configurable to select the type of signals to be transmitted or received. In this regard, aspects of the invention may enable converting Ethernet frames to DisplayPort micro-packets and visa-versa. | 2008-11-20 |
20080285577 | Systems and Methods for Providing Network-Wide, Traffic-Aware Dynamic Acceleration and Admission Control for Peer-to-Peer Based Services - In one aspect, the invention provides systems and methods for providing users with a peer-to-peer (P2P) acceleration service over any form of broadband access. | 2008-11-20 |
20080285578 | CONTENT-BASED ROUTING OF INFORMATION CONTENT - A system to route media information content may include a router that analyzes predetermined content of a plurality of data packets of the media information content and prioritizes forwarding the plurality of data packets from the router based on applying at least one rule to the predetermined content. | 2008-11-20 |
20080285579 | Digital Broadcast Network Best Effort Services - In accordance with an embodiment, a best-effort service is divided into packets for best-effort digital broadcast transmission. The packets are encapsulated with an encapsulation protocol that uses a packet order defining field. The encapsulated packets are inserted into an unused portion of a slot of a digital broadcast transmission frame. Then, the encapsulated packets are repeatedly inserted into the unused portion of the slot of the digital broadcast transmission frame in a packet-carousel fashion. And the transmission frame is digitally broadcast. In accordance with an embodiment, a digital broadcast transmission is received. Encapsulated packets that have been repeatedly broadcast in a packet-carousel fashion are accessed from a best-effort portion of a digital broadcast transmission frame slot. And a best-effort service is composed from the encapsulated packets by combining the encapsulated packets in an order based on a packet order defining field of the encapsulated packets. | 2008-11-20 |
20080285580 | ROUTER APPARATUS - A router apparatus allocates a queue in a storage device and transmits transmission-target data after temporarily storing the transmission-target data in the queue. The router apparatus determines whether the size of a usable data area assigned to the queue is equal to or greater than a threshold, and supplements, on the basis of the determination, the data area of the supplementation-target queue having the usable data area whose size is smaller than the threshold with a data area of a queue other than the supplementation-target queue. | 2008-11-20 |
20080285581 | Method Apparatus and System for Accelerated Communication - A TCP acceleration apparatus includes input queues each having a service level and storing at least one session packet list having packets from a same TCP session. The apparatus also includes a distributor connected to the input queues and to the client and configured to retrieve a session packet from a session packet list at a top of an input queue for transmission to the client. The input queue at the service level selected by the distributor moves the session packet list at a top of the input queue to a bottom of the input queue after the session packet is retrieved by the distributor. Acceleration apparatuses including other features, as well as a method, computer program product and system for TCP acceleration are also discussed. | 2008-11-20 |
20080285582 | Digraph network superframes - A method of assigning cells in a superframe using digraph link information in a network of nodes is disclosed. The method comprises determining a total number of desired digraph links in the network of nodes wherein a digraph link is a directional link specifying routing information at each node in the network between said node and a second node, and wherein the network of nodes includes a plurality of nodes each with a plurality of digraph links. The method further comprises selecting a superframe size at least large enough to accommodate the total number of desired digraph links and assigning each desired digraph link to a cell in the superframe wherein each cell in the superframe specifies a synchronized time and frequency communication plan. | 2008-11-20 |
20080285583 | Method and Apparatus for Polling Transmission Status in a Wireless Communications System - A method for polling transmission status in a transmitter of a wireless communications system includes forming a status protocol data unit including a poll sequence number field indicating a sequence number of a protocol data unit to be polled when a polling procedure is triggered to poll a receiver, setting a value of the poll sequence number field to be a sequence number of a next protocol data unit to be transmitted for the first time minus 1, and transmitting the status protocol data unit to the receiver. | 2008-11-20 |
20080285584 | Method and Related Apparatus for Handling Re-establishment of Radio Link Control Entity in a Wireless Communications System - A method for handling re-establishment of a radio link control entity having a transmitting side and a receiving side in a wireless communications system includes storing a plurality of control protocol data units, and reserving a poll super field in the plurality of control protocol data units when only the receiving side is re-established. | 2008-11-20 |
20080285585 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A communication apparatus is provided. The communication apparatus includes a first unit for performing data communication using a bandwidth reservation type transmission area constituted by a plurality of time-divided time slots via a power line to which an alternating-current voltage is supplied. A second unit is connected to the first unit, for securing a vacant time slot out of the plurality of time-divided time slots. A third unit is connected to the first unit, for securing a time slot out of the plurality of time-divided time slots when incapable of securing the vacant time slot, the secured time slot being used in common by a first communication system used by the communication apparatus and a second communication system different from the first communication system, the second communication system using the same communication procedure as the first communication system. | 2008-11-20 |
20080285586 | Multiplexer - A multiplexer ( | 2008-11-20 |
20080285587 | SYSTEMS AND METHODS FOR PROVIDING UNIFIED COLLABORATION SYSTEMS WITH USER SELECTABLE REPLY FORMAT - A communication system provides integrated email, telephone and instant messenger communication including a common address book, a common log of communication history and shared presence information. A user can respond to a communication according to any format, email, telephone or instant messenger, with a response using the same format or any other format. The response may be initiated by a single command. | 2008-11-20 |
20080285588 | SYSTEMS AND METHODS FOR PROVIDING UNIFIED COLLABORATION SYSTEMS WITH COMBINED COMMUNICATION LOG - A communication system provides integrated email, telephone and instant messenger communication including a common address book, a common log of communication history and shared presence information. A user can respond to a communication according to any format, email, telephone or instant messenger, with a response using the same format or any other format. The response may be initiated by a single command. | 2008-11-20 |
20080285589 | METHOD AND SYSTEM FOR DATA EXCHANGE WITH A MULTIMEDIA AND ETHERNET ENABLED LAN SUBSYSTEM - Aspects of a method and system for data exchange with a multimedia and Ethernet enabled LAN subsystem are provided. A multimedia networking interface may be enabled to process multimedia data and communicate the data between a networking interface and one or both of a graphics processor and an audio processor. In some instances, the networking interface may comprise a LAN interface and may enable communicating multimedia data over a network. The multimedia networking interface may be enabled to communicate auxiliary and/or control data associated with communicated multimedia content. The multimedia networking interface may process multimedia content prior to or subsequent to transmission of said content. In this regard, the multimedia networking interface may be enabled to parse, format, encapsulate, decapsulate, packetize, depacketize, and/or otherwise format the multimedia content. | 2008-11-20 |
20080285590 | STORAGE SYSTEM, COMPUTER SYSTEM AND INTERFACE MODULE - An interface module comprises a serial signal transceiver to be connected to an external transmission path and an interface processing unit connected to the transceiver. The interface processing unit comprises a serializer/deserializer circuit, an encoder/decoder, a protocol processing unit having at least two kinds of selectable protocol processing functions, and a communicate mode switch circuit for changing reference clock to be supplied to the serializer/deserializer circuit in conjunction with switching of the protocol processing function from one to another. | 2008-11-20 |
20080285591 | Apparatus and Method for Deciding Transmission Format Using Variable Frame Length and Decoding Method Using the Same - Provided are an apparatus and method for deciding a transmission format using a variable frame length and a decoding method using the same. The apparatus for deciding the transmission format using the variable frame length includes: a frame synchronization acquiring unit for acquiring a frame synchronization of a received transmission frame; a correlation analyzing unit for performing a correlation analysis with respect to the transmission frame whose synchronization is acquired, considering frame lengths of respective frame structures; and a transmission frame structure deciding unit for deciding the structure of the received transmission frame using the analyzed correlation. Accordingly, a physical layer signaling code (PLSC) demodulation and decoding performance can be enhanced by determining the structure of the transmitted frame without carrying out a PLSC decoding in such a state that a frequency synchronization is not acquired. | 2008-11-20 |
20080285592 | Extended layer two tunneling protocol applications and architectures - A device, deployed at the edge of a provider network, includes logic to receive traffic from one or more customer edge devices, and to encapsulate the customer traffic into a Layer 2 tunnel of an IP frame. The IP frame in further included within an Ethernet frame, and quality of service priority bits are promoted from the customer traffic into both the IP frame and the Ethernet frame. | 2008-11-20 |
20080285593 | Location system and communication system - A location system comprises a plurality of transponders whose locations are detectable by a base system. The base system interrogates ( | 2008-11-20 |
20080285594 | System and method for adapting analog systems to communicate with packet networks - A system for adapting an analog system to a packet network may include an electronic signal adapter in communication with the analog system and packet network. The electronic signal adapter may be configured to convert information received in data packets from the packet network into dual-tone multiple frequency (DTMF) signals and single tone analog signals and to communicate the DTMF and single tone analog signals to the analog system. The single tones may have a signal strength below approximately −25 dBm. The electronic signal adapter may further be configured to receive and convert analog signals into digital data for communication in data packets over a packet network. | 2008-11-20 |
20080285595 | SPREAD BASEBAND INJECTED PILOT CARRIER - A system for communicating includes a transmitter that has an encoder and baseband modulator that encodes and modulates a sequence of data symbols as a payload data constellation to be communicated. A PN sequence generator and baseband modulator form a pilot signal as a training sequence with a periodically repeating spread spectrum sequence. A circuit superimposes the pilot signal over the sequence of data symbols to form a composite communication signal that is transmitted. A receiver receives the composite communication signal and extracts the pilot signal from the composite communication signal. | 2008-11-20 |
20080285596 | SYSTEM AND METHOD FOR FINE-GRAINED, END-TO-END TRAFFIC SCHEDULING ACROSS HETEROGENEOUS LOCAL AREA NETWORKS - A system and method for fine-grained, end-to-end traffic scheduling across heterogeneous local area networks (LANs). A system may include a network, where the network comprises multiple heterogeneous network, technologies. The system also may include at least two devices coupled to the network, where clocks of the at least two devices are synchronized. The system also may include a scheduler coupled to the network, where the scheduler creates a network wide data traffic schedule and where the data traffic schedule determines when each of the at least two devices can send data into the network. Other embodiments are described and claimed. | 2008-11-20 |
20080285597 | SYNCHRONIZING SEPARATED EDGE QAM DEVICES LOCATED REMOTELY FROM A CMTS - The clocks of one or more edgeQAM devices are synchronized with a master clock at the remotely located CMTS. A master clock signal may be transmitted via a dedicated gigabit Ethernet link. Alternatively, master clock information contained in a time synchronization message may be transmitted for use in adjusting local oscillators that drive local clocks at respective edgeQAM devices. | 2008-11-20 |
20080285598 | PHASE ROTATOR FOR DELAY LOCKED LOOP BASED SERDES - An apparatus comprising a first multiplexer circuit (MUX) to receive a plurality of clock phase signals at a corresponding plurality of MUX inputs and to output a first clock signal and a second clock signal that are out of phase with each other, a phase delay circuit to receive the output of the first MUX and to generate adjusted first and second clock signals that have reduced phase error with respect to detected edges of incoming data, an output MUX to receive the adjusted first and second clock signals and to output a recovered clock signal, and a control circuit coupled to output MUX select inputs. The control circuit includes logic circuitry to select the first adjusted clock signal as the recovered clock signal and to select the second adjusted clock signal as the recovered clock signal when the first adjusted clock signal nears a phase limit due to drift of the detected data edges. Other devices and methods are disclosed. | 2008-11-20 |
20080285599 | Control Mechanism for Adaptive Play-Out with State Recovery - A control logic means preferably for a receiver comprising a jitter buffer means adapted to receive and buffer incoming frames or packets and to extract data frames from the received packets, a decoder connected to the jitter buffer means adapted to decode the extracted data frames, and a time scaling means connected to the decoder adapted to play out decoded speech frames adaptively. The control logic means comprises knowledge of whether a state recovery function is available and is adapted to retrieve at least one parameter from at least one of the jitter buffer means, the time scaling means, and the decoder, to adaptively control at least one of an initial buffering time of said jitter buffer means, the knowledge of the availability of the state recovery function, and a time scaling amount of said time scaling means from the time scaling means or the decoder. | 2008-11-20 |
20080285600 | Laser System for Hard Body Tissue Ablation - A laser system for hard body tissue ablation has a pumped laser, wherein the laser system is operated in pulsed operation with several individual pulses of a temporally limited pulse length and wherein the individual pulses follow one another with temporal pulse spacing. The pumped laser has an inversion population remaining time, the inversion population remaining time being the time within which, in the absence of pumping, the remaining inversion population of the laser energy status is reduced by 90%. The pulse spacing is in the range of ≧50 μs and ≦ to the inversion population remaining time. | 2008-11-20 |
20080285601 | External cavity semiconductor laser and method for fabrication thereof - The present invention concerns a design for an external cavity single mode laser wherein a short optical path length for the optical cavity (e.g., ˜3 to 25 mm) provides sufficient spacing of the longitudinal modes allowing a single wavelength selective element, such as a microfabricated etalon, to provide a single mode of operation, and optionally a selectable mode of operation. | 2008-11-20 |
20080285602 | Narrow-Spectrum Laser Device - A spectral purity range (E | 2008-11-20 |
20080285603 | TUNABLE LASER SOURCE WITH INTEGRATED OPTICAL MODULATOR - A tunable laser source with integrated optical modulator. The tunable laser source is a widely tunable semiconductor laser that is comprised of an active region on top of a thick, low bandgap, waveguide layer, wherein both the waveguide layer and the active region are fabricated between a p-doped region and an n-doped region. An electro-absorption modulator is integrated into the semiconductor laser, wherein the electro-absorption modulator shares the waveguide layer with the semiconductor laser. | 2008-11-20 |
20080285604 | OPTICAL SCANNING APPARATUS, IMAGE FORMING APPARATUS AND CONTROL METHOD - An optical scanning apparatus capable of being applied to an image forming apparatus includes a light source which emits a light beam; a modulator which pulse-width modulates drive current supplied to the light source; and a current adding unit which adds a supplemental current to the pulse-width modulated drive current at the rising edge of a pulse thereof. | 2008-11-20 |
20080285605 | OPTICAL SCANNING APPARATUS - An optical scanning apparatus includes a light source configured to emit a plurality of laser beams from a plurality of light emitting parts, a beam shaping unit configured to shape the laser beams emitted from the light source, a detection unit provided outside the light source and configured to detect an amount of a laser beam that is not shaped by the beam shaping unit in the laser beams emitted from the light source in an area outside the beam shaping unit, and a light amount control unit configured to control amounts of the laser beams emitted from the light source based on a detection result detected by the detection unit. The detection unit includes a plurality of light-sensitive elements. The light amount control unit controls the light amounts of the laser beams emitted from the light source based on detection results of the light-sensitive elements. | 2008-11-20 |
20080285606 | METHOD AND APPARATUS FOR OPTICAL FREQUENCY COMB GENERATION USING A MONOLITHIC MICRO-RESONATOR - An optical frequency comb generator includes a laser device arranged for generating input laser light having a predetermined input light frequency, a dielectric micro-resonator having a cavity exhibiting a third order nonlinearity, so that the micro-resonator is capable of optical parametric generation providing parametrically generated light, and a waveguide optically coupled to the micro-resonator, the waveguide being arranged for in-coupling the input laser light into the micro-resonator and out-coupling the parametrically generated light out of the micro-resonator, wherein the laser device, the waveguide and the micro-resonator being arranged for resonantly in-coupling the laser input light to a mode of the micro-resonator with a minimum power level so that an optical field inside the cavity exceeds a predetermined cascaded parametric oscillation threshold at which the parametrically generated light includes frequencies of frequency sidebands of the input light frequency and of the sidebands thereof. | 2008-11-20 |
20080285607 | LASER TUBE WITH EXTERNAL ADJUSTABLE REACTACE FOR A GAS DISCHARGE RF-EXCITED LASER - A laser device is provided. The laser device includes a laser tube, oscillator circuitry, and a compensating reactive component that is arranged in parallel with the laser tube. | 2008-11-20 |
20080285608 | SURFACE EMITTING LASER DEVICE - A surface emitting laser device can further improve the light emission efficiency thereof to enlarge the degree of freedom of the device. The surface emitting laser device includes an active layer | 2008-11-20 |
20080285609 | Semiconductor laser diode - An inventive semiconductor laser diode includes a Group III nitride semiconductor layered structure having a major crystal growth plane defined by a non-polar or semi-polar-plane. The Group III nitride semiconductor layered structure includes: a p-type cladding layer and an n-type cladding layer; an In-containing p-type guide layer and an In-containing n-type guide layer held between the p-type cladding layer and the n-type cladding layer; and an In-containing light emitting layer held between the p-type guide layer and the n-type guide layer. | 2008-11-20 |
20080285610 | MONOLITHICALLY-PUMPED ERBIUM-DOPED WAVEGUIDE AMPLIFIERS AND LASERS - Disclosed is a method of doping an oxide. The example method includes forming at least one of an AlGaAs oxide or an InAlP oxide on a GaAs substrate, and incorporating Erbium into the at least one AlGaAs oxide or InAlP oxide via ion implantation to form an Erbium-doped oxide layer. The example method also includes annealing the substrate and the at least one AlGaAs oxide or InAlP oxide. | 2008-11-20 |
20080285611 | Semiconductor Laser Device - An object of the invention is to achieve a high output gain waveguide semiconductor laser device exhibiting high reliability by suppressing growth of <100>DLD. A semiconductor laser device includes a semiconductor laser structure of a gain waveguide formed on a semiconductor substrate in which two grooves extending in an oscillation direction thereof are formed, wherein a current injection stripe is arranged between the two grooves. Preferably, a quantum well constituting an active layer of the semiconductor laser device is composed of GaAs. | 2008-11-20 |
20080285612 | Surface emitting semiconductor laser - In a surface emitting semiconductor laser, a first distributed Bragg reflector includes first and second semiconductor layers of a first conductive type, and the first and second semiconductor layers are alternately arranged. A second distributed Bragg reflector includes first and second portions, and the first and second portions are arranged in a direction of a predetermined axis. The first portion is made of semiconductor, and the second portion is made of dielectric. An active layer is provided on the first distributed Bragg reflector, and the first portion of the second distributed Bragg reflector is provided between the active layer and the second portion of the second distributed Bragg reflector. The first distributed Bragg reflector, the active layer and the second distributed Bragg reflector are sequentially arranged in the direction of the predetermined axis. A III-V compound semiconductor region is provided on the first distributed Bragg reflector so as to surround the first portion of the second distributed Bragg reflector. | 2008-11-20 |
20080285613 | COLPITTS RF POWER OSCILLATOR FOR A GAS DISCHARGE LASER - A Colpitts oscillator that includes an RF-excited gas discharge laser tube as the feedback pi-network of the Colpitts oscillator. | 2008-11-20 |
20080285614 | ATOMIC LASERS WITH EXCIPLEX ASSISTED ABSORPTION - The present invention provides in one of the embodiments for either a continuous wave (cw) or pulsed alkali laser having an optical cavity resonant at a wavelength defined by an atomic transition, a van der Waals complex within the optical cavity, the van der Waals complex is formed from an alkali vapor joined with a polarizable gas, and a pump laser for optically pumping the van der Waals complex outside of the Lorentzian spectral wings wherein the van der Waals complex is excited to form an exciplex that dissociates forming an excited alkali vapor, generating laser emission output at the wavelength of the lasing transition. | 2008-11-20 |
20080285615 | Method for Determining at Least One State Variable of an Electric Arc Furnace, and Electric Arc Furnace - In a method for determining a state variable of an electric arc furnace, especially for determining the level of the foamed slag ( | 2008-11-20 |
20080285616 | System for testing the durability of objects under thermally hard circumstances - A system for testing objects such as electronic devices and mechanical components to see how they can withstand thermally hard circumstances created by a thermal agent supplied from a supplying system communicating with a testing section by and through an inlet flow path and an outlet flow path, wherein heat exchange is effected between the incoming agent and the outgoing agent, so that the remaining heat content, worm or cold, is taken and utilized for later uses. | 2008-11-20 |
20080285617 | DIELECTRIC RESONATOR THERMOMETER AND A METHOD OF USING THE SAME - A thermometer is provided. A housing has at least one opening. A dielectric element is disposed in the housing. At least one microwave guide is coupled to the at least one opening for providing a signal into the dielectric element for propagation at a resonant frequency and for receiving the signal from the dielectric element. A temperature determination unit receives the signal from the at least one microwave guide, measures the resonant frequency of the dielectric element, and determines the temperature of the dielectric element based on a relationship between resonant frequency and temperature of the dielectric element. | 2008-11-20 |
20080285618 | Infrared thermometer - An infrared thermometer is disclosed in the present invention, wherein the elastic covering of the probe thereof can be driven to extend outwardly like a cone for measuring ear temperature, or driven to retract inwardly into the housing for measuring forehead temperature, so as to achieve the objective of switching modes between measuring ear/forehead temperature conveniently. In addition, the elastic covering provides enhanced tender feeling to the ear or forehead of the person to be measured in both modes. The upper seat and the lower seat of the housing can be pivotally rotated to different angles to meet demands that may arise during the operation of the infrared thermometer, such as during self-measurement or measurement of other people, so as to facilitate the use of the infrared thermometer. | 2008-11-20 |
20080285619 | System and method for measuring temperature using electromagnetic transmissions within a well - Exemplary systems and methods are directed to measuring temperature in a borehole located below a surface of a landform using high-energy transmission. A sequence of electromagnetic (EM) energy pulses are generated from a signal generator located at the surface of the landform. The energy pulses are reflected at a ring frequency by one or more downhole transducers. The reflected energy pulses are received at a receiver, which is located at the surface, during a predetermined time interval. The receiver detects the received energy pulses through a time domain or frequency domain technique. Each detected ring frequency is correlated to an inductance of the associated downhole transducer. The inductance is correlated to a temperature of the borehole. | 2008-11-20 |
20080285620 | Aspirated Enhanced Total Air Temperature Probe - A total air temperature probe includes an inlet through which airflow enters a primary airflow passage through the probe. A sensor flow passage is connected to the primary flow passage. Bleed ports extend between the primary airflow passage and a cross-port which extends laterally across the probe. An aspiration aperture in the cross-port couples the cross-port to an internal cavity of a strut of the probe. The aspiration aperture can be centered within the cross-port to provide symmetrical deicing heater error behavior of the probe during changes in angle of attack. An aspiration tube couples the internal cavity of the probe to a pressure source. | 2008-11-20 |
20080285621 | Insulated retainer with thermometer for beverage container - A retainer for a beverage container formed of a flexible, stretchable material and having a temperature sensing means attached to a wall thereof. The retainer is capable of being turned inside out without damage thereto. | 2008-11-20 |
20080285622 | Detachable Tag-Based Temperature Sensor For Use In Heating Of Food And Cookware - A detachable, magnetic tagging mechanism, and a system and method for using it, for conveying information related to control over the sensing of parameters, such as the heating of cookware or other food containers, to a reader communicating with, e.g., heating controls of a heater. The tagging mechanism may be removably attached to the cookware or other food container, is heat-resistant, and its shape can be changed to accommodate the heating of different sizes and shapes of cookware or other items. The tagging mechanism, system and method of the invention may be employed with different types of heaters, such as but not limited to magnetic induction heaters, and may communicate with readers using RFID or other technology and other communication modes and media. | 2008-11-20 |
20080285623 | METHOD AND APPARATUS FOR THERMAL PROTECTION IN AN INTEGRATED CIRCUIT - Some embodiments discussed relate to an apparatus comprising a temperature sensor disposed in an integrated circuit, the temperature sensor including a bipolar transistor having a collector coupled to a portion of a substrate of the integrated circuit, and a bandgap reference circuit configured to generate a reference voltage, and a comparator coupled to the temperature sensor and the bandgap reference circuit, the comparator configured to receive a first voltage from the emitter of the bipolar transistor and the reference voltage from the bandgap reference circuit and generate a switch-off signal based on a voltage difference between the first voltage and the reference voltage. | 2008-11-20 |
20080285624 | Temperature Sensor Circuit - A temperature sensor circuit whose output voltage has high precision is provided. The temperature sensor circuit includes a Darlington circuit having bipolar transistors, a constant current circuit, and a current control circuit. Emitter currents of the bipolar transistors are made equal to one another by the constant current circuit. Base currents corresponding to the emitter currents of the respective bipolar transistors are sunk by the current control circuit. | 2008-11-20 |
20080285625 | FREQUENCY SYNTHESIZER APPLIED TO FREQUENCY HOPPING SYSTEM - A frequency synthesizer applied to a frequency hopping system includes a voltage controlled oscillator (VCO), a phase lock loop (PLL) system, a second frequency divider, a first SSB mixer, a second SSB mixer, and a multiplexer. The VCO generates an oscillating frequency. The PLL system includes a first frequency divider and divides the oscillating frequency by 10 to generate a first dividing signal. The second frequency divider divides the oscillating frequency by 2 to generate a second dividing signal and further divides the second dividing signal by 2 to generate a third dividing signal. The first SSB mixer mixes frequencies of the second and third dividing signals to generate a first mixing signal. The second SSB mixer mixes frequencies of the first mixing signal and the first dividing signal to generate a second mixing signal. The Multiplexer determines to output the first mixing signal or the second mixing signal. | 2008-11-20 |
20080285626 | EXCLUSIVE PAIRING TECHNIQUE FOR BLUETOOTH COMPLIANT MEDICAL DEVICES - A method and system of establishing communications between at least two independent software modules in a safety critical system, such as a medical system, is provided. The design comprises providing an exclusive Bluetooth connection between at least two wireless devices. A master wireless device is configured with Bluetooth master device functionality and a slave wireless device is configured with Bluetooth slave device functionality. The wireless devices are employed in performing a medical procedure. The method further comprises acquiring a stored unique address from the slave wireless device over the Bluetooth connection, comparing the stored unique address to a master wireless device unique address available at the master wireless device, and exclusively pairing the master wireless device and the slave wireless device when the unique address acquired from the slave wireless device is found to identically match the master wireless device unique address. | 2008-11-20 |
20080285627 | Method for Synchronisation and Control in Wireless Communication Systems - Method and device making it possible to synchronize a master station and one or more subscriber stations in a wireless communications network, comprising at least one processor disposed at the level of each of the subscriber stations and suitable for calculating each subscriber's transmit time adjustment by taking account of the rate of variation of the satellite-subscriber path, a master station side processor suitable for measuring the loop error and a processor suitable for comparing the value of the error with a threshold value and as soon as the loop error value for a subscriber station is less than or equal to the threshold value, for giving said subscriber station permission to send its traffic. | 2008-11-20 |
20080285628 | COMMUNICATIONS SYSTEMS AND METHODS FOR REMOTELY CONTROLLED VEHICLES - A remote controller and a remotely controlled vehicle employ, at least in part, frequency hopping spread spectrum communications to communicate information between them. The remote controller transmits information for controlling the remotely controlled vehicle on substantially all of the frequencies of a hop sequence established by the two devices, but only transmits information indicative of the established communications between the devices on a subset of the frequencies of the sequence, the subset of frequencies comprising less than substantially all of the frequencies of the sequence. Additionally, the remote controller continues to transmit the information for controlling the remotely controlled vehicle on substantially all of the frequencies of the sequence even if the remotely controlled vehicle loses communication with the remote controller. A mathematical function is applied to identifiers associated with each device to generate an identifier representative of the established communications link between them. | 2008-11-20 |
20080285629 | METHOD AND APPARATUS FOR TRANSFERRING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM - Data is transferred in a wireless communication system, such as a wireless spread spectrum communication system. A plurality of transmitting antennas are provided. Data is encoded to produce a plurality of data streams for each of the plurality of codes. The plurality of data streams are spread with the plurality of spreading codes, and for each transmitting antenna, one of the spread data streams of each code together is combined to produce a spread data vector. Each transmitting antenna transmits its spread data vector. The transmitted spread data vectors are received by each of a plurality of receiving antennas as a received version, and the data is recovered using the received versions. | 2008-11-20 |
20080285630 | METHOD AND APPARATUS FOR REDUCING CODE PHASE SEARCH SPACE - A GPS communication system including a server and a client, each including a GPS receiver, for reducing the code phase search space of the GPS receiver of the client. The communication system includes a transmitter for transmitting timing information from the server to the client to help the client locate a first satellite, and a receiver for using timing differences between the satellites to synchronize and locate other satellites. The code phase search space is reduced by reducing the number of phase hypotheses that must be calculated to establish communication between the server and the client. | 2008-11-20 |
20080285631 | SPREAD SPECTRUM COMMUNICATION METHOD AND SYSTEM USING DIVERSITY CORRELATION AND MULTI-USER DETECTION - A communication system transmits and receives a plurality of spread-spectrum signals having differences in at least one diversity parameter. The signals are highly correlated when their diversity parameters are similar, and the signals are uncorrelated when at least one diversity parameter is different Any combination of a transmitter, a receiver, and a communication channel may diversity-encode the signals to effect differences in their diversity parameters. A receiver diversity-decoder compensates for differences in a diversity-parameter of at least one received signal to make the signal highly correlated with at least one other received signal. A correlator combines at least two of the received signals to recover an embedded information signal. The communication system enables the use of true-noise signals for spreading information signals, provides simplified receiver designs, and enables antenna arrays to spatially process spread-spectrum signals. | 2008-11-20 |
20080285632 | DECODING OF THE OVERHEAD CHANNELS OF THE GEO SATELLITE REVERSE LINK - A power efficient technique is used to demodulate the coded overhead channels of a GEO satellite uplink. A coherent receiver used in a wireless communication system is able to determine the information conveyed in the overhead channel, by effecting channel estimates from codewords extracted from a pilot signal. A valid set of codewords is established. Pilot symbols are extracted from a pilot signal and a channel estimate is made from the pilot signal. Codewords in the set of valid codewords are correlated and a channel phase ambiguity in the signals is removed and a codeword with the largest correlation is chosen. The chosen codeword is used to create a revised channel estimate. | 2008-11-20 |
20080285633 | Communication devices with integrated thermal sensing circuit and methods for use therewith - A communication device includes an integrated circuit having an on-chip thermal sensing circuit that generates a temperature signal based on a temperature of the integrated circuit. A processing module processes the temperature signal to generate temperature information that can be transmitted to a remote device or processes the temperature signal to generate control for adjusting transmit and/or receive characteristics of an RF transceiver. | 2008-11-20 |
20080285634 | Near-end, far-end and echo cancellers in a multi-channel transceiver system - A transceiver according to the present invention receives data from a plurality of frequency separated transmission channels from a complementary transmitter and includes an interference filter for correcting for interference from transmitters other than the complementary transmitter. The interference filter, for example, can correct for near-end cross-talk and echo interference filtering and/or far-end crosstalk interference filtering is presented. A transceiver can include a transmitter portion and a receiver portion with one or more receivers coupled to receives signals in the plurality of frequency separated transmission channels. A baseband transmitter can be combined with one or more transmitters that transmit data into one of the frequency separated transmission bands. Any combination of modulation systems can be utilized (e.g. PAM for the baseband and QAM for the frequency separated bands). In some embodiments, one baseband PAM transmitter is combined with one or more frequency separated QAM transmitters. | 2008-11-20 |
20080285635 | METHODS AND APPARATUS TO QUALIFY A WIRE-PAIR FOR A DIGITAL SUBSCRIBER LINE (DSL) SERVICE - Methods and apparatus to qualify a wire-pair for a digital subscriber line (DSL) service are disclosed. An example method comprises modifying a digital subscriber line (DSL) signal received on a wire-pair at a DSL modem to emulate an environmental condition, and qualifying the wire-pair for a DSL service based on a DSL connection rate achieved by the DSL modem during the emulated environmental condition. | 2008-11-20 |
20080285636 | CALIBRATING JITTER - Calibrating jitter in a communication channel between test equipment and a connection for a device under test (DUT) includes sampling test data in the communication channel at about a point of the connection to produce sampled data, where the test data travels through the communication channel at a first rate, and where the test data is sampled at a second rate that is less than the first rate, determining a first amount of jitter in the sampled data relative to the test data, and determining a second amount of jitter at about the point of connection based on the first amount of jitter. | 2008-11-20 |
20080285637 | DEVICE AND METHOD FOR CALIBRATING MIMO SYSTEMS - A device and method for calibrating MIMO systems are disclosed. In one aspect, a calibration circuit comprises at least a first and a second input/output port, each arranged for being connected to a different transmitter/receiver pair of a multiple input multiple output (MIMO) system. The circuit further comprises at least a third and a fourth input/output port, each arranged for being connected to a different antenna. The circuit further comprises an attenuator having a first attenuator port and a second attenuator port. The circuit further comprises a first and a second non-reciprocal switch, the first switch being arranged for establishing a connection between the first input/output port and either the third input/output port or the first attenuator port, and the second switch arranged for establishing a connection between the second input/output port and either the fourth input/output port or the second attenuator port. | 2008-11-20 |
20080285638 | Channel equalization in a receiver - A method of estimating a channel response of a channel is provided that includes transforming a frequency domain signal received via the channel into a time domain signal and searching the time domain signal for a location of minimum energy. The method also includes padding the time domain signal with zeroes at the location of minimum energy and transforming the padded time domain signal to a second frequency domain signal. The second frequency domain signal is used as an estimated channel response for the channel. | 2008-11-20 |
20080285639 | OFFSET CALIBRATION METHODS AND RADIO FREQUENCY DATA PATH CIRCUITS - An offset calibration method is provided. Two input terminals of an equalizer are switched to a common voltage at a first time point, wherein the equalizer generates a first equalized signal and a second equalized signal according to the common voltage. It is determined whether a first offset voltage is present in the equalizer according to the first and second equalized signals generated from the common voltage. If the first offset voltage is determined to be present in the equalizer, a first compensation voltage is provided to the equalizer. | 2008-11-20 |
20080285640 | RF Transmitter With Nonlinear Predistortion and Method Therefor - An RF transmitter ( | 2008-11-20 |
20080285641 | SLICER INPUT AND FEEDBACK FILTER CONTENTS FOR BLOCK CODED DIGITAL COMMUNICATIONS - Improved decision directed adaptation and decision feedback equalizers are provided in a block coded digital communication system. The performance of a receiver is significantly improved by allowing the decision feedback equalizer to perform time-tracking and residual frequency offset compensation during the data portion of a frame. This is accomplished by capitalizing on the inherent correlation among the chips of a code word in a block coded digital communication system to identify certain instances where more reliable symbol estimates can be derived from a sliced chip without introduction the delay inherent in decoding. As the more reliable symbol estimates are fed back into the chip slicer, the total efficiency of the decision feedback equalizer is improved and the more reliable symbol estimates can be used to replace older content in the feedback filter to further improve the accuracy of the modified slicer input and further decrease the effects of error propagation by the decision feedback equalizer. | 2008-11-20 |
20080285642 | Two-dimensional filtering architecture - A first filtering module filters actual pixel values in a first direction (e.g., vertically), and a second filtering module filters interpolated pixel values received from the first filtering module in a second direction (e.g., horizontally). Also, a third filtering module filters actual pixels in the second direction. A computation module is coupled to the first, second and, third filtering modules. The computation module generates quarter-sample interpolated pixel values. These values are based on combinations of pixel values selected from actual pixel values and interpolated pixel values received from the first, second and, third filtering modules. | 2008-11-20 |
20080285643 | METHOD AND SYSTEM FOR TRANSFORMING UNCOMPRESSED VIDEO TRAFFIC TO NETWORK-AWARE ETHERNET TRAFFIC WITH A/V BRIDGING CAPABILITIES AND A/V BRIDGING EXTENSIONS - Aspects of a system for transforming uncompressed video traffic to network-aware Ethernet traffic with A/V bridging capabilities and A/V bridging extensions may include a graphics processing unit (GPU) that may enable encapsulation of uncompressed video data and/or auxiliary channel data within a Display Port protocol data unit (PDU). A LAN subsystem may enable encapsulation of the Display Port PDU within an encapsulating PDU. The LAN subsystem may enable determination of a traffic class designation associated with the encapsulating PDU. The LAN subsystem may enable transmission of the encapsulating PDU via a network based on the traffic class designation. | 2008-11-20 |