Patents Assigned to Broadcom
  • COOPERATIVE TRANSCEIVING BETWEEN WIRELESS INTERFACE DEVICES OF A HOST DEVICE
    Publication number: 20120106457
    Abstract: A method and/or apparatus for cooperative transceiving between wireless interface devices of a host device includes processing that begins by providing an indication of receiving an inbound packet from one wireless interface device (e.g., Bluetooth compliant radio transceiver, IEEE 802.11 compliant radio transceiver, etc.) to another. The wireless interlace device receiving the indication processes the indication and, based on the processing, transmits an outbound packet in accordance with the processing of the indication. For example, the wireless interface device receiving the indication may delay transmission until the other wireless interface device has received the packet, or, if transmission of the packet would not interfere with the receiving of the packet by the other wireless interface device, the wireless interface device receiving the indication would transmit its packet.
    Type: Application
    Filed: January 9, 2012
    Publication date: May 3, 2012
    Applicant: Broadcom Corporation
    Inventors: Edward H. Frank, Brima B. Ibrahim
  • PROVIDING POWER OVER ETHERNET WITHIN A VEHICULAR COMMUNICATION NETWORK
    Publication number: 20120110356
    Abstract: A power distribution system within a vehicle operates to provide power over Ethernet to a plurality of network node modules coupled to a vehicular communication network of the vehicle.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael William Diab, Nicholas Ilyadis
  • CONFIGURABLE RF SECTIONS FOR RECEIVER AND TRANSMITTER AND METHODS FOR USE THEREWITH
    Publication number: 20120108183
    Abstract: A transceiver includes an RF receiver section having a plurality of RF receiver stages configured in parallel, and a configurable RF transmitter section. The plurality of RF receiver stages are selectively enabled in response to a control signal. The configurable RF transmitter section is configured to operate in one of: a mixed signal mode of operation and a phase modulation mode of operation, in response to the control signal.
    Type: Application
    Filed: January 10, 2012
    Publication date: May 3, 2012
    Applicant: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • VEHICLE NETWORK NODE MODULE
    Publication number: 20120106537
    Abstract: A vehicle network node module includes device buffers, a network buffer, a switch circuit, and a processing module. The device buffers temporarily store outgoing device packets from, and temporarily store incoming device packets for, vehicle devices in accordance with a locally managed prioritization scheme. The network buffer receives incoming network packets from, and outputs the outgoing network packets to, a vehicle network fabric in accordance with a global vehicle network protocol. The network buffer also temporarily stores the incoming network packets and the outgoing network packets in accordance with the locally managed prioritization scheme. The switching circuit selectively couples the network buffer to individual ones of the device buffers in accordance with the locally managed prioritization scheme.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: NARIMAN YOUSEFI, YONGBUM KIM, JOHN WALLEY, SHERMAN (XUEMIN) CHEN, WAEL W. DIAB, NICHOLAS ILYADIS
  • POWER MANAGEMENT WITHIN A VEHICULAR COMMUNICATION NETWORK
    Publication number: 20120109407
    Abstract: Power management within a vehicle is achieved by maintaining individual and/or power island power saving options for each of a plurality of devices coupled to a vehicular communication network of the vehicle. Upon determining that power savings should be enabled for a device, at least one of the power saving options for the device is selected and applied.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael William Diab, Nicholas Ilyadis
  • PRIORITY PACKET PROCESSING
    Publication number: 20120106447
    Abstract: A network node in a vehicular network processes packets based on a prioritization scheme. The prioritization scheme uses packet type, priority, source, destination, or other information to determine a priority of the packets. Packets can be stored in one of multiple queues organized according to packet type, or other criteria. In some cases, only one queue is used. The packets are time stamped when put into a queue, and a time to live is calculated based on the timestamp. The time to live, as well as other factors such as packet type, packet priority, packet source, and packet destination can be used to adjust a packet's priority within the queue. Packets are transmitted from the queues in priority order. In some cases, the network node can identify a top-priority packet, and transmit the top priority packet without first storing the packet in the queue.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: NARIMAN YOUSEFI, YONGBUM KIM, JOHN WALLEY, SHERMAN (XUEMIN) CHEN, WAEL WILLIAM DIAB, NICHOLAS ILYADIS
  • UNIFIED VEHICLE NETWORK FRAME PROTOCOL
    Publication number: 20120106448
    Abstract: A network node module includes a processing module and memory. The processing module is operable to generate a header section of a frame for transmission within a unified vehicle communication network. The header section includes a preamble, routing information, and a vehicle network field, which includes information that identifies a type of the frame. The processing module is further operable to generate a payload section of the frame. The payload section includes data payload and an integrity check field. The processing module is further operable to transmit the frame to the unified vehicle communication network in accordance with a global vehicle network communication protocol.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: NARIMAN YOUSEFI, YONGBUM KIM, JOHN WALLEY, SHERMAN (XUEMIN) CHEN, WAEL W. DIAB, NICHOLAS ILYADIS
  • VEHICLE COMMUNICATION NETWORK INCLUDING WIRELESS COMMUNICATIONS
    Publication number: 20120106469
    Abstract: A wired and wireless vehicle communication network includes network node modules, switch modules, bridge-routing modules, and a network manager. The network manager is operable to determine a wired packet communication mode and/or a wireless packet communication mode. When the network is in the wireless packet communication mode, the network manager coordinates wireless communication of packets among the network node modules, the switch modules, and the bridge-routing modules based on individual content of the packets and wireless channel mapping. When the network is in the wired packet communication mode, the network manager coordinates wired communication of packets among the network node modules, the switch modules, and the bridge-routing modules based on the individual content of the packets and in accordance with a global vehicle network communication protocol.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: NARIMAN YOUSEFI, YONGBUM KIM, JOHN WALLEY, SHERMAN (XUEMIN) CHEN, WAEL W. DIAB, NICHOLAS ILYADIS
  • METHOD AND APPARATUS TO IMPROVE ACQUISITION OF A QUADRATURE AMPLITUDE MODULATED (QAM) SIGNAL HAVING A FREQUENCY OFFSET
    Publication number: 20120106678
    Abstract: A method and apparatus are described that result in an improved acquisition of a received communication signal containing a large frequency offset. The method and apparatus raises a derotated sequence of data to a power of an integer provide a sinusoidal spectral component. The method and apparatus determines a cross product based upon the sinusoidal spectral component to provide a phase error. The method and apparatus determines an oscillator signal based upon the phase error. The method and apparatus adjusts the received communication signal based upon the oscillator signal to compensate for the large frequency offset to provide the derotated sequence of data.
    Type: Application
    Filed: June 27, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Bruce J. CURRIVAN, Loke Kun Tan, Thomas Joseph Kolze, Lin He
  • Multi-Level Video Processing Within A Vehicular Communication Network
    Publication number: 20120105637
    Abstract: A system for performing multi-level video processing within a vehicle includes a pre-processing module for determining an encoding mode and enabling one or more levels of encoding based on the encoding mode. The pre-processing module further receives a video stream from a camera attached to the vehicle via a vehicular communication network and encodes the video stream based on the encoding mode to produce a packet stream output. The system further includes a video decoder for receiving the packet stream output and decoding the packet stream output in accordance with the encoding mode to produce a decoded video output.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael W. Diab, Nicholas Ilyadis
  • COOPERATIVE TRANSCEIVING BETWEEN WIRELESS INTERFACE DEVICES OF A HOST DEVICE WITH SHARED MODULES
    Publication number: 20120106419
    Abstract: A circuit includes a first wireless interface circuit that transceives packetized data between a host module and a first external device in accordance with a first wireless communication protocol, wherein the first wireless protocol carries wireless telephony data for communication with a wireless telephony network. A second wireless interface circuit transceives packetized data between the host module and a second external device in accordance with a second wireless communication protocol. The second wireless interface circuit includes at least one module that is shared with first wireless interface circuit. The first wireless interface circuit and the second wireless interface circuit operate in accordance with a wireless interface schedule that includes a first time interval where the first wireless interface device and the second wireless interface device contemporaneously use the at least one module.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Mark Gonikberg, Prasanna Desai, Brima B. Ibrahim
  • Decoding side intra-prediction derivation for video coding
    Publication number: 20120106640
    Abstract: Decoding side intra-prediction derivation for video coding. Just decoded pixels within a given picture (image) (e.g., such as a given picture (image) within video data) are employed for decoding other pixels within that very same picture (image) using prediction vectors extending from the just decoded pixels to the pixels currently being decoded. In one instance, this intra-prediction operation in accordance with video or image processing can also operate using relatively limited information provided from the device that provides or transmits the video data to the device in which it undergoes processing. Coarse and/or refined direction information corresponding to these prediction vectors may be provided from the device that provides or transmits the video data to the device in which it undergoes processing.
    Type: Application
    Filed: November 15, 2010
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Ba-Zhong Shen, Brian Heng
  • Auto-Aware Dynamic Control Policy for Energy Efficiency
    Publication number: 20120106363
    Abstract: An auto-aware dynamic control policy for energy efficiency. A discovery node in a network can be designed to transmit periodically discovery traffic to a plurality of other network nodes in the network. Responses to the discovery traffic can be used by the discovery node to ascertain real-time activity in the network. Measures of the real-time activity can be used to adjust a control policy in the discovery node.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Applicant: Broadcom Corporation
    Inventor: Wael William Diab
  • MULTIMEDIA PROCESSING WITHIN A VEHICULAR COMMUNICATION NETWORK
    Publication number: 20120106653
    Abstract: A head end unit for performing multimedia processing within a vehicle is capable in one embodiment of overlaying video graphics onto video streams to produce enhanced video streams. The head end unit is further for converting a high-resolution file to a low-resolution file for rendering on one or more low-resolution clients of the vehicle.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael William Diab, Nicholas Ilyadis
  • METHOD AND SYSTEM FOR BEAMFORMING IN A MULTIPLE USER MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) COMMUNICATION SYSTEM USING A CODEBOOK
    Publication number: 20120106603
    Abstract: A method and system for beamforming in a multiple user multiple input multiple output (MIMO) communication system using a codebook may include a processor in a node B that enables generation of an interference cancellation matrix (WR). The interference cancellation matrix, also referred to as a matched filter, may enable a composite signal (Y) to be represented as a plurality of subsidiary signals (yi), each of which is transmitted by the node B for reception at a corresponding ith UE station. Each of the subsidiary signals yi may be generated based on a corresponding one of a plurality of data stream signals (xi). The processor may enable generation of a precoding matrix (WT) based on the interference cancellation matrix. A transmitter within the node B may enable generation of a plurality of signals based on the precoding matrix. The signals may be transmitted via a wireless communication medium.
    Type: Application
    Filed: January 12, 2012
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Joonsuk Kim, Sirikiat Ariyavisitakul
  • SINK CURRENT ADAPTATION BASED ON POWER SUPPLY DETECTION
    Publication number: 20120104994
    Abstract: Techniques are provided for selecting a charge current to be sunk by a mobile electronic device. A charging device is received at a connector of the mobile electronic device. The charging device is configured to supply a charge current to a rechargeable battery of the mobile electronic device. One or more data signals is/are received from the charging device at an interface circuit of the mobile electronic device on one or more data signal lines through the connector. One or more control signals are applied to the interface circuit to enable data signal values to be generated for the data signal(s) based on the control signal(s) and a type of the charging device. The data signal values are mapped to a maximum charge current for the rechargeable battery. The charge current supplied by the charging device to the rechargeable battery is limited to the selected maximum charge current.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Domitille Esnard-Domerego, John Walley, Long Wang
  • VEHICLE NETWORK LINK MODULE
    Publication number: 20120106544
    Abstract: A vehicle network link module includes network fabric ports, a port, a switching circuit, and a link manager. The network fabric ports are operable for coupling to corresponding network fabric ports of another vehicle network fabric link module. The port is operable for coupling to a port of a vehicle network module. The switching circuit is operable to connect an active network fabric port to the port. The link manager determines whether vehicle network packet conveyance via the active network fabric port has degenerated below a threshold. When the vehicle network packet conveyance has degenerated below a threshold, the link manager determines use mode of the active network fabric port. The link manager processing module then selects a new active network fabric port based on the use mode. The link manager then activates the new active network fabric port for coupling via the switching circuit to the port.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: NARIMAN YOUSEFI, YONGBUM KIM, JOHN WALLEY, SHERMAN (XUEMIN) CHEN, WAEL W. DIAB, NICHOLAS ILYADIS
  • Managing Devices Within A Vehicular Communication Network
    Publication number: 20120106446
    Abstract: A network node module within a vehicle operates to manage devices coupled to a vehicular communication network of the vehicle based on a use mode defining rights and privileges for operating in the vehicular communication network. Upon being configured in accordance with a particular use mode of a set of use modes, the network node module can identify a device coupled to the vehicular communication network and enable the device to operate within the vehicular communication network in accordance with the use mode. The network node module is securely reconfigurable to any use mode in the set of use modes.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael William Diab, Nicholas Ilyadis
  • SWITCH MODULE
    Publication number: 20120106526
    Abstract: A switching module can route packets between a network fabric and a local network, both of which form a closed network such as a vehicular network. The switching module provides local network management functions, and handles packet transfers between the local network and the network fabric. The switching module uses network information, which can include information about packet content type and network topology, to determine a packet's priority, and an appropriate switching protocol to use for processing and routing packets.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 3, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: NARIMAN YOUSEFI, YONGBUM KIM, JOHN WALLEY, SHERMAN (XUEMIN) CHEN, WAEL W. DIAB, NICHOLAS ILYADIS
  • Flexible Upstream PHY Burst Profile Parameters to Improve Performance of Short Bursts in Impulse Noise
    Publication number: 20120106573
    Abstract: A single carrier cable modem can be initialized on multiple channels. By initializing a cable modern on more than one channel, the error rate performance of short data packets in cable modems in an impulsive noise environment is improved. The advantage of low symbol rate transmission for short packets in an impulse noise environment is achieved without sacrificing burst capacity at a cable modem and without the complexity of transmitting multiple symbol waveforms simultaneously at a cable modem.
    Type: Application
    Filed: January 9, 2012
    Publication date: May 3, 2012
    Applicant: Broadcom Corporation
    Inventor: Thomas J. Kolze