Patents Assigned to Broadcom
  • Publication number: 20150103756
    Abstract: A control point, such as a laptop, phone, wireless access point, or other device, transmits beacons to receiving stations in a wireless network. The control point may reduce power and bandwidth consumption by transmitting beacons with smaller payloads and/or less frequently to sectors with no associated stations. The stations, which may include laptops, phones, or other devices may reduce power consumption be powering on their antennas when beacons may be transmitted to their sectors.
    Type: Application
    Filed: November 4, 2013
    Publication date: April 16, 2015
    Applicant: Broadcom Corporation
    Inventor: Rajesh Kumar Sinha
  • Publication number: 20150103929
    Abstract: Transcoding multiple media elements for independent wireless delivery. Respective media or multimedia elements are selectively and respectively encoded and/or transcoded. Such respective and selective processing of different media elements provides for their unbundled and independent communication to one or more other devices. In one instance, different respective overlays of a display (e.g., a computer, TV, PDA display, etc.) are respectively and selectively transcoded and/or encoded to generate different respective streams that may each be handled differently as a function of any number of parameters (e.g., media element type, content, communication channel characteristic, source proximity, priority, etc.). Different types of media elements include photo/image, video, graphics, text, audio, picture-in-picture, two-dimensional (2D), three-dimensional (3D), and/or other types of media elements as may be included within a given configuration of a display.
    Type: Application
    Filed: November 24, 2014
    Publication date: April 16, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: James F. Dougherty, III, Yasantha N. Rajakarunanayake, Alexander G. MacInnis, James D. Bennett, Jeyhan Karaoguz
  • Publication number: 20150105016
    Abstract: A wireless communication device for communicating in the near-field via active load modulation. The device including an antenna configured to receive a magnetic field, a recovery device configured to recover a clock from the magnetic field, and a multiplexer configured to receive the recovered clock and a reference clock, and to output one of the recovered clock and the reference clock based on a current operational state of the wireless communication device, The wireless communication device further including a shunt regulator configured to produce the active load modulation by modulating an impedance of the wireless communication device, a phase-locked loop (PLL) configured to receive one of the recovered clock and the reference clock and to utilize the received clock to control the active load modulation, and a driver configured to contribute to the active load modulation by adjusting an amplitude of a voltage across the antenna.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Applicant: Broadcom Corporation
    Inventor: Alastair LEFLEY
  • Patent number: 9009499
    Abstract: A system for managing energy efficiency and control mechanisms in a network having a virtual machine includes a virtual machine power manager (VMPM) coupled to a virtual machine manager (VMM) and a network component. The VMPM is configured to receive power information from the network component, analyze the power information, generate configuration instructions based on the analyzing and send the configuration instructions to the VMM.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventor: Wael William Diab
  • Patent number: 9008734
    Abstract: A wireless communication device is disclosed that is capable of reduced power consumption. Uplink and downlink sub-frames in a WiMAX, 802.16m or LTE environment often include several vacant symbols during which power-hungry hardware and software components need not operate at full power. By analyzing a physical layer beacon and control information of a received signal, the specific locations of data bursts can be determined, as well as periods of needed operation of a receiver module to effectively decode those data bursts. The receiver module can otherwise be controlled to operate in a LOW power state during remaining periods of vacant time, thereby conserving power consumption and extending battery life.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Shashidhar Vummintala, Gowrisankar Somichetty, Sriram Rajagopal, Sindhu Verma, Manish Airy, Hariprasad Gangadharan, Ramasamy Palanisamy Pugazhanthi, Felix Varghese, Erik Stauffer
  • Patent number: 9008125
    Abstract: Aspects of a method and system for MAC and PHY synchronization for energy efficient networking are provided. In this regard, an interface that enables communication between a MAC controller and a PHY device may be configured to operate in an energy saving mode. While the interface is operating in an energy saving mode, synchronization between the MAC controller and the PHY device may be maintained by one or both of adjusting a clock generated for the interface and/or communicating dummy data via the interface. The clock may be adjusted by one or more of adjusting a frequency of the clock, adjusting an amplitude of the clock, and/or duty cycling the clock. The MAC controller and/or the PHY device may generate the dummy data. The PHY device and/or the MAC controller may discard the dummy data upon receiving the dummy data.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventor: Wael William Diab
  • Patent number: 9008244
    Abstract: Communication devices coupled via a communication link may comprise physical layer devices that may be operable to determine presence of a received signal and to mitigate noise in the signal prior to processing and/or validating the signal. Analog and/or digital signal processing may be utilized to process the signal and/or mitigate noise in the signal. Noise mitigation may comprise near-end crosstalk cancelling and/or echo cancelling and/or may utilize local transmit signal information. Subsequent to noise mitigation, samples of the noise reduced signal may be accumulated and/or an average signal strength and/or average signal power level may be determined. The average signal strength and/or average signal power level may be compared to one or more thresholds which may be configurable and/or programmable.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Mehmet Tazebay, Scott Powell, Peiqing Wang, Bruce Conway, Sang Bui
  • Patent number: 9008248
    Abstract: Systems and methods for demodulating a plurality of contiguous channels contained within a bandlimited portion of a radio-frequency (RF) input signal are provided. In an embodiment, the bandlimited portion of the RF input signal is down-converted to baseband. After down-conversion, the bandlimited portion overlaps at baseband with a mirror image of the bandlimited portion. The plurality of contiguous channels within the down-converted signal similarly overlap at baseband and subsequently occupy a bandwidth substantially equal to half that required before down-converting. Image rejection is performed in the digital domain to recover each of the plurality of overlapping channels.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Francesco Gatta, Ramon Gomez, Leonard Dauphinee, Young Joon Shin, Hanli Zou, Massimo Brandolini, Giuseppe Cusmai
  • Patent number: 9008694
    Abstract: An apparatus and method is provided for indoor/outdoor transition detection of devices to improve selection of the navigation algorithms. A mobile device can scan resources such as radio frequency (RF) sources in its vicinity and compare the scanned resources with a set of indoor-only resources to determine whether the mobile device is located inside a structure (e.g., indoor) or outside the structure (e.g., outdoor). The techniques provide an apparatus and method to determine when a device transitions between indoor and outdoor to efficiently use appropriate algorithm for positioning and/or navigation.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Richard Fuller, Steven Malkos
  • Patent number: 9008592
    Abstract: A transmitter includes a power amplifier driver connected with a first transformer and a second transformer. The first transformer is configured for a first band mode and the second transformer is configured for a second band mode. The power amplifier driver drives both the first transformer and the second transformer.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Ahmad Mirzaei, Hooman Darabi
  • Patent number: 9008128
    Abstract: A method for frequency synchronization of a multiport device may include recovering a clock frequency of a master port of a first device that is linked to the multiport device at a slave port of the multiport device. A clock frequency of the slave port may be locked to the recovered-clock frequency of the master port of the first device. Frequency data may be stored in a first frequency register associated with the slave port. The stored frequency data may include a difference between the recovered-clock frequency of the master port of the first device and a local-clock frequency of the multiport device. A clock frequency of one or more master ports of the multiport device may be synchronized with the locked clock frequency of the slave port by coupling the first frequency register to frequency registers associated with one or more master ports.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Ahmad Chini, Mehmet Vakif Tazebay
  • Patent number: 9007971
    Abstract: Aspects of a method and system for energy management are provided. In one embodiment based on expected activity in one or more nodes in a network, processing capabilities in the network may be matched with expected processing loads. Processing loads in a network node may be determined based on deep packet inspection of traffic transmitted/received by the node, inspection of data exchanged between subsystems in the node, a state of an operating system running in the node, data processed or waiting to be processed in the node, information exchanged between an energy management entity in the node and an energy management entity in one or more other nodes, computing tasks delegated to the node, and/or instructions transmitted along with a computing task delegated to the node.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Uri Elzur, Scott Powell
  • Patent number: 9009032
    Abstract: A method and system for performing sample rate conversion is provided. The method may include configuring a system to convert a sample rate of a first audio channel of a plurality of audio channels to produce a first audio stream of samples. The system may be dynamically reconfigured to convert a sample rate of a second of the plurality of audio channels to produce a second audio stream of samples, wherein the first and second audio streams are output from the system at the same time. The method may further include arbitrating between request for additional data from the first and second audio stream of samples, where processing of the first channel is suspended when the request corresponds to a second channel that is of higher priority.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: David Wu, Keith Klinger
  • Patent number: 9008105
    Abstract: A system and method for 10/40 gigabit Ethernet multi-lane gearbox. In one embodiment, a gearbox device includes one or more inputs on a line side of the device, the one or more inputs being configured to receive four asynchronous 10 Gbit/s Ethernet channels, a marking module that is configured to insert virtual lane markers into four data flows at defined intervals to produce four marked data flows, and a 4:n physical media attachment (PMA) module that is configured to generate one or more higher-rate data flows based on the four marked data flows.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventor: Ali Ghiasi
  • Patent number: 9008601
    Abstract: A circuit for a single differential-inductor oscillator with common-mode resonance may include a tank circuit formed by coupling a first inductor with a pair of first capacitors; a cross-coupled transistor pair coupled to the tank circuit; and one or more second capacitors coupled to the tank circuit and the cross-coupled transistors. The single differential-inductor oscillator may be configured such that a common mode (CM) resonance frequency (FCM) associated with the single differential-inductor oscillator is at twice a differential resonance frequency (FD) associated with the single differential-inductor oscillator.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: David Patrick Murphy, Hooman Darabi
  • Patent number: 9008593
    Abstract: Methods and systems for 60 GHz distributed communication are disclosed and may include generating IF signals from baseband signals in a computing device with wireless capability. The IF signals may be communicated to remote RF modules within the computing device via coaxial lines. The IF signals may be up-converted to RF signals and transmitted via the RF modules. The IF signals in the coaxial lines may be tapped via taps coupled to the RF modules. The baseband signals may comprise video data, Internet streamed data, and/or data from a local data source. The RF signals may be communicated to a display device. Control signals for the RF devices may be communicated utilizing the coaxial lines. One or more of the RF devices may be selected based on a direction to a receiving device. The remote RF devices may comprise mixers. The RF signals may comprise 60 GHz signals.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 9007983
    Abstract: Channel characterization and training within multiple user, multiple access, and/or MIMO wireless communications. Within such communication systems, there can be a number of devices (e.g., STAs) that communicate with a single device (e.g., AP). A multi-cast sounding frame may be transmitted from a transmitting device to a number of receiving devices. Appropriate scheduling or ordering of feedback signals from some or all of the receiving devices may be performed explicitly (e.g., sounding frame sent from the transmitting device to a receiving device) or implicitly (e.g., control information sent from the transmitting device to the receiving device, sounding frame sent to the transmitting device from the receiving device). Such characterization and training is with respect to a channel or path in which data will subsequently follow. Such characterization and training can be performed in accordance with group membership (e.g., with respect to only some of the receiving devices).
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Matthew James Fischer, Joonsuk Kim, Peiman Amini, Joseph Paul Lauer, Vinko Erceg
  • Patent number: 9008127
    Abstract: Certain aspects of a method and system for speed negotiation for twisted pair links in fiber channel systems are disclosed. Aspects of a method may include communicating data between fiber channel host devices communicatively coupled via a twisted pair link based on a common speed negotiated between the fiber channel host devices. At least one available speed may be determined for the communication of data between the fiber channel host devices over the twisted pair link. The determined available speeds for each of the fiber channel host devices may be exchanged via at least one fast link pulse signal. The common speed negotiated may be a highest available speed for the communication of data between the fiber channel host devices.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Ali Ghiasi, Kevin Brown
  • Patent number: 9007805
    Abstract: A device for one-time-programmable (OTP) memory may include a capacitor formed by a conductive layer, an oxide layer, and a semiconductor well, and a diode that is formed after programing the device. The device may be programmable by applying a voltage between the conductive layer and the semiconductor well. The applied voltage may be capable of rupturing the oxide layer at one or more points. The conductive layer, the oxide layer, and the semiconductor well may be native CMOS process formations.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Yong Lu, Roy Milton Carlson
  • Patent number: 9009218
    Abstract: A gateway having at least one communications interface and processing circuitry establishes communications with at least one service provider device and at least one serviced client device. The gateway then determines that a serviced client device is to establish an Internet browsing session. Based upon characteristics of the serviced client device, the gateway determines where to instantiate a web browser to service the Internet browsing session. Based upon the determination, in a first operation, instantiates the web browser to service the Internet browsing session at the gateway or client device. In a second operation, the gateway instantiates the web browser to service the Internet browsing session at a service provider server. In other operations, the gateway may determine to instantiate a browser for a first client device at a cloud server and to instantiate a browser for a second client device either locally or at the second client device.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Sherman (Xuemin) Chen, David Erickson, Vladimir Silyaev, Alan Trerise, Marcus C. Kellerman