Patents Assigned to Broadcom
  • Patent number: 8669830
    Abstract: Embodiments of the present invention are directed to providing an increased trace width when traversing a void in another layer in a printed circuit board or package design. By increasing the trace width or alternatively increasing the capacitance, the degradation due to the void can be reduced. This approach works for microstrip, stripline as well as other transmission lines that use a reference plane. The void can be the result of an antipad associated with a via, or any other disruption in an otherwise uniform reference plane.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventor: Shengli Lin
  • Patent number: 8670070
    Abstract: A method and system are provided in which a video image may be scaled from a first to a second video format. The scaling may be a non-uniform scaling such as an anamorphic scaling. When panning associated with the scaled video image is detected, one or more end portions of a current frame of the scaled video image may be adjusted, the adjustment being based on one or more frames of the scaled video image that are previous to the current frame. The adjustment may result from combining information from the corresponding end portion of previous frames with the information of the current frame. One or more end portions that are opposite to the ones adjusted may also be adjusted based on one or more frames of the scaled video image that are subsequent to the current frame. The panning detected may be horizontal, vertical, or a combination thereof.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Gaurav Arora, Adil Jagmag
  • Patent number: 8669646
    Abstract: Methods and apparatus for improved electromagnetic interference (EMI) shielding and thermal performance in integrated circuit (IC) packages are described. A die-up or die-down package includes a protective lid, a plurality of ground posts, an IC die, and a substrate. The substrate includes a plurality of ground planes. The IC die is mounted to the substrate. Plurality of ground posts is coupled to plurality of ground planes that surround IC die. Protective lid is coupled to plurality of ground posts. The plurality of ground posts and the protective lid from an enclosure structure that substantially encloses the IC die, and shields EMI from and radiating towards the IC die. The enclosure structure also dissipates heat generated by the IC die during operation.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Mohammad Tabatabai, Abbas Amirichimeh, Lorenzo Longo
  • Patent number: 8670739
    Abstract: A high quality factor frequency translated bandpass filter (FTBPF) with harmonic rejection includes multiple transconductance cells configured to convert a received radio frequency (RF) voltage signal into respective RF current signals. Each of the transconductance cells are weighted such that the FTBPF has an effective transconductance of a first magnitude for frequency components of the received RF voltage signal arising from a first harmonic and an effective transconductance of a second magnitude less than the first magnitude for frequency components of the received RF voltage signal arising from harmonics at integer multiples of the first harmonic. The FTBPF also includes multiple frequency conversion cells coupled to the transconductance cells and configured to mix respective ones of the RF current signals with multiple non-overlapping local oscillator signals.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: David Murphy, Hooman Darabi
  • Patent number: 8670073
    Abstract: A video processing device may compare a pixel or group of pixels of a current video picture to a pixel or group of pixels of a previous video picture. The video processing device may generate a motion vector for the pixel or group of pixels of the current video picture based on the comparison. The video processing device may determine an amount of filtering to be applied to the pixel or group of pixels of the current video picture. The video processing device may adjust the determined amount of filtering to be applied to the pixel or group of pixels based on the generated motion vector and based on a brightness value.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Sheng Zhong, Alexander MacInnis
  • Patent number: 8670710
    Abstract: A communications device is disclosed that includes a united integrated circuit card (UICC) that provides a single wire protocol (SWP) current signal to a near field communications (NFC) device. The SWP current signal is filtered by a filter to remove noise from the SWP current signal. The filter is precharged by a reference voltage when the SWP current signal is in a low state and then filters the SWP current signal when the SWP current signal is in a high state. A switching network provides the filter with the reference voltage to precharge when the SWP is current signal is in the low state and then provides the filter with the SWP current signal to filter when the SWP current signal is in the high state.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: March 11, 2014
    Assignee: Broadcom Innovision Limited
    Inventor: David John Miles
  • Patent number: 8671215
    Abstract: Embodiments of the present invention provide a portable MTP framework. In an embodiment, the portable MTP framework includes an MTP communications stack and a portability layer. The portability layer decouples the MTP communications stack from the underlying platform, storage, and transport components, thereby achieving transport protocol, platform, and storage media independence. The portable MTP framework according to embodiments of the present invention includes platform-specific software components, including, for example, communications device drivers (USB, TCP/IP, etc.), a transport controller, a session handler, storage device drivers (USB drive, SD card, Hard disk, etc.), a storage controller, and a platform interface. The portable MTP framework further includes application-specific software components, including, for example, an MTP router, MTP agents, and MTP managers.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventor: Scott Krig
  • Patent number: 8670356
    Abstract: A system for radio communication is disclosed. The radio system includes a plurality of radio transceivers and a switch. Each transceiver cannot be used alone to meet an operational requirement. The switch configured to switch between the plurality of transceivers to provide the operational requirement.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: William Keese, Michael Summers
  • Patent number: 8670427
    Abstract: Methods and systems that support, for example, canceling or trimming reservations of a shared communication medium are described. In one embodiment, a method that adapts a network time reservation in a communication network may include, for example, one or more of the following: transmitting a preamble field; transmitting a legacy signal field; transmitting at least one paired field, each paired field comprising a signal field and a protocol data unit; and generating an interframe gap.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Matthew J. Fischer, Bruce E. Edwards
  • Patent number: 8670733
    Abstract: A multimode communication device with a shared signal path programmable filter and a method for utilizing a shared signal path programmable filter in a multimode communication device. Various aspects of the present invention comprise a first module adapted to receive a first communication signal (e.g., corresponding to a first communication protocol) and a second module adapted to receive a second communication signal (e.g., corresponding to a second communication protocol). A shared filter, communicatively coupled to the first and second modules, may be adapted to filter the first and/or second communication signals in accordance with a plurality of selectable sets of filter response characteristics (e.g., associated with the first and second communication protocols). A filter control module may be adapted to select a set of filter response characteristics from a plurality of such sets and program the shared filter to filter a communication signal in accordance with the selected set.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Arya Behzad, Ahmadreza Rofougaran
  • Patent number: 8670737
    Abstract: A digital delta sigma modulator includes an input integration stage, a resonating stage, a quantizer, and a plurality of feedback paths operably coupled to the quantizer, the input integration stage, and the resonating stage. The input integration stage is operably coupled to integrate a digital input signal to produce an integrated digital signal, wherein the input integration stage has a pole at substantially zero Hertz. The resonating stage is operably coupled to resonate the integrated digital signal to produce a resonating digital signal, wherein the resonating stage has poles at a frequency above zero Hertz. The quantizer stage is operably coupled to produce a quantized signal from the resonating digital signal.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventor: Henrik T. Jensen
  • Patent number: 8670718
    Abstract: A signal quality metric is determined for each of multiple signal paths. Each of the signal paths corresponds to a respective antenna. The determined signal quality metric is modified for one or more signal paths. A subset of the signal paths is selected for receiving a signal based at least in part on the determined signal quality metrics. The selecting is biased based at least in part on the modified signal quality metrics.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Rajendra Tushar Moorti, Min Chuin Hoo, Jason Alexander Trachewsky
  • Patent number: 8670729
    Abstract: Methods and systems for level detector calibration are disclosed and may comprise calibrating a level detector integrated on-chip to eliminate an associated zero input offset voltage utilizing a replica bias circuit with no input ac voltage at the level detector or the replica bias circuit. The offset voltages of the level detector and the replica bias circuit may be combined to eliminate the associated zero input offset voltage of the level detector. The output signal may be generated by a difference of output signals from the level detector and the replica bias circuit. The level detector and the replica bias circuit may be biased utilizing a similar bias voltage. A plurality of known input voltages may be utilized to generate a corresponding plurality of output voltages of the level detector, generating a corrected transfer function that may be used to accurately set a transmitter power level.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventor: Arya Behzad
  • Patent number: 8670479
    Abstract: The present invention relates to a communication system comprising a transmitter and receiver in communication for transmitting signals through one or more communications channels, wherein at least one of the transmitter and the receiver each comprise a quality measure, which contributes to an overall quality measure for the system and wherein the or each communications channel comprises a plurality of sub-bands between at least two nodes, wherein the plurality of sub-bands each having a specific maximum power spectral densities (PSDs) and wherein one or more sub-bands between the transmitter and the receiver are identified as having a higher maximum PSD than other sub-bands and wherein the PSD of the one or more identified sub-bands is reduced in a predetermined manner to thereby increase the overall quality measure for the system.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Jose Abad Molina, Jonathan Ephraim David Hurwitz
  • Patent number: 8670780
    Abstract: A method and apparatus are provided for facilitating the creation of an intra-system interface between systems operating in an unlicensed spectrum, such as between respective access points of first and second LTE systems that use the same radio resources within an unlicensed spectrum, such as within the TV white spaces. In the context of a method, configuration messages may be caused to be sent to first and second systems regarding creation of an intra-system interface. The method may also receive configuration message responses including address information for first and second access points of the first and second systems, respectively. The method may additionally cause a message to be sent to the first system to trigger the first system to initiate establishment of the intra-system interface with the second system.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Sami-Jukka Hakola, Timo Koskela, Samuli Turtinen
  • Publication number: 20140064267
    Abstract: A network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, a voice synchronizer, an Ethernet MAC, and a USB controller to provide high performance and robust operation.
    Type: Application
    Filed: November 11, 2013
    Publication date: March 6, 2014
    Applicant: Broadcom Corproation
    Inventors: James C. THI, Theodore F. RABENKO, David HARTMAN, Robert M. LUKAS, Kenneth J. UNGER, Ramin BORAZJANI, Shane P. LANSING, Robert J. LEE, Todd L. BROOKS, Kevin L. MILLER
  • Publication number: 20140066076
    Abstract: A multi-radio mobile device comprises a plurality of different radios. When a location update occurs, the multi-radio mobile device, at a specific location, acquires location-based radio information from a remote location server. The multi-radio mobile device selects a radio for use in the specific location based on the acquired location-based radio information comprising available radios in the specific location and radio weights. The radio is selected from the available radios based on the radio weights in the specific location. Transmissions of a desired service are received in the specific location utilizing the selected radio. Location-based radio measurements reports to the remote location server are generated utilizing signal strength measurements for the received signals. Radio quality information of the available radios is calculated by the location server utilizing location-based radio measurement reports from associated users.
    Type: Application
    Filed: August 26, 2013
    Publication date: March 6, 2014
    Applicant: Broadcom Corporation
    Inventors: Charles ABRAHAM, Mark BUER, David GARRETT, Jeyhan KARAOGUZ, David Albert LUNDGREN, David MURRAY
  • Publication number: 20140067381
    Abstract: A system may time-shift the distribution high-definition (HD) audio. The system can obtain an audio stream from a specified audio source, transcode the audio stream into an HD audio stream, and store the HD audio stream in a memory. The system may later forward the stored HD audio stream to a destination device, which can be a communication device linked to the system through a local telephone network or a remote communication device. The system can also store HD audio when a local communication device receives an incoming call request that interrupts a current HD audio distribution process. The system may resume distribution of the HD audio after processing the incoming call request from a point when the distribution was interrupted.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 6, 2014
    Applicant: Broadcom Corporation
    Inventors: Gordon Yong Li, Xuemin Chen
  • Publication number: 20140065970
    Abstract: A method and system that configure communication between devices in a network, where one device may support content protection, and another device may or may not support content protection. The devices may support communication utilizing Bluetooth® technology. A first device may determine whether a second device provides content protection support. If the second device does not support content protection, the first device may utilize a configuration that does not require content protection for communicating data with the second device. If the second device supports content protection, the first device may utilize a configuration that requires content protection for communicating data. If communicating data utilizing content protection fails, the first device may revert to utilizing a configuration that does not require content protection for communicating data with the second device.
    Type: Application
    Filed: November 11, 2013
    Publication date: March 6, 2014
    Applicant: Broadcom Corporation
    Inventor: Jason Hillyard
  • Publication number: 20140062609
    Abstract: Resistor bias circuitry is included in components of an XTAL oscillator system to reduce 1/f noise. An XTAL oscillator includes a resistor bias circuit attached to the XTAL core. A common mode feedback OP amp connected to the XTAL core also includes a resistor bias circuit. An XTAL oscillator chain includes an XTAL core, common mode feedback OP amp, common mode logic buffer (CML BF), and differential to CMOS converter (D2C) each with resistor bias circuitry.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Chang-Hyeon Lee, Lindel Kabalican