Patents Assigned to Broadcom
  • Publication number: 20100157865
    Abstract: Embodiments of the present invention enable power-save methods for wireless networks. Embodiments of the present invention are compliant with the IEEE 802.11 protocol. Further, embodiments of the present invention are readily inter-operable with other third party implementations.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Applicant: Broadcom Corporation
    Inventors: Mahesh IYER, Kapil Chhabra, Yury Gonikberg
  • Publication number: 20100157951
    Abstract: A baseband processing module includes an RX interface, a rake receiver combiner module, and may include additional components. The RX interface receives the baseband signals from an RF front end and creates baseband RX signal samples there from. The rake receiver combiner module includes control logic, an input buffer, a rake despreader module, and an output buffer. The rake despreader module is operable to despread the baseband RX signal samples in a time divided fashion to produce channel symbols including pilot channel symbols and physical channel symbols.
    Type: Application
    Filed: March 5, 2010
    Publication date: June 24, 2010
    Applicant: BROADCOM CORPORATION
    Inventors: Mark David Hahm, Huaiyu (Hanks) Zeng, Joseph Boccuzzi, Nelson R. Sollenberger
  • Publication number: 20100159867
    Abstract: An integrated circuit includes an on-chip filter component that forms a programmable bandpass filter with the at least one off-chip bandpass filter component. The programmable bandpass filter is programmable based on a control signal. An RF receiver generates inbound data in response to a received signal from the programmable bandpass filter.
    Type: Application
    Filed: March 8, 2010
    Publication date: June 24, 2010
    Applicant: BROADCOM CORPORATION
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20100155885
    Abstract: A fuse corner pad is part of an integrated circuit that includes a built-in fuse contact and a plurality of auxiliary pads. The fuse contact is a conductive metallic or metalloid structure that is connected to a fuse element. The fuse contact and fuse element are used inside of the fuse corner pad for programmability (e.g., for security) and/or adjustment (e.g., trimming) of analog and/or digital signals. The fuse contact and fuse element are not required to be bonded to an external electrical connection (such as, a pin or ball). The auxiliary pads provide a variety of functional or non-functional applications, such as testing, probing, programming, and/or circuit adjustment.
    Type: Application
    Filed: March 8, 2010
    Publication date: June 24, 2010
    Applicant: Broadcom Corporation
    Inventors: Art Pharn, James Seymour, Jennifer Chiao
  • Publication number: 20100162187
    Abstract: A mixed-height cell library for designing integrated circuits is provided. The mixed-height cell library includes a first plurality of cells having a first track height and a second plurality of cells having a second track height that are configured to be coupled to the first plurality of cells at respective power and ground rail lines. A method for mixed-height cell placement and optimization is also provided. The method comprises abutting cells of different track heights to form a plurality of rows of cells by coupling power and ground rails of the cells at a secondary layer that is different from a primary layer that is used to connect active material and determining whether re-ordering cells within rows allows for further compaction of adjacent rows. The method further comprises re-ordering cells within rows so to allow for further compaction of adjacent rows. The method also includes the steps of splitting rows vertically to minimize the distance between the split rows.
    Type: Application
    Filed: February 12, 2009
    Publication date: June 24, 2010
    Applicant: Broadcom Corporation
    Inventors: Paul Penzes, Koen Lampaert
  • Publication number: 20100158013
    Abstract: Systems and methods for reducing reservation request overhead in a communications network in which devices are connected via a coax network are provided. A method for managing transmission of data over a MoCA network according to the invention may include monitoring data transmission requirements at a node on the network; generating statistics of the data transmission requirements; predicting transmission requirements from the statistics; and reserving future transmission opportunities in view of the predicted transmission requirements.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 24, 2010
    Applicant: Broadcom Corporation
    Inventors: Avraham Kliger, Philippe Klein, Yitshak Ohana
  • Publication number: 20100158022
    Abstract: Systems and methods for reducing the latency and for increasing throughput for MoCA devices that are connected via a coax network are provided. One method according to the invention includes, in a network having a plurality of network modules, each of the plurality of network modules being connected to a coax backbone, communicating over the coax backbone between the plurality of network modules. The method further includes a requesting the use of short burst messages. The method further includes responding to the requesting by constructing a short burst message with a single channel equalization section and reducing the number of bits per hertz in the transmission constellation. The resulting messages can be received with an acceptable error rate while making more efficient use of the MoCA network.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 24, 2010
    Applicant: Broadcom Corporation
    Inventors: Avraham Kliger, Philippe Klein, Yitshak Ohana
  • Publication number: 20100161822
    Abstract: A technique to remotely identify a source of a transaction for transferring content on a home network and to identify a plurality of renderers for rendering the content when transferred. Where multiple pathways are present to transfer the content, remote identification of one or more pathways are also determined to transfer the content. Then, a rendering parameter is determined for each renderer for rendering the content and based on one or more criteria, a renderer is selected for rendering the content, along with the pathway for delivering the content.
    Type: Application
    Filed: December 24, 2008
    Publication date: June 24, 2010
    Applicant: BROADCOM CORPORATION
    Inventors: Stephen Ray Palm, Jeyhan Karaoguz, Xuemin Chen
  • Publication number: 20100162184
    Abstract: A mixed-height cell library for designing integrated circuits is provided. The mixed-height cell library includes a first plurality of cells having a first track height and a second plurality of cells having a second track height that are configured to be coupled to the first plurality of cells at respective power and ground rail lines. A method for mixed-height cell placement and optimization is also provided. The method comprises abutting cells of different track heights to form a plurality of rows of cells by coupling power and ground rails of the cells at a secondary layer that is different from a primary layer that includes active material and determining whether re-ordering cells within rows allows for further compaction of adjacent rows. The method further comprises re-ordering cells within rows so to allow for further compaction of adjacent rows. The method also includes the steps of splitting rows vertically to minimize the distance between the split rows.
    Type: Application
    Filed: February 12, 2009
    Publication date: June 24, 2010
    Applicant: Broadcom Corporation
    Inventor: Paul PENZES
  • Publication number: 20100162320
    Abstract: A laptop that interacts with a television system. At least one module may be adapted to receive a user input identifying a video selection. The at least one module may also be adapted to display video information corresponding to the video selection. The at least one module may further be adapted to transmit a control signal adapted to cause the display of video information corresponding to the video selection on the television system. The laptop may, for example, be adapted to receive television system setting information and provide for user control of various television system settings. Also for example, the laptop may be adapted to receive media guide information, present such information to a user, provide for user selection of a media element, and transmit a control signal adapted to cause delivery of the selected media element from a multimedia source to the television system.
    Type: Application
    Filed: March 5, 2010
    Publication date: June 24, 2010
    Applicant: BROADCOM CORPORATION
    Inventors: James D. Bennett, Jeyhan Karaoguz
  • Publication number: 20100160000
    Abstract: A power status signal is received in an integrated circuit that indicates an inductive power status of an off-chip inductive power module and a battery power status of a battery. A power mode is selected based on the at least one power status signal. A power mode signal is generated based on the selected power mode. A power supply signal is generated and adjusted in response to the power mode signal.
    Type: Application
    Filed: March 8, 2010
    Publication date: June 24, 2010
    Applicant: BROADCOM CORPORATION
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20100159864
    Abstract: An RF communication device provides impedance matching by generating a frequency selection signal. A plurality of programmable impedance matching networks, coupled to an antenna, and formed by a plurality of off-chip impedance matching components, a first on-chip adjustable impedance and a second on-chip adjustable impedance are programmed. The programming includes adjusting a first impedance of the first on-chip adjustable impedance to a first value based on the frequency selection signal, and adjusting a second impedance of the second on-chip adjustable impedance to a second value based on the frequency selection signal.
    Type: Application
    Filed: March 8, 2010
    Publication date: June 24, 2010
    Applicant: BROADCOM CORPORATION
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20100161792
    Abstract: A technique to identify and characterize meta-data associated with an original content that is being transferred from a source to a renderer in a home network, in which the original content is to be rendered by the renderer. Instead of making available for rendering the original content, an alternate content for delivery to the renderer is located, wherein the alternate content is identified by associating the alternate content to the original content via characterization of the meta-data. Then, the alternate content is rendered instead of the original content or rendered in addition to the original content.
    Type: Application
    Filed: December 24, 2008
    Publication date: June 24, 2010
    Applicant: BROADCOM CORPORATION
    Inventors: Stephen Ray Palm, Jeyhan Karaoguz, Xuemin Chen
  • Publication number: 20100158077
    Abstract: A data transceiver module for digital data communications in a portable hand-held data terminal has multiple data spread spectrum modes which include direct sequence and frequency function modulation algorithms. The transceiver module has multiple user or program configurable data rates, modulation, channelization and process gain in order to maximize the performance of radio data transmissions and to maximize interference immunity. Various module housings, which may be PCMCIA type, are able to be mated with a suitably designed data terminal. Media access control protocols and interfaces of multiple nominal operational frequencies are utilized. Wireless access devices in a cell based network each consider a variety of factors when choosing one of a plurality of modes of wireless operation and associated operating parameters. Such selection defines a communication channel to support wireless data, message and communication exchanges.
    Type: Application
    Filed: March 9, 2010
    Publication date: June 24, 2010
    Applicant: BROADCOM CORPORATION
    Inventor: Ronald L. Mahany
  • Patent number: 7742544
    Abstract: A system and method that process data in a circuitry utilizing two clocks. The two clocks may be an offset version of one another. Utilizing two clocks to processes the data may consume fewer clock cycles than using only one clock. The circuitry may comprise registers and a memory, wherein one register may receive a location of information in the memory, which may then be read from the received location. The one register may utilize a first of the two clocks, and the reading from the memory may utilize the second of the two clocks. The circuitry may comprise a portion of a CABAC decoder.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: June 22, 2010
    Assignee: Broadcom Corporation
    Inventor: Reinhard Schumann
  • Patent number: 7741920
    Abstract: An oscillator circuit providing quadrature outputs and enabling instantaneous control over phase, frequency and amplitude of the output waveforms is disclosed. In one embodiment, the oscillator circuit comprises an oscillation loop, at least one capacitor switching circuit coupled to the oscillation loop, and a synchronization signal having an output coupled to the at least one capacitor switching circuit. The synchronization signal may be derived internally from the oscillation loop or externally from an external oscillator.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: June 22, 2010
    Assignee: Broadcom Corporation
    Inventor: Jan R. Westra
  • Patent number: 7743376
    Abstract: In a multiprocessor system, a task control processor may be placed in the path connecting each execution processor to a system bus. Such task control processors may detect the completion of a first task on an associated execution processor and, responsively, generate commands to lead to the initiation of a second task on the same, or another, execution processor. Such task completion detection and task initiation by the task control processors removes, from a central processor or the execution processors, the burden of performing such tasks, thereby improving the efficiency of the entire system.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: June 22, 2010
    Assignee: Broadcom Corporation
    Inventors: Richard J. Selvaggi, Larry A. Pearlstein
  • Patent number: 7742495
    Abstract: A system for transmitting packets over a network of communication channels, the system comprising a set of nodes comprising at least first and second nodes and a network access coordinator operative to coordinate the access of the set of nodes to a synchronous network of channels, wherein, if at least one individual packet has been transmitted from the first node to the second node which did not receive at least one packet, the second node is operative to send a retransmission request to the network access coordinator requesting retransmission of at least one individual packet.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: June 22, 2010
    Assignee: Broadcom Corporation
    Inventors: Avi Kliger, Yitshak Ohana
  • Patent number: 7742752
    Abstract: An integrated circuit radio transceiver and method therefor includes a parallel resistive circuit that provides high resolution to resistive circuitry in a hardware efficient manner for use in a plurality of applications including active filters requiring a precise bandwidth, voltage sources that require a precise voltage output, and current sources that require a precise current output source. The parallel resistive circuit includes at least one base resistive device, whose resistive value may be selectable, in parallel with a plurality of selectable circuit paths, each having a plurality of series coupled resistive values formed in an approximate location of the integrated circuit to reduce process variations. The paths are selectable by logic to provide a desired operational characteristic.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: June 22, 2010
    Assignee: Broadcom Corporation
    Inventor: Seema B. Anand
  • Patent number: 7742466
    Abstract: A switchboard device and methods of operation of same are disclosed. Embodiments of the invention may provide a flexible means of interconnecting wideband and narrowband communications interfaces, where wideband communications interfaces may transfer low-band data and high-band data, and narrowband communication interfaces may transfer low-band data. Low-band data may be combined and sent to a narrowband communications interface or a wideband communications interface. High-band data may be combined and sent to a wideband communications interface. The low-band data may represent audio signals below a predetermined frequency, while the high-band data may represent audio signals above the predetermined frequency. The predetermined frequency may be, for example, approximately 4 kHz. The spectral mask of the low-band data may meet the spectral mask of G.712. Methods of operating embodiments of the present invention are included.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: June 22, 2010
    Assignee: Broadcom Corporation
    Inventors: Wilf LeBlanc, Phil Houghton, Kenneth Cheung