Patents Assigned to Broadcom
  • Publication number: 20120207134
    Abstract: A system and method supporting extended network access notification via a broadband access gateway is disclosed. A representative embodiment of the present invention may comprise a wireless interface and may be capable of exchanging multimedia communication between the wireless interface and a broadband network. The gateway may support multimedia communication via access devices that may seamlessly hand off from a wireless wide area network to a personal area network supported by the wireless interface. The hand off may be coordinated by the gateway and the wireless wide area network via the broadband network. A user of an access device may be notified when such a handoff has been automatically initiated, and a user may configure aspects of such hand offs.
    Type: Application
    Filed: April 24, 2012
    Publication date: August 16, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
  • Publication number: 20120207095
    Abstract: Providing wireless transmission, where in a first transmission mode, transmitting a plurality of frames using a first interframe spacing interval. When in a second transmission mode, transmitting the plurality of frames using a second interframe spacing interval, wherein the second interframe spacing is less than the first interframe spacing.
    Type: Application
    Filed: April 19, 2012
    Publication date: August 16, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Rajendra Tushar Moorti, Matthew J. Fischer, George Kondylis
  • Publication number: 20120207057
    Abstract: The method may include determining a protocol associated with a communication signal for an access point. A compatible processor may be allocated and selected from a pool of available processors and subsequently utilized to process the communication signal. In one aspect of the invention, a processor may be made compatible by updating it with compatible protocol code that may be used for processing the communication signal. The compatible protocol code may be downloaded to the processor from a memory. The processor may associate a particular protocol code with a particular portion of the memory. Accordingly, the protocol code may be retrieved from the memory based on the association. The processor may be a digital signal processor (DSP), which may be adapted to process 802.11a, 802.11b, 802.11g and Bluetooth protocols, for example.
    Type: Application
    Filed: April 23, 2012
    Publication date: August 16, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri, Ed H. Frank
  • Publication number: 20120207239
    Abstract: A method, system and apparatus for communication in an Orthogonal Frequency Division Multiplexing (OFDM) communication system is provided. The method includes allocating a plurality of sequences to a plurality of sectors in the OFDMA communication system. The plurality of sequences are orthogonal to each other. The method further includes communicating one or more OFDM tiles between one or more MSs in one or more sectors of the plurality of sectors and one or more BSs of the one or more sectors. The one or more OFDM tiles include one or more sequences of the plurality of sequences allocated to the one or more sectors.
    Type: Application
    Filed: April 16, 2012
    Publication date: August 16, 2012
    Applicant: Broadcom Corporation
    Inventors: Rajesh Raja MANAKKAL, Leena Zacharias, Louay Jalloul
  • Publication number: 20120205452
    Abstract: An integrated circuit for use in an RFID tag includes an integrated circuit die having a circuit, a radio frequency identification (RFID) interface for providing communication between the circuit and a remote RFID reader via RF signaling between the RFID interface and the remote RFID reader. An antenna section facilitates the RF signaling between the RFID and the remote RFID reader. A substrate is coupled to support the first integrated circuit die and at least a portion of the antenna section.
    Type: Application
    Filed: April 24, 2012
    Publication date: August 16, 2012
    Applicant: BROADCOM CORPORATION
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8245056
    Abstract: Embodiments of a unified communication and control bus architecture for Ethernet and/or PoE systems are provided. Embodiments enable a unified communication and control bus architecture that significantly simplifies communication and control in Ethernet and/or PoE systems. Embodiments enable significant savings both in terms of cost and complexity as the number of communication and control buses is reduced down to one. Embodiments can be used in various Ethernet and/or PoE implementations, including, for example, single PCB-single PoE, single PCB-multiple PoE, chassis-based switch, and stackable-based switch configurations. Further, embodiments can be implemented using standard Ethernet as well as proprietary implementations.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventor: Wael William Diab
  • Patent number: 8244890
    Abstract: Systems and methods that handle transport protocol segments (TPSes) are provided. In one embodiment, a system may include, for example, a receiver that may receive an incoming TPS. The incoming TPS may include, for example, an aligned upper layer protocol (ULP) header and a complete ULP data unit (ULPDU). The receiver may directly place the complete ULPDU into a host memory.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventor: Uri Elzur
  • Patent number: 8242858
    Abstract: Methods and systems for matching networks embedded in an integrated circuit package are disclosed and may include controlling impedance within an integrated circuit via one or more impedance matching networks. The impedance matching networks may be embedded within a multi-layer package bonded to the integrated circuit. The impedance of one or more devices within the integrated circuit may be configured utilizing the impedance matching networks. The multi-layer package may include one or more impedance matching networks. The impedance matching networks may provide impedance matching between devices internal to the integrated circuit and external devices. The impedance matching networks may be embedded within the multi-layer package, and may include transmission lines, inductors, capacitors, transformers and/or surface mount devices. The impedance matching networks may be deposited on top of and/or on bottom of the multi-layer package. The integrated circuit may be flip-chip bonded to the multi-layer package.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8244928
    Abstract: A method relating to wireless human interface device (HID) coordination is disclosed. A first human interface device (HID) is wirelessly coupled to two or more computing devices, wherein the first HID is configured to toggle between interactions with each of the two or more computing devices. An inquiry or paging message is broadcast to one or more HIDs, including a second HID wirelessly coupled to the two or more computing devices, wherein the second HID is configured to receive and provide a response to the inquiry or paging message. The second HID is located based on the response to the inquiry or paging message. A wireless link is established between the first HID and the second HID based on the identifying, wherein the first HID is configured to coordinate, via the wireless link, interactions with the two or more computing devices by both the first HID and the second HID based on the toggle.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventor: Asif Grushkevich
  • Patent number: 8245292
    Abstract: Methods and systems are provided for non-cryptographic capabilities of a token such as a smartcard to be used as an additional authentication factor when multi-factor authentication is required. Smartcards are configured to generate a transaction code each time a transaction is attempted by the smartcard. The transaction code is dynamic, changing with each transaction, and therefore is used as a one-time password. When a user attempts to access a service or application requiring at least two authentication factors, a secure processor is used to read transaction code from the smartcard. The secure processor establishes a secure communication with the remote computer hosting the service or application. The transaction code can then be encrypted prior to transmission over the public Internet, providing an additional layer of security.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventor: Mark Buer
  • Patent number: 8244175
    Abstract: A repeater device may be utilized to enable forwarding extreme high frequency (EHF) communication between EHF-enabled wireless devices. The repeater device may utilize spatial isolation to prevent and/or reduce interference between received and transmitted EHF RF signals, wherein reception and/or transmission of EHF RF signals in the repeater device may be performed via narrow beams that may enable minimal interference by transmit EHF RF signals to reception of EHF RF. The repeater device may utilize phased arrays to enable performing beamforming, and signal processing operations, including shift and/or amplitude adjustment, may be performed on signals received and/or transmitted via antenna elements in the phased arrays to enable beamforming during reception and transmission of EHF RF signals. Signal processing operations performed in the repeater device may be modifiable to enable continued spatial isolation between receive and transmit EHF RF signal in the repeater device.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8244906
    Abstract: Certain aspects of a method and system for transparent TCP offload with a user space library are disclosed. Aspects of a method may include collecting TCP segments in a network interface card (NIC) without transferring state information to a host system. When an event occurs that terminates the collection of TCP segments, a single aggregated TCP segment based on the collected TCP segments may be generated. The aggregated TCP segment may be posted directly to a user space library, bypassing kernel processing of the aggregated TCP segment.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: August 14, 2012
    Assignee: Broadcom Israel Research, Ltd
    Inventors: Eliezer Aloni, Uri El Zur, Rafi Shalom, Caitlin Bestler
  • Patent number: 8242957
    Abstract: Methods and systems for dynamic tracking utilizing leaky wave antennas (LWAs) are disclosed and may include configuring a transmitting angle of a plurality of leaky wave antennas in a wireless device at a desired starting angle. A RF signal strength may be measured at the sweeping transmitting angles for each of the leaky wave antennas, and a location of one or more objects may be tracked from the measured RF signal strength and a corresponding angle of reception of the LWAs. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. The LWAs may be situated along a plurality of axes in the wireless device. The LWAs may comprise microstrip or coplanar waveguides, where a cavity height of the LWAs is dependent on spacing between conductive lines in the waveguides. The LWAs may be integrated in integrated circuits, integrated circuit packages, and/or printed circuit boards.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8243726
    Abstract: 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.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Wael William Diab, Alireza Abaye
  • Patent number: 8243590
    Abstract: Certain aspects of the invention for seamless port bypass controller operations for storage systems, for example, and may comprise a first port of a port bypass controller that receives an input signal and at least one of a plurality of selectors that selects at least a second port coupled in a chain to the first port. At least one of the selectors may switch at least a portion of the received input signal from the first port to at least the second port without initializing or reconfiguring the second port. A repeater may repeat at least a portion of the received input signal to the second port without initializing or reconfiguring the second port. A retimer may generate a retimed signal corresponding to at least a portion of the received input signal to the second port without initializing or reconfiguring the second port.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Chung-Jue Chen, Ali Ghiasi, Jay Proano, Rajesh Satapathy, Steve Thomas
  • Patent number: 8243510
    Abstract: According to one exemplary embodiment, a memory cell in a semiconductor chip includes a non-volatile memory transistor, a control gate, and a floating gate. The control gate is capacitively coupled to the floating gate of the non-volatile memory transistor by a metal capacitor. The metal capacitor can be formed in one or more metal levels and in one embodiment is in a shape of a comb with multiple fingers. In one embodiment, the non-volatile memory transistor is an NMOS non-volatile memory transistor.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Andrew Chen, Bibhudatta Sahoo, Ali Anvar
  • Patent number: 8244193
    Abstract: A transmitter includes a dual mode modulator and an amplifier coupled to the dual mode modulator. The dual mode modulator implements a linear modulation scheme during a first mode of the modulator to produce a variable envelope modulated signal. The dual mode modulator implements a non-linear modulation scheme during a second mode of the modulator to produce a constant envelope modulated signal. The amplifier is biased as a linear amplifier during the first mode of the modulator and is biased as a non-linear amplifier during the second mode of the modulator. A feed-forward connection between the dual mode modulator and the amplifier is used to indicate a change in modulation mode and to adjust the bias of the amplifier. A power of the constant envelope modulated signal is increased such that an operating point of the amplifier remains substantially constant during the first and second modes of the modulator.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventor: Meng-An Pan
  • Patent number: 8244189
    Abstract: A wireless device comprising a plurality of chips may be operable to communicate wireless signals via a mesh network comprising a plurality of integrated directional antennas on the plurality of chips. Wireless signals may be communicated between the plurality of the chips and/or with devices external to the wireless device via the mesh network. Beam-formed wireless signals may be communicated via the plurality of integrated directional antennas. The plurality of chips may be integrated on a single package or on a plurality of packages, which may comprise one or more circuit boards. Wireless signals may be communicated with devices external to the single package via the mesh network. The directional antennas may comprise patch antennas and/or dipole antennas.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8242803
    Abstract: A method and apparatus is disclosed that is capable of transmitting video signals and/or audio signals using the HDMI interface standard or the DisplayPort interface standard. A dual mode transmitter is disclosed that is configurable to transmit to a first sink device, configured in accordance with a HDMI display interface, in a HDMI mode of operation and/or a second sink device, configured in accordance with a DisplayPort display interface, in a DisplayPort mode of operation. The dual mode transmitter is configured to receive a biasing current from the first sink device in the HDMI mode of operation or to internally provide the biasing current in DisplayPort mode of operation by selecting impedances from selectable impedance networks. The dual mode transmitter is configured to transmit the video signals and/or audio signals by biasing one or more transistors using the biasing current.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Hai Jie Wu, Yow Ching Cheng
  • Patent number: 8243701
    Abstract: A Wireless Local Area Network (WLAN) system in which wireless terminals each operate upon battery power. One of the wireless terminals acts as a Master to coordinate the transmission and receptions of the Slaves so as to reduce the power consumed by all of the devices. The Slaves operate according to a power up and power down sequence to conserve battery power. Further, the terminals may alternate between being Slaves and being the Master to equalize battery consumption of the wireless terminals.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: August 14, 2012
    Assignee: Broadcom Corporation
    Inventors: Stephen Palm, Edward H. Frank, Bruce E. Edwards, Jason A. Trachewsky