Patents Assigned to Broadcom
  • Patent number: 8320864
    Abstract: An active splitter circuit arrangement includes a first amplification module having a number of first input ports and first output ports. The first amplification module is configured to provide first stage amplification to a received input signal and produce from the amplified input signal a number of output signals, each substantially matching the input signal. Also included is a first gain control device having a number of gain input ports respectively coupled to the first output ports and a gain output port coupled to at least one of the first input ports. The first gain control device is configured to control a gain of the first amplification module. Next, a number of second amplification modules corresponding to the number of output signals has a number of second input ports respectively coupled to the first output ports.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: November 27, 2012
    Assignee: Broadcom Corporation
    Inventors: Adel Fanous, Leonard Dauphinee, Lawrence M. Burns, Donald McMullin
  • Patent number: 8319695
    Abstract: An adjustable integrated circuit antenna structure includes an antenna, a ground plane, a plurality of transmission line circuit elements and a coupling circuit. The coupling circuit is operable to couple at least one of the plurality of transmission line circuit elements into a transmission line circuit based on a transmission line characteristic signal. The transmission line circuit has at least one of a bandwidth, an impedance, a quality factor, and a frequency band in accordance with the transmission line circuit characteristic signal.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: November 27, 2012
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 8320848
    Abstract: Methods and systems for diversity processing including using dedicated pilot method for open loop may include combining a plurality of received WCDMA/HSDPA multipath signals for each diversity transmit antenna to at least one processed diversity signal. The received WCDMA/HSDPA multipath signals may originate from diversity transmit antennas at a base station that may be transmitting information via a closed loop or open loop diversity transmission mode. Open loop symbols may be estimated using information from at least one common pilot channel. At least a portion of the at least one processed diversity signal may be despread from the at least one common pilot channel.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: November 27, 2012
    Assignee: Broadcom Corporation
    Inventor: Vinko Erceg
  • Patent number: 8321658
    Abstract: Certain aspects of a method for iSCSI boot may include loading boot BIOS code from a host bus adapter or a network interface controller (NIC) by an iSCSI client device. A connection may be established to an iSCSI target by the iSCSI client device after loading the boot BIOS code. The boot BIOS code may be chained to at least one interrupt handler over iSCSI protocol. An operating system may be remotely booted from the iSCSI target by the iSCSI client device based on chaining the interrupt handler. An Internet protocol (IP) address and/or location of the iSCSI target may be received. At least one iSCSI connection may be initiated to the iSCSI target based on chaining at least one interrupt handler. The iSCSI target may be booted in real mode if at least one master boot record is located in the memory.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: November 27, 2012
    Assignee: Broadcom Corporation
    Inventors: Uri El Zur, Kan Frankie Fan, Murali Rajagopal, Kevin Tran
  • Patent number: 8320248
    Abstract: A method and system for communicating data in an xDSL data retransmission mode is disclosed. A data transmission unit (DTU) is defined. The DTU is sent in an xDSL data stream. A retransmit container is further defined a as a time slot that corresponds to a sent DTU. A copy of the sent DTUs and an index of corresponding retransmit containers is maintained. The DTUs are transmitted the in the xDSL data stream. A determination is made on whether a transmitted DTU was corrupted during transmission. Each corrupted DTU is identified by its corresponding retransmit container. An uncorrupted copy of the DTU is then retransmitted as identified by the corresponding retransmit container.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: November 27, 2012
    Assignee: Broadcom Corporation
    Inventors: Benoit Christiaens, Miguel Peeters, Raphael Cassiers
  • Patent number: 8319578
    Abstract: Aspects of a method and system for configurable differential or single-ended signaling in an integrated circuit. In this regard, a balun comprising one or more loops fabricated in a plurality of metal layers in an integrated circuit may enable conversion between unbalanced and balanced signals. In this regard, balanced signal output by a power amplifier may be converted to a balanced signal for transmission via an antenna. Similarly, an unbalanced signal received by an antenna may be converted to a balanced signal for amplification by an amplifier with a balanced input. The loops may be fabricated in transmission line media such as microstrip and/or stripline. The loops may comprise ferromagnetic material which may be deposited on and/or within the IC. Signals converted via the balun may be in the 61 GHz-61.5 GHz ISM band.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: November 27, 2012
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8320955
    Abstract: An integrated circuit (IC) includes a baseband processing module and a radio frequency (RF) section. The baseband processing module is coupled to convert outbound data into amplitude modulation information and phase modulation information when the IC is in a cellular data mode and to convert an outbound radio frequency identification (RFID) signal into RFID amplitude modulation information when the IC is in an RFID mode. The RF section is coupled to generate an outbound RF data signal in accordance with the amplitude modulation information and the phase modulation information when the IC is in the cellular data mode and to generate an outbound RF RFID signal in accordance with the RFID amplitude information when the IC is in the RFID mode.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 27, 2012
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20120294335
    Abstract: Aspects of a method and system for inter-PCB communication utilizing a spatial multi-link repeater are provided. In this regard, a signal may be transmitted between printed circuit boards via one or more repeaters, wherein the repeaters may frequency shift received signals to generate repeated signals. Each of the repeated signals may be generated by quadrature down-converting said received signal by mixing the received signal with a first LO signal pair, up-converting the down-converted signal by mixing it with a second LO signal pair, and adding or subtracting an in-phase portion and a quadrature-phase portion of the up-converted signal. Each repeated signal may comprise one or more signal components and a phase and/or amplitude of each of the components may be controlled to control a directivity of the repeated signals. The repeater may reside on one of the plurality of printed circuit boards.
    Type: Application
    Filed: August 1, 2012
    Publication date: November 22, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Publication number: 20120294180
    Abstract: A wireless device includes at least one antenna, an RF interface, and processing circuitry coupled to the RF interface and indirectly to the at least one antenna. The wireless device identifies other wireless devices that service based upon transmission characteristics of wireless signals received from other wireless devices and/or relative positions of the other wireless devices with respect to itself. In a first operational period, the wireless device determines transmission characteristics of the other wireless devices. Then, during a second operational period, without further interaction with the other wireless devices, the wireless device determines communication link characteristics based simply upon transmission characteristics of the other wireless devices.
    Type: Application
    Filed: July 31, 2012
    Publication date: November 22, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Mark Gonikberg, Marcellus Forbes
  • Publication number: 20120292708
    Abstract: A semiconductor structure having combined substrate high-K metal gate device and an oxide-polysilicon gate device and a process of fabricating same are provided. The semiconductor structure enables mixed low power/low voltage and high power/high voltage applications to be supported on the same chip.
    Type: Application
    Filed: June 2, 2011
    Publication date: November 22, 2012
    Applicant: Broadcom Corporation
    Inventors: Xiangdong CHEN, Wei Xia
  • Publication number: 20120297023
    Abstract: Methods and systems for a persistent request generated by a wireless device, executed remotely and output to configurable local resources are disclosed and may include generating via a handheld wireless communication device (HWCD) a persistent request for a user that may be communicated to remote devices for execution and storage of results. The stored results may be received from local resources local which may be configured by the remote devices based on user preferences to deliver the stored results to the user. The stored results may be received by the user via the HWCD or another wireless communication device, and the identity of the user may be authenticated prior to receiving the stored results. The remote devices may discover the local resources based on the detection of the user logging into the network. User preferences may be stored in networked devices or may be stored in the HWCD.
    Type: Application
    Filed: July 30, 2012
    Publication date: November 22, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Mark Buer, Arya Behzad, Jeyhan Karaoguz, Alexander MacInnis, Thomas Quigley, John Walley
  • Publication number: 20120294339
    Abstract: A radio frequency identification (RF) system includes an RF reader, an RF tag, and a network connection module. The RF reader includes a reader radio frequency (RF) bus transceiver. The network connection module includes a network connection RF bus transceiver, wherein the reader RF bus transceiver exchanges at least one of inbound RF data and outbound RF data with the network RF bus transceiver via an RF bus.
    Type: Application
    Filed: July 27, 2012
    Publication date: November 22, 2012
    Applicant: BROADCOM CORPORATION
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20120295670
    Abstract: A mobile communication device includes a first wireless transceiver that receives a first inbound RF signal and that transmits a first outbound RF signal based on a first power supply signal. A second wireless transceiver receives a second inbound RF signal and that transmits a second outbound RF signal based on a second power supply signal. A processing module generates at least one power mode signal based on first transmit power control data received via the first inbound RF signal. A power management circuit adjusts a first power consumption parameter of the first power supply signal and a second power consumption parameter of the second power supply signal based on the at least one power mode signal.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 22, 2012
    Applicant: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20120294346
    Abstract: Embodiments provide techniques for high peak to average power ratio (PAPR) event mitigation in high speed data networks, such as cable networks, for example. Embodiments are applicable to multi-carrier and single-carrier modulation systems. Embodiments operate by predicting or detecting the occurrence of a peaking event at the transmitter, and then mitigating potential effects of the peaking event at the transmitter, including application of alternative constellation symbol mappings.
    Type: Application
    Filed: March 30, 2012
    Publication date: November 22, 2012
    Applicant: Broadcom Corporation
    Inventor: Thomas KOLZE
  • Publication number: 20120294396
    Abstract: Direct detection of wireless interferers in a communication device for multiple modulation types. One or more radios implemented within a communication device is/are operative to receive and process wireless communications. A wireless communication signal is processed to extract symbols there from. Various symbols groups are processed in accordance with correlation processing to identify potential interferers (e.g., other communication devices using common portions of frequency spectra). Alternatively, matched filter processing (e.g., using a Barker matched filter in some embodiments) operates on the various symbol groups to identify some potential interferers. Various combinations of correlation processing and matched filter processing may be employed in other instances (e.g., using any of a desired means of comparison, combining, etc.) in considering interferers identified in accordance with each of these two means.
    Type: Application
    Filed: July 23, 2012
    Publication date: November 22, 2012
    Applicant: BROADCOM CORPORATION
    Inventor: Prasanna Desai
  • Publication number: 20120294241
    Abstract: A system for transmitting data directly between a plurality of client network devices in a network having an Access Point (“AP”) device separate from the plurality of client network devices is disclosed. The system may include a first client network device having a first client (“STA”) module and a second client network device of the plurality of client network devices.
    Type: Application
    Filed: July 31, 2012
    Publication date: November 22, 2012
    Applicant: BROADCOM CORPORATION
    Inventor: Stephen R. Palm
  • Publication number: 20120297027
    Abstract: Aspects of a method and system for implementing redundancy for streaming data in audio video bridging networks are provided. Network resources may be reserved over a plurality of network paths. Reserved resources may be utilized for the transmission and/or reception of a corresponding plurality of data streams, wherein one or more of the streams may comprise redundant data. A plurality of data streams may be transmitted and/or received by a plurality of network interface hardware devices. Similarly, a plurality of data streams may be transmitted and/or received by a plurality of ports integrated into a single network interface hardware device. Each of the plurality of data streams may be assigned a unique identifier and the identifier of a first data stream may differ by one bit from an identifier of a data stream comprising data redundant to the first data stream.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 22, 2012
    Applicant: Broadcom Corporation
    Inventors: Amit Oren, Yongbum Kim
  • Publication number: 20120297204
    Abstract: Embodiments of a security architecture for securely storing applications, such as Near Field Communication (NFC) applications, in host memory of a mobile device are provided. The mobile device includes a host application processor, a non-volatile memory, a NFC controller, and an embedded Secure Element (eSE). The eSE is configured to encrypt code and state data associated with a NFC application; store the code and the state data, after having been encrypted, in the non-volatile memory as a binary large object (blob); load the blob from the non-volatile memory in response to an action performed by the host application processor or the NFC controller; decrypt and authenticate the code and the state data; and execute the code to exchange data with a contactless communication device via the NFC controller. The non-volatile memory is external to the eSE.
    Type: Application
    Filed: June 30, 2011
    Publication date: November 22, 2012
    Applicant: Broadcom Corporation
    Inventor: Mark BUER
  • Publication number: 20120294345
    Abstract: Embodiments provide techniques for high peak to average power ratio (PAPR) event mitigation in high speed data networks, such as cable networks, for example. Embodiments are applicable to multi-carrier and single-carrier modulation systems. Embodiments operate by predicting or detecting the occurrence of a peaking event at the transmitter, and then mitigating potential effects of the peaking event at the transmitter, including application of alternative constellation symbol mappings.
    Type: Application
    Filed: March 30, 2012
    Publication date: November 22, 2012
    Applicant: Broadcom Corporation
    Inventor: Thomas KOLZE
  • Publication number: 20120295658
    Abstract: A multimode communication integrated circuit comprising baseband processing circuitry with a shared radio interface. Various aspects of the present invention may comprise a processor module adapted to perform various processing (e.g., baseband processing) in support of multimode communications. A first radio module may be communicatively coupled to the processor module through a common communication interface. A second radio module may also be communicatively coupled to the processor module through the common communication interface. The common communication interface may, for example, be adapted to communicate information over a communication bus that is shared between the processor module and a plurality of radio modules (e.g., the first and second radio modules).
    Type: Application
    Filed: August 2, 2012
    Publication date: November 22, 2012
    Applicant: BROADCOM CORPORATION
    Inventor: Jeyhan Karaoguz