Patents Assigned to Broadcom
  • EMERGENCY CALL HANDLING IN CELLULAR NETWORKS AFTER FAILED AUTHENTICATION
    Publication number: 20160007176
    Abstract: A mobile device may place an emergency call via a wireless cellular network. The mobile device receives an initiation of the emergency call and determines whether a first base station to which it is attempting to connect is authenticated. Authentication of the first base station is determined based on a state of an authentication timer of the mobile device. If authentication of the first base station fails, the mobile device establishes a connection to a second base station and places the emergency call via the connection with the second base station.
    Type: Application
    Filed: August 8, 2014
    Publication date: January 7, 2016
    Applicant: BROADCOM CORPORATION
    Inventors: Matti Tapani MOISANEN, Markku Kalevi Vuontisjarvi, Sridhar Prakasam
  • Method and system for sharing resources for setup boxes (STB) in a home network
    Patent number: 9232284
    Abstract: A STB resource sharing (RS) group of a home network comprises a plurality of STBs. In the STB RS group, a STB communicates with one or more other STBs to mutually share available device resources comprising hardware and software resources, and/or capabilities. The STB functions as an elected master (EM) or a STB RS client in the STB RS group. As an EM, the STB receives advertisements from other STBs to determine available resources. The determined available resources are announced to other STBs in the STB RS group. The STB manages the use of the determined available resources according to resource sharing requests received from other STBs. As a STB RS client, the STB advertises inherent resources to an EM of the STB RS group. The STB receives announcements from the EM for available resources in the STB RS group. The STB shares its available resources, accordingly.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: January 5, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Predrag Kostic, Nicos Herodotou, Rajesh Mamidwar, Sanjeev Sood
  • Resonant clock amplifier with a digitally tunable delay
    Patent number: 9231571
    Abstract: A programmable frequency receiver includes a slicer for receiving data at a first frequency, a de-multiplexer for de-multiplexing the data at a second frequency, a programmable clock generator for generating a clock at the first frequency, and first and second resonant clock amplifiers for amplifying clock signals at the first and second frequencies. The resonant clock amplifiers include an inductor having a low Q value, allowing them to amplify clock signals over the programmable frequency range of the receiver. The second resonant clock amplifier includes digitally tunable delay elements to delay and center the amplified clock signal of the second frequency in the data window at the interface between the slicer and the de-multiplexer. The delay elements can be capacitors. A calibration circuit adjusts capacitive elements within a master clock generator to generate a master clock at the first frequency.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Bharath Raghavan, Jun Cao, Afshin Momtaz
  • System and method for allocating spare system resources
    Patent number: 9229781
    Abstract: A system and method for allocating and/or utilizing spare computing system (e.g., personal computing system) resources. Various aspects of the present invention may, for example and without limitation, provide a system and/or method that communicates incentive information with computing systems, and/or representatives thereof, regarding the allocation of computing resources for utilization by other computing systems and/or incentives that may be associated with such utilization. Various aspects of the present invention may, for example, allocate one or more resources of a computing system for utilization by another computing system based, at least in part, on such communicated incentive information.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Arya Behzad, Mark Buer, Alexander G. MacInnis, Thomas Quigley, John Walley
  • Optimal envelope tracking reference waveform generation
    Patent number: 9231534
    Abstract: A method and apparatus is provided to improve upon the efficiency of a power amplifier. Suitable hardware/software in the form of circuitry, logic gates, and/or code functions to construct an envelope tracking waveform of an input communications signal and modulate the input supply voltage based on power amplifier circuitry operational parameters such as slew rates.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Dmitriy Rozenblit, Vipin Kumar Aggarwal
  • Secure communications via NFC device
    Patent number: 9231662
    Abstract: A system, method, and apparatus for negotiating a communication link between first and second near field communication (NFC) devices is disclosed. A third NFC device is placed in close proximity with a first host device operatively containing the first NFC device to determine communication information including at least one of a communication mechanism and a data transfer protocol usable by the first host device. The communication information usable by the first host device is stored in a portable device operatively containing the third NFC device. The third NFC device is momentarily placed in close proximity with the second NFC device. The stored communication information of the first host device is transferred from the portable device to a second host device operatively containing the second NFC device.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Mohamed Awad, Brima Ibrahim, John Waters
  • Unified video delivery system for supporting IP video streaming service
    Patent number: 9232268
    Abstract: A home gateway may be used to handle at least a portion of processing of content obtained for consumption by client devices serviced via the home gateway. The home gateway may receive a single copy of content having a first format, and may convert the received content to one or more other formats suitable for presentation by at least one of the client devices based on knowledge of the client devices. The home gateway may maintain secure and/or protected access of the content handled via the home gateway. During protected access the home gateway may partition the content into a plurality of encrypted segments that are forwarded separately to the client devices. The client devices may utilize a corresponding plurality of encryption keys for decrypting the encrypted segments. The encryption keys may be obtained from an external key server. The home gateway may also generate the encryption keys.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Xuemin Chen, Stephane Rodgers, Rajesh Mamidwar
  • Method and apparatus for facilitating device-to-device communication
    Patent number: 9232550
    Abstract: A method is provided for facilitating device-to-device communication. The method may include causing a message to be sent to a first device to trigger the first device to transmit a reference signal. The method may further include causing a request for a channel quality indication to be sent to a second device. The request may indicate that the channel quality indication is to be based on measurement of the reference signal. The method may additionally include receiving the channel quality indication in response to the request. The channel quality indication being indicative of a link quality between the first device and the second device. The method made also include determining based on the received channel quality indication whether to cause establishment of a device-to-device link between the first device. A corresponding apparatus and computer program product are also provided.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 5, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Chunyan Gao, Haiming Wang, Gilles Charbit
  • System and method for power control in a physical layer device
    Patent number: 9231655
    Abstract: A system and method for power control in a physical layer device. Energy savings during an active state can be produced through the monitoring of a received signal level by a receiver in a physical layer device. In one embodiment, based on an indication of the received signal level or other communication characteristic of the transmission medium, a control module can adjust the signal level or amplitude and/or adjust the voltage supply.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: January 5, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Derek Tam, Xin Wang, Hui Pan, Joseph Aziz
  • Mobile handoff through multi-network simulcasting
    Patent number: 9232567
    Abstract: A method and apparatus supporting handoff using simulcasting of multimedia information via a gateway are disclosed. A gateway supporting both a personal area network and a broadband network may receive multimedia information transmitted to an access device by a wide area network. The gateway may send the received multimedia information to the associated access device, and may communicate with the wide area network.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Sashadri
  • Selecting uplink sounding sub-carriers
    Patent number: 9232510
    Abstract: A method and apparatus of selecting a number of uplink sounding sub-carriers are disclosed. One method includes estimating an uplink channel of between a base station and a subscriber. A time domain channel response is determined from the estimated uplink channel. A sub-carrier distribution of uplink sounding sub-carriers is selected based on characteristics of the time domain channel response, wherein the distribution defines a spacing of pilot sub-carriers within the uplink sounding symbol. The subscriber transmits uplink sounding symbols having the selected sub-carrier distribution.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Sriram Mudulodu, Djordje Tujkovic, Arogyaswami Paulraj
  • Encoding methods and systems for binary product codes
    Patent number: 9231622
    Abstract: A data encoding circuit and a corresponding method is provided. The data encoding circuit includes a first data formatter in communication with an encoder section. The first data formatter is configured to receive blocks of source data in serial and output parallel two dimensional source data. The encoder receives the parallel two dimensional source data and that computes a plurality of serial row parity bits and a plurality of parallel column parity bits of an error correcting code from the parallel two dimensional source data. A second data formatter communicates with the encoder section and receives the parallel column parity bits and outputs serial column parity bits.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventor: Zhongfeng Wang
  • Systems and methods for handling packets from a trusted network
    Patent number: 9231912
    Abstract: Systems and methods for handling packets from a trusted network are provided. In some aspects, a system includes a communication module configured to receive a packet at a gateway from a server in a trusted network. The gateway is between the trusted network and a network external to the trusted network. The system also includes a verification module configured to determine whether the received packet is valid. The communication module is configured to route the received packet to a client in the external network if the received packet is determined to be valid. The communication module is configured to apply a corrective action to the received packet if the received packet is determined to be invalid.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventor: Murari Bhattacharyya
  • Unified binarization for CABAC/CAVLC entropy coding
    Patent number: 9231616
    Abstract: Unified binarization for CABAC/CAVLC entropy coding. Scalable entropy coding is implemented in accordance with any desired degree of complexity (e.g., entropy encoding and/or decoding). For example, appropriately implemented context-adaptive variable-length coding (CAVLC) and context-adaptive binary arithmetic coding (CABAC) allow for selective entropy coding in accordance with a number of different degrees of complexity. A given device may operate in accordance with a first level complexity a first time, a second level complexity of the second time, and so on. Appropriate coordination and signaling between an encoder/transmitter device and a decoder/receiver device allows for appropriate coordination along a desired degree of complexity.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: January 5, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Brian Heng, Ba-Zhong Shen
  • Method and system for automated device testing
    Patent number: 9230682
    Abstract: Embodiments described herein provide enhanced testing of devices. For example, in an embodiment, an interposer for testing devices is provided. The interposer includes a substrate, a first plurality of connection elements located on a surface of the substrate, and a memory device electrically coupled to the first plurality of connection elements through the substrate. The first plurality of connection elements are configured to mate with a second plurality of connection elements located on a device under test. The memory device is configured to store information received from the device under test and to output stored information to the device under test.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Baruyr Mirican, Tyler Tolman, Jeffrey Brueggeman
  • Method and system for utilizing and modifying user preference information to create context data tags in a wireless system
    Patent number: 9232042
    Abstract: A Wireless mobile communication (WMC) device may be utilized to generate and/or maintain multimedia data files. Context data tags may be utilized to tag the generated multimedia data files to enable convenient identification of multimedia data files. Context data tags may comprise time/date stamps, subject, and/or location attribute. User preference information that is unique to the WMC device and/or a specific device user may be utilized to create context data tags for multimedia data files. The user preference information may be modified and/or updated. Modifications and/or updates of user preference information may be based on post-processing operations, biometric information, and/or self-learning techniques that may comprise operations performed on the multimedia data files. Post-processing operations may be performed on multimedia data files in the WMC device and/or a remote device.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: John Walley, Thomas Quigley, Alexander G. MacInnis, Arya Behzad, Jeyhan Karaoguz, Mark Buer
  • Multi-port channelized optical line terminal
    Patent number: 9231722
    Abstract: A method and system for channelizing a Passive Optical Network (PON) Media Access Controller (MAC) includes increasing a clock rate of each of one or more PON MAC(s) to create communication lanes each comprising a plurality of N channels. The PONs are channelized according to NX, where N equals a number of ports supported by the MAC and X equals a designated operating PON MAC clocking rate allowing for leveraging of existing Passive Optical Network (PON) infrastructures to provide a more power efficient and physically smaller MAC layer for OLTs.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: January 5, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Ryan Hirth, Sourigno Outsama, Ngo Ho, Simon Ray Lee
  • Wireless transceivers with filter arrangement for WiFi and LTE coexistence
    Patent number: 9232564
    Abstract: Embodiments provide WiFi and LTE tailored transceiver radio frequency (RF) filtering techniques and configurations to enable coexistence between WiFi and LTE transceivers operating in close proximity. In particular, embodiments provide filtering techniques to reject emissions from LTE into WiFi, and vice versa. The filtering techniques eliminate the need for additional isolation between LTE and WiFi antennas (approximately 50 dB), which is beyond what is achievable in practice. Embodiments can be tailored according to different use cases of the WiFi and LTE transceivers (e.g., fixed CPE, portable router, smart phone with tethering).
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Kamesh Medapalli, Erik Stauffer, Bertrand Hochwald, William Fujimoto, Joseph Saada, Richard Compton
  • Interposer package structure for wireless communication element, thermal enhancement, and EMI shielding
    Patent number: 9230875
    Abstract: Embodiments of provide an integrated circuit (IC) device. The IC device can include a substrate having first and second opposing surfaces, an IC die electrically coupled to the first surface of the substrate, a plurality of contact members coupled to the first surface of the substrate, and an interposer. The interposer can include a plurality of contact elements located on a first surface thereof, each conductive element being coupled to a respective one of the plurality of contact members, and an antenna formed using a conductive layer of the interposer, the antenna being electrically coupled to the IC die through at least one of the plurality of contact elements and at least one of the plurality of contact members.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: January 5, 2016
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan
  • Apparatus and method for a communication system
    Patent number: 9232514
    Abstract: Apparatus and method for communication are provided. The solution includes controlling the communication of a transceiver on shared data channels using a data channel slot including a sensing period and a data period and controlling a transceiver to communicate on common and dedicated control channels on a shared spectrum using control channel slots, each control channel slot including a downlink part and an uplink part, wherein the uplink part occurs at the same time as the sensing period of a data channel slot.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: January 5, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Timo K. Koskela, Sami Jukka Hakola, Samuli Turtinen, Anna Pantelidou