Patents Assigned to Broadcom
  • Patent number: 8837362
    Abstract: A method and apparatus are provided for reliably paging a mobile terminal in the idle mode, even in an instance in which the mobile terminal is subjected to interference from a CSG cell. In this regard, a method is provided that includes causing an indication of an inter-cell interference coordination (ICIC) paging period to be provided to the mobile terminal. The indication of the ICIC paging period includes an ICIC paging period TICIC and a number NABS of consecutive almost blank subframes (ABS) subframes in which a paging message is to be expected. The method also determines, for a respective ICIC paging period, the NABS nearest ABS subframes of the CSG cell relative to a paging occasion (PO) subframe of the mobile terminal. A paging message is also provided to the mobile terminal in one of the NABS nearest ABS subframes of the CSG cell.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Ville Vartiainen, Tero Henttonen, Samuli Turtinen, Timo Koskela, Sami-Jukka Hakola
  • Patent number: 8837422
    Abstract: A method for distributed carrier aggregation on unlicensed bands is described. The method includes tuning an antenna of a user equipment to a first carrier. The method includes transmitting, from an access point on a first carrier, information regarding a second carrier. The method also includes receiving, on the first carrier via the antenna, the information regarding the second carrier. The first carrier and the second carrier are in an unlicensed band. The method includes retuning the antenna to the second carrier and communicating data on the second carrier via the antenna. A maximum transmission power for the second carrier is based at least in part on a bandwidth of the second carrier. Apparatus and computer readable media are also described.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Tao Chen, Gilles Charbit
  • Patent number: 8837190
    Abstract: According to one embodiment, a system for retaining M bits of state data of an integrated circuit during power down includes M serially coupled scan flip flops divided into M/N groups, where the M scan flip flops are able to save/restore the M bits of state data. Each group contains a merged scan flip flop coupled to a series of scan flip flops. The merged scan flip flop in each of the groups is coupled to a respective read port of a memory unit, and a final scan flip flop in each of the groups is coupled to a respective write port of the memory unit. The system enables the memory unit to save the M bits of state data in N clock cycles. Each merged scan flip flop has a read select input that enables restoring of the state data into the M scan flip flops in N clock cycles.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Paul Penzes
  • Patent number: 8837585
    Abstract: Presented herein are Tertiary Content Addressable Memory based motion estimator(s). In one embodiment, there is presented a method for encoding a picture. The method comprises addressing a first memory with one or more data words for a first prediction block, and addressing a second memory with one or more data words for a second prediction block while addressing the first memory.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Gaurav Aggarwal, Rajendra Khare
  • Patent number: 8838752
    Abstract: A process of controlling a flow of data in a wireless network providing wireless access to the wireless network by wireless devices is disclosed. Data is received from a wireless device by a network device, through one access point of a plurality of access points in communication with the network device, indicating a client identifier for the wireless device. The client identifier is forwarded to an authentication server and the network device mediated authentication of the wireless device with the authentication server. Thereafter, data packets received from portions of the wireless network and from the plurality of access points are evaluated and the received data packets are passed to portions of the wireless network and to the plurality of access points, based on the evaluation of the received data packets. In addition, the network device periodically polls for a status of the wireless device from the access point.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Kar-Wing Edward Lor, Richard Martin, Alarabi Omar Hassen
  • Patent number: 8839008
    Abstract: Provided is a method for detecting a PoE (power over Ethernet) device comprising applying a positive polarity of a first current source to one of a first and second data pairs of an Ethernet connection to a powered device (PD) and a negative polarity of the first current source to the other of the first and second data pairs, applying a positive polarity of a second current source to a first spare pair of the Ethernet connection and a negative polarity of the first current source to a second spare pair of the Ethernet connection, simultaneously measuring a first voltage across the first current source and a second voltage across the second current source, discontinuing application of the first current source and measuring a third voltage across the second current source, and determining a configuration of the PD using the measured first, second and third voltages.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Sanjaya Maniktala
  • Patent number: 8836553
    Abstract: Methods and apparatuses are described for a DSP receiver with an analog-to-digital converter (ADC) having high speed, low BER performance with low power and area requirements. Speed is increased for multi-path ADC configurations by resolving a conventional bottleneck. ADC performance is improved by integrating calibration and error detection and correction, such as distributed offset calibration and redundant comparators. Power and area requirements are dramatically reduced by using low BER rectification to nearly halve the number of comparators in a conventional high speed, low BER flash ADC.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Bo Zhang, Ali Nazemi, Mahmoud Reza Ahmadi, Afshin Momtaz, Heng Zhang, Hassan Maarefi
  • Patent number: 8838028
    Abstract: An RFIC includes an RF section, a memory interface, a display interface, an audio codec, a bus matrix, and a processing unit. The RF section converts a first inbound RF signal into a first inbound symbol stream and converts a second inbound RF signal into a second inbound symbol stream. The memory interface is operably coupled to retrieve a video file from memory and the display interface is operable to provide video data to a display. The audio codec converts an output digital signal into an output voice signal. The processing unit converts the first inbound symbol stream into streaming video data; converts the second inbound symbol stream into the output digital signal; and facilitates providing, via the bus matrix, at least one of: the video file to the display interface as the video data; the streaming video data to the display interface as the video data; and the digital output signal to the audio codec.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Hooman Darabi, Vafa James Rakshani, Claude G. Hayek
  • Patent number: 8837460
    Abstract: Aspects of a method and system for bridging and routing offload in a multiport wireless system are presented. Various aspects of the system may include a wireless network interface subsystem that enables transcoding of at least a portion of a data packet received by the wireless network interface subsystem. The wireless network interface subsystem may enable transfer of the transcoded portion of the data packet from the wireless network interface subsystem to a wired network interface subsystem that is communicatively coupled thereto. The transcoded portion of the data packet may be compliant with a format utilized by the wired network interface subsystem.
    Type: Grant
    Filed: September 15, 2012
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Matthew Fischer, Raymond Hayes
  • Patent number: 8837564
    Abstract: A millimeter wave modem assembly, which includes an input/output interface module configured to receive and transmit standardized data streams in accordance with dedicated interface specifications, and includes an encoder module configured to encode the standardized data streams to form coded digital bits, and also includes a physical layer module configured to convert the coded digital bits into digital symbols and into digital samples, and to convert the digital samples into the digital symbols and then into the coded digital bits; and further includes a data conversion module configured to perform a high rate conversion of the digital samples to form an analog signal suitable for wireless transmission over a link in accordance with the dedicated interface specifications.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Eran Ridel, Ran Soffer
  • Patent number: 8838166
    Abstract: Aspects of a method and system for processing signals in a high performance receive chain may include amplifying a plurality of radio frequency signals in one or more respective one or ones of a plurality of amplifier chains in a multistandard radio frequency front-end, which may comprise one or more shared processing stages. The plurality of radio frequency signals may be compliant with a plurality of radio frequency communication standards and may be received concurrently. The one or more shared processing stages may be shared between two or more of the plurality of amplifier chains. Each of the two or more of the plurality of amplifier chains may be operable to amplify signals compliant with different radio frequency communication standards.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Arya Behzad, Adedayo Ojo, Yuyu Chang, Hung-Ming Chien, Kishore Rama Rao, Guruprasad Seetharam
  • Patent number: 8837599
    Abstract: Presented herein are system(s) and method(s) for clean channel changes. In one embodiment, there is presented a method for changing a channel. The method comprises receiving a portion of a first video bitstream associated with a first channel; receiving a command to switch display from the first channel to a second channel after receiving the portion of the first video; and displaying the portion of the first video bitstream associated with the first channel after receiving the command.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Gaurav Aggarwal, Vijayanand Aralaguppe
  • Patent number: 8838101
    Abstract: A system and method for performing multi-communication pathway addressing in a mobile communication device. Various aspects of the present invention may comprise at least one communication interface module adapted to communicate with at least a first plurality of communication networks. At least one module may be adapted to utilize the at least one communication interface module to conduct a particular type of communication over any of the first plurality of communication networks. A user interface module may be adapted to receive user input indicative of a desired communication. In response to such a received user input, the at least one module may be adapted to identify, from the received user input, at least one communication network of the first plurality of communication networks and utilize the at least one communication interface module to conduct the desired communication (e.g., of the particular type of communication) over the identified at least one communication network.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Jeyhan Karaoguz
  • Patent number: 8839328
    Abstract: In an IP multimedia gateway, locations corresponding to communicatively coupled communication devices are determined and transmitted to a service provider device (SPD) that provides services to the communication devices. Communication devices receive location based service profiles from the (SPD) based on the determined locations. Services content from the (SPD) is communicated with the communication devices and/or with the (SPD), based on the profiles. The determined locations are received from communication devices which may be local or remote. A device location map is generated to be displayed by communication devices. The gateway may be integrated in an STB/DTV that displays the determined locations. Content is communicated to communication devices based on their location. The (SPD) may provide content and/or control information for communication device services.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Gordon Yong Li, Xuemin Chen
  • Patent number: 8836374
    Abstract: According to one embodiment, a high performance buffer for use in a communications system includes first and second differential blocks. Each of the first and second differential blocks comprise one or more driving transistors for generating a driving current for a load of the high performance buffer, and a feedback path for adjusting the operation of the one or more driving transistors. The feedback path includes a feedback transistor for receiving a common mode bias voltage, wherein the common mode bias voltage depends at least in part on a threshold voltage of the feedback transistor. The feedback path includes a programmable resistor and capacitor to reduce out of band loop gain and the noise. The high performance buffer is configured to achieve a high linearity, low output impedance, and low noise, and is suitable for use as a pre-mixer buffer in a wireless communications system.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Amir Hadji-Abdolhamid, Ahmad Mirzaei, Hooman Darabi
  • Patent number: 8837606
    Abstract: A Power Line Communications (PLC) device includes a processing module, memory, and a communication interface. The PLC device determines, at a PLC Physical Layer (PHY), a noise cycle of a power main coupled to the PLC interface. Based upon the noise cycle, the PLC device determines a higher noise period and a lower noise period of the noise cycle and then allocates, by a PLC Media Access Control (MAC) layer, first communication operations in the higher noise period and differing second communication operations in the lower noise period. Such operations may include adjusting framing of PLC MAC layer frames to have a first frame construct during the higher noise period and second frame construct during the lower noise period. Other differences in operations may be coding operations, either block or channel codes, QoS operations, restricting communications, redundant Acknowledgement (ACK) operations, or differing PLC standardized operations during the differing periods.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Xavier Reves Balleste, Gerard Reves Vilaplana, Jonathan Ephraim David Hurwitz
  • Patent number: 8838060
    Abstract: A communication device that may comprise one of a cell phone or a game controller system that further includes a game console and a pair of game controllers that communicate via a human body path. Generally, the communication device communicates by way of a touch pad array through a human body path using capacitive coupling in one embodiment of the invention. Encryption parameters and user contact information may be exchanged through the human body path. For example, a pre-shared key may be transmitted through the human body path to support subsequent encrypted wireless communications. The touch pad array may be a part of a display of the communication device but is not required to be so.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: John Walley, Jeyhan Karaoguz
  • Patent number: 8838036
    Abstract: A transceiver circuit includes a transmitter to send communication signals and a receiver to receive communication signals sent by other transmitters. The transceiver circuit also includes a switch to connect the transmitter and the receiver to at least one antenna. The switch controls at least two directions of polarization of the at least one antenna.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Seunghwan Yoon, Bagher Afshar, Jesus Alfonso Castaneda, Brima Ibrahim, Michael Boers
  • Patent number: 8839307
    Abstract: A system and method in a local television system for responding to user-selection of an object in a television program, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri
  • Patent number: 8837567
    Abstract: Systems and methods are provided, for estimating a channel based on previous channel estimations from the same source. Embodiments disclosed herein enable removal of the timing variation (from burst to burst) so that the channel can be more accurately estimated. Embodiments provide several systems and methods for averaging channel estimation information from each of the bursts. The systems and methods disclosed herein advantageously improve channel estimation accuracy and reduce modulation error.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Guangcai Zhou