Patents Assigned to Broadcom
  • Patent number: 9414421
    Abstract: Method, operation of a method, and a result of execution of computer program instructions embodied on a non-transitory computer readable memory in a mobility management entity which determines whether a source and destination address of certain Internet protocol data flow are within a specific network in an evolved packet system for evaluating and controlling potential opportunities for device to device communication among two or more proximately located user equipment. In response to determining that the target serving gateway is the source gateway, identification information of the source user equipment is sent to a target serving gateway.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: August 9, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Samuli Turtinen, Sami-Jukka Hakola, Timo Kalevi Koskela, Jussi Kustaa Ojala, Kaisu Maria Iisakkila, Jari Jakko Isokangas
  • Patent number: 9412196
    Abstract: A method for regional compositing includes compositing a plurality of video planes and at least one graphics plane. Graphics elements of the at least one graphics plane may be stored into a single graphics plane. A rectangle may be associated to one or more graphics elements of the single graphics plane. A Z-order of the plurality of video planes and the at least one graphics plane may be determined according to rectangular regions defined by rectangles associated with graphics elements of the single graphics plane. A pixel-by-pixel Z-order may be performed based on the determined Z-order of the plurality of video planes and the at least one graphics plane.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventor: Jason Herrick
  • Patent number: 9414422
    Abstract: Systems and methods are provided for using geo-fencing techniques to assist in detecting mobile communication devices that are close enough to support direct communication. A mobile communication device can periodically report its geo-fence area to a central server. The server can determine whether to ask the communication device to report more precise geographic information (e.g., GPS information) based on whether another communication device eligible for direct communication is within the same geo-fence area.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventors: Farouk Belghoul, Dutt H. Kalapatapu, Kamesh Medapalli
  • Patent number: 9413312
    Abstract: Presented are circuits and methods for providing real-time short-circuit detection, capable of detecting a short-circuit prior to occurrence of an over-limit current event. Such a circuit can be used to provide real-time short-circuit detection for a switched-mode system for a switched-mode system having a pre-driver and a power stage, and includes a reference block for generating a reference voltage according to drive signals provided by the pre-driver, and a comparator, which may be a synchronized comparator. The comparator is configured to compare the reference voltage to a switching node voltage generated in a power stage of the switched-mode system, and to produce an output enabling detection of the short-circuit in the switched-mode system.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: August 9, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Xicheng Jiang, Jianlong Chen, Sasi Kumar Arunachalam
  • Patent number: 9413651
    Abstract: Methods, systems, and computer program products for packet inspection are provided herein. The method includes the steps of receiving a first packet of a stream of packets and processing the first packet using a slow processing path. The method also includes the steps of examining a network layer or transport layer of the first packet to determine whether a protocol used by the stream of packets is relevant, and transferring subsequent packets in the stream to a fast processing path if the protocol used is not relevant. The method further includes the steps of examining an application layer of a pre-determined number of packets subsequent to the first packet to determine whether a Uniform Resource Locator (URL) field of each of the pre-determined number of packets is relevant, and transferring packets subsequent to the pre-determined number of packets to a fast processing path if the URLs are not relevant.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventor: Kirill Tsym
  • Patent number: 9414113
    Abstract: Media gateways (MGs), grouped into a hierarchy, are operable to provide a multiparty conferencing among client devices. Gateway resources such as processors, Codecs and network interfaces are aggregated at each MG to establish distributed connection sessions based on resource management metrics such as minimizing total network. The distributed connection sessions are utilized to provide the multiparty conferencing. Each MG may aggregate the gateway resources, which may be determined utilizing a look-up table, from other MGs for sharing among the MGs. Each MG may be activated to provide the media gateway controller (MGC) processing utilizing the shared aggregated gateway resources. A MG may be de-activated from the MGC processing when needed and the associated connection sessions may be subsequently released. Gateway resources are managed at each MG based on the resource management metrics in order to establish distributed connection sessions to support the multiparty conferencing among the client devices.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: August 9, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Gordon Yong Li, Xuemin Chen, Arlen J Kirchoff, Jr.
  • Patent number: 9413188
    Abstract: A method and apparatus is disclosed to charge a battery. A wall adapter may provide a power to a battery charger in a collapsed mode of operation. In the collapsed mode of operation, the wall adapter may provide the battery charger with a collapsed power. The battery charger may provide a charging current and/or voltage in a constant current charge mode of operation and/or a constant voltage charge mode of operation using the collapsed power. When operating in the constant current charge mode of operation, the battery charger provides the charging current and/or voltage having a constant current until the voltage of the battery is less than or substantially equal to a constant charge voltage. Alternatively, when operating in the constant voltage charge mode of operation, the battery provides the charging current and/or voltage having a constant voltage until the voltage of the battery is less than or substantially equal to a float voltage.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventors: Russell Eliot Radke, Mark David Rutherford
  • Patent number: 9414225
    Abstract: A communication device configured to provide Web real-time communication (WebRTC) for internet protocol (IP) multimedia services utilizing one or more 3GPP protocols. The communication device can be configured to authenticate communication with one or more clients using one or more IP Multimedia Subsystem (IMS) credentials. The communication device can also be configured to convert communications between WebRTC and 3GPP protocols utilizing Traversal Using Relays around Network Address Translation (TURN) functionality implemented within the communication device.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventors: Petrea Timariu, Florin Baboescu, Dutt Kalapatapu, Vojislav Vucetic, Kamesh Medapalli
  • Patent number: 9413578
    Abstract: An auxiliary reduced power analog-to-digital converter (ADC) is provided for use during sleep periods of a receiver. The auxiliary ADC has a reduced dynamic range but sufficient accuracy to allow demodulation of signaling information contained in an input signal and to update control parameters used for synchronization and channel estimation. As such, a main higher power, higher dynamic range ADC can be turned off during sleep periods, reducing receiver power consumption. The main ADC is turned on at the end of a sleep period, and the receiver can be ready for receiving data immediately using the main ADC because the control parameters are maintained up to date during the sleep period using the auxiliary ADC.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventors: Ravikiran Rajagopal, Jeffrey Scott Putnam, Ramon Gomez
  • Patent number: 9414080
    Abstract: A video transmitter compresses an uncompressed 3D video into a base view video and an enhancement view video using MPEG-4 MVC standard. The video transmitter allocates bits to compressed pictures of the uncompressed 3D video based on corresponding picture type. More bits are allocated to I-pictures than P-pictures, and more bits are allocated to P-pictures than B-pictures in a given coding view. More bits are allocated to a compressed picture of the base view video than a same type compressed picture of the enhancement view video. The correlation level between the base view video and the enhancement view video is utilized for bit-allocation in video compression. More bits are allocated to a picture in a lower coding layer than to the same type picture in a higher coding layer in a given coding view. Pictures with the same cording order are identified from different view videos for a joint bit-allocation.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: August 9, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Xuemin Chen, Samir Hulyalkar, Marcus Kellerman, Ilya Klebanov
  • Patent number: 9413490
    Abstract: An outer encoder encodes input data signal to generate a first encoded signal. An inner encoder encodes a subset of the input data to generate a second encoded signal, wherein the inner encoder has a different forward error correction (FEC) than the outer encoder. A symbol mapper processes the first encoded signal and the second encoded signal to generate a sequence of discrete-valued modulation symbols.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventor: Thomas J. Kolze
  • Patent number: 9413375
    Abstract: A CMOS analog and audio front-end circuit includes an enhanced analog-to-digital converter (ADC) that achieves a desired signal-to-noise-and-distortion (SNDR) and an analog-front-end transmit (TX) digital-to-analog converter (DAC). The enhanced ADC includes an improved single Op-Amp resonator coupled to a feed-forward loop and can substantially reduce signal transfer function (STF) peaking of the enhanced ADC. The CMOS analog and audio front-end circuit is integrated with a baseband processor.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventors: Xicheng Jiang, Xinyu Yu, Fang Lin, Yee Ling Cheung, Michael Inerfield
  • Patent number: 9414076
    Abstract: A system may receive an input stream for a coding operation by a coding device. The system may determine a processing device to assist the coding device with the coding operation. The processing device may generate an indicator containing coding information or other coding assistance by processing the input stream. The processing device may send the indicator to the coding device. In some cases, the indicator may be embedded in the metadata of the stream by the processing device. The indicator may be extracted by the coding device. After reception of the indicator, the coding device may execute the coding task while using the information in the indicator to assist.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventors: Wade Keith Wan, Xuemin Chen, Minhua Zhou, Peisong Chen, Zhijie Yang
  • Patent number: 9413385
    Abstract: A decoder for a current-steering digital-to-analog converter (DAC) is described herein. In an embodiment, the decoder is a dynamic element matching (DEM) row/column decoder that randomizes pairs of row control signals and column control signals that are provided to a matrix of current cells. The randomization is performed in a manner that ensures that the pairs of row control signals are randomized as pairs. In another embodiment, the decoder is an N-dimensional decoder, where N is any integer greater than two. The N-dimensional decoder comprises an N number of decoders that are each configured to provide respective control signals that are provided to current source(s) in current cell(s) in a respective dimension of an N-dimensional matrix of current cells for enabling current source(s) included therein. Such decoders advantageously allow for a simpler, more efficient design compared to a non-segmented, unary DAC due to the smaller area and lower power consumed.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventor: Jan Mulder
  • Patent number: 9414205
    Abstract: A temporary work group system may include one or more network devices and one or more working devices. The network device can allocate an access point in a network to provide network access to a temporary work group. Working devices may be selectively identified by the network device as being available for inclusion in the temporary work group based on a first predetermined criteria that includes proximity to the access point and authentication of each of the working devices. Selectively identified working devices can be associated with the temporary work group based on a second predetermined criteria that includes a respective relative location of the working devices and respective functionality of the working devices. The system may preempt working devices from association with the work group session until such devices meet both the first predetermined criteria and the second predetermined criteria.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 9, 2016
    Assignee: Broadcom Corporation
    Inventors: Yongbum Kim, Patricia Ann Thaler, Yasantha Rajakarunanayake, Michael David Johas Teener, Wael William Diab
  • Patent number: 9414407
    Abstract: In a heterogeneous network environment where both high and low power nodes are sharing the same channel/frequency, explicit signaling in a downlink control message is used to select whether scheduling information SI is to be transmitted by a user equipment UE with a data payload or without a data payload. For the case where the selection is that SI is to be transmitted with a data payload, the downlink control message is used for the UE to select a transport format combination TFC for transmission of the SI with the data payload. Else for the case where the selection is that SI is to be transmitted without a data payload, the downlink control message is used for the UE to select transmit power for the transmission of the SI without the data payload.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: August 9, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Tao Chen, Arto Johannes Lehti, Karl Markko Juhani Lampinen, Christopher Callender, Ilmari Repo
  • Patent number: 9414070
    Abstract: A bridge routing module can be incorporated into a closed network fabric, such as a vehicular network. The bridge routing module includes an interface circuit to be coupled to other elements of the closed network fabric, for example other bridge routing modules or switch modules. The bridge routing module includes memory to store information associating packet content types with packet routing parameters, among other things. A processing module included in the bridge routing module analyzes packets to identify the type of content carried by the packets, and determines packet routing parameters based on the packet's content type. Ingress and egress of the packet are controlled in accordance with the packet routing parameters determined by the processing module.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: August 9, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael W. Diab, Nicholas Ilyadis
  • Publication number: 20160226498
    Abstract: Adaptive clocking schemes for synchronized on-chip functional blocks are provided. The clocking schemes enable synchronous clocking which can be adapted according to changes in signal path propagation delay due temperature, process, and voltage variations, for example. In embodiments, the clocking schemes allow for the capacity utilization of a logic path to be increased.
    Type: Application
    Filed: April 11, 2016
    Publication date: August 4, 2016
    Applicant: Broadcom Corporation
    Inventors: Paul Penzes, Mark Fullerton
  • Publication number: 20160226530
    Abstract: A multi-mode wireless communication device and multi-mode communication method are disclosed. The multi-mode device includes a first baseband co-processor configured to execute low-level stack operations of a first wireless communications protocol employed within a first wireless communications network. The device also includes a host baseband processor configured to execute a set of protocol stack operations of a second wireless communications protocol employed within a first wireless communications network and higher-level stack operations of the first wireless communications protocol. A data communication channel capable of carrying data received by the multi-mode wireless communication device from the first wireless communications network or sent by the multi-mode wireless communication device through the first wireless communications network is provided between at least the host baseband processor and the first baseband co-processor.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 4, 2016
    Applicant: Broadcom Corporation
    Inventors: Frederic HAYEM, Leo Borromeo, Michiel Lotter
  • Publication number: 20160226572
    Abstract: A wireless communication device includes a polarity setting module configured to set a plurality of polarity modes for the wireless communication with the plurality of external devices. The plurality of polarity modes includes selected ones of at least: a first polarity mode, and a second polarity mode. The polarity setting module sets the plurality of polarity modes based on information received from the plurality of external devices. A framing module is configured to generate data for transmission to the plurality of external devices based on the plurality of polarity modes set by the polarity setting module.
    Type: Application
    Filed: April 12, 2016
    Publication date: August 4, 2016
    Applicant: BROADCOM CORPORATION
    Inventors: Alireza Tarighat Mehrabani, Ahmadreza Rofougaran, Maryam Rofougaran