Patents Assigned to Broadcom Corporations
  • Publication number: 20140028870
    Abstract: Embodiments of the present application automatically utilize parallel image captures in an image processing pipeline. In one embodiment, image processing circuitry concurrently receives first image data to be processed and second image data to be processed, wherein the second image data is processed to aid in enhancement of the first image data.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 30, 2014
    Applicant: Broadcom Corporation
    Inventors: DAVID PLOWMAN, NAUSHIR PATUCK, BENJAMIN SEWELL, GRAHAM VEITCH
  • Publication number: 20140032951
    Abstract: A method and system for saving power in a peer-to-peer group owner. The group owner uses an adaptive absence method for deciding the absence of the group owner based on the amount of data traffic in the network. The group owner periodically sends period of absence information with dynamic values to client devices, informing them of the dynamically changing period of absence.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 30, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Neeraj Kumar Garg, Jithu Jance
  • Publication number: 20140029593
    Abstract: Aspects of a method and system for optimal beamforming in a wireless network are presented. Aspects of the system may include one or more processors for use in a requesting communication device wherein the one or more processors may be operable to request a transmission time slot allocation. A determination may be made by a coordinating communication device as whether to assign a sector transmission time slot and/or beamforming transmission time slot to the requesting communication device based on the transmission time slot allocation request. The one or more processors may be operable to receive the assigned sector transmission time slot and/or beamforming transmission time slot.
    Type: Application
    Filed: October 7, 2013
    Publication date: January 30, 2014
    Applicant: Broadcom Corporation
    Inventors: Saishankar Nandagopalan, Christopher Hansen
  • Publication number: 20140028406
    Abstract: A bias loop is used to program LC tank common mode voltage to allow operation at two different supply voltages VDD (e.g., 2.5V and 1.2V), and two different tank swings. This also allows lower phase noise through optimizing Ids shape allowing class C operation for both voltages. The two different supply voltages allow operation using multiple communication protocols such as 802.11n and 802.11ac within a common VCO circuit. The VCO can form part of a transceiver to provide frequencies in multiple bands.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 30, 2014
    Applicant: BROADCOM CORPORATION
    Inventor: Zhiheng Cao
  • Publication number: 20140032010
    Abstract: System and method for incrementally varying input levels and recording respective output temperatures at the varied levels, storing, in a training table, first correlations between the varied levels of the input parameter and defined temperature ranges, detecting an input parameter level during operation and re-recording the output temperature at the detected level, generating a second correlation between the detected level and a second temperature range, determining whether the second temperature range is different from a first temperature range from among the defined temperature ranges, the first temperature range correlating to the level of the input parameter corresponding to the detected level, updating the training table when the second temperature range is different from the first temperature range, predicting an expected temperature range, and dynamically scaling, based on the expected temperature range, the detected level of the input parameter to control the output temperature in real-time.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 30, 2014
    Applicant: Broadcom Corporation
    Inventor: Hwisung JUNG
  • Patent number: 8640204
    Abstract: A system and method for establishing a group of wireless devices having shared media stored thereupon associates each group member device of the group of wireless devices, communicates with at least some of the group member devices of the group of wireless devices to identify shared media and upon receiving a request transmitted by a group member device of the group of wireless devices, supports access to shared media. The shared media may be stored on a different group member device, upon a managing server computer, or a media server. Upon a successful validation, the group member device that made the request is notified to facilitate the access to the shared media. The notification includes access information.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James D. Bennett
  • Patent number: 8638775
    Abstract: Aspects of a method and system for sleep mode signaling for a multi-standard system with Bluetooth are provided. In this regard, a first communication system that communicates utilizing TDM may generate a synchronization signal that is communicatively coupled to a second communication system that communicates utilizing TDM. The first communication system may determine one or more timeslots during which it may be inactive. The first communication system may control, based on the determination, an amount of time that the synchronization signal is in one or more states. The second communication system may receive the synchronization signal from the first communication system. The second communication system may determine timeslots during which the first communication system may be inactive based on an amount of time that the synchronization signal is in one or more states. The second communication system may transmit and/or receive at times that are scheduled based on the determination.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventor: Steven Hall
  • Patent number: 8639473
    Abstract: A system and method for controlling performance and/or power based on monitored performance characteristics. Various aspects of the present invention may comprise an integrated circuit comprising a first circuit module that receives electrical power. A second circuit module may monitor one or more performance characteristics of the first circuit module and/or the integrated circuit. A third circuit module may, for example, determine power control information based at least in part on the monitored performance characteristic(s). The power control information may be communicated to power supply circuitry to control various characteristics of the electrical power. Various aspects of the present invention may also comprise an integrated circuit comprising a first module that monitors at least one performance characteristic of a first electrical device.
    Type: Grant
    Filed: January 6, 2013
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Neil Y. Kim, Pieter Vorenkamp
  • Patent number: 8638396
    Abstract: Apparatus and methods to receive and display digital television signals are described. In one embodiment, an apparatus to receive digital television signals comprises an antenna assembly coupled to the signal processing circuitry and comprising a first antenna positioned to maximize reception in a first direction and a second antenna positioned to maximize reception in a second direction, different from the first direction, and a processor coupled to the antenna assembly and comprising a selection logic module to select an antenna to receive a digital television signal for a specific channel, and a tuning logic module to configure the antenna assembly to receive a signal via a selected antenna.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Christopher R. Keate, Armando V. Lopez, Eric S. Tang
  • Patent number: 8639261
    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: Grant
    Filed: July 31, 2012
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Mark Gonikberg, Marcellus Forbes
  • Patent number: 8640011
    Abstract: Single CRC polynomial for both turbo code block CRC and transport block CRC. Rather than employing multiple and different generation polynomials for generating CRC fields for different levels within a coded signal, a single CRC polynomial is employed for the various levels. Effective error correction capability is achieved with minimal hardware requirement by using a single CRC polynomial for various layers of CRC encoding. Such CRC encoding can be implemented within any of a wide variety of communication devices that may be implemented within a wide variety of communication systems (e.g., a satellite communication system, a wireless communication system, a wired communication system, and a fiber-optic communication system, etc.). In addition, a single CRC check can be employed within a receiver (or transceiver) type communication device for each of the various layers of CRC of a received signal.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Ba-Zhong Shen, Tak K. Lee
  • Patent number: 8638702
    Abstract: Certain aspects of a method and system for time based wireless local area network (WLAN) scanning may include controlling scanning of a plurality of wireless access points in one or more WLANs by a WLAN station based on one or more factors comprising power consumed by the WLAN station based on the scanning, and/or a priority level of one or more media packets to be handled by the WLAN station. The information may be acquired for one or more of the plurality of wireless access points in one or more WLANs during the controlled scanning.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventor: Daniel Daum
  • Patent number: 8638764
    Abstract: A mobile telecommunications architecture is disclosed. A downlink mobile telecommunications signaling message is received via a first communication interface associated with a single shared network controller connection to a mobile switching center (MSC) server. The downlink mobile telecommunications signaling message is mapped to one of a plurality of small scale base stations each of which is configured to perform at least some network controller functions.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Yan Zhang, Ahmed Tariq
  • Patent number: 8638692
    Abstract: A system and method for end-to-end automatic configuration of network elements using a link-level protocol. Network elements can be auto-configured through the propagation of configuration information. Configuration information is propagated using ports that have defined port roles that enable automatic propagation of configuration information.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Benjamin Gale, John McLendon
  • Patent number: 8638664
    Abstract: A network device includes a port, a buffer, a flow control module, and a service differentiation module. The port is configured to send and receive a packet, wherein the port is connected to a network entity. The buffer is configured to store the packet. The flow control module is configured to control the transmission of the packet within the network device. The service differentiation module is coupled with the buffer and the flow control module. The service differentiation module is configured to regulate storage of the packet in the buffer and to regulate the transmission of the packet from the network device to the network entity. The service differentiation module is also configured to determine excess bandwidth available within the network device and to allocate the excess bandwidth to transmit the packet to the network entity.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Laxman Shankar, Shekhar Ambe
  • Patent number: 8638258
    Abstract: A GNSS enabled mobile device receives GNSS assistance data in a determined format from a central processing station communicatively coupled to a wide area reference network (WARN). The WARN comprises a first plurality of GNSS tracking stations from which usable signals are received by the central processing station, and a second plurality of GNSS tracking stations from which unusable or no signals are received by the central processing station. The central processing station generates the GNSS assistance data using a complete set of GNSS reference feeds of the WARN. The complete set of GNSS reference feeds comprises actual GNSS reference feeds from the first plurality of GNSS tracking stations and virtual GNSS reference feeds derived for the second plurality of GNSS tracking stations from processed actual GNSS reference feeds. The generated GNSS assistance data is reformatted into a determined format and is communicated to the GNSS enabled mobile device, accordingly.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Charles Abraham, David Albert Lundgren
  • Patent number: 8638263
    Abstract: A technique to extend antenna coverage pattern of a planar antenna array. In one instance a reflector is disposed above the planar antenna array and in another instance a lens element is disposed above the planar antenna array. The reflection or refraction of RF signals allows antenna coverage pattern to be extended in a horizontal direction parallel to the planar surface of the antenna array and beyond a coverage pattern that is typically not available, without such reflection or refraction of the RF signal.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Christopher Hansen, Vadim Piskun
  • Patent number: 8638804
    Abstract: A broadband gateway, which enables communication with a plurality of devices, may be operable to identify an energy efficient certified device from the plurality of devices. The broadband gateway may handle at least one physical layer connection to at least one corresponding network access service provider. Information related to the identified energy efficient certified device, including usage information of the device, may be communicated to one or more entities. The broadband gateway may acquire the usage information of the energy efficient certified device by monitoring whether the device is operating in an energy efficient mode. The broadband gateway may obtain a credit and/or a reward from the one or more entities based on the usage information of the energy efficient certified device. The broadband gateway may deposit the credit and/or the reward to an account associated with the energy efficient certified device.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Wael William Diab, Jeyhan Karaoguz, Xuemin Chen, David Garrett, David Lundgren, Rich Prodan
  • Patent number: 8638867
    Abstract: Systems and techniques for communication using coordinated multi-point transmission. In one embodiment, an apparatus comprises at least one processor and a memory storing a set of computer instructions, configured. The processor is configured to cause the apparatus to determine a linear phase variation between at least first and second transmissions from first and second transmission points based at least in part on a propagation delay difference between the first and second transmissions, and transmit the phase variation information for at least the first and the second transmissions.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Timo E. Roman, Tommi T. Koivisto, Mihai Enescu, Karol Schober
  • Patent number: 8639197
    Abstract: According to one exemplary embodiment, a method of preventing harmonics from causing distortion in a communications system includes feeding a test signal through a pre-distortion circuit in the communications system to a transmitter in the communications system. The method continues by transmitting a distorted output signal produced by the transmitter to an analyzer, analyzing the distorted output signal to identify one or more undesired harmonics, and generating and sending calibration data from the analyzer to calibrate the pre-distortion circuit, thereby preventing the one or more undesired harmonics from causing distortion in the communications system. In one embodiment, a system to prevent harmonics from causing distortion in a communications system includes a pre-distortion circuit, a transmitter, and an analyzer configured to identify one or more undesired harmonics and to generate and send calibration data to prevent the undesired harmonics from causing distortion.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventor: Meng-An Pan