Patents Assigned to Broadcom Corporation
  • Patent number: 9325637
    Abstract: A system for transferring data includes an egress node including an egress port, and an ingress node configured to receive a data segment of a data packet destined for the egress port. The data packet is associated with a packet priority level. The ingress node is configured to receive an egress statement vector from the egress node indicating whether the egress port is or is not flow controlled for data associated with the packet priority level. The ingress node is configured to determine whether the egress port is available to receive the data segment from the ingress node before other data segments of the data packet are received at the ingress node based on the egress statement vector.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: April 26, 2016
    Assignee: Broadcom Corporation
    Inventor: Brad Matthews
  • Patent number: 9323298
    Abstract: Disclosed are various embodiments of adaptive management of a device. The adaptive management includes, e.g., power management, energy management, and diagnostics. In one embodiment, a device including a power management unit (PMU) communicatively coupled to a processor is configured to transmit a status notification to the processor in response to an interrupt signal; obtain a high level state command from the processor in response to the status notification, and modify power operation of the device in response to the high level state command. In another embodiment, a method for charging a power source includes obtaining, by a PMU of a device, operational characteristics of a power supply in communication with the device; determining a power supply type based at least in part upon the operational characteristics; and controlling charging of the power source based at least in part upon the power supply type.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: April 26, 2016
    Assignee: Broadcom Corporation
    Inventor: Reinierus Hendricus Maria van der Lee
  • Patent number: 9322924
    Abstract: A frequency synthesizer in a GNSS receiver chip enables duty cycling operation of the frequency synthesizer. The frequency synthesizer is cycled on to generate required clock signals for the GNSS receiver chip, and cycled off during a measurement duty cycle comprising measurement available intervals and measurement unavailable intervals. A reference clock inputted to the frequency synthesizer is on during the measurement duty-cycle. During the measurement available intervals, the frequency synthesizer is cycled on to generate the required clock based on the reference clock. During the measurement unavailable intervals, the frequency synthesizer is cycled off and clock timing is maintained based on the reference clock. A number of elapsed clock cycles of the reference clock is captured for a measurement unavailable interval and transferred to a clock offset. The GNSS receiver chip processes signals received using the required clock and the clock offset in a following measurement available interval.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: April 26, 2016
    Assignee: Broadcom Corporation
    Inventor: Charles Abraham
  • Patent number: 9325378
    Abstract: Methods and systems are disclosed for determining the positioning of computer display devices using transmitted radio signals. A computing device may receive a radio signal transmitted by a display device. Based on the received radio signal, the computing device may determine the position of the display device. The computing device may then output a video signal to the display device, based on the determined position. The video signal may include a user interface for the computing device according to the determined position. Changes in the position of the display device may be detected based on radio signals, and the output video signal may be changed as well.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: April 26, 2016
    Assignee: Broadcom Corporation
    Inventor: Tommy Kee
  • Patent number: 9326239
    Abstract: A method for managing connectivity of a central device with a peripheral device is provided. The method includes determining a location of a central device, determining a proximity of the central device to a peripheral device group based at least in part on a comparison of the location of the central device to a location profile associated with the peripheral device group and adjusting a scanning duty cycle of the central device in response to the determined proximity of the central device to the peripheral device group. Bluetooth Low Energy modules and systems are also provided.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: April 26, 2016
    Assignee: Broadcom Corporation
    Inventors: Angel Polo, Chikan Kwan, Guoxin Xie
  • Patent number: 9326004
    Abstract: A method and system to decode a video stream are provided. The method comprises receiving macroblocks, filtering and decimating the macroblocks to create decimated macroblocks and storing the decimated macroblocks. The method further comprises creating a decimated reference block from one or more decimated macroblocks of a decimated reference picture and interpolating selected pixels of the decimated reference block to create an interpolated reference block. The method further comprises pre-processing selected columns of the interpolated reference block to create a processed reference block for motion compensation.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: April 26, 2016
    Assignee: Broadcom Corporation
    Inventors: Bhatia Sandeep, Jason Demas, Subramanian M. K. Kuppuswamy, Bhaskar Mala Sherigar, Parijat Gupta, Darren Neuman, Ramakrishnan Lakshman
  • Publication number: 20160112175
    Abstract: In an ad hoc network a feedback radio resource maps from a data radio resource to at least one frequency sub-band which the data resource excludes. The feedback resource is also spaced in time from the data resource by a predetermined interval. Feedback (ACK/NACK) for data received in the data resource is then sent in the feedback resource. In various embodiments the sub-band is one or more edges of the data resource channel, or edges of a component carrier. The predetermined interval may be a function of how much of the data resource is occupied by data. The data transmitting device delays sending its data by a time offset from the end of a previous transmission on that channel, or if it does not know the end time it delays until the predetermined interval plus the length of the feedback resource have lapsed. Various synchronization aspects are also disclosed.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 21, 2016
    Applicant: Broadcom Corporation
    Inventors: Samuli TURTINEN, Sami-Jukka Hakola, Timo K. Koskela
  • Publication number: 20160109580
    Abstract: A combined GPS and GLONASS receiver receives GPS signals and GLONASS signals. A calibration signal is generated utilizing the received GPS signals and/or the received GLONASS signals to offset group delay errors in the received GLONASS signals. The generated calibration signal is filtered through Kalman filters to estimate group delay variations in the received GLONASS signals. The estimated group error delay variations are combined with the received GLONASS signals to calibrate the received GLONASS signals by offsetting the estimated group error delay variations. When GPS signals are not available for use, the combined GPS and GLONASS receiver obtains group delay errors stored or in the received GLONASS signals to estimate calibration coefficients. The estimate calibration coefficients are updated utilizing received GPS and/or GLONASS signals.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 21, 2016
    Applicant: Broadcom Corporation
    Inventor: Charles Abraham
  • Publication number: 20160109899
    Abstract: An integrated circuit package including an induction-coupled clock distribution system is disclosed. An exemplary embodiment of the disclosure includes a transmission module coupled to a main clock line, a clock reception module coupled to the transmission module, the clock reception module including a clock output line, and an electronic circuit coupled to the clock output line of the clock reception module, the electronic circuit including at least one clocked element and configured to operate synchronously with a clocking signal received through the clock output line of the clock reception module. The transmission module may be disposed on the supporting case of the IC package, and the electronic circuit and the clock reception module may be disposed on the semiconductor die of the IC package.
    Type: Application
    Filed: October 9, 2015
    Publication date: April 21, 2016
    Applicant: Broadcom Corporation
    Inventors: David CHANG, Ajat HUKKOO
  • Patent number: 9317103
    Abstract: A method and system for controlling power is provided. The system is configured to selectively control a plurality of power control domains. The system may be configured to process audio data in at least one of the domains. The system may be configured to output audio data, while one or more of the power control domains is suspended.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventor: Gordon Hollingworth
  • Patent number: 9319051
    Abstract: Digital phase-locked loop (PLL) with dynamic hybrid (mixed analog/digital signal) delta-sigma (??) phase/frequency detector (?? PFD). A hybrid 2nd-order ?? PFD may be implemented based on a continuous-time 1st-order ?? analog-to-digital converter (ADC) enhanced to 2nd-order via closed loop frequency detection. Fine resolution encoding of the ?? PFD output facilitates true multi-bit phase/frequency error digitization with drastically reduced ?? quantization noise. The implementation of low complexity ?? PFD is assisted via digital requantization and adaptive noise cancellation. The PLL includes independent frequency-locking and phase-locking operational modes and all-digital control of a digitally controlled oscillator (DCO).
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Ioannis Loukas Syllaios, Henrik Tholstrup Jensen
  • Patent number: 9319099
    Abstract: A system and method to reduce and/or eliminate interference between an indoor unit (IDU) and an outdoor unit (ODU) in a split backhaul architecture. The interference can be present in, for example, an N-plexer in the IDU and/or the ODU. For example, interference on an outbound signal that is introduced by an inbound signal in the N-plexer can be reduced and/or eliminated by introducing a cancellation signal that is combined with the outbound signal. Further, the N-plexer can include two or more signal cancellation modules configured such that the output of a first signal cancellation module is connected to both a common pathway and the input of the second signal cancellation module. The input of the first signal cancellation module and the output of the second signal cancellation module can be configured as the Tx and Rx pathways of the IDU and/or ODU with respect to the common pathway.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Serguei Demine, Hanan Leizerovich, Yaacov Sturkovich
  • Patent number: 9319759
    Abstract: Embodiments reduce overhead in Ethernet Passive Optical Network (EPON) networks by reducing the amount of switching among Optical Network Units (ONUs) done by the Optical Line Terminal (OLT). In one embodiment, Logical Link Identifiers (LLIDs) hosted by the same ONU are linked at the OLT such that the OLT grants same ONU LLIDs consecutively when appropriate. This reduces the optics related delay associated with switching among ONUS. At the same time, the linking of LLIDs hosted by the same ONU allows for data from multiple LLIDs to be grouped together within a single Forward Error Correction (FEC) block at the ONU, when appropriate, reducing FEC overhead.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Brian Chaffins, Eric Lynskey, Ryan Hirth, Edward Wayne Boyd
  • Patent number: 9317310
    Abstract: Systems and methods for handling virtual machine packets are provided. In some aspects, a method includes receiving, by a network interface controller, an indicator of a packet from a virtual machine. The indicator bypasses a virtual switch coupled to the virtual machine. The method also includes determining, in response to receiving the indicator, whether the packet is designated for accelerated processing. The method also includes providing the indicator to the virtual switch for processing if the packet is determined not to be designated for accelerated processing. The method also includes processing, by the network interface controller, the packet for transmission if the packet is determined to be designated for accelerated processing.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Ariel Hendel, Karagada Ramarao Kishore
  • Patent number: 9319289
    Abstract: A device for providing adaptive bit rate streaming that includes a first transcoder configured to transcode a video stream based at least in part on an encoding characteristic to generate a first transcoded video stream, a network monitor configured to monitor network conditions including a network bandwidth of a network, an adjustment module configured to cause the transcoder to adjust the encoding characteristic in response to a change in the network conditions, an advertising module configured to advertise to a client device an ABR profile that corresponds to the first transcoded video stream, wherein the advertising module updates the advertised single ABR profile when the at least one encoding characteristic is adjusted, and a network interface configured to transmit segments of the first transcoded video stream to the client device via the network in response to requests therefor.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Alexander Garland MacInnis, Rajesh Shankarrao Mamidwar
  • Patent number: 9318785
    Abstract: Methods and apparatus are disclosed for wirelessly communicating among integrated circuits and/or functional modules within the integrated circuits. A semiconductor device fabrication operation uses a predetermined sequence of photographic and/or chemical processing steps to form one or more functional modules onto a semiconductor substrate. The functional modules are coupled to an integrated waveguide that is formed onto the semiconductor substrate and/or attached thereto to form an integrated circuit. The functional modules communicate with each other as well as to other integrated circuits using a multiple access transmission scheme via the integrated waveguide. One or more integrated circuits may be coupled to an integrated circuit carrier to form Multichip Module. The Multichip Module may be coupled to a semiconductor package to form a packaged integrated circuit.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Arya Reza Behzad, Sam Ziqun Zhao, Jesus Alfonso Castaneda, Michael Boers
  • Patent number: 9319236
    Abstract: An optical line terminal (OLT) system for a passive optical network (PON) may include a processor, an OLT Medium Access Control (MAC) device communicatively coupled to PON ports, and a switch device communicatively coupled to the OLT MAC device via an Ethernet interface. The processor may map logical identifiers of each PON port to tunnel identifiers, where each tunnel identifier is indicative of a logical identifier and its corresponding PON port. The OLT MAC device may receive upstream data items that include logical identifiers over the PON ports. The OLT MAC device may replace the logical identifier of each upstream data item with the tunnel identifier that is mapped to the logical identifier and the PON port over which the upstream data item was received. The OLT MAC device may transmit, over the Ethernet interface to the switch device, the upstream data items including the tunnel identifiers.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Mark Griswold, Ryan Hirth
  • Patent number: 9319758
    Abstract: One embodiment provides a system that performs protection switching in an Ethernet passive optical network (EPON), which includes an optical line terminal (OLT) and at least one optical network unit (ONU). The system is configured with at least one redundant component for the OLT and/or ONUs, wherein the redundant component can be optical or electrical, and can be a port, line card or link. The system provides protection by detecting a failure, and switching automatically to the redundant components to reduce service disruption time. The protection switching comprises: preserving the existing configuration over the loss of at least one of a multiple-point control protocol (MPCP) message; an operations, administration and maintenance (OAM) message; and a signal on the physical layer. The system recovers from the failure without performing ONU discovery.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Sanjay Goswami, Lawrence D. Davis, Edward W. Boyd
  • Patent number: 9320007
    Abstract: A communication network of the present disclosure can determine a location of a communication device, such as a mobile communication device, a wireless access point, and/or a base station to provide some examples, within its geographic coverage area based upon one or more communication signals that are communicated within the communication network and/or between the communication network and another communication network. The communication network can implement a multilateration technique to determine the location of the communication device based upon the one or more communication signals as received over various signal pathways. In, an embodiment, the communication device can include multiple receiving antennas for receiving the one or more communication signals over multiple first signal pathways. The multilateration technique can use the one or more communication signals as received over the multiple first signal pathways to estimate a coarse location of the mobile communication device.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Yasantha Rajakarunanayake, Vinko Erceg
  • Patent number: 9319753
    Abstract: A method for performing trick-mode operations with decreased latency for transcode streaming includes receiving and recording a stream of video data. A single transcoder may transcode the stream of video data and generate output video data in an output buffer following. Segmentation index information may be generated that refers to the output data in the output buffer. Skip-backwards, skip-ahead, and resume requests received from a client device are responded by retrieving transcoded video data from the output buffer or retrieving and transcoding video data from an input storage. A method for performing skip-ahead trick-mode operation with decreased latency may use two transcoders such as two threads of the single transcoder to transcode temporally current content and forward content. The forward content may be associated with a forward time offset with respect to the temporally current content. The transcoded forward content is provided in response to skip-ahead trick mode request.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: April 19, 2016
    Assignee: Broadcom Corporation
    Inventors: Hongtao Zhu, Alexander Garland Macinnis