Patents Assigned to Broadcom Corporation
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Publication number: 20130239161Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute video programming in the form of MPEG2 TS packets, flagged by marker packets, in a round-robin manner across the communication channels. Channel bonding synchronization information may be present in packets defined above the data-link layer or added to fields within data-link layer frames.Type: ApplicationFiled: November 9, 2012Publication date: September 12, 2013Applicant: Broadcom CorporationInventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Anand Tongle, Victor Hou
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Publication number: 20130235157Abstract: A video receiver receives a compressed 3D video comprising a base view video and a residual view video from a video transmitter. The video receiver decodes the received base view video and an enhancement view video of the received compressed 3D video into a left view video and a right view video. Base view pictures are generated selectively based on available memory resource. The residual view video is generated by subtracting base view pictures from corresponding enhancement view pictures. The received base view and residual view videos are buffered for video decoding. Pictures in the buffered residual view video are added to corresponding pictures in the buffered base view video for enhancement view decoding. The left view video and/or the right view video are generated from the resulting decoded base view and enhancement view pictures. A motion vector used for a disparity predicted macroblock is applied to adjacent macroblock pre-fetching.Type: ApplicationFiled: April 22, 2013Publication date: September 12, 2013Applicant: Broadcom CorporationInventors: XUEMIN CHEN, MARCUS KELLERMAN, SAMIR HULYALKAR, ILYA KLEBANOV
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Publication number: 20130235926Abstract: Memory efficient video parameter processing. A communication system including at least two respective devices, namely, a transmitter device and a receiver device, operates with significant reduction in the amount of signaling provided between those respective devices. Such devices may be transceiver devices. Considering such a transmitter device that includes an encoder, such as a video encoder, and a receiver device that includes a decoder, such as a video decoder, and output bitstream corresponding to an encoded video signal may be provided from the transmitter device and received by the receiver device. Such an output bitstream may be generated by a video encoder within the transmitter device and may subsequently undergo appropriate processing by a video decoder within the receiver device. One or more frame-based signals, corresponding respectively to the number of blocks, may be communicated as being respectively limited to at most one step of recursion among the various blocks.Type: ApplicationFiled: February 28, 2013Publication date: September 12, 2013Applicant: Broadcom CorporationInventors: Wade K. Wan, Peisong Chen
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Publication number: 20130237169Abstract: A transceiver includes a receiver section and a transmitter section. The receiver section converts an inbound Multiple Frequency Bands Multiple Standards (MFBMS) signal into a down converted signal, wherein the inbound MFBMS signal includes a desired signal component and an undesired signal component. In addition, the receiver section determines spectral positioning of the undesired signal component with respect to the desired signal component and adjusts at least one of the MFBMS signal and the down converted signal based on the spectral positioning to substantially reduce adverse affects of the undesired signal component on the desired signal component to produce an adjusted signal. The transmitter section converts an outbound symbol stream into an outbound MFBMS signal.Type: ApplicationFiled: April 10, 2013Publication date: September 12, 2013Applicant: Broadcom CorporationInventors: John Walley, Jeyhan Karaoguz, Brima Babatunde Ibrahim, Arya Reza Behzad, Vinko Erceg, David Rosmann
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Publication number: 20130239159Abstract: A data communication architecture delivers a wide variety of content, including audio and video content, to consumers. The architecture employs channel bonding to deliver more bandwidth than any single communication channel can carry. The architecture includes intermediate network devices that may receive content and send content using different groups of communication channels. The network device may process content received across a first set of communication channels for transmission across a second set of communication channels different from the first set. Such processing may preserve a program order of the content during delivery to a destination device.Type: ApplicationFiled: November 9, 2012Publication date: September 12, 2013Applicant: Broadcom CorporationInventors: Rajesh Shankarrao Mamidwar, Xuemin Chen, Victor Hou
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Publication number: 20130237236Abstract: Aspects of a method and system for mitigating interference among femtocells via intelligent channel selection are provided. In this regard, signals which may interfere with cellular communications between a femtocell and a cellular communication device may be detected via the femtocell. Based on the detection, the femtocell may be configured to transmit and/or receive signals on one or more frequencies and/or channels. The one or more frequencies and/or channels may be determined in the femtocell and/or in a network management entity. Detecting interfering signals and configuring the one or more femtocells may occur periodically, upon installation of a femtocell, upon power-up of a femtocell, and/or upon command from a network administrator. The results of the detection may be communicated to one or more other femtocells and/or to a network management entity.Type: ApplicationFiled: April 17, 2013Publication date: September 12, 2013Applicant: Broadcom CorporationInventors: Charles ABRAHAM, Xuemin Shermin Chen, Wael William Diab, Vinko Erceg, Victor T. Hou, Jeyhan Karaoguz, Mark Kent
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Patent number: 8532117Abstract: An apparatus comprising a plurality of physical ingress ports configured to receive data, each data having a data type; a plurality of physical egress ports configured to transmit data; a memory configured to buffer data that has been received; a plurality of virtual routing devices, wherein each of the virtual routing devices is associated with a particular data type and each of the virtual routing devices is configured to: virtually buffer data associated with the respective data type, and regulate the quality of service provided to the respective data type; and a data manager configured to manage the receipt and transmission of data.Type: GrantFiled: February 13, 2009Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Bruce Kwan, Puneet Agarwal, Lakshmikantha Ashvin
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Patent number: 8532080Abstract: Methods and systems for processing signals in a receiver are disclosed herein and may comprise receiving WCDMA signals via M receive antennas, tracking a plurality of received clusters within the received WCDMA signals, and estimating a complex phase and amplitude of a portion of each of the received clusters. A single cluster may comprise an aggregate of received WCDMA signal paths and (M?1) phase shifters may be utilized for the estimating of the complex phase. Complex waveforms, comprising in-phase (I) and quadrature (Q) components for the received clusters within the received WCDMA signals, may be processed. The processed complex waveforms comprising the in-phase and quadrature components may be filtered to a WCDMA baseband bandwidth. A phase and/or amplitude for at least one of the received WCDMA signals may be adjusted utilizing the estimated complex phase and amplitude. The phase and/or amplitude may be adjusted continuously and/or at discrete intervals.Type: GrantFiled: July 25, 2011Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Mark Kent, Vinko Erceg, Uri Landau, Pieter van Rooyen
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Patent number: 8533282Abstract: A system, method and computer program product is provided for selectively caching domain name system (DNS) information on a network gateway. A CPE attached to the network gateway executes an application that searches files in CPE memory to identify frequently accessed domain names. The domain names are used to generate DNS queries that are transmitted by a network gateway to an IP network for resolution. DNS responses are received from the IP network and parsed to extract each resolved domain name and corresponding IP address, which are then stored in a cache on the network gateway. The cache is then used to resolve DNS queries generated by application programs running on the attached CPE.Type: GrantFiled: February 25, 2002Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventor: Charles E Anderson, IV
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Patent number: 8532139Abstract: An Ethernet network may comprise multi-rate link partners that may be coupled via an Ethernet link. The Ethernet link may comprise a plurality of channels wherein one or more may be silent and/or idle channels set to a low(er) power that may enable energy efficiency. Silent channels may be utilized for transmitting signals comprising one or more distinct physical patterns for controlling data rate transitions. For example, symbols may be utilized for generating the distinct physical patterns. The distinct physical patterns may communicate a new data rate, when to transition the data rate, which channel(s) may bear the data rate transition and/or a method for implementing the data rate transition. The method may comprise activating or suspending a data traffic channel, modifying a signal constellation, modifying PAM levels and/or adjusting inter-frame gap. The new data rate may be determined based on past traffic and/or expected traffic on the network link.Type: GrantFiled: September 22, 2008Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Wael William Diab, Howard Frazier, Scott Powell
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Patent number: 8532163Abstract: A transceiver system is disclosed that includes a plurality of transceiver chips. Each transceiver chip includes one or more SERDES cores. Each SERDES core includes one or more SERDES lanes. Each SERDES lane includes a receive channel and a transmit channel. The transmit channel of each SERDES lane is phase-locked with a corresponding receive channel. The transceiver system has the capability of phase-locking a transmit clock signal phase of a transmitting component with a receive clock signal phase of a receiving component that is a part of a different SERDES lane, a different SERDES core, a different substrate, or even a different board. Each SERDES core receives and transmits data to and from external components connected to the SERDES core, such as hard disk drives. A method of transferring data from a first external component coupled to a receive channel to a second external component coupled to a transmit channel is also disclosed.Type: GrantFiled: February 6, 2012Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Abbas Amirichimeh, Howard Baumer, John Louie, Vasudevan Parthasarathy, Linda Ying
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Patent number: 8533502Abstract: A system and method for physical layer device enabled power over Ethernet (PoE) processing. A digital PoE control module is included within a physical layer device and is designed to complement an analog PoE control module within a power sourcing equipment. The inclusion of the digital PoE control within the physical layer device reduces the complexity of the power sourcing equipment without sacrificing PoE control features.Type: GrantFiled: October 15, 2012Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Wael William Diab, Scott Powell
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Patent number: 8532571Abstract: A mobile device may be operable to determine, based on a known location of the mobile device, a location for a RF communication device that communicates with the mobile device, whenever the mobile device is within proximate range of the RF communication device. The determined location for the RF communication device may be stored in a location database in a location server and/or a memory in the RF communication device. The stored location of the RF communication device may then be used to determine a location for other mobile devices that may communicate with the RF communication device and are within proximate range of the RF communication device. The RF communication device may comprise a radio-frequency identification (RFID) device and/or a near field communication (NFC) device. The determined location for the RF communication device may comprise the known location of the mobile device.Type: GrantFiled: March 26, 2010Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Dave Murray, Charles Abraham, Mark Buer, David Garrett, Jeyhan Karaoguz, David Lundgren
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Patent number: 8533388Abstract: According to one general aspect, a method may include, in one embodiment, grouping a plurality of at least single-ported memory banks together to substantially act as a single at least dual-ported aggregated memory element. In various embodiments, the method may also include controlling read access to the memory banks such that a read operation may occur from any memory bank in which data is stored. In some embodiments, the method may include controlling write access to the memory banks such that a write operation may occur to any memory bank which is not being accessed by a read operation.Type: GrantFiled: October 22, 2009Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventor: Brad Matthews
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Patent number: 8532701Abstract: A multi-mode communication device is disclosed and includes a host baseband processor configured to operate in a first communications system of a plurality of communications systems, and a baseband co-processor configured to operate in a second communications system of the plurality of communications systems. The second communications system is different from the first communications system. The host baseband processor is operable to time synchronize the second communications system to the first communications system based on timing information generated by the baseband co-processor. The host baseband processor may include circuitry for issuing, from the host baseband processor, a timer capture interrupt to the baseband co-processor during a predetermined timer phase of the first communications system.Type: GrantFiled: August 23, 2011Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Frederic Hayem, Leo Borromeo, Michiel Lotter
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Patent number: 8532121Abstract: End-point devices, access points and other types of network nodes each employ multi-path management software to manage communication via multiple possible paths to the Internet backbone from communication applications that run on an end-point device. Although the multi-path management software on an end-point device may operate independently, it may also cooperate with the local communication applications and the multi-path management software located on the access points or other network nodes to select one or more pathways for the local communication applications. Alternatively, the multi-path management software of an end-point device may pass all or a portion of such management responsibility to a local communication application and/or to multi-path management software of another network node. In addition to managing the selection of one or more pathways, the multi-path management software seamlessly switches pathways as may become necessary to meet changing network conditions or bandwidth demands.Type: GrantFiled: September 29, 2009Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventor: James D. Bennett
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Patent number: 8532141Abstract: A method for managing resources in a hybrid wired/wireless local area network (LAN) includes reserving bandwidth for a network device. The reserving of the bandwidth is based, at least in part, on a device hierarchy established within the hybrid LAN. The hierarchy is utilized for one or more of bandwidth reservation, bandwidth sharing, and/or bandwidth allocation within the hybrid LAN. In response to a communication session associated with the network device, at least a portion of the reserved bandwidth may be allocated for use by the network device. The at least a portion of the reserved bandwidth may be used during the communication session. A request for bandwidth may be received by one or both of the network device and/or a second network device.Type: GrantFiled: February 15, 2011Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Ed H. Frank, Richard Martin
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Patent number: 8532487Abstract: One embodiment provides an intelligent passive optical network (PON) node. The intelligent PON node includes a number of optical line terminal (OLT)-side transceivers coupled to a first optical fiber, a number of optical network unit (ONU)-side transceivers, a switching mechanism configured to couple the OLT-side transceivers and the ONU-side transceivers, and a controller configured to control the coupling operation of the switching mechanism. The OLT-side transceivers are configured to transmit optical signals on a number of wavelength channels to and receive optical signals on a number of wavelength channels from the OLT. A respective ONU-side transceiver is configured to transmit optical signals to and receive optical signals from a downstream PON.Type: GrantFiled: October 19, 2009Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Edward W. Boyd, Stephen M. Johnson
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Patent number: 8532019Abstract: Methods and systems for processing signals in a receiver are disclosed herein and may comprise generating at least one control signal that may be utilized to control a first received signal. A phase of the first received signals may be adjusted via the generated control signal so that the phase of the first received signal may be equivalent to a phase of a second received signal, where the phase of the first signal may be adjusted within a processing path used to process the first received signal. An amplitude of the first received signal may be adjusted via the generated control signal so that the amplitude of the first received signal may be equivalent to an amplitude of a second received signal, where the amplitude of the first signal is adjusted within the processing path used to process the first received signal.Type: GrantFiled: June 30, 2005Date of Patent: September 10, 2013Assignee: Broadcom CorporationInventors: Mark Kent, Vinko Erceg, Uri Landau, Pieter van Rooyen
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Patent number: 8532577Abstract: Aspects of a method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a quadrature feedback mixer configuration are presented. Aspects of the system may include an RF transmitter that enables generation of an RF output signal in response to one or more generated input signals. One or more feedback signals may be generated by performing frequency downconversion on the RF output signal within a corresponding one or more feedback mixer circuits. The generated one or more feedback signals may be inserted at a corresponding one or more insertion points in an RF receiver. Each insertion point may be between a receiver mixer circuit and corresponding circuits that generate a baseband signal based on the corresponding one of the feedback signals.Type: GrantFiled: May 31, 2012Date of Patent: September 10, 2013Assignee: Broadcom, CorporationInventors: Arya Behzad, Ali Afsahi, Vikram Magoon, Mark Gonikberg, George Varghese, Guruprasad Revanna