Patents Assigned to Broadcom
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Patent number: 8981986Abstract: Measures are provided for performing direct radio-frequency to digital conversion. A radio-frequency input signal is compared with a plurality of reference voltages to generate a plurality of comparison signals, each comparison signal corresponding to one of the plurality of reference voltages. One or more of the plurality of generated comparison signals are first filtered to generate a first filtered signal. One or more of the plurality of generated comparison signals are second filtered to generate a second filtered signal. A digital output signal is generated at least on the basis of the first filtered signal and the second filtered signal.Type: GrantFiled: August 14, 2013Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Pauli Mikael Seppinen, Markus Nentwig, Sami Seppo Antero Kallioinen, Kim Kaltiokallio
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Patent number: 8982952Abstract: Methods and systems for using motion vector confidence to determine a FME patch priority list for a scalable coder are disclosed, and may include a fine motion estimator receiving a plurality of coarse motion vectors and corresponding confidences. A patch list may be generated based on the corresponding confidences of the coarse motion vectors. The patch list may then be used to determine a search area. Each video block in a present picture may be matched to the video blocks in the search area to find the best match. A fine motion vector may be determined for each video block in the present picture with respect to a video block in the search area.Type: GrantFiled: June 2, 2008Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: David Drezner, Gideon Kojokaro, Yehuda Mittelman
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Patent number: 8982277Abstract: A system and method for video processing is provided. The system and method process a video stream having a first resolution video frame, the first resolution video frame comprising a plurality of second resolution video frames. The second resolution video frames may be used to generate a second video stream.Type: GrantFiled: June 27, 2013Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Wade Keith Wan, Darren Duane Neuman, Jason William Herrick
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Patent number: 8983466Abstract: A system supporting controlled access to multimedia information and media-related services, the system including a gateway communicatively coupled to a broadband network and at least one wireless interface, the gateway capable of selectively communicating multimedia information among the at least one wireless interface and the broadband network, and of communicating with a plurality of access devices via the at least one wireless interface. The gateway is also capable of selecting one of a plurality of access privilege tiers based upon identification information received from one of the plurality of access devices. The identification information includes a plurality of identity data pieces. Each of the plurality of identify data pieces differs from another of the plurality of identity data pieces. Access to each of the plurality of access privilege tiers requires a different degree of authentication that is represented by a different combination of the plurality of identity data pieces.Type: GrantFiled: August 23, 2011Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
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Patent number: 8983523Abstract: A host device may be enabled to support a plurality of wireless interfaces, wherein some of these interfaces may be utilized to support human interface device (HID) based communication. The host device may be enabled to monitor activity of HID devices based on communications via HID capable wireless interfaces, may predict future use of the HID devices based on the monitoring, and may manage sniff communication that is utilized to track and/or detect activities in the HID devices. The management of the sniff communication may comprise adjusting characteristics of the sniff communication to enable improving throughput of other wireless interfaces available via the host device that may be affected by the sniff communication. The adjustment of the characteristics of sniff communication may comprise adjusting, statically and/or dynamically, length of sniff intervals and/or designating of sniff packets as high priority requests.Type: GrantFiled: November 20, 2013Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Brima Ibrahim, Prasanna Desai
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Patent number: 8984038Abstract: Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current filter partition. A value may be computed for each of the selected one or more time domain coefficients based on a corresponding plurality of frequency domain coefficients. The corresponding plurality of frequency domain coefficients may be adjusted based on the computed values. A subsequent plurality of frequency domain coefficients in a subsequent filter partition may be adjusted based on the computed values. Input signals may be processed in the current filter partition based on the adjusted corresponding plurality of frequency domain coefficients. A time-adjusted version of the input signals may be processed in a subsequent filter partition based on the adjusted subsequent plurality of frequency domain coefficients.Type: GrantFiled: November 22, 2013Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Kuoruey (Ray) Han, Peiqing Wang, Linghsiao Wang, Kishore Kota, Arash Farhoodfar
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Patent number: 8982873Abstract: Aspects of a method and system for preserving content timing across femtocell interfaces via timestamp insertion are provided. In this regard, a femtocell may receive a first time-stamped packet via a first interface and transcode the time-stamped packet. The femtocell may buffer the transcoded packet based on a time-stamp recovered from the packet and may transmit the buffered transcoded packet via a second interface. One of the first interface and the second interface may utilize the Internet Protocol. One of the first interface and the second interface may be a non-cellular interface and the other interface may be a cellular interface. The femtocell may be operable to generate a timestamp corresponding to a time instant at which a time-stamped packet arrived via the first interface or the second interface. The timestamp may be referenced to a clock within a cellular enabled communication devices communicatively coupled to the femtocell.Type: GrantFiled: April 30, 2012Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Xuemin (Sherman) Chen, Charles Abraham, Wael William Diab, Vinko Erceg, Victor T. Hou, Jeyhan Karaoguz, Mark Kent
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Patent number: 8983472Abstract: A method and system supporting handoff of a multimedia call session using background network scanning is disclosed. A mobile multimedia handset may engage in the exchange of a multimedia information stream via a first wireless network, and may sniff a portion of radio frequency spectrum for a second wireless network. Information about available services and network quality of service for the second network may be received by querying the second wireless network or from advertising by the second wireless network. Hand-off between the two networks may be based upon the results of the comparison and one or more user-defined criteria, and the handoff may be synchronized according to predefined events in the stream of multimedia information.Type: GrantFiled: January 26, 2012Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Seshadri
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Patent number: 8982753Abstract: Aspects of a method and system for physical layer control of low latency state transitions for energy efficiency. In this regard, a determination may be made to reconfigure a network device from an energy saving mode of operation to a higher performance mode of operation. A first portion of the network device may be reconfigured prior to sending an indication of the reconfiguration to a link partner, and a remaining portion of the network device may be reconfigured after sending the indication. The link partner may begin reconfiguration from an energy saving mode of operation to higher performance mode of operation upon receiving the indication. The energy saving mode may comprise a low power idle (LPI) or a subset PHY mode. The reconfiguration may comprise allocating memory to, and/or de-allocating memory from, buffering received and/or to-be-transmitted data.Type: GrantFiled: May 22, 2009Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventor: Wael William Diab
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Patent number: 8983408Abstract: Aspects of a method and system for estimating and compensating for non-linear distortion in a transmitter using calibration are presented. Aspects of the system may include one more circuits that may enable estimation, within a single IC device, of distortion in output signals generated by a transmitter circuit. The circuitry may enable compensation of the estimated distortion by predistorting subsequent input signals. The transmitter circuit may generate subsequent output signals based on the predistorted subsequent input signals.Type: GrantFiled: March 4, 2013Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventors: Mark Gonikberg, Luis Gutierrez, Colin Fraser, Arya Behzad, George Varghese
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Patent number: 8982658Abstract: 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: August 13, 2013Date of Patent: March 17, 2015Assignee: Broadcom CorporationInventor: William Brad Matthews
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Publication number: 20150070216Abstract: A reconfigurable antenna structure includes first and second reconfigurable antennas, a configuration module, and an antenna processing circuit. The first reconfigurable antenna is configured, in response to a first configuration signal, to have a first radiation pattern and to have a first frequency bandwidth and the second reconfigurable antenna is configured, in response to a second configuration signal, to have a second radiation pattern and to have a second frequency bandwidth. The configuration module is configured to generate the first and second configuration signals. The antenna processing circuit is configured to send one or more transmit signals to one or more of the first and second reconfigurable antennas for transmission via one or more of the channels of interest and receive one or more receive signals from the one or more of the first and second reconfigurable antennas.Type: ApplicationFiled: September 30, 2013Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Nicolaos Georgiou Alexopoulos, Seunghwan Yoon, Alfred Grau Besoli
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Publication number: 20150070229Abstract: An antenna array structure includes a plurality of antennas, wherein a first antenna has a first geometric shape, provides a first radiation pattern, and has a first frequency bandwidth. A second antenna has a second geometric shape to provide a second radiation pattern and has a second frequency bandwidth. The first and second frequency bandwidths at least partially overlap to include channels of interest. An antenna processing circuit sends one or more transmit signals to one or more of the antennas for transmission via one or more of the channels of interest and receives one or more receive signals from the one or more of the antennas or from another one or more of the antennas via the one or more of the channels of interest or from another one or more of the channels of interest.Type: ApplicationFiled: September 30, 2013Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Nicolaos Georgiou Alexopoulos, Seunghwan Yoon, Alfred Grau Besoli
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Publication number: 20150071334Abstract: A vehicle communication network device includes a transceiver configured to communicatively couple with a remote transceiver of another vehicle communication network device via a wired media and processing circuitry coupled to the transceiver. The device detects interference on the wired media that exceeds an interference threshold level. Upon the detection, the device enters a quiet mode during which no data is transmitted on the wired media. After exiting the quiet mode, the device enters an idle mode during which known data is transmitted on the wired media and during which the device receives known data from the remote transceiver. The device retrains its transceiver based upon the known data and after retraining the transceiver, exchanges data with the remote transceiver. The device may also buffer data for transmission, upon the detection, determine buffered data that was likely corrupted by the interference, and after retraining, retransmit the determined buffered data.Type: ApplicationFiled: September 11, 2014Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Ahmad Chini, Mehmet Vakif Tazebay
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Publication number: 20150070215Abstract: A poly spiral antenna includes spiral antenna sections and interconnecting traces. A first spiral antenna section has a first interwoven spiral pattern and a first excitation configuration to provide a first radiation pattern component. A second spiral antenna section has a second interwoven spiral pattern and a second excitation configuration to provide a second radiation pattern component. A third spiral antenna section has a third interwoven spiral pattern and a third excitation configuration to provide a third radiation pattern component. The interconnecting traces couple the first, second, and third spiral antenna sections together such that the first, second, and third radiation pattern components form a radiation pattern of the poly spiral antenna.Type: ApplicationFiled: September 30, 2013Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Nicolaos Georgiou Alexopoulos, Seunghwan Yoon, Alfred Grau Besoli
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Publication number: 20150070569Abstract: The present disclosure relates to a system and method for an enhanced dynamic range image sensor. In some implementations, multiple A/D converters may be applied to sample a plurality of image exposure data while camera shutter remains open.Type: ApplicationFiled: September 30, 2013Publication date: March 12, 2015Applicant: Broadcom CorporationInventor: Ilya Blayvas
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Publication number: 20150072620Abstract: Protocol adaptation layer for wireless communications. Communication devices that include one or more radio modules operable in accordance with multiple communication protocols establish communications using one communication protocol and then switch to another communication protocol. This switching to another communication protocol may be performed based on a variety of factors including effectuating communications of higher throughput, supporting uni-directional communications vs. bi-directional communications, or any other desired factor. In some embodiments, various communication devices include two radio modules that are each implemented to operate in accordance with one particular communication protocol. Alternatively, a multi-protocol capable radio module may support and operate in accordance with more than one communication protocol. Examples of possible communication protocols include those compliant with Bluetooth, IEEE 802.11, and/or 802.15.3c.Type: ApplicationFiled: November 12, 2014Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Saishankar Nandagopalan, Christopher J. Hansen
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Publication number: 20150072671Abstract: A configurable wireless communication device includes a baseband processing module, a transmitter section, a receiver section, an antenna, transmit/receive isolation circuits, high frequency switches, and a configuration module. The baseband processing module converts outbound data into an outbound symbol stream and converts an inbound symbol stream into inbound data. The transmitter section converts the outbound symbol stream into an outbound signal and the receiver section converts an inbound signal into the inbound symbol stream. The configuration module, in a power combining mode, couples, via a set of high frequency switches, the antenna to a set of transmit/receive isolation circuits, wherein a number of the transmit/receive isolation circuits in the set of transmit/receive isolation circuits is based on a desired combined transmit power.Type: ApplicationFiled: September 30, 2013Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Ahmadreza Rofougaran, Alireza Tarighat Mehrabani, Maryam Rofougaran
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Publication number: 20150069951Abstract: A multimode battery charger circuit supporting switch mode and linear mode charging operations. In various embodiments, the multimode battery charging circuit includes mode control circuitry, a linear gate driver, a pulse width modulation (PWM) control circuit, a programmable constant current control loop circuit, and a programmable constant voltage control loop circuit. In operation, the mode control circuitry receives a charge mode indication signal corresponding to a desired charge mode. Based on this signal, the mode control circuitry enables either the linear gate driver or PWM control circuit to provide control signals to output transistors coupled between an adapter power port and a battery pack, thereby supporting a plurality of charging modes. In some embodiments, one or more of the output transistors are formed on a common substrate with the multimode battery charger circuit.Type: ApplicationFiled: September 30, 2013Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Xuezhen Wang, Russell Eliot Radke, Kerry Alan Thompson
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Publication number: 20150074474Abstract: A device for repairing a memory device may include spare memory blocks that may replace corresponding memory blocks that include at least one non-operational memory cell. One or more registers may be coupled in a chain to store memory repair information. A memory repair module may identify, upon a power-up test of the memory device, non-operational memory cells, which are incremental to previously identified defective memory cells in previous power-up tests, and may provide corresponding memory repair information of the identified non-operational memory cells. A logic circuit may block access to one or more registers and may facilitate storing, in one or more unblocked registers, the corresponding memory repair information of the identified one or more non-operational memory cells. The memory repair module may swap a memory block including the identified non-operational memory cells with a spare memory block based on content of the one or more unblocked registers.Type: ApplicationFiled: September 27, 2013Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Mohammad Issa, Rakesh Kumar Kinger