Patents Assigned to Broadcom
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Patent number: 9307350Abstract: 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: GrantFiled: November 12, 2014Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventors: Saishankar Nandagopalan, Christopher J. Hansen
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Patent number: 9307415Abstract: A method, apparatus and computer program product are provided for generating a downlink synchronization group utilized during a discontinuous transmission in an unlicensed band. A method and apparatus may determine a carrier(s) providing a signal(s) enabling timing and frequency tracking a downlink carrier(s) within a downlink synchronization group to devices responsive to discontinuous transmission via a medium(s) of an unlicensed band on a secondary component carrier. The medium(s) previously utilized to provide content to a device(s). The method and apparatus may also provide an indication of the carrier(s) to the device notifying the device that information of the signal is receivable via the carrier on the unlicensed band. The method and apparatus may also send the signal(s) to the device via the carrier enabling the device to obtain timing and frequency information.Type: GrantFiled: July 20, 2011Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventors: Na Wei, Wei Bai, Pengfei Sun, Haiming Wang, Chunyan Gao
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Patent number: 9307236Abstract: A system and method for decoding digital video by processing multiple regions of an image in parallel, even when there are dependencies between rows in the image, are disclosed. The method generally involves decoding multiple rows concurrently, with the start of decoding of a given row being delayed until portions of the other rows on which the given row depends have been decoded. The system generally comprises parallel processors, with one processor typically decoding one row and another processor typically decoding the row above it. In accordance with the present invention, however, any number or type of processors can decode, or perform decoding functions on, the image in parallel.Type: GrantFiled: March 12, 2013Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventor: Alexander MacInnis
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Patent number: 9307491Abstract: A system includes a processor and a memory connected with the processor, the memory to store logic. A DRX module also connects with the processor. The DRX module alternatively provides both a CS DRX cycle length and a PS DRX cycle length observed from network configuration. The processor executes the logic stored in the memory to instruct the DRX module to use a longer of a CS DRX cycle length or a PS DRX cycle length.Type: GrantFiled: March 14, 2013Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventors: Ozgur Ekici, Kavya Budugutta Ravikumar
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Patent number: 9306626Abstract: An apparatus and system are provided for interpreting the gestural path of a first NFC device within NFC range of a second NFC device, or the gestural path of the second NFC device within range of the first NFC device, to determine context for a pre-determined function. The second NFC device includes a plurality of inductive coupling elements, each element configured to output a signal when within range of the first NFC device. A controller module receives the signal from each element when the first NFC device is within range and determines a path of the first NFC device across the second NFC device based on a time difference of receipt at the controller of the signals. The plurality of inductive coupling elements may be active or passive, and interact with the first NFC device in a peer-to-peer mode or read/write mode, depending on the configuration of each device.Type: GrantFiled: May 16, 2012Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventors: Steven D. Hall, Robert W. Brand
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Patent number: 9306542Abstract: An RF front-end with on-chip transmitter/receiver isolation using a gyrator is presented herein. The RF front end is configured to support full-duplex communication and includes a gyrator and a transformer. The gyrator includes two transistors that are configured to isolate the input of a low-noise amplifier (LNA) from the output of a power amplifier (PA). The gyrator is further configured to isolate the output of the PA from the input of the LNA. The gyrator is at least partially or fully capable of being integrated on silicon-based substrate.Type: GrantFiled: June 28, 2013Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventors: Mohyee Mikhemar, Hooman Darabi
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Patent number: 9306057Abstract: A semiconductor device includes a first well and a second well implanted in a semiconductor substrate. The semiconductor device further includes a raised drain structure above and in contact with the second well and separate from the gate structure. The raised drain structure includes a drain connection point above the surface of the second well.Type: GrantFiled: December 27, 2012Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventor: Akira Ito
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Patent number: 9305192Abstract: An NFC-enabled device configured at least in part as an integrated circuit, the integrated circuit including a controller and a plurality of capacitors. The controller is operable to control one or more of the plurality of capacitors to vary an operating parameter of the NFC-enabled device.Type: GrantFiled: June 20, 2013Date of Patent: April 5, 2016Assignee: Broadcom Europe LimitedInventor: Robin Wilson
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Patent number: 9307223Abstract: A method and system are provided in which a video processor may select a 2D video output format or a 3D video output format. The video processor may generate composited video data by combining video data from a video source, and one or both of video data from additional video sources and graphics data from graphics source(s). The video processor may select the order in which such combination is to occur. The video data from the various video sources may comprise one or both of 2D video data and 3D video data. The graphics data from the graphics sources may comprise one or both of 2D graphics data and 3D graphics data. The video processor may perform 2D-to-3D and/or 3D-to-2D format conversion when appropriate to generate the composited video data in accordance with the selected output video format.Type: GrantFiled: August 6, 2015Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventors: Darren Neuman, Jason Herrick, Qinghua Zhao, Christopher Payson
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Patent number: 9306693Abstract: A method of generating timestamp information irrespective of a packet format include generating an egress timestamp corresponding to a time at which a first egress packet associated with a synchronization event is transmitted to a network medium; storing the egress timestamp in a memory based on an egress identifier; and transmitting a second egress packet associated with the synchronization event with the stored egress timestamp being included in the transmitted second egress packet for timing synchronization in the network medium. The method also includes receiving an incoming packet from the network medium; generating an ingress timestamp corresponding to a time at which the incoming packet is received; replacing an error detection field included in the incoming packet with an error detection tag; inserting the ingress timestamp into the error detection tag; and providing the incoming packet with the ingress timestamp to a processor for synchronization of a local clock.Type: GrantFiled: January 3, 2014Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventor: Shr-Jie Tzeng
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Patent number: 9305115Abstract: A method and apparatus for comparing a search key with a plurality of rules of an access control list (ACL) stored in a plurality of content addressable memory (CAM) blocks of a content search system are disclosed. The search key is compared with a plurality of covering prefix entries stored in a covering prefix table, wherein a respective covering prefix entry includes first and second common prefix values. The first common prefix value is shared by all of the rules stored in a first of the CAM blocks, and the second common prefix value is shared by all of the rules stored in a second of the CAM blocks. A bitmap associated with a matching covering prefix entry selectively enables a subset of the CAM blocks for comparison with the search key to determine the highest priority matching rule.Type: GrantFiled: September 28, 2011Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventor: Cristian Estan
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Patent number: 9307258Abstract: Disclosed are various embodiments directed to transcoding a media file in parallel. A media file may be accessed, the media file comprising a bit stream expressing a series of pictures. A first random access point in the bit stream and a second random access point in the bit stream are identified. An input segment of the bit stream is generated, the input segment comprising a starting point, the starting point being the first random access point. One of a plurality of transcoders is selected to transcode the input segment for generating a corresponding output segment, each transcoder being configured to operate concurrently in parallel. The output segment is stored in a memory.Type: GrantFiled: October 30, 2012Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventors: Alexander MacInnis, Hongtao Zhu, Jason Herrick, Brian Schoner, Junlin Li
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Patent number: 9304531Abstract: Disclosed are various embodiments providing processing circuitry that generates an output for each clock cycle of a clock signal using a logic block, the logic block being powered by a supply voltage. The processing circuitry detects whether the output has stabilized at a point in time before the end of a clock cycle of the clock signal, the point in time being based at least upon a delay line. In response to detecting whether the output has stabilized at a point in time, the processing circuitry dynamically adjusts at least one of the supply voltage or the frequency of the clock signal.Type: GrantFiled: November 27, 2012Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventors: David Money Harris, Kwok Ping Hui
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Patent number: 9306733Abstract: A method of synchronizing a time division duplex (TDD) multi-line, multi-carrier data communication system is provided. Synchronization is established using unique pseudo-random bit sequences (PRBS) from a common generator polynomial having different seed values. Due to low correlation of PRBS generated with different seed values, a remote unit can only synchronize to its intended signal effectively mitigating far-end and near-end crosstalk impact of large bandwidth very high speed digital subscriber lines (VDSL).Type: GrantFiled: November 27, 2013Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventors: Kevin Zhifang Du, Brian Robert Wiese, Michael Eugene Locke, Richard Glentworth Greenfield
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Patent number: 9307379Abstract: A system and method supporting the automatic conversion of multimedia information from a first format to a second format in a broadband access gateway and/or network-based server are disclosed. The broadband access gateway and/or network-based server may convert multimedia information that is in a format that an access device is not capable of processing. The gateway and/or server may automatically detect the format incompatibility, and may automatically convert or arrange for conversion of the multimedia information to a format that is compatible with the access device, based upon compatibility information associated with the access device. The conversion may be based upon a set of user-defined quality of service criteria, and may be subject to the control of digital rights management parameters associated with the requested multimedia information.Type: GrantFiled: December 4, 2014Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
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Patent number: 9307573Abstract: Providing link quality intelligence from physical layer to higher protocol layers. The PHY (physical layer) of devices operating within wireless communication systems assess 1 or more operational parameters corresponding to a PHY link that communicatively couples 2 or more devices. These PHYs provide this assessed intelligence to the devices' higher protocol layers so that these higher protocol layers have greater visibility of the operational parameters of the PHY link. These higher protocol layers may use this assessed intelligence to make decisions about how future communication are governed across the PHY links. For example, based on a change of the operational parameter(s), the higher protocol layers may modify the operational parameter(s) for future communications. The higher protocol layers may direct the PHY to assess a particular set of operational parameters, and the higher protocol layers may assess different operational parameters at different times.Type: GrantFiled: April 5, 2010Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventor: Jeyhan Karaoguz
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Patent number: 9305699Abstract: A transformer driver circuit couples to a transformer having a primary winding, a secondary winding, and a transformer tap that is connected to a first voltage source. The primary winding electrically connects at its ends to respective unipolar controllable current sinks that form part of an integrated circuit. The transformer driver circuit operates by each current sink selectively sinking current from the end of the primary winding to which it is connected so as to cause current to flow in the secondary winding in a push-pull fashion. The transformer driver circuit further includes a load electrically connected to the secondary winding and protection circuitry operative to protect the integrated circuit from input levels greater than it can withstand.Type: GrantFiled: March 30, 2015Date of Patent: April 5, 2016Assignee: Broadcom Europe LimitedInventors: Jonathan Ephraim David Hurwitz, Seyed Danesh, Steven Maughan
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Patent number: 9306621Abstract: Methods, systems, and apparatuses are described for reducing the latency in a transceiver. A transceiver includes a high latency communication channel and a low latency communication channel that is configured to be a bypass channel for the high latency communication channel. The low latency communication channel may be utilized when implementing the transceiver is used in low latency applications. By bypassing the high latency communication channel, the high latency that is introduced therein (due to the many stages of de-serialization used to reduce the data rate for digital processing) can be avoided. An increase in data rate is realized when the low latency communication channel is used to pass data. A delay-locked loop (DLL) may be used to phase align the transmitter clock of the transceiver with the receiver clock of the transceiver to compensate for a limited tolerance of phase offset between these clocks.Type: GrantFiled: September 26, 2014Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventors: Heng Zhang, Mehdi Khanpour, Jun Cao, Chang Liu, Afshin Momtaz
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Patent number: 9307029Abstract: Methods, systems and computer program products to implement extensions of the Media Transport Protocol (MTP) are provided herein. The methods include opening a session between an initiator and a responder, exchanging one or more of device and system information and sending one of an operation or event based on control and status information. The operation includes one or more of a dataset, response code, operation parameter and response parameter. The methods also include sending or receiving one of an operation or event based on remote URL information. The operation includes one or more of a dataset, response code, operation parameter and response parameter. These extensions may be in the form of one or more of an operation, an event, a dataset or property code.Type: GrantFiled: January 30, 2008Date of Patent: April 5, 2016Assignee: Broadcom CorporationInventor: Scott Krig
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Patent number: 9306513Abstract: A low noise amplifier for radio frequency integrated circuits having an adaptive input and operating mode selection. The low noise amplifier comprises two inputs which can be operated in different configurations. The operating mode may be chosen in such way that the inputs are used respectively one at the time for single-ended configuration or both inputs are used for differential configuration. Additionally, in single-ended operation, inputs can be matched to different frequencies. The information regarding the operating mode is obtained from an external component. The operating mode to be used may be determined when the device using a particular radio frequency integrated circuit is designed or it can be determined dynamically by the device using the radio frequency integrated circuit.Type: GrantFiled: January 15, 2014Date of Patent: April 5, 2016Assignee: BROADCOM CORPORATIONInventors: Jouni Kristian Kaukovuori, Jonne Riekki, Jari Heikkinen