Patents Assigned to Broadcom
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Patent number: 8891400Abstract: A method, apparatus and computer program product are provided in order to provide for periodic measurements related to a frequency identified by the network, such as a downlink frequency associated with a secondary uplink frequency. In the context of a method, a message is caused to be transmitted to a mobile terminal indicating that the mobile terminal is to perform periodic measurements in relation to a secondary uplink frequency. Following the performance of the periodic measurements by the mobile terminal, the method also includes receiving an indication of the periodic measurements in relation to the secondary uplink frequency that have been performed by the mobile terminal.Type: GrantFiled: January 7, 2014Date of Patent: November 18, 2014Assignee: Broadcom CorporationInventors: Brian Alexander Martin, Keiichi Kubota
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Patent number: 8891699Abstract: Characterization and assessment of communication channel average group delay variation. A signal having repeated signal components therein is received by a communication device, and that signal undergoes appropriate processing to determine respective amplitude and phase of a number of frequency bins. The phase difference from bin to bin (including respecting unwrapping, and proper normalization) is used to determine the group delay of a communication channel, or portion thereof, as a function of frequency. Multiple respective group delay measurements may be averaged to generate a wideband group delay of the communication channel as a function of frequency. Overlap between different respective band-edge portions of the communication channel may assist in generating a seamless continuous wideband spectrum estimation for use in determining the wideband group delay of the communication channel.Type: GrantFiled: March 23, 2012Date of Patent: November 18, 2014Assignee: Broadcom CorporationInventors: Bruce J. Currivan, Thomas J. Kolze, Jonathan S. Min, Victor T. Hou
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Patent number: 8891709Abstract: A method and apparatus is disclosed to compensate for interference and/or distortion impressed onto a transmitted communication signal in the presence of one or more time-varying noise and/or interference conditions. A communications receiver includes a noise analyzer to characterize the composition of the interference and/or the distortion and produce a selection signal indicating the composition of the interference and/or the distortion. The communications receiver selects at least one set of equalization coefficients and/or updates at least one parameter of a least-squares algorithm or the suitable equivalent algorithm to compensate for the interference and/or the distortion impressed onto a transmitted communication signal in the presence of a particular time-varying noise and/or interference condition.Type: GrantFiled: April 19, 2012Date of Patent: November 18, 2014Assignee: Broadcom CorporationInventors: Thomas Joseph Kolze, Bruce J. Currivan
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Patent number: 8892177Abstract: Various embodiments of the present disclosure include a communication device having first circuitry and second circuitry. The first circuitry is capable of operating in a plurality of modes. The second circuitry is capable of determining whether to transition operation of the first circuitry from a sleep mode to a non-sleep mode based at least in part on whether a non-informational characteristic of a received communication signal matches a non-informational characteristic of a particular one of a plurality of communication protocols.Type: GrantFiled: September 9, 2013Date of Patent: November 18, 2014Assignee: Broadcom CorporationInventors: Arya Behzad, Ahmadreza Rofougaran
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Patent number: 8891561Abstract: Systems, devices, and methods of implementing 50 Gb/s Ethernet using serializer/deserializer lanes are disclosed. One such device includes circuitry operable to provide a media access control (MAC) interface. The MAC interface is associated with a port having a 50 Gb/s link rate. The device also includes circuitry operable to generate Ethernet frames from data received at the MAC interface and circuitry operable to distribute the Ethernet frames across a group of serializer/deserializer (SERDES) lanes associated with the port, the group having size N. The device also includes circuitry operable to transmit the distributed Ethernet frames on each of the SERDES lanes at a 50/N Gb/s rate.Type: GrantFiled: January 29, 2013Date of Patent: November 18, 2014Assignee: Broadcom CorporationInventors: Burhan Masood, Howard Frazier
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Patent number: 8892056Abstract: 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: December 26, 2013Date of Patent: November 18, 2014Assignee: Broadcom CorporationInventors: Saishankar Nandagopalan, Christopher J. Hansen
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Patent number: 8893125Abstract: A system for an open virtualization format includes a virtualization platform to run a virtual machine and a network infrastructure to accommodate the virtualization platform. The network infrastructure includes a deployed network port profile associated with the virtual machine.Type: GrantFiled: December 13, 2011Date of Patent: November 18, 2014Assignee: Broadcom CorporationInventor: Hemal Shah
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Publication number: 20140337485Abstract: An apparatus and a system are provided to proxy one or more media signals between at least one local client device and at least one remote client device. For instance, the apparatus can include a first network interface, a rate controller and media transcoder, and a second network interface. The first network interface receives a plurality of media signals over a first communication network, where the plurality of media signals is encoded into at least one codec format. The rate controller and media transcoder transcodes one or more of the plurality of media signals into a different codec format based on channel and processing capabilities associated with one or more local client devices and one or more control messages. The second network interface transmits the one or more of the transcoded plurality of media signals to a respective plurality of remote client devices over a second communication network.Type: ApplicationFiled: July 30, 2014Publication date: November 13, 2014Applicant: Broadcom CorporationInventors: Gordon Yong LI, Xuemin CHEN
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Publication number: 20140335868Abstract: A method for a user equipment (UE) to manage measurement event trigger criteria including determining a first pathloss for a serving cell and a second pathloss for at least one neighbor cell; adjusting the measurement event trigger criteria based on at least one of the determined first pathloss, the determined second pathloss and a weight factor X received from the serving cell; and triggering a measurement event based on the adjusted measurement event trigger criteria.Type: ApplicationFiled: May 9, 2014Publication date: November 13, 2014Applicant: Broadcom CorporationInventors: Keiichi KUBOTA, Brian MARTIN, Christopher CALLENDER
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Publication number: 20140337903Abstract: 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: ApplicationFiled: August 2, 2013Publication date: November 13, 2014Applicant: BROADCOM CORPORATIONInventors: Hongtao Zhu, Alexander Garland Macinnis
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Publication number: 20140334319Abstract: A user equipment (UE) is configured with a first configuration for reporting measurement feedback information according to a first reporting cycle using a first set of parameters, and a second configuration for reporting measurement feedback information according to a second reporting cycle using a second set of parameters. The UE switches between the first cycle and the second cycle for reporting for example CQI based on for example comparing a data or a channel measurement against a predefined threshold. In various embodiments the second configuration is fixed, or results in no CQI reporting, or is variable based on a previous cycle or CQI level, or is event-based. In another embodiment, the network commands the UE to switch. The end result is that control signalling overhead can be reduced when appropriate by reducing the number of CQI reports that are sent uplink.Type: ApplicationFiled: May 8, 2014Publication date: November 13, 2014Applicant: Broadcom CorporationInventors: Keiichi KUBOTA, Brian Alexander MARTIN, Himanshu KUMAR
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Publication number: 20140334500Abstract: A communication system includes a supervisory node (e.g., a headend) and one or more remote nodes (e.g., cable modems). The supervisory node or a remote node monitors a characteristic associated with the communication system. Remote node transmits an upstream communication among a plurality of physical upstream channels based on the characteristic. The average transmit power used to transmit the upstream communication among the plurality of physical upstream channels is no greater than the average transmit power that would be necessary to transmit the upstream communication using a single physical upstream channel at a lower data rate.Type: ApplicationFiled: May 12, 2014Publication date: November 13, 2014Applicant: BROADCOM CORPORATIONInventor: Thomas J. Kolze
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Publication number: 20140333353Abstract: Disclosed are various embodiments for a clock and data recovery (CDR) system. The CDR system comprises a transition detection stage and a clock recovery stage. The transition detection stage is responsible for receiving the data signal and detecting whether a transition exists in the data signal by oversampling the data signal. The clock recovery stage generates a recovery clock based on whether there is a transition in the data signal.Type: ApplicationFiled: May 22, 2013Publication date: November 13, 2014Applicant: Broadcom CorporationInventor: Dae Woon Kang
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Publication number: 20140337682Abstract: A communication device is configured to encode information bits using one or more forward error correction (FEC) codes and/or error correction codes (ECCs) to generate different codewords (e.g., codeword groups having different lengths, based on different code rates, etc.). The device generates a combined codeword using different sized codewords (e.g., long, medium, and short) by filling fills long codewords completely if possible, then filling medium codewords completely if possible with the remaining message bits (if any), and filling short codewords completely if possible plus another additional short codeword with the remaining message bits (if any). If the total number of short (or medium and short) codeword parity bits is greater than or equal to the number of medium (or long) codeword parity bits, then the device increments the number of medium (or long) codewords by one and setting the number of short (or medium and short) codewords to zero.Type: ApplicationFiled: May 8, 2014Publication date: November 13, 2014Applicant: BROADCOM CORPORATIONInventor: Richard Stephen Prodan
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Publication number: 20140337897Abstract: Devices and methods for receiving and/or processing digital data. The devices may include a satellite modem, a transport module, and/or a processing module. The satellite modem, the transport module and/or the processing module may be formed on a single semiconductor substrate.Type: ApplicationFiled: May 16, 2014Publication date: November 13, 2014Applicant: Broadcom CorporationInventors: Eric Chan, Sack Lee Chan, Hiroshi Suzuki, Prijesh Patel
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Publication number: 20140335845Abstract: The present disclosure is directed to a system and method for transitioning small cell base stations out of a discontinuous transmission (DTX) mode. The system and method comprise monitoring at the small cell base stations uplink transmissions from user terminals (UTs) to a macrocell base station while the small cell base stations are in the DTX mode. The small cell base stations can use the monitored uplink transmissions to, for example, measure received power levels from the UTs and/or measure uplink path losses between the small cell base stations and the UTs. The small cell base stations can report these measured values back to the macrocell base station through a backhaul network. Based on these measurements, the macrocell base station can determine which small cell base stations can support which UTs without transitioning the small cell base stations out of the DTX mode.Type: ApplicationFiled: May 9, 2014Publication date: November 13, 2014Applicant: Broadcom CorporationInventors: Sam ALEX, Louay JALLOUL
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Patent number: 8886922Abstract: Separate power island for high performance processor. A multi-processor design is presented in which each of the processors is implemented in separately powered portions of a circuitry (e.g., an integrated circuit). One of the processors can be a main application processor, and another of the processors can be a baseband processor. In addition, the each of the processors can be implemented using different types of circuitry (e.g., one of the processors [such as the main application processor] is implemented using higher performance/higher leakage circuitry that another of the processors [such as the baseband processor]). One of the processors (e.g., main application processor) can be powered down when not needed thereby providing energy/power conservation which can be vital is handheld communication device applications such as wireless handheld communication devices.Type: GrantFiled: March 18, 2011Date of Patent: November 11, 2014Assignee: Broadcom CorporationInventors: Anatoly Gelman, Kiran Puttegowda
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Patent number: 8884704Abstract: Embodiments of the present invention enable a feedback-based VCO linearization technique. Embodiments include a frequency locked loop formed by feeding back a VCO's output into the VCO's input in negative phase by means of a frequency-to-voltage (F/V) converter. Embodiments enable constant VCO gain over a wide input tuning range and across PVT variations. Further, embodiments can be nested within a PLL, for example, with negligible area and power consumption overhead.Type: GrantFiled: September 20, 2011Date of Patent: November 11, 2014Assignee: Broadcom CorporationInventors: Michael Youssef, Ahmad Mirzaei, Hooman Darabi
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Patent number: 8883605Abstract: According to an exemplary embodiment, a method for fabricating a decoupling composite capacitor in a wafer that includes a dielectric region overlying a substrate includes forming a through-wafer via in the dielectric region and the substrate. The through-wafer via includes a through-wafer via insulator covering a sidewall and a bottom of a through-wafer via opening and a through-wafer via conductor covering the through-wafer via insulator. The method further includes thinning the substrate, forming a substrate backside insulator, forming an opening in the substrate backside insulator to expose the through-wafer via conductor, and forming a backside conductor on the through-wafer via conductor, such that the substrate backside conductor extends over the substrate backside insulator, thereby forming the decoupling composite capacitor.Type: GrantFiled: July 26, 2013Date of Patent: November 11, 2014Assignee: Broadcom CorporationInventors: Xiangdong Chen, Wei Xia
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Patent number: 8886218Abstract: A wireless detecting device may be operable to receive one or more signals from a corresponding one or more wireless devices within range of the wireless detecting device. A list of the corresponding one or more wireless devices within range of the wireless detecting device may be displayed on the wireless detecting device. Based on the received one or more signals from the corresponding one or more wireless devices, distance, range or geographic location of the one or more wireless devices, relative to the wireless detecting device may be indicated on the wireless detecting device.Type: GrantFiled: February 11, 2013Date of Patent: November 11, 2014Assignee: Broadcom CorporationInventor: Jeyhan Karaoguz