Patents Assigned to Broadcom
  • Patent number: 8719526
    Abstract: A method for securely handling processing of information may include controlling from within a chip, access to at least one portion of an on-chip memory by a plurality of on-chip clients that have pre-determined access to the at least one portion of the on-chip memory. The pre-determined access may be governed by pre-determined access rules that are hard-coded within the chip. At least one of the plurality of on-chip clients may access at least a portion of the on-chip memory. The on-chip memory may be accessible by at least another one of the plurality of on-chip clients. The pre-determined access rules may comprise at least one address range within the on-chip memory corresponding to at least one of the plurality of on-chip clients.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Iue-Shuenn I. Chen, Brian F. Schoner
  • Patent number: 8717137
    Abstract: A system and method utilize a redistribution layer in a flip-chip or wirebond package, which is also used to route signals to bumps, as a layer for the construction of an on-chip inductor or a layer of a multiple-layer on-chip inductor. In one example, the redistribution layer is surrounded by dual-layer passivation to protect it, and the inductor formed thereby, from the environment and isolate it, and the inductor formed thereby, from the metal layer beneath it.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Henry Kuo-Shun Chen, Guang-Jye Shiau, Akira Ito
  • Patent number: 8718083
    Abstract: There is provided a mechanism for controlling a transmission of data in a fragmentation transmission mode. When fragments are transmitted in a fragmentation transmission mode, it is determined whether the fragment frame is received successfully or whether an acknowledgment message for confirming a successful transmission of the fragment frame is received. In case the acknowledgment for the successful transmission of the one fragment frame is not received, or the fragment is frame is not successfully received, the fragmentation transmission mode is maintained and a retransmission of the fragment frame is initiated.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Wei Li, Jorma Lilleberg, Sami-Jukka Hakola, Samuli Turtinen, Timo Koskela, Anna Pantelidou
  • Patent number: 8718183
    Abstract: A system and method for receiving a plurality of pilot tones, generating an analytic signal in a frequency domain, the analytic signal including frequency components that when converted to a time domain include a preamble having a first half containing only non-zero data and a second half containing only zero data, converting the analytic signal from the frequency domain to the time domain, resulting in the preamble having the first half containing only non-zero data and the second half containing only zero data, generating a cyclic prefix based on the second half of the preamble, and attaching the cyclic prefix to the preamble to form a pilot signal, the cyclic prefix including only zero data.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventor: C Ashok Kumar Reddy
  • Patent number: 8718685
    Abstract: A technique for receiving paging information helps a mobile communication device with multiple SIMs to better determine that a call is incoming. Despite the paging indicators for both SIMs arriving in a manner that prevents both the paging indicators from being received, the technique is able to ascertain whether a SIM is being paged, even when the other SIM is currently on the radio interface. As a result, the mobile communication device exhibits an increased ability to detect and alert the user to incoming calls.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Rami Mehio, Jin-Sheng Su
  • Patent number: 8717149
    Abstract: A method of directing an audio signal to an intended user by a remote-control device coupled to an audio/video device is described. The remote-control device sends an instruction to the audio/video device to transmit an audio signal. The remote-control device receives the audio signal and processes the audio signal to generate a directional audio. The directional audio is then routed to an intended user such that the directional audio signal is audible to the intended user, but not to other recipients in the vicinity.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Dasaradha Gude, Gunjan Porwal, Murli Krishna Kocherla
  • Patent number: 8718159
    Abstract: A user equipment (UE) performs a transform domain (DFT) based method to detect the cyclic prefix (CP) length that is being used by a base station for cellular communications. The detected CP length is then used to reduce the amount of time required to complete the synchronization and cell search procedures. In particular, the UE uses the detected CP length information to obtain Cell Identification parameters (NID1, NID2) along with information including a Maximum energy Tap location and a reference signal receive power (RSRP) while completing the synchronization and cell search procedures.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: C Ashok Kumar Reddy, Anupama Lakshmanan
  • Patent number: 8717209
    Abstract: Various pipeline ADCs are disclosed that substantially compensate for interference or distortion that results from imperfections with various ADC modules of the pipeline ADCs. The pipeline ADCs include various ADC stages and various compensation stages that are coupled to the various ADC stages. The various ADC stages convert their corresponding analog inputs from an analog signal domain to a digital signal domain to provide various digital output signals and various analog residual signals to subsequent ADC stages. The various compensation stages compensate for interference or distortion that is impressed onto the various analog residual signals which results from imperfections within previous ADC stages.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Jiangfeng Wu, Tianwei Li, Wenbo Liu, Wei-Ta Shih, Chun-Ying Chen, Lin He, Randall Perlow, Binning Chen, Ramon Gomez
  • Patent number: 8718563
    Abstract: A method for processing a signal with a corresponding noise profile includes analyzing spectral content of the noise profile, filtering at least one noise harmonic within the signal based on the analyzed spectral content, and limiting the filtered signal. The noise profile may include a phase noise profile. The signal may include a sinusoidal signal and/or a noise signal. At least one filter coefficient that is used to filter the at least one noise harmonic may be determined. The filtering may include low pass filtering. The limiting may include hard-limiting of the filtered signal. A phase difference between the limited signal and a reference signal may be detected.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventor: Shervin Moloudi
  • Patent number: 8717962
    Abstract: A method and system for simulcasting multimedia information via a broadband access gateway and a wireless wide area network, is disclosed. An access device such as, for example, a mobile multimedia handset engaged in a call served by a wireless wide area network may migrate to within the coverage area of an associated broadband access gateway with a wireless interface. The wireless wide area network may simulcast call content to the broadband access gateway via a broadband network. A user in the proximity of the broadband access gateway may be notified of the simulcasting of the call, and may elect to continue the call via a WLAN/PAN-enabled wireless handset or other access device that is compatible with the wired and/or wireless interfaces of the broadband access gateway.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Seshadri
  • Patent number: 8716977
    Abstract: A battery includes one or more rechargeable cells, a wireless power coil, a battery charger circuit, and may further include an RFID module. The wireless power coil is operable to generate an AC voltage from a wireless power electromagnetic field. The battery charger circuit is operable to generate a battery charge voltage from the AC voltage in accordance with a battery charge control signal and, when enabled, to charge the one or more rechargeable cells via the battery charge voltage. If the battery further includes the RFID module, it is operable to generate the battery charge control signal and communicate with a wireless power transmitter device.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza Rofougaran, Nambirajan Seshadri, Reinier Hendricus Maria Van Der Lee
  • Patent number: 8718182
    Abstract: A satellite communication system includes a satellite earth station operably coupled to a data network, and a plurality of satellite modems, each satellite modem of the plurality of satellite modems communicating in an upstream and downstream data communication mode with the satellite earth station via at least one servicing satellite.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Dorothy D. Lin, Rocco J. Brescia, Jr., Jen-Chieh Chien, Adel F. Fanous, Alan Gin, Mark R. Dale
  • Patent number: 8718143
    Abstract: Certain aspects of a method and system for optical flow based motion vector estimation for picture rate up-conversion (PRUC) may include generating one or more motion vectors based on extracted picture rate up-conversion (PRUC) data by minimizing a cost function. The cost function may be constrained by any combination of a block matching constraint, a smoothness constraint and a bias constraint. The PRUC data may be extracted from a compressed video data stream while the compressed video data stream is being decompressed by a video decompression engine. The PRUC data may comprise local block motion vectors, block coding modes, quantization levels, quantized residual data and decoded pictures. A plurality of interpolated pictures may be generated based on extracting the PRUC data.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventor: Xuemin Chen
  • Patent number: 8717892
    Abstract: A programmable channel-swap crossbar switch for swapping signal flow from one channel to another within an Ethernet physical layer device (PHY) is presented. The crossbar switch includes two or more programmed multiplexers, each multiplexer configured to receive two or more input signals and to select which one of the input signals to pass to a programmed corresponding channel, such that a first input signal associated with a first channel can be swapped to a second channel as operating conditions necessitate. The crossbar switch can be used for Ethernet communications with various communication speeds, such as 10BaseT, 100BaseT, and Gigabit communications. A crossbar switch can be used in both a transmit path and a receive path. Two crossbar switches may be used in a receive path in order to undo channel swapping for control signal processing. A method of channel-swapping in an Ethernet PHY communications system is also presented.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Mark Berman, Manolito M. Catalasan, Bruce Conway, Kevin T. Chan
  • Patent number: 8718550
    Abstract: Embodiments of an interposer package structure are provided herein. Embodiments include a substrate having first and second opposing surfaces. An IC die electrically coupled to the first surface of the substrate. A plurality of contact members coupled to the first surface of the substrate. An interposer having a plurality of contact elements located on a first surface. Each conductive element coupled to a respective one of the plurality of contact members. The interposer is configured to facilitate wireless communication between the IC die and another device, heat spreading and electromagnetic interference shielding.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Rezaur Rahman Khan
  • Patent number: 8719475
    Abstract: Inter-chip connectivity may be provided in a computing device, which may comprise a USB host and at and at least one USB device embedded within the computing device, based on Universal Serial Bus version 3.0 (USB3.0) interface. In this regard, internal communication of data between the USB host and embedded USB device may be performed via USB3.0 SuperSpeed signals. The USB host and/or the USB3.0 interface may be configured to enable USB3.0 internal communication of data, and to reduce power consumption during the internal communication of data compared to external USB3.0 communications. Configuration of the USB3.0 interface for internal communication of data may comprises modifying and/or adjusting physical (PHY) layer, link layer, and/or protocol layer related parameters, functions, resources, and/or operations. The USB3.0 SuperSpeed signals may be communication using scalable low voltage signaling (SLVS). In this regard, Input/Output (IO) Swing may be set based on loopback training sequence.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Kenneth Ma, Seong-Ho Lee
  • Patent number: 8718589
    Abstract: Method and apparatuses are disclosed to substantially compensate for various unwanted interferences and/or distortions within a communications receiver. Each of these apparatuses and methods estimate the various unwanted interferences and/or distortions within the communications receiver. Each of these apparatuses and methods remove the estimates of the various unwanted interferences and/or distortions within the communications receiver from one or more communications signals within the communications receiver to substantially compensate for the various unwanted interferences and/or distortions.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Ramon Alejandro Gomez, Bruce J. Currivan, Massimo Brandolini, Young Shin, Francesco Gatta, Hanli Zou, Loke Kun Tan, Lin He, Thomas Joseph Kolze, Leonard Dauphinee, Robindra Joshi, Binning Chen
  • Patent number: 8717932
    Abstract: Aspects of a method and system for determining and securing proximity information over a network are provided. In this regard, data transmitted over a network may be time-stamped upon entering and/or exiting a network node. By taking the total time to travel between two network nodes and subtracting out any latency internal to one or more intermediate nodes, the time to traverse the physical links (the propagation time) between the two network nodes may be determined. Accordingly, if the speed at which data propagates over each link of the network is known, then a distance from the source node to the destination node may be determined. Additionally, aspects of the invention may enable one or more of authentication, validation, and encryption of timing and/or proximity information transmitted over a network.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Zheng Qi, Yongbum Kim
  • Patent number: 8718054
    Abstract: A bridge routing module can be incorporated into a closed network fabric, such as a vehicular network. The bridge routing module includes an interface circuit to be coupled to other elements of the closed network fabric, for example other bridge routing modules or switch modules. The bridge routing module includes memory to store information associating packet content types with packet routing parameters, among other things. A processing module included in the bridge routing module analyzes packets to identify the type of content carried by the packets, and determines packet routing parameters based on the packet's content type. Ingress and egress of the packet are controlled in accordance with the packet routing parameters determined by the processing module.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael W. Diab, Nicholas Ilyadis
  • Patent number: 8719569
    Abstract: Techniques are provided for users to authenticate themselves to components in a system. The users may securely and efficiently enter credentials into the components. These credentials may be provided to a server in the system with strong authentication that the credentials originate from secure components. The server may then automatically build a network by securely distributing keys to each secure component to which a user presented credentials.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Mark Buer, Ed Frank, Nambi Seshardi