Patents Assigned to Broadcom
  • Publication number: 20140281099
    Abstract: This application relates to systems and methods for controlling the flow of transport layer packets (TLP) in a peripheral component interconnect express (PCIe)-based environment. In an exemplary embodiment, an arbiter in a PCIe device determines the amount of data, if any, that should be expected in response to transmission of a particular TLP. If a receive buffer of the PCIe device has enough available space for storing the expected data, the arbiter permits transmission of the particular TLP. If the receive buffer does not have enough available space for storing the expected data, the arbiter suppresses transmission of the particular TLP until the receive buffer has enough available space. The exemplary embodiment may improve data flow through the PCIe environment by reducing fragmented transfers of data.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Broadcom Corporation
    Inventors: Refeal AVEZ, Danny Kopelev
  • Publication number: 20140269847
    Abstract: Techniques are described herein that perform symbol-level equalization using multiple spreading factors. The techniques may allow for symbol-level equalization to be performed between a serving cell and a non-serving cell(s) for WCDMA and HSDPA protocols, for example. A serving cell operates using a first spreading factor, and a non-serving cell(s) operates using a second, different spreading factor. Data communications received from the serving cell and the non-serving cell(s) may be aligned using extended channel representation(s) of the non-serving cell(s) and/or scrambling code offset(s). The aligned communications may be equalized using symbol-level equalization to obtain a joint linear minimum mean square error between the serving cell and the non-serving cell(s).
    Type: Application
    Filed: April 1, 2013
    Publication date: September 18, 2014
    Applicant: Broadcom Corporation
    Inventor: Fu-Hsuan Chiu
  • Publication number: 20140278417
    Abstract: Methods, systems, and apparatuses are described for performing speaker-identification-assisted speech processing. In accordance with certain embodiments, a communication device includes speaker identification (SID) logic that is configured to identify a user of the communication device and/or the identity of a far-end speaker participating in a voice call with a user of the communication device. Knowledge of the identity of the user and/or far-end speaker is then used to improve the performance of one or more speech processing algorithms implemented on the communication device.
    Type: Application
    Filed: August 13, 2013
    Publication date: September 18, 2014
    Applicant: Broadcom Corporation
    Inventors: Juin-Hwey Chen, Robert W. Zopf, Bengt J. Borgstrom, Elias Nemer, Ashutosh Pandey, Jes Thyssen
  • Publication number: 20140266099
    Abstract: A circuit for a charge-pump low-dropout (LDO) regulator may include a comparator circuit configured to control a pass transistor based on an error signal. A pre-charge path may be provided between a supply voltage and an output node of the regulator. The pre-charge path may be configured to allow charging of an output capacitor to a pre-charge voltage during a pre-charge operation mode. The output capacitor may be coupled between the output node of the regulator and ground potential. The pass transistor may be configured to allow charging of the output capacitor during an LDO mode of operation. A charge-pump circuit may be configured to provide a current for charging the output capacitor during the LDO mode of operation.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Broadcom Corporation
    Inventors: I-Ning Ku, Hui Zheng, Xicheng Jiang
  • Publication number: 20140282737
    Abstract: Certain embodiments of the invention for presenting available media for selection and playback on a television display may comprise detecting available media and constructing at least one display indicating the availability of the detected available media at a plurality of different storage locations. An indication of the different storage locations for the detected available media may be presented in the constructed display in a text format, a graphic format and/or an audio format. One or more content categories associated with the detected available media may be identified and the indication of the different storage locations may be associated with one or more of the content categories. Providers of media and/or storage devices at the different storage locations may be queried for available media and the media acquired accordingly. The constructed display may be represented as a graphical user interface (GUI) and displayed on the television screen.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, James Bennett
  • Publication number: 20140278397
    Abstract: Methods, systems, and apparatuses are described for performing speaker-identification-assisted speech processing in an uplink path of a communication device. In accordance with certain embodiments, a communication device includes speaker identification (SID) logic that is configured to identify the identity of a near-end speaker. Knowledge of the identity of the near-end speaker is then used to improve the performance of one or more uplink speech processing algorithms implemented on the communication device.
    Type: Application
    Filed: October 31, 2013
    Publication date: September 18, 2014
    Applicant: Broadcom Corporation
    Inventors: Juin-Hwey Chen, Jes Thyssen, Elias Nemer, Bengt J. Borgstrom, Ashutosh Pandey, Robert W. Zopf
  • Publication number: 20140266365
    Abstract: A circuit for a low latency, low area, and low power flip-flop may include a pass-gate multiplexer that can selectively allow one of input or test data to enter a master cell when a clock signal is low. The master cell may include a first inverter cross-coupled to a second inverter, and may receive the input or test data and may latch and provide at an input node of the slave cell, an inverted input data or the test data, upon a transition of the clock signal to a high state. The slave cell may include a second clock pass-gate and a third inverter that is cross-coupled to a fourth inverter, and may receive the inverted input data or the test data and may latch and provide at an output node, the input data or the test data, upon the transition of the clock signal to a high state.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Paul Penzes, Ardavan Moassessi
  • Publication number: 20140270226
    Abstract: Techniques described herein are directed to the enhancement of spectral features of an audio signal via adaptive modulation filtering. The adaptive modulation filtering process is based on observed modulation envelope autocorrelation coefficients obtained from the audio signal. The modulation envelope autocorrelation coefficients are used to determine parameters of an adaptive filter configured to filter the spectral features of the audio signal to provide filtered spectral features. The parameters are updated based on the observed modulation envelope autocorrelation coefficients to adapt to changing acoustic conditions, such as signal-to-noise ratio (SNR) or reverberation time. Accordingly, such acoustic conditions are not required to be estimated explicitly. Techniques described herein also allow for the estimation of useful side information, e.g.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Broadcom Corporation
    Inventor: Bengt J. Borgstrom
  • Patent number: 8838847
    Abstract: A wireless device has a modem module and an application engine module. A communication and memory sharing interface connects the modem module to the application engine module. The application engine module has an application layer component for providing application layer processing for the wireless device and a modem component for providing, in combination with the modem module, modem processing for the wireless device. The wireless device has a memory and a memory interface for connecting the application engine module directly to the memory.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Mika Antero Koikkalainen
  • Patent number: 8837321
    Abstract: A network sends downlink a neighbor frequency list for redirection (with at least one neighbor frequency) for measurement, for example event-triggered measurement. For each frequency in the list which a user equipment UE finds to satisfy one or more criteria, for example event-triggering criteria, the idle-state or semi-idle-state UE then takes a measurement of the neighbor frequency and checks whether the measurement satisfies reporting criteria. The UE sends to its serving cell an indication of the neighbor frequency or frequencies whose measurement meets the reporting criteria, without reporting the measurement, such as in a RRC Connection Request message. The serving cell then redirects the UE to establish a connection on a target frequency selected from the indicated neighbor frequencies, and this redirect may be in a RRC Connection Reject message.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Tero Henttonen, Brian Alexander Martin, Keiichi Kubota, Wei Bai, Samuli Turtinen, Jari Isokangas
  • Patent number: 8837454
    Abstract: A system and method is presented to support simultaneous connections to multiple network connections. For example, a wireless radio of a communication device may be used to transmit or receive data from two network channels, each associated with a network connection. The communication device may allocate a first set of resources from the wireless radio to be used to communicate across a first network channel and allocate a second set of communication resources from the wireless radio to be used to simultaneously communicate a cross a second network channel.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Gireesh Hegde
  • Patent number: 8838033
    Abstract: Methods and systems for processing a signal with a corresponding noise profile are disclosed. Aspects of the method may comprise analyzing spectral content of the noise profile. At least one noise harmonic within the signal may be filtered based on said analyzed spectral content. The filtered signal may be amplified. The noise profile may comprise a phase noise profile. The signal may comprise at least one of a sinusoidal signal and 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 comprise low pass filtering. The signal may be modulated prior to filtering. The amplifying may comprise buffering. A non-linearity characteristic of the signal may be determined and a noise harmonic may be low-pass filtered within the signal based on the determined non-linearity characteristic.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Shervin Moloudi
  • Patent number: 8838145
    Abstract: A client device transmits a GNSS address to gain navigation information such as map data from a global positioning group support server. The global positioning group support server may provide navigation information of global positioning groups in the vicinity of the client device based on the received GNSS address. The GNSS address of the client device may be an inherent GNSS address or a GNSS address of a neighboring client device. Client devices are registered and divided into global positioning groups at a global positioning group support server based on corresponding GNSS addresses. A particular client device may be added or removed to or from a given global positioning group. Uni- and bi-directional association tracking within a determined time window is enabled based on corresponding GNSS addresses. Phantom GNSS moving is enabled via the association tracking.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: James Bennett, Jeyhan Karaoguz
  • Patent number: 8837102
    Abstract: A circuit comprising a first transistor group configured to electrically isolate, at least in part, a second transistor group from an input voltage; the second transistor group configured to provide voltage protection to a third transistor group; and the third transistor group configured to switch on and off.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Jeffrey Jen Hui Chin, David Seng Poh Ho
  • Patent number: 8836574
    Abstract: An integrated radar system includes a processing module and a radar device. The radar device includes an antenna module, a configurable shaping module, and a configurable transceiver module. The processing module generates an outbound signal and a control signal to configure the integrated radar system. The configured transceiver module converts the outbound signal into an outbound wireless signal. The configured shaping module shapes the outbound wireless signal into a shaped signal. The antenna module transmits the shaped signal and then receives an inbound radar signal. The configured shaping module shapes the inbound radar signal into an inbound wireless signal. The configured transceiver module converts the inbound wireless signal into an inbound symbol stream. The processing module determines location information regarding an object based on the inbound symbol stream.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Alfred Grau Besoli, Nicolaos G. Alexopoulos, Jesus Alfonso Castaneda
  • Patent number: 8838525
    Abstract: In one embodiment, a method for communicating data is provided. The method includes defining a data transmission unit (DTU) to be sent in an xDSL data stream, defining a retransmit container as a time slot that corresponds to the DTU, maintaining, in a retransmit container, a copy of the DTU and an index corresponding to the retransmit container, the retransmit container being maintained at the second device independently of the first device, transmitting the DTU in the xDSL data stream, determining whether the DTU should be retransmitted, and if the DTU should be retransmitted: identifying the DTU by the retransmit container and retransmitting a copy of the DTU as identified by the retransmit container when the DTU reaches a predetermined position in the retransmission buffer.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Benoit Christiaens, Miguel Peeters, Raphael Cassiers
  • Patent number: 8838403
    Abstract: A multi-magnetometer device comprises at least two z-axis aligned and physically rotated magnetometer triads utilized for measuring corresponding earth's magnetic field. The magnetic field measurements are utilized to measure rotation measurements of a single orthogonal axis along the 360 degrees of the complete circle without user's assistance and/or magnetometer movement for magnetometer calibration. The multi-magnetometer device may compute its magnetic heading utilizing the magnetic field measurements if no magnetic perturbations are detected. When magnetic perturbations are detected, a perturbation mitigation process may be performed. The rotation measurements may be generated by selectively combining the magnetic field measurements. Hard-iron components are determined utilizing the rotation measurements, and are removed from the magnetic field measurements.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Manuel del Castillo, Steve Malkos
  • Patent number: 8838912
    Abstract: A disclosed embodiment is an interruptible write block comprising a primary register having an input coupled to an input of the interruptible write block, a secondary register having an input selectably coupled to an output of the primary register and to an output of the secondary register through an interrupt circuit. The interrupt circuit is utilized to interrupt flow of new data from the primary register to the secondary register during an interrupt of a write operation, such that upon resumption of the write operation the secondary register contains valid data. A method of utilizing an interruptible write block during a write operation comprises loading data into a primary register, interrupting the write operation to perform one or more other operations, loading the data into a secondary register while loading new data into the primary register, and resuming the write operation using valid data from the secondary register.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Christopher Gronlund
  • Patent number: 8837635
    Abstract: Embodiments provide systems and methods to dynamically control a radio frequency (RF) transmitter based on monitored error vector magnitude (EVM) performance. Embodiments are enabled by a feedback path that allows estimating the EVM at the output of the transmitter and controlling the transmitter, including the power amplifier (PA), accordingly. As such, the transmitter (and the PA) can be operated as close as possible to the ideal operating point that meets, based on actual conditions, a specified EVM performance and desired output power. By doing so, the overall power consumption of the transmitter is reduced.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Robert Lorenz, Djordje Tujkovic
  • Patent number: 8838129
    Abstract: 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: Grant
    Filed: April 17, 2013
    Date of Patent: September 16, 2014
    Assignee: Broadcom Corporation
    Inventors: Charles Abraham, Xuemin Shermin Chen, Wael William Diab, Vinko Erceg, Victor T. Hou, Jeyhan Karaoguz, Mark Kent