Patents by Inventor Broadcom Corporation

Broadcom Corporation has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130177105
    Abstract: 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: Application
    Filed: March 4, 2013
    Publication date: July 11, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130176381
    Abstract: Presented herein are systems, methods, and apparatus for displaying pictures. In one embodiment, there is presented a decoder system for decoding video data. The decoder system comprises a port and a transport processor. The port receives packets carrying encoded video data from a plurality of video streams. The transport processor changes a header to encoded video data from at least one of the packets. The header identifies a particular one of the plurality of video streams, wherein the at least one packet is from the particular one of the plurality of video stream.
    Type: Application
    Filed: February 28, 2013
    Publication date: July 11, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: Broadcom Corporation
  • Publication number: 20130178253
    Abstract: Provided is adjusting power output levels of a wireless network device by determining a location information of another wireless network device relative to the wireless network device, the location information including distance range. Based on the location information of the another wireless network device, a power output level is adjusted to optimize the power usage of the wireless network device. The power output level is readjusted based upon a sensing a subsequent signal of the another wireless device, and when a signal strength of the subsequent signal compares favorably to a predetermined threshold level, the location information is refreshed, and the power output level of the wireless network device is readjusted based upon the refreshed location information.
    Type: Application
    Filed: February 28, 2013
    Publication date: July 11, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130176927
    Abstract: A user may simultaneously access sources of multimedia information via multiple wireless networks using a handheld multimedia gateway. A user interface may support the selection of information services that are each provided separate, but possibly overlapping, viewing spaces. Circuitry in the multimedia gateway manages the operation of the multiple wireless communication paths, and enables the display of visual information through two or more display devices. The user may customize the display, the size, and the location within a display of regions in which the information is presented.
    Type: Application
    Filed: March 1, 2013
    Publication date: July 11, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: Broadcom Corporation
  • Publication number: 20130179927
    Abstract: A network module receives network global positioning system (GPS) signals and that transmits a video signal to a remote device that includes time stamps that are based on the network GPS signals. The network module receives a device parameter from the remote device that indicates that local GPS signals are available to the remote device. The network module reduces a frequency of the time stamps when the device parameter indicates that local GPS signals are available to the remote device.
    Type: Application
    Filed: February 26, 2013
    Publication date: July 11, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130178182
    Abstract: According to one exemplary embodiment, a front-end system for processing a composite wideband signal comprises a pre-receiving unit including a multiplexer for separating the composite wideband signal into a plurality of filtered signals. The front-end system further comprises a plurality of discrete frequency band outputs corresponding to the plurality of filtered signals, and a tuner/down-converter coupled to at least one of the plurality of discrete frequency band outputs. In one embodiment, the pre-receiving unit of the front-end system further comprises a second multiplexer for separating at least one of the plurality of filtered signals into a second plurality of filtered signals. In one embodiment, the pre-receiving unit may further comprise a low noise amplifier for processing at least one of the plurality of filtered signals before it is input to the second multiplexer.
    Type: Application
    Filed: March 1, 2013
    Publication date: July 11, 2013
    Applicant: Broadcom Corporation
    Inventor: Broadcom Corporation
  • Publication number: 20130177050
    Abstract: Methods and systems for processing signals in a receiver are disclosed herein and may comprise receiving spatially multiplexed signals via M receive antennas. A plurality of multiple data streams may be separated in the received spatially multiplexed signals to detect MIMO data streams. Each of the MIMO data streams may correspond to a spatially multiplexed input signal. Complex phase and/or amplitude may be estimated for each detected MIMO data streams utilizing (M-1) phase shifters. Complex waveforms, comprising in-phase (I) and quadrature (Q) components for the MIMO data streams within the received spatially multiplexed signals may be processed and the processed complex waveforms may be filtered to generate baseband bandwidth limited signals. Phase and/or amplitude for one or more received spatially multiplexed signals may be adjusted utilizing the estimated complex phase and amplitude. Phase and/or amplitude may be adjusted continuously and/or at discrete intervals.
    Type: Application
    Filed: March 4, 2013
    Publication date: July 11, 2013
    Applicant: Broadcom Corporation
    Inventor: Broadcom Corporation
  • Publication number: 20130177044
    Abstract: Certain aspects of a method and system for achieving space and time diversity gain are disclosed. Aspects of one method may include modifying a generalization code of at least one pilot channel, to measure signal strengths for each of a plurality of received multipath signals. A portion of the plurality of received multipath signals may be combined based on the measured signal strengths. The signal strengths of the plurality of received multipath signals may be measured on a primary pilot channel by assigning its generalization code to zero. The signal strengths of the plurality of received multipath signals on a secondary pilot channel may measured by assigning its generalization code to a non-zero value.
    Type: Application
    Filed: March 5, 2013
    Publication date: July 11, 2013
    Applicant: Broadcom Corporation
    Inventor: Broadcom Corporation
  • Publication number: 20130175980
    Abstract: Disclosed is a method for use by a device to distinguish between a Charging Downstream Port (“CDP”) and a Dedicated Charging Port (“DCP”). The method comprises detecting that the device is attached to a charging port, and determining whether the charging port is the CDP or the DCP without causing a host coupled to the CDP to be able to detect the device if the charging port is the CDP.
    Type: Application
    Filed: January 2, 2013
    Publication date: July 11, 2013
    Applicant: Broadcom Corporation
    Inventor: Broadcom Corporation
  • Publication number: 20130177099
    Abstract: Common-mode termination within communication systems. Termination is implemented with respect to two respective portions of a system: the intentional signaling within a communication system as well as any unintentional signaling which may be coupled into the system. Such unintentional signaling may be incurred in a variety of ways including via interference which may be generated by the system itself or by other devices or components external to the system. In addition, such unintentional signaling made be characterized as common-mode (CM) signaling, in that, it generally affects different respective portions of the system similarly or in the same manner. Various communication systems may include two or more devices implemented therein, that effectuate signaling via one or more communication links there between. Appropriate termination is made with respect to both the intentional and unintentional signaling portion of the system using any of a variety of impedance types (e.g.
    Type: Application
    Filed: November 9, 2012
    Publication date: July 11, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130179756
    Abstract: Selective merge and partial reuse LDPC (Low Density Parity Check) code construction for limited number of layers Belief Propagation (BP) decoding. Multiple LDPC matrices may be generated from a base code, such that multiple/distinct LDPC coded signals may be encoded and/or decoded within a singular communication device. Generally speaking, a first LDPC matrix is modified in accordance with one or more operations thereby generating a second LDPC matrix, and the second LDPC matrix is employed in accordance with encoding an information bit thereby generating an LDPC coded signal (alternatively performed using an LDPC generator matrix corresponding to the LDPC matrix) and/or decoding processing of an LDPC coded signal thereby generating an estimate of an information bit encoded therein. The operations performed on the first LDPC matrix may be any one of, or combination of, selectively merging, deleting, partially re-using one or more sub-matrix rows, and/or partitioning sub-matrix rows.
    Type: Application
    Filed: February 28, 2013
    Publication date: July 11, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130170566
    Abstract: A video processing system includes a video encoder that encodes a video stream into an independent video layer stream and a first dependent video layer stream based on a motion vector data or grayscale and color data.
    Type: Application
    Filed: February 25, 2013
    Publication date: July 4, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130173908
    Abstract: Disclosed are various embodiments for improving hash table utilization. A key corresponding to a data item to be inserted into a hash table can be transformed to improve the entropy of the key space and the resultant hash codes that can generated. Transformation data can be inserted into the key in various ways, which can result in a greater degree of variance in the resultant hash code calculated based upon the transformed key.
    Type: Application
    Filed: September 27, 2012
    Publication date: July 4, 2013
    Applicant: Broadcom Corporation
    Inventor: Broadcom Corporation
  • Publication number: 20130170277
    Abstract: Embodiments provide improved memory bitcells, memory arrays, and memory architectures. In an embodiment, a memory cell comprises a transistor having drain, source, and gate terminals; and a plurality of program nodes, with each of the program nodes charged to a pre-determined voltage and coupled to a respective one of a plurality of bit lines.
    Type: Application
    Filed: February 27, 2013
    Publication date: July 4, 2013
    Applicant: Broadcom Corporation
    Inventor: Broadcom Corporation
  • Publication number: 20130172046
    Abstract: A communication device includes an RF transceiver for communicating first data with at least one of a plurality of remote communication devices via a first protocol and a first frequency band. A millimeter wave transceiver communicates second data with at least one of the plurality of remote communication devices via a second protocol and a second frequency band. A communication control module coordinates the communication of the first data and the second data with the at least one of the plurality of remote communication devices and for establishing a mesh network between the communication device and the plurality of remote communication devices.
    Type: Application
    Filed: February 18, 2013
    Publication date: July 4, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: Broadcom Corporation
  • Publication number: 20130172047
    Abstract: A multiservice communication device includes a plurality of transceivers that wirelessly transceive network data with a corresponding plurality of networks in accordance with a corresponding plurality of network protocols, wherein at least one of the plurality of transceivers further transceives control channel data with a remote management unit contemporaneously with the network data via a logical control channel carried using the corresponding one of the plurality of network protocols, wherein the control channel data includes local control data sent to the management unit and remote control data received from the management unit. A processing module processes the remote control data and generates a least one control signal in response thereto, the at least one control signal for adapting at least one of the plurality of transceivers based on the remote control data.
    Type: Application
    Filed: February 25, 2013
    Publication date: July 4, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: Broadcom Corporation
  • Publication number: 20130174230
    Abstract: Certain embodiments of the invention may be found in a method for establishing a communication pathway for subsequent media exchanges between a television display in a first home and storage that contains media in a second home. The method may comprise securely receiving address correlation information associated with the television display in the first home and securely receiving address correlation information associated with the storage in the second home. Affirmative confirmation may be received and/or stored using the received address correlation information associated with at least one of the television display and the storage. The invention may also include verifying that affirmative information has been stored in association with any subsequent media exchanges.
    Type: Application
    Filed: February 26, 2013
    Publication date: July 4, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130169577
    Abstract: A portable device includes a touch screen that includes a display screen and that generates touch screen data in response to a user's interaction with the touch screen. A processor executes a security application for authenticating the user to the portable device that provides first display data to the touch screen for displaying a security prompt on the display screen. Touch screen data is received from the touch screen in response to the user's interaction with the touch screen and is processed to determine when an authentication shape is recognized as being indicated by the touch screen data. The user is authenticated to the portable device when the authentication shape is recognized as being indicated by the touch screen data.
    Type: Application
    Filed: February 27, 2013
    Publication date: July 4, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130171933
    Abstract: A circuit includes a plurality of integrated circuits or dies having corresponding circuits, the plurality of integrated circuits or dies include a first plurality of integrated circuits or dies having corresponding millimeter wave interfaces and a second plurality of integrated circuits or dies having corresponding inductive interfaces. The first plurality of integrated circuits or dies communicate first signals therebetween via the corresponding millimeter wave interfaces and the second plurality of integrated circuits or dies communicate second signals therebetween via the corresponding inductive interfaces.
    Type: Application
    Filed: February 27, 2013
    Publication date: July 4, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: BROADCOM CORPORATION
  • Publication number: 20130174157
    Abstract: Aspects of a method and system for networking are provided. In this regard, one or more circuits and/or processors in a network adapter of a first network device may determine whether to communicate traffic between virtual machines running on the first network device via a path that resides solely within the first network device, or via a path that comprises a second network device that is external to the first network device. The determination may be based, at least in part, on characteristics of the traffic. The determination may be based, at least in part, on capabilities and/or available resources of the network adapter. The determination may be based, at least in part, on management information exchanged between the one or more circuits and/or processors and one or more of: software running on the first network device, the second network device, and a third network device.
    Type: Application
    Filed: February 25, 2013
    Publication date: July 4, 2013
    Applicant: BROADCOM CORPORATION
    Inventor: Broadcom Corporation