Patents Assigned to Broadcom Corporation
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Patent number: 8350755Abstract: A communication device within a GNSS group propagates GNSS assistance data to one or more other communication devices in the GNSS group utilizing direct device-to-device connections. The GNSS assistance data comprises ephemeris received from one or more GNSS satellites and/or predicted ephemeris. As a source device, the communication device generates, and/or acquires from other resources such as a remote location server, the predicted ephemeris. As a destination device, the communication device receives existing GNSS assistance data from a source device and/or other communication devices in the GNSS group. A GNSS position for the communication device and corresponding time information are used to refresh the received GNSS assistance data.Type: GrantFiled: March 26, 2010Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Charles Abraham, Mark Buer, David Garrett, Jeyhan Karaoguz, David Albert Lundgren, David Murray
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Patent number: 8351556Abstract: Methods and systems for processing signals in a receiver are disclosed herein and may include updating a plurality of filter taps utilizing at least one channel response vector and at least one correlation vector, for a plurality of received clusters, based on initialized values related to the at least one channel response vector and the at least one correlation vector. At least a portion of the received signal clusters may be filtered utilizing at least a portion of the updated plurality of filter taps. The update may be repeated whenever a specified signal-to-noise ratio (SNR) for the received signal clusters is reached. The initialized values may be updated during a plurality of iterations, and the update may be repeated whenever a specified number of the plurality of iterations is reached.Type: GrantFiled: July 28, 2011Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Mark Kent, Uri Landau, Severine Catreux-Erceg, Vinko Erceg, Ning Kong, Pieter Roux
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Patent number: 8351855Abstract: Disclosed herein are systems, apparatuses, and methods for providing a proximity coupling without Ohmic contact. Such a system includes a plurality of wireless-enabled components (WECs) that are wirelessly coupled to each other. Each WEC includes a metal-based element, a substrate, and a semiconductor layer that separates the metal-based element from the substrate. A signal is configured to be transmitted via a proximity coupling (e.g., a magnetic coupling, an electric coupling, and/or an electromagnetic coupling) between the metal-based element and the substrate without an Ohmic contact between the metal-based element and the substrate. In an example, a first subset of the plurality of the WECs is co-located on a first chip, and a second subset of the plurality of the WECs is co-located on a second chip. The first chip and the second chip may be located in a single device or in separate devices.Type: GrantFiled: September 8, 2010Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Jesus Alfonso Castaneda, Arya Reza Behzad, Michael Boers, Ahmadreza Reza Rofougaran, Sam Ziqun Zhao
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Patent number: 8351560Abstract: A system and method is provided for phase interpolator based transmission clock control. The system includes a transmitter having a phase interpolator coupled to a master timing generator and a transmission module. The phase interpolator is also coupled to a receiver interpolator control module and/or an external interpolator control module. When the system is operating in repeat mode, the transmitter phase interpolator receives a control signal from a receiver interpolator control module. The transmitter phase interpolator uses the signal to synchronize the transmission clock to the sampling clock. When the system is operating in test mode, a user defines a transmission data profile in an external interpolator control module. The external interpolator control module generates a control signal based on the profile. The transmitter phase interpolator uses the signal to generate a transmission clock that is used by the transmission module to generate a data stream having the desired profile.Type: GrantFiled: September 21, 2011Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Aaron W. Buchwald, Michael Le, Hui Wang, Howard A. Baumer, Pieter Vorenkamp
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Patent number: 8351399Abstract: A method for multiple input multiple output wireless communication begins by determining protocols of wireless communication devices within a proximal region. The method continues by determining whether the protocols of the wireless communication devices within the proximal region are of a like protocol. The method continues by determining the number of transmit antennas. The method continues, when the protocols of the wireless communication devices within the proximal region are of the like protocol, formatting a preamble of a frame of the wireless communication utilizing at least one of cyclic shifting of symbols, cyclic shifting of tones, sparse tone allocation, and sparse symbol allocation based on the number of transmit antennas.Type: GrantFiled: July 1, 2010Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Christopher J. Hansen, Jason A. Trachewsky, R. Tushar Moorti, Matthew J. Fischer, Christopher Young
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Patent number: 8351397Abstract: Aspects of a method and system for detecting enhanced relative grants in a wireless communications system may include determining one or more signed signal power levels, wherein the one or more signed signal power levels may be positive E-RGCH signal levels or negative E-HICH signal levels. A probability density function may be estimated from the determined one or more signed signal power levels, and a decision threshold based on the estimated probability density function may be set. The probability density function may be estimated based on symmetry of the probability density function. The decision threshold may be set to achieve a desired probability of false positive detections. The decision threshold may be used to distinguish a received HOLD signal from a received DOWN signal for an E-RGCH channel, or to distinguish a received DTX signal from a received ACK signal for an E-HICH channel.Type: GrantFiled: January 13, 2010Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventor: Jamie Menjay Lin
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Patent number: 8350630Abstract: Aspects of a method and system for LOGEN based on harmonics using microstrip techniques may include generating an output local oscillator signal from a non-sinusoidal input local oscillator signal by filtering the non-sinusoidal input local oscillator signal via a microstrip filter, wherein the output local oscillator signal may comprise a fundamental frequency that may be given by a harmonic frequency of the non-sinusoidal input local oscillator signal. The microstrip filter may be a programmable bandpass filter or a programmable stopband filter. The microstrip filter may be tuned to the harmonic frequency. The microstrip filter may be configured by adjusting a center frequency via a capacitance and/or an inductance. The bandwidth of the microstrip filter may be configured. The microstrip filter may be a programmable coplanar waveguide filter, and its center frequency may be configured via an inductance and/or a capacitance.Type: GrantFiled: September 28, 2007Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran
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Patent number: 8351853Abstract: Methods and systems for a configurable finite impulse response (FIR) filter using a transmission line as a delay line are disclosed and may include selectively coupling one or more taps of a multi-tap transmission line to configure delays for one or more finite impulse response (FIR) filters to enable transmission and/or reception of signals. The delays may be configured based on a location of the one or more selectively coupled taps on the multi-tap transmission line. The FIR filters, which may include one or more stages, may be impedance matched to the selectively coupled taps. The multi-tap transmission line may be integrated on the chip, or a package to which the chip is coupled. The multi-tap transmission line may include a microstrip structure or a coplanar waveguide structure, and may include ferromagnetic material. The distortion of signals in the chip may be compensated utilizing the FIR filters.Type: GrantFiled: March 5, 2012Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran
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Patent number: 8350865Abstract: A method and system for efficiently organizing data in memory is provided. Exemplary aspects of the invention may include storing linear data and block data in more than one DRAM device and accessing the data with one read/write access cycle. Common control signals may be used to control the DRAM devices and the address lines used to address each DRAM device may be independent from one another. The data read from the DRAM devices may be reordered to make the data more suitable for processing by applications.Type: GrantFiled: January 25, 2007Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Brian Schoner, Darren Neuman
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Patent number: 8350967Abstract: A method and system for reducing the appearance of jaggies when deinterlacing moving edges in a video processing system are provided. The method may comprise detecting the direction of an angled edge in an interlaced video image to determine a filtering direction to be used for approximating absent pixels in deinterlacing the interlaced video. In detecting the direction of the angled edge, a group of windows of different sizes may be used to look at the edge, where a missing pixel is the center of each of the windows. Detecting the direction of the edge, and therefore the direction of filtering, may comprise: determining the angle associated with the edge, determining the strength of the edge, examining the pixels surrounding the absent pixel, and adjusting the first angle measure and the second angle measure based on the pattern of the surrounding pixels.Type: GrantFiled: August 22, 2011Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Richard H. Wyman, Brian Schoner
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Patent number: 8350966Abstract: Two consecutive interlaced video pictures of the same polarity or two consecutive progressive video pictures are read by a video processing system. The video pictures may comprise a current picture and a noise reduced reference picture. Motion and/or motion vectors may be estimated between the current and reference pictures by a motion compensated noise detector and/or a motion compensated temporal filter. A noise level sample may be determined for a pixel in the current picture based on a window of pixel data from the current picture and a window of motion compensated pixel data from the reference picture. One or more of a moving edge gradient value, a moving content value and a determined range of noise level values may be utilized to determine a valid noise sample. Noise level samples may be accumulated and a noise level may be determined for the current picture.Type: GrantFiled: June 8, 2009Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventor: Sheng Zhong
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Patent number: 8352722Abstract: A platform may comprise a management controller (MC) and a BIOS that may store SMBIOS information that may comprise metadata. SMBIOS information may be stored in the SMBIOS structure table. SMBIOS information may be transferred to the MC and may be communicated from the MC to an entity external to the platform. The BIOS may be inaccessible to the external entity. The MC may communicate with the external entity when the platform is powered ON or OFF. SMBIOS information may be transferred between the BIOS and the MC via a communication link. The MC and/or the BIOS may determine whether SMBIOS information from the MC is up-to-date. SMBIOS information may be copied from the BIOS to the MC if not up-to-date. SMBIOS information may be transferred via SMBIOS messages based on structure type, instance ID and/or handle.Type: GrantFiled: March 11, 2008Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventors: Hemal V. Shah, Stephen Hurd, Robert R. Swindell
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Patent number: 8351982Abstract: A radio transceiver device includes circuitry for radiating electromagnetic signals at a very high radio frequency both through space, as well as through wave guides that are formed within a substrate material. In one embodiment, the substrate comprises a dielectric substrate formed within a board, for example, a printed circuit board. In another embodiment of the invention, the wave guide is formed within a die of an integrated circuit radio transceiver. A plurality of transceivers with different functionality is defined. Substrate transceivers are operable to transmit through the wave guides, while local transceivers are operable to produce very short range wireless transmissions through space. A third and final transceiver is a typical wireless transceiver for communication with remote (non-local to the device) transceivers. Additionally, a multi-mode transceiver is operable to configure transmit and receive circuitry based upon transmission path.Type: GrantFiled: May 23, 2007Date of Patent: January 8, 2013Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
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Publication number: 20130005241Abstract: Embodiments of the invention include electronic communications devices having a memory in near field communication device, a memory arbitrator and a host processor. The near field communication (NFC) devices are configured to receive data and drive power from the communication signal. The memory arbitrator is connected to the NFC device and the memory. The memory arbitrator is also configured to access the memory in response to an access request from the NFC device. Additionally, the memory is configurable to be accessed by both the host processor and the NFC device according to embodiments of the present invention.Type: ApplicationFiled: June 28, 2011Publication date: January 3, 2013Applicant: Broadcom CorporationInventor: Craig Fukuo OCHIKUBO
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Publication number: 20130007178Abstract: A master communications device/slave device configuration is disclosed where a master communications device discovers a slave device when the master communications device does not have the necessary features and resources to perform a service requested by an operator. The master communications device utilizes the slave device to provide additional features and resources to the master communications device in performing the service requested by the operator. The master communications device and the slave device interact as a single device provided by the master communications device/slave device configuration. The slave device serves as an extension to the master communications device providing a larger interface to the operator.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: Broadcom CorporationInventor: Aram NAHIDIPOUR
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Publication number: 20130000968Abstract: A method of manufacturing a printed circuit board is disclosed. A conductive metal layer is formed on a first surface of a dielectric substrate. One or more vias are formed through the substrate. A conductive metal layer is formed on the first surface of the substrate and is patterned to form conductive traces on the first surface of the substrate. A plating mask is formed on the second surface of the substrate. One or more openings are formed in the plating mask to correspond to the location of the via(s). Conductive metal is deposited in the via(s) sufficient to substantially fill the via(s) and make contact with the conductive metal layer on the first surface and substantially to the level of the plating mask. The plating mask is removed from the substrate such that one or more conductive posts extend outwardly from the second surface of the substrate.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: Broadcom CorporationInventors: Sam Ziqun Zhao, Rezaur Rahman Khan, Raymond Kwok Cheung Tsang
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Publication number: 20130007193Abstract: A system and method to associate a packet transmitted using a grant in a Multiple Grants per Interval (MGI) service flow with a corresponding application session that generated the packet is provided. The method includes the steps of receiving a packet and generating a first identifier that identifies the application session that generated the packet based on packet characteristics. The method further includes the step of mapping the first identifier to a second identifier based on a mapping function, inserting the second identifier into the packet, and transmitting the packet to a destination in the grant of the MGI service flow.Type: ApplicationFiled: June 29, 2011Publication date: January 3, 2013Applicant: Broadcom CorporationInventor: Gordon Yong LI
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Publication number: 20130005245Abstract: Embodiments of the present invention provide systems and methods for NFC secure application support when an NFC device is executing in a battery-off or battery-low mode. In such a case, the NFC device may have enough power to execute some applications (e.g., read-only applications) but not enough power to execute others (e.g., applications that require data to be written). Embodiments of the present invention enable these lower-power applications to be executed by the NFC device even when a host communications device has no battery power.Type: ApplicationFiled: June 29, 2011Publication date: January 3, 2013Applicant: Broadcom CorporationInventor: Philip Stewart ROYSTON
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Publication number: 20130003619Abstract: Certain aspects of a method and system for processing signals in a communication system may include maximizing system capacity for a time division duplex (TDD) multiple-input multiple-output (MIMO) system, based on reducing a search range within which to find a group of signals having maximum channel gain. At least one of: a first signal for a first user and a second signal for a second user may be selected, which are both within the reduced search range, and which provides a maximum system capacity. The first signal for the first user may be selected from the reduced search range corresponding to a channel gain that is greater than a channel gain corresponding to a remaining portion of the reduced search range. The reduced search range may be generated by sorting a plurality of signals based on a channel gain corresponding to each of the plurality of signals.Type: ApplicationFiled: September 12, 2012Publication date: January 3, 2013Applicant: Broadcom CorporationInventors: Jun Zheng, Chengjin Zhang, Pieter van Rooyen
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Publication number: 20130001791Abstract: Embodiments described herein provide a method of manufacturing integrated circuit (IC) devices. The method includes coupling a first surface of a first intermediate substrate to a first surface of a second intermediate substrate, forming a first plurality of patterned metal layers on a second surface of the first intermediate substrate to form a first substrate and a second plurality of patterned metal layers on a second surface of the second intermediate substrate to form a second substrate, and separating the first and second substrates. Each of the first substrate and the second substrate is configured to facilitate electrical interconnection between a respective IC die and a respective printed circuit board (PCB).Type: ApplicationFiled: June 28, 2011Publication date: January 3, 2013Applicant: Broadcom CorporationInventors: Fan YEUNG, Raymond (Kwok Cheung) TSANG, Edward LAW