Abstract: Embodiments for multi-chip and multi-substrate reconstitution based packaging are provided. Example packages are formed using substrates from a reconstitution. substrate panel or strip. The reconstitution substrate panel or strip may include known good substrates of same or different material types and/or same of different layer counts and sizes. As such, different combinations of reconstitution substrates and chips can be used within the same package, thereby allowing substrate customization according to semiconductor chip block(s) and types contained in the package.
Type:
Application
Filed:
September 27, 2011
Publication date:
March 28, 2013
Applicant:
Broadcom Corporation
Inventors:
Edward LAW, Kevin (Kunzhong) HU, Rezaur Rahman KHAN
Abstract: Wireless mobile communication (WMC) devices located in near proximity of each other may be enabled to form a mesh (ad hoc wireless) network. WMC devices may form and/or tear down intra-mesh connection with other WMC devices in the same mesh network. WMC devices may utilize information related to other WMC devices in the mesh network in determining formation and tearing down of intra-mesh connections. This information may comprise relative speeds, locations, and directions of movement of the WMC devices forming/tearing intra-mesh connections. Other information including data bandwidth and/or power consumption may be utilized in such determination. This information may also comprise available services advertised by WMC devices in the mesh network.
Abstract: In an RF communication system, aspects for processing multipath clusters may comprise tracking a plurality of received clusters of signals and estimating a phase and amplitude of at least a portion of each of the plurality of received clusters of signals. Each of the plurality of received clusters of signals may be specified in time and an aggregate of received signal paths in a single cluster for a single base station may be processed. At least one cluster path processor may be assigned to process the plurality of received clusters of signals from each transmitting antenna at a single base station. At least one cluster path processor may be assigned to each of a plurality of base stations that are utilized for soft handoff.
Abstract: Certain aspects of a method and system for reusing antennas in a multi-antenna system are disclosed. Aspects of one method may include suppressing a blocking signal received via at least one of a plurality of receiving antennas that is unused within a wideband diversity radio frequency (RF) receiver comprising a plurality of receiving antennas, when the wideband diversity RF receiver is operating in a narrowband receiving mode. The phase of the combined blocking signal and received data signal at the unused antenna may be adjusted to suppress the blocking signal.
Abstract: LDPC codes robust to non-stationary narrowband ingress noise. Particularly designed LDPC codes are adapted to address deleterious noise-effects incurred within LDPC coded signals that propagate via a communication channel (such as from a transmitting communication device to a receiving communication device). Such LDPC matrices employed for encoding and/or decoding such LDPC coded signals are composed of sub-matrices (e.g., all-zero values sub-matrices and/or CSI (Cyclic Shifted Identity) sub-matrices). The sub-matrices are generally uniform in size and square in shape. Based on certain operational conditions, such as communication channel noise, various operations within a communication device are adaptively modified (e.g., signaling, modulation, demodulation, symbol mapping, metric generation, decoding, etc.).
Abstract: A video decoder block provides a common pathway for processing video signals encoded using different video formats. The video decoder block passes the video signals through the same processing components in order convert the signals to a common format for display or storage. Each processing component can be disabled or by-passed to enable or disable the function performed by the component. This reduces the number of components and signal processors required in devices that need to accommodate signals of different formats.
Abstract: Aspects of a method and system for a method and system for a soft output Nordstrom-Robinson (NR) decoder may include one or more processors and/or circuits that are operable to more efficiently compute cross correlation values for a received soft output word based on a NR codebook in comparison to brute force computation approaches. Log likelihood ratios may be computed for each information bit corresponding to the received soft output word by determining corresponding maximum cross correlation values.
Abstract: LDPC (Low Density Parity Check) coding and interleaving implemented in multiple-input-multiple-output (MIMO) communication systems. As described herein, a wide variety of irregular LDPC codes may be generated using GRS or RS codes. A variety of communication device types are also presented that may employ the error correcting coding (ECC) using a GRS-based irregular LDPC code, along with appropriately selected interleaving, to provide for communications using ECC. These communication devices may be implemented to in wireless communication systems including those that comply with the recommendation practices and standards being developed by the IEEE 802.11n Task Group (i.e., the Task Group that is working to develop a standard for 802.11 TGn (High Throughput)).
Type:
Grant
Filed:
March 28, 2009
Date of Patent:
March 26, 2013
Assignee:
Broadcom Corporation
Inventors:
Ba-Zhong Shen, Christopher J. Hansen, Joseph Paul Lauer, Kelly Brian Cameron, Tak K. Lee, Hau Thien Tran
Abstract: A radio frequency (RF) transmitter includes a transmitter processing module that generates a processed signal and a modulating signal based on outbound data. An up-conversion module up-converts the processed signal to generate an up-converted signal. A programmable filter module generates a first plurality of delayed signals from the up-converted signal and that generates a filtered up-converted signal by combining the up-converted signal and the first plurality of delayed signals, wherein a delayed signal of the first plurality of delayed signals is scaled based on one of a first plurality of coefficients, wherein the first plurality of coefficients are selected based on a control signal. A polar amplifier amplifies and amplitude modulates the filtered up-converted signal based on the modulating signal to generate a transmit signal. A processing module generates the control signal to attenuate at least one RF spur of the up-converted signal.
Abstract: A method for generating a preamble of a frame for a wide-bandwidth channel wireless communication begins by generating a legacy carrier detect field. The method continues by generating a channel sounding field, wherein the channel sounding field includes a plurality of tones within the wide-bandwidth channel, wherein a first set of the plurality of tones corresponds to tones of a legacy channel sounding field. The method continues by generating a legacy signal field, wherein, in time, the legacy signal field follows the channel sounding field, which follows the legacy carrier detect field.
Type:
Grant
Filed:
July 10, 2007
Date of Patent:
March 26, 2013
Assignee:
Broadcom Corporation
Inventors:
Christopher J. Hansen, Jason A. Trachewsky, Rajendra Tushar Moorti
Abstract: Distortion and aliasing reduction for digital to analog conversion. Synthesis of one or more distortion terms made based on a digital signal (e.g., one or more digital codewords) is performed in accordance with digital to analog conversion. The one or more distortion terms may correspond to aliased higher-order harmonics, distortion, nonlinearities, clipping, etc. Such distortion terms may be known a priori, such as based upon particular characteristics of a given device, operational history, etc. Alternatively, such distortion terms may be determined based upon operation of a device and/or based upon an analog signal generated from the analog to conversion process. For example, frequency selective measurements made based on an analog signal generated from the digital to analog conversion may be used for determination of and/or adaptation of the one or more distortion terms. One or more DACs may be employed within various architectures operative to perform digital to analog conversion.
Type:
Grant
Filed:
August 31, 2011
Date of Patent:
March 26, 2013
Assignee:
Broadcom Corporation
Inventors:
Thomas J. Kolze, Bruce J. Currivan, Ramon A. Gomez
Abstract: A media player implements an integrated parallel source download technology to receive a media file from streamed and segmented media file sources. A first source streams delivery of streamed media packets of the media file in sequential packet number order to the media player, while a second source provides segmented delivery of segmented media packets of the media file in random order to the media player. The media player combines the streamed media packets and the segmented media packets to produce the media file.
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.
Abstract: A powerline communications device comprises a powerline communications interface and at least one other communications interface configured to communicate over a computing network. The powerline communications interface is further configured to receive electrical power. The computing network may comprise mediums including powerlines, telephone lines, and/or coaxial cables. In some embodiments, the powerline communications interface may communicate with a network apparatus, such as a personal computer, via an Ethernet interface. The powerline interface, the telephone line interface, and/or the coaxial cable interface may all be associated with the same media access control (MAC) address. The powerline communications device may receive a message via a first medium and repeat the message via a second medium based on a quality of service (QoS) metric. In some embodiments, the powerline communications device may communicate using multiple frequency bands.
Type:
Grant
Filed:
May 23, 2007
Date of Patent:
March 26, 2013
Assignee:
Broadcom Corporation
Inventors:
Jonathan Ephraim David Hurwitz, Juan Carlos Riveiro, David Ruiz
Abstract: Various embodiments are disclosed relating to wireless systems, and also relating to transmitter amplifiers, such as, for example, polar transmitter amplifiers with variable output power. According to an example embodiment, a circuit is provided including a plurality of selectable amplifier cells. Each amplifier cell may receive a phase or frequency modulated signal and an amplitude modulated signal. Each amplifier cell may output a signal based upon a combination of the received amplitude modulated signal and the received phase or frequency modulated signal if the amplifier cell is selected. The circuit may provide a variable output current or output power based upon the selection of one or more of the amplifier cells.
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:
Grant
Filed:
July 26, 2012
Date of Patent:
March 26, 2013
Assignee:
Broadcom Corporation
Inventors:
Vinko Erceg, Arya Reza Behzad, David Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley
Abstract: Formulaic flexible collision-free memory accessing for parallel turbo decoding with quadratic polynomial permutation (QPP) interleave. A means is presented by which any desired number of parallel implemented turbo decoding processors can be employed to perform turbo decoding that has been performed using a QPP interleave. This approach is presented to allow an arbitrarily selected number (M) of decoding processors (e.g., a plurality of parallel implemented turbo decoders) to perform decoding of a turbo coded signal while still using a selected embodiment of a QPP interleave. In addition, a collision-free memory mapping, (MOD,C,W) provides more freedom for selecting the particular quadratic polynomial permutation (QPP) interleave (?) that satisfies a parallel turbo decoding implementation with any desired number of parallel implemented turbo decoding processors.
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:
Grant
Filed:
December 16, 2010
Date of Patent:
March 26, 2013
Assignee:
Broadcom Corporation
Inventors:
Myron Buer, Dechang Sun, Duane Jacobson, David William Knebelsberger, Jan LeClair
Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator.
Type:
Grant
Filed:
October 7, 2011
Date of Patent:
March 26, 2013
Assignee:
Broadcom Corporation
Inventors:
Agnes N. Woo, Kenneth R. Kindsfater, Fang Lu
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:
Grant
Filed:
April 2, 2012
Date of Patent:
March 26, 2013
Assignee:
Broadcom Corporation
Inventors:
Stephen E. Gordon, Jeyhan Karaoguz, Sherman (Xuemin) Chen, Michael Dove, David Rosmann, Thomas J. Quigley