Patents Assigned to Broadcom Corporation
  • Publication number: 20110164115
    Abstract: Transcoders are provided for transcoding three-dimensional content to two-dimensional content, and for transcoding three-dimensional content of a first type to three-dimensional content of another type. Transcoding of content may be performed due to user preference, display device capability, bandwidth constraints, user payment/subscription constraints, device loading, and/or for other reason. Transcoders may be implemented in a content communication network in a media source, a display device, and/or in any device/node in between.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 7, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: James D. Bennett, Jeyhan Karaoguz
  • Publication number: 20110167252
    Abstract: Separate power island for high performance processor. A multi-processor design is presented in which each of the processors is implemented in separately powered portions of a circuitry (e.g., an integrated circuit). One of the processors can be a main application processor, and another of the processors can be a baseband processor. In addition, the each of the processors can be implemented using different types of circuitry (e.g., one of the processors [such as the main application processor] is implemented using higher performance/higher leakage circuitry that another of the processors [such as the baseband processor]). One of the processors (e.g., main application processor) can be powered down when not needed thereby providing energy/power conservation which can be vital is handheld communication device applications such as wireless handheld communication devices.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 7, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: Anatoly Gelman, Kiran Puttegowda
  • Publication number: 20110164111
    Abstract: Media sources that deliver at least portions of media content to viewer systems are described. The media content represents a plurality of camera perspectives of a single media product. A first request and a second request are both received. The first request is from a first viewer system and the second request is from a second viewer system. The first request is responded to by delivering a primary media stream to the first viewer system. The primary media stream contains a representation of at least a first of the plurality of camera perspectives. The second request is responded to by delivering both the primary media stream and a secondary media stream to the second viewer system. The secondary media stream contains a representation of at least a second of the plurality of camera perspectives. The second viewer system combines the primary and secondary media streams to display a three-dimensional view.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 7, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Seshadri
  • Publication number: 20110167226
    Abstract: Disclosed herein is an apparatus which may comprise a plurality of nodes. In one example embodiment, each of the plurality of nodes may include one or more central processing units (CPUs), a random access memory device, and a parallel link input/output port. The random access memory device may include a local memory address space and a global memory address space. The local memory address space may be accessible to the one or more CPUs of the node that comprises the random access memory device. The global memory address space may be accessible to CPUs of all the nodes. The parallel link input/output port may be configured to send data frames to, and receive data frames from, the global memory address space comprised by the random access memory device(s) of the other nodes.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicant: BROADCOM CORPORATION
    Inventor: Fong Pong
  • Publication number: 20110165842
    Abstract: An RFIC includes an RF section, a memory interface, a display interface, an audio codec, a bus matrix, and a processing unit. The RF section converts a first inbound RF signal into a first inbound symbol stream and converts a second inbound RF signal into a second inbound symbol stream. The memory interface is operably coupled to retrieve a video file from memory and the display interface is operable to provide video data to a display. The audio codec converts an output digital signal into an output voice signal. The processing unit converts the first inbound symbol stream into streaming video data; converts the second inbound symbol stream into the output digital signal; and facilitates providing, via the bus matrix, at least one of: the video file to the display interface as the video data; the streaming video data to the display interface as the video data; and the digital output signal to the audio codec.
    Type: Application
    Filed: March 16, 2011
    Publication date: July 7, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Hooman Darabi, Vafa James Rakshani, Claude G. Hayek
  • Patent number: 7973702
    Abstract: An apparatus a transmitter section, a receiver section, and a processing module. The transmitter section transmits a plurality of high carrier frequency beamformed signals in a loop manner until a desired number of signals has been transmitted. The receiver section receives the plurality of high carrier frequency beamformed signals and determines reception properties of the plurality of high carrier frequency beamformed signals. The processing module determines at least one of: reflection, absorption, refraction, and pass through based on the reception properties. The processing module then distinguishes an animate entity from an inanimate entity based on the at least one of the reflection, absorption, refraction, and pass through. The processing module then determines position of the animate entity within a given physical area.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Nambirajan Seshadri, Brima B. Ibrahim, John Walley, Jeyhan Karaoguz
  • Patent number: 7975079
    Abstract: A method and apparatus are provided for an embedded wireless interface that is embedded in, for example, one of an input and output controller device for controlling input and output communications with off-board devices, within a memory controller device and a processor motherboard. The embedded wireless interface may be utilized as a wireless test access point to provide signal stimulations for test purposes or to monitor communications over a specified wired communication link.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventors: James D. Bennett, Jeyhan Karaoguz
  • Patent number: 7974298
    Abstract: A method and system for automatically trunking ports connecting network devices arranged in a stacked configuration is provided. The method includes sending a packet, from a sending network device to at least one other receiving network device, through each of a plurality of ports of the network device. The packet includes at least an identifier for identifying the sending network device. The receiving network device maintains a table identifying which ports are connected to a neighboring network device. The network device automatically trunks the ports which are connected to the same network device.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventors: Brian Baird, Daniel Talayco
  • Patent number: 7974587
    Abstract: 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.
    Type: Grant
    Filed: December 30, 2006
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Patent number: 7975203
    Abstract: Quadratic polynomial permutation (QPP) interleaver providing hardware saving and flexible granularity adaptable to any possible turbo code block size. A means is presented by which only a very small number of coefficients need be stored to effectuate a wide variety of QPP interleaves as can be employed in the context of turbo coding. In one instance, to accommodate the approximate 6000 different turbo code block sizes in 3GPP LTE channel coding, only 5 different coefficient values need to be stored to effectuate a very broad range of QPP interleaves to be applied each of those various turbo code block sizes. Moreover, a few small number of dummy bits, if any, need to be employed to accommodate a very broad range of turbo code block sizes. It is noted that the QPP interleaving as described herein can be applied to turbo encoding and turbo decoding (e.g., including both interleaving and de-interleaving).
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventors: Ba-Zhong Shen, Tak K. Lee
  • Patent number: 7974035
    Abstract: Timing recovery optimization using disk clock. A novel means is presented to perform and provide control of the sampling frequency of a signal that is read from a disk within a hard disk drive (HDD). Two separate, yet somewhat cooperating control loops are employed to provide feedback control of the sampling frequency of the signal that is read from disk. A timing recovery loop and a disk clock loop operate in conjunction with one another according to some desired manner (which can be predetermined or adaptive) to ensure that the sampling of the signal is performed to a very accurate degree. In one implementation, the timing recovery loop governs the sampling rate until the disk clock loop has locked, from which time either the disk clock loop govern the sampling or some combination of the signals provided from the two loops govern the sampling.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventors: William Gene Bliss, Thomas V. Souvignier, Andrei E. Vityaev, Gregory L. Silvus
  • Patent number: 7975153
    Abstract: A midspan power sourcing equipment (PSE) for operation with power over Ethernet (PoE). The midspan PSE provides powering over wire pairs that are also used for data communication. To ensure compatibility with legacy Ethernet devices, the ports used for transmission of data are designed with a low effective impedance at a frequency of operation.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventor: Wael William Diab
  • Patent number: 7974305
    Abstract: Power over Ethernet (PoE) communication systems provide power and data communications over the same communications link, where a power source device (PSE) provides DC power (for example, 48 volts DC) to a powered device (PD). The DC power is transmitted simultaneously over the same communications medium with the high speed data from one node to the other node. For data-only switches (i.e. non-PoE), a midspan device is connected between the data-only switch and the PD devices so as to inject the DC power for the PD devices. The midspan device includes a combination data and management port that communicates both high speed data packets and management packets with the data-only switch. The combination data/management port obviates the need for a dedicated management port on both the midspan and the data-only switch. This eliminates the need to use an extra port on the data switch thus making better port utilization at the data switch as well as lowing the cost of the midspan.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventor: Wael William Diab
  • Patent number: 7973567
    Abstract: Power over Ethernet (PoE) communication systems provide power and data communications over the same communications link, where a power source device (PSE) provides DC power (for example, 48 volts DC) to a powered device (PD). The DC power is transmitted simultaneously over the same communications medium with the high speed data from one node to the other node. The PSE typically includes a controller that controls the DC power provided to the PD at the second node of the communications link. The PSE controller measures the voltage, current, and temperature of the outgoing and incoming DC supply lines to characterize the power requirements of the PD. The PSE controller includes a resistorless switch to measure the current. The resistorless switch includes a sense transistor and a current mirror to allowing the PSE controller to calculate the current based upon a replica current.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventor: Pieter Vorenkamp
  • Patent number: 7974590
    Abstract: Aspects of a method and system for simultaneous signal transmission on multiple selected frequencies may include generating from a single baseband signal, a plurality of radio frequency transmission signals each at a different radio frequency, wherein the single baseband signal comprises an in-phase signal component and/or a quadrature signal component. The single baseband signal, to generate said plurality of radio frequency transmission signals, may be modulated in a single radio frequency transmission chain, the radio frequency transmission chain comprising intermediate frequency modulation and radio frequency modulation. The plurality of radio frequency transmission signals may be a radio frequency signal and a corresponding image frequency signal, based on the intermediate frequency modulation and the radio frequency modulation.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventors: Brima Babatunde Ibrahim, John Walley, Bojko Marholev, Siukai Mak
  • Patent number: 7973818
    Abstract: There is provided a communication device for mixing effects data with real communication data. The communication device comprises a receiving element configured to receive real communication data, a first analog-to-digital converter (ADC) configured to convert real communication data to digitized real communication data, an effects data storage containing the effects data, a first mixer configured to mix the digitized real communication data with the effects data and generate first enhanced data, and a coder configured to packetize the first enhanced data to generate packetized data, and transmit the packetized data over a communication line. The communication device may be a phone, and the real communication data may be audio or video data, and the effects data maybe background effects audio or video data.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventor: Kapil Agrawal
  • Patent number: 7974599
    Abstract: A low noise amplifier includes an input transistor, an inductor, and a current sink. The input transistor includes a gate, a drain, and a source, wherein the gate of the input transistor is operably coupled to receive an input radio frequency (RF) signal. The inductor includes a first node and a second node, wherein the first node of the inductor is operably coupled to a power supply and the second node of the inductor is operably coupled to the drain of the input transistor to provide an output of the low noise amplifier. The current sink includes a first node and a second node, wherein the first node of the current sink is operably coupled to the source of the input transistor and the second node of the current sink is operably coupled to a circuit ground, wherein a real component of input impedance of the low noise amplifier is substantially constant when the low noise amplifier is in the off mode as when the low noise amplifier is in the on mode.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventor: Razieh (Rozi) Roufoogaran
  • Patent number: 7974337
    Abstract: Various example embodiments are disclosed. According to an example embodiment, an apparatus may include a continuous time filter, a decision feedback equalizer, a clock and data recovery circuit, and an adaptation circuit. The adaptation circuit may be configured to adapt equalization according to at least one dithering algorithm by adjusting a delay adjust signal based on a mean square error of equalized data signals.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventors: Afshin Momtaz, Mario Caresosa, David Kyong-Sik Chung, Davide Tonietto, Guangming Yin, Bruce Currivan, Thomas Kolze, Ichiro Fujimori
  • Patent number: 7974284
    Abstract: A method of handling datagrams in a network device is disclosed. The method includes the steps of receiving an incoming datagram at a port of the network device, determining a type for the incoming datagram based on fields in the incoming datagram and a destination address, adding a tag to the datagram to assist in routing the datagram, obtaining a multiprotocol label switching (MPLS) label when the datagram is a MPLS datagram, processing the datagram based on the MPLS label and the destination address and discarding or forwarding the datagram based upon the processing step. The tag is stripped from the datagram before it is sent from an egress port of the network switch.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventors: Yih-Chuan S. Chen, Jeff Dull
  • Patent number: 7974517
    Abstract: Systems, methods, and computer program products are described to determine and present proper decoding information to ensure correct decoding in digital video recording applications, and in other applications. For example, decoding and display of certain video units in a compressed bitstream may require the correct header information corresponding to the video unit to be also presented to a decoder along with the video unit. Since, however, the location of the corresponding header information in the compressed bitstream may not be adjacent to the video unit, the described header locating systems, methods, and computer program products may be used not only to index the header information in a bitstream, but also to determine when and what header information needs to be presented to the decoder.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: July 5, 2011
    Assignee: Broadcom Corporation
    Inventor: Wade K. Wan