Patents Assigned to Broadcom Corporation
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Patent number: 7920630Abstract: A system, method, and apparatus for providing display parameters from the decode process to the display process are presented herein. The decode process receives images which are encoded according to a predetermined standard. Included with the encoded images are parameters which facilitate the decode and display processes. The decode process decodes the encoded images as well as the parameters and stores each image in a separate image buffer. Additionally, the decode process stores the parameters which facilitate the display process in a buffer descriptor structure associated with the image buffer. The display process uses the parameters stored in the buffer descriptor structure during the display process.Type: GrantFiled: June 26, 2003Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Sandeep Bhatia, Santosh Savekar, Srinivasa Reddy, Subramanian Kuppuswamy, Shivapirakasan Kanakaraj, Satheesh Babu, Arun Gopalakrishna Rao, Gaurav Agrawal, Sunoj Koshy
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Patent number: 7920628Abstract: A method and system for reducing noise in a video stream comprising images divided into macroblocks, where each macroblock includes luma and chroma blocks and each block is comprised of pixels. The method comprises determining correlation of a macroblock with a reference macroblock, comparing its motion vectors to a predetermined threshold, computing a residual signal of the macroblock by subtracting the macroblock from a predicted macroblock, computing a variance of a residual signal of the macroblock, comparing the variance of the residual signal to another predetermined threshold, determining a filter strength for the macroblock based on one or more of factors such as correlation, motion vector size and variance of the residual signal and filtering the macroblock using a filter of appropriate strength.Type: GrantFiled: August 18, 2005Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Gideon Kojokaro, David Drezner
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Patent number: 7919985Abstract: Various circuit techniques for implementing ultra high speed circuits use current-controlled CMOS (C3MOS) logic with inductive broadbanding fabricated in conventional CMOS process technology. Optimum balance between power consumption and speed for each circuit application is achieved by combining high speed C3MOS logic with inductive broadbanding/C3MOS logic with low power conventional CMOS logic. The combined C3MOS logic with inductive broadbanding/C3MOS/CMOS logic allows greater integration of circuits such as high speed transceivers used in fiber optic communication systems.Type: GrantFiled: February 10, 2009Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventor: Michael M. Green
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Patent number: 7920837Abstract: Methods and systems for wireless communication are disclosed and may include band-limiting a wireless signal utilizing a programmable bandpass filter, generating a first signal by undersampling utilizing a clock signal and generating a second signal by undersampling the signal utilizing a delayed version of the clock signal, which may then be subtracted from the first signal. The filter may comprise a microstrip or a coplanar waveguide bandpass filter. The delay may be variable, and may be defined as an inverse of a frequency difference between the desired channel and a blocker signal. The bandwidth of the filter may be centered at the desired channel. The clock signal may be generated at a frequency which may be an integer sub-harmonic of the desired channel, and may be greater than twice a bandwidth of the filter. The delay may be controlled by a programmable delay circuit, which may comprise CMOS inverters.Type: GrantFiled: September 28, 2007Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran
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Patent number: 7920597Abstract: Aspects of a method and system for low power IDLE signal transmission in Ethernet networks are provided. In this regard, during time periods between transmissions of actual data by a local Ethernet link partner, the local Ethernet Link partner may generate one or more signals, in place of a standard Ethernet IDLE signal, that enable synchronization between Ethernet link partners. In this manner, the generated signals may enable reducing power consumption as compared to standard Ethernet IDLE signals. Accordingly, link activity may be monitored to enable detecting periods when there may be no actual data for transmission and the generated signals may be transmitted. The generated signals may be transmitted at a reduced symbol rate as compared to standard Ethernet IDLE signals. The generated signals may be transmitted via fewer network links as compared to standard Ethernet IDLE signals.Type: GrantFiled: September 21, 2007Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Bruce Conway, Scott Powell
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Patent number: 7921240Abstract: Certain aspects of a method and system for supporting hardware acceleration for iSCSI read and write operations via a TCP offload engine may comprise pre-registering at least one buffer with hardware. An iSCSI command may be received from an initiator. An initiator test tag value, a data sequence value and/or a buffer offset value of an iSCSI buffer may be compared with the pre-registered buffer. Data may be fetched from the pre-registered buffer based on comparing the initiator test tag value, the data sequence value and/or the buffer offset value of the iSCSI buffer with the pre-registered buffer. The fetched data may be zero copied from the pre-registered buffer to the initiator.Type: GrantFiled: June 17, 2005Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Uri El Zur, Kan Frankie Fan, Scott Sterling McDaniel
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Patent number: 7920528Abstract: A system and method for sharing a view between systems in a dynamic wireless communication network. Various aspects of the present invention may comprise a first system communicating information of a view to a display resource of the first system. The first system may establish a two-way wireless communication link between the first system and a second system in the dynamic wireless communication network. The second system may, for example, communicate a request to the first system for the first system to share a view with the second system. The first system may, for example, receive such a request and respond to such a request by communicating information of a view to the second system. The second system may then communicate information of the view to a display resource of the second system. Various aspects may comprise the first and second systems communicating view modification information between the systems.Type: GrantFiled: July 6, 2004Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, James D. Bennett, Nambi Seshadri
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Patent number: 7921263Abstract: A system and method for accelerated handling of masked store operations in a processor or processor-based system/chip are described. A set of instructions that support a store operation under a per-byte predicate mask is provided. The invention accelerates the handling of small transfers at arbitrary alignments, such as those used by xDSL modems to deal with ATM cells or Reed Solomon codewords.Type: GrantFiled: December 22, 2006Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventor: Mark Taunton
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Patent number: 7920603Abstract: Presented herein are system(s), method(s), and apparatus for rapid switching between streams of data. In one embodiment, there is described a circuit for providing media. The circuit comprises a multiplexed stream processor, a queue, and a decoder. The multiplexed stream processor receives a multiplexed stream and filtering at least one elementary stream. The queue queues the at least one elementary stream. The decoder decodes the at least one elementary stream. The multiplexed stream processor filters at least another elementary stream instead of at least one elementary stream after issuance of a command to switch from the at least one elementary stream to the at least another elementary stream. The queue stores a portion of the at least one elementary stream after issuance of the command, said portion of the at least one elementary stream being written into the queue before issuance of the command.Type: GrantFiled: April 18, 2007Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventor: Tim Ross
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Patent number: 7920900Abstract: A scheme for sharing antenna control pins in a wireless communications device implemented on a single CMOS integrated circuit is described. By providing a routing circuit for coupling the antenna control signal to the appropriate transceiver circuitry in a multi-transceiver system, antenna control signals may be efficiently processed using a minimum of pins on the wireless communication device.Type: GrantFiled: March 12, 2007Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Greg H. Efland, David Fifield
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Patent number: 7920366Abstract: An integrated circuit can include an I/O pad, an internal circuit, an inductor, an electrostatic discharge (ESD) protection circuit, and an ESD clamp. The internal circuit can be biased with a first voltage supply and a second voltage supply, where the internal circuit is connected to the I/O pad at a first node. The ESD protection circuit can be connected between the first node and a second node. The inductor can be connected between the second node and a third voltage supply. Further, the ESD clamp can be connected between the second node and the second voltage supply.Type: GrantFiled: February 26, 2009Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Chun-Ying Chen, Agnes Neves Woo
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Patent number: 7920663Abstract: Adjusting a local frequency source is disclosed. A local frequency comparison data is compared with a received frequency comparison data, wherein the local frequency comparison data reflects a difference, if any, between a locally measured AC frequency and a frequency generated using the local frequency source. The local frequency source is adjusted based at least in part on a result of the comparison.Type: GrantFiled: November 20, 2006Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventor: William M. Stevens
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Patent number: 7920633Abstract: Described herein is a method and system for parallel processing video data. The system having parallel encoder devices can create a balance between quality of service and delay. In order to maintain quality, compression parameters in a group of pictures can be produced by one encoder device and used by another encoder device for estimation during the encoding of another group of pictures. Compression parameters of different picture types may be stored separately and used for the encoding of a future pictures of the same type. The generation and passing of compression parameters introduces a delay based on the time it takes to encode one or more pictures.Type: GrantFiled: April 22, 2005Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventor: Nader Mohsenian
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Patent number: 7920893Abstract: Aspects of a method and system for transmission or reception of FM signals utilizing a DDFS clocked by an RFID PLL are provided. In this regard, one or more signals utilized to transmit or receive FM communication may be generated by clocking a DDFS via a signal generated to enable RFID communication. The DDFS may be controlled via a control word from a processor. In this regard, the control word may determine a frequency and/or phase of the signals output by the DDFS. The control word may be switched between two or more values to generate different frequencies and/or phases in different time intervals. Additionally, the control word may be adjusted to maintain a constant phase and/or frequency in spite of changes to the signal clocking the DDFS.Type: GrantFiled: May 29, 2007Date of Patent: April 5, 2011Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran
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Publication number: 20110077715Abstract: A bio-medical communication system includes a bio-medical unit and a communication device. The bio-medical unit is implantable in and/or affixable to a host body and includes a power harvesting module, a communication module, and a functional module. The communication device is operable to: set-up a communication with the bio-medical unit; wirelessly communicate the at least one of upstream data signal and downstream data signal with the bio-medical unit; convert the upstream data signal into an upstream wide area network (WAN) signal and/or a downstream WAN signal into the downstream data signal; and transmit or receive at least one of the upstream and downstream WAN signals.Type: ApplicationFiled: May 26, 2010Publication date: March 31, 2011Applicant: BROADCOM CORPORATIONInventor: AHMADREZA (REZA) ROFOUGARAN
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Publication number: 20110077714Abstract: A bio-medical unit includes a power harvesting module and an RF communication module. The power harvesting module generates a power supply voltage from the electromagnetic signal. The RF communication module interprets a predetermined pattern of the transmitting of the electromagnetic signal to determine null intervals; receives a downstream RF communication signal during at least one of the null intervals; converts the downstream RF communication signal into downstream information; converts upstream information into an upstream RF communication signal; and/or transmits the upstream RF communication signal during one or more of the null intervals.Type: ApplicationFiled: May 20, 2010Publication date: March 31, 2011Applicant: BROADCOM CORPORATIONInventor: Ahmadreza (Reza) Rofougaran
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Publication number: 20110077580Abstract: An in vivo cancer treatment system includes a plurality of bio-medical units, a communication control device, and a wireless power source device. A bio-medical unit of the plurality of bio-medical units includes a power harvesting module operable to convert a wireless power source into a supply voltage; a communication module operable to communication data, wherein the communication unit is powered by the supply voltage; and a field generation module operable to generate a type of electromagnetic field, wherein the field generation module is powered by the supply voltage. The communication control device communicates with the plurality of bio-medical units to facilitate treatment of cancer cells within the body. The wireless power source device generates the wireless power source.Type: ApplicationFiled: December 29, 2009Publication date: March 31, 2011Applicant: BROADCOM CORPORATIONInventor: Ahmadreza (REZA) ROFOUGARAN
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Publication number: 20110077459Abstract: A bio-medical unit includes a power harvesting module, an image sensor module, a processing module, and a communication module. The power harvesting module is operable to generate a supply voltage from an electromagnetic signal. The image sensor module is powered by the supply voltage and captures streaming video of a body object. The processing module is powered by the supply voltage and processes the streaming video to produce processed streaming video. The communication module is powered by the supply voltage and transmits, as radio frequency (RF) signals, the processed streaming video to a communication device external to a host body.Type: ApplicationFiled: July 1, 2010Publication date: March 31, 2011Applicant: BROADCOM CORPORATIONInventor: Ahmadreza (Reza) Rofougaran
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Publication number: 20110077513Abstract: An in vivo ultrasound system includes first and second bio-medical units. Each of the bio-medical units includes a power harvesting module, an ultrasound transmitter, and an ultrasound receiver. Each of the power harvesting modules is operable to convert an electromagnetic signal into a supply voltage. Each of the ultrasound transmitters is powered by the first supply voltage and transmits an ultrasound signal in accordance with an ultrasound transmit-receive protocol. Each of the ultrasound receivers is powered by the supply voltage and is operable to receive a representation of the first ultrasound signal and receive a representation of a second ultrasound signal.Type: ApplicationFiled: July 1, 2010Publication date: March 31, 2011Applicant: BROADCOM CORPORATIONInventor: Ahmadreza (Reza) Rofougaran
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Publication number: 20110077718Abstract: An on-body power booster module includes an electromagnetic power harvesting unit, a continuous wave generator, and a transmitter module. The electromagnetic power harvesting unit is operably coupled to convert magnetic field energy into a voltage. The continuous wave generator is powered by the voltage and is operably coupled to generate a continuous wave signal. The transmitter module is powered by the voltage and is operably coupled to wirelessly transmit the continuous wave signal as wireless power to an implanted bio-medical unit.Type: ApplicationFiled: November 25, 2009Publication date: March 31, 2011Applicant: BROADCOM CORPORATIONInventor: Ahmadreza (Reza) Rofougaran