Broadcom Corporation

Avago Technologies International Sales Pte. Limited

Qualcomm Incorporated

Avago Technologies General IP (singapore) Pte. Ltd.

David Chaohua Wu

Richard Hayden Wyman

Darren Duane Neuman

Rajesh Mamidwar

Jason William Herrick

Anand Tongle

Sanjeev Sood

Russ Lambert

Wade Keith Wan

Frederick George Walls

Predrag Kostic

Flaviu Dorin Turean

Prashant Katre

Alexander Garland MacInnis

Sheng Zhong

Hoang Nhu

Brett J Andrews

Ronald Crochiere

Peisong Chen

Brian Francis Schoner

James M Brown

Jaewon Shin

Jian Wei

Keith LaRell Klingler

Glen A Grover

Gheorghe Berbecel

Benjamin S Giese

Cam Minh Luu

Keith LaRell Klinger

Shu Chan

Milomir Aleksic

A system and method are provided to generate blended video and graphics using a blending domain. The system converts video from a first domain to a blending domain. The system converts graphics from a second domain to the blending domain and blends the video and graphics in the blending domain to generate a blended output.

System and method to provide high-quality blending of video and graphics

An apparatus for improved rendering includes a number of processing channels to receive multiple input content sources and to process that input content. A compositor can composite processed input content to generate a composite output signal. An output adaptation block can adapt the composite output signal along with dynamic metadata for display by a display device. Each processing channel includes a statistics generator and an input adaptation block.

Video rendering system

In some aspects, the disclosure is directed to methods and systems for transformation between media formats, such as between standard dynamic range (SDR) and high dynamic range (HDR) media or between HDR media formats, without undesired hue shifting, via one or both of a luminance mapping ratio technique and a direct color component mapping technique.

System and method of luminance processing in high dynamic range and standard dynamic range conversion

Systems and methods are provided for combining a plurality of streams with a plurality of formats into a single output stream in a predetermined output format. Each of the plurality of streams includes at least one of video or graphics. Each stream is processed by determining a format of the stream, determining whether the format is compatible with the predetermined output format, and responsive to determining that the format is compatible with the predetermined output format, converting the format to the predetermined output format. The processed plurality of streams are combined into a single output stream in the predetermined output format.

Systems and methods for combining video and graphic sources for display

Systems and methods are provided to render a plurality of graphical assets each having a format of a plurality of formats. Each graphical asset is processed by determining whether the format of the graphical asset is compatible with a predetermined render domain format and responsive to determining the format is not compatible with the predetermined render domain format, converting, using a format conversion circuit, the format to the predetermined render domain format. The plurality of graphical assets are rendered using a single rendering engine operable coupled to the format conversion circuit using the predetermined render domain format.

Systems and methods for rendering graphical assets

A system for lossless switching of traffic in a network device may be implemented when a network switch is integrated into a gateway device, or with any other data source. A processor of the gateway device may receive queue depth information for queues of the network switch. The processor may prevent data from being transmitted to congested queues of the network switch, while allowing data to be transmitted to uncongested queues. In this manner, data loss can be avoided through the network switch for data sourced from the gateway device, such as audio-video data retrieved from a hard drive, audio-video data received from a tuner, etc. Furthermore, re-transmission at higher layers can be reduced. Since the subject system observes congestion for each individual queue, only traffic destined to that particular, congested, queue is affected, e.g. paused. Traffic to non-congested queues is not affected, regardless of traffic class or egress port.

Lossless switching of traffic in a network device

An adaptive display calibration system includes a display, a photodetector configured to capture light emitted by the display, and a set-top box connected to the display and the photodetector. The set-top box includes processing circuitry configured to transmit one or more test patterns to the display, and receive one or more measurements of the display from the photodetector in response to the test patterns. Additionally, the processing circuitry of the set-top box determines a capability of the display based on the measurements received from the photodetector and programs the set-top box based on the capability of the display.

System, method, and computer-readable medium for adaptive display calibration and profiling

A device for decoupling audio-video (AV) traffic processing from non-AV traffic processing may include a first processor and a second processor. The first processor may be configured to establish a network connection with a client device, determine whether the network connection is associated with AV traffic, transfer the network connection to a second processor when the network connection is associated with AV traffic, and process non-AV traffic associated with the network connection when the network connection is not associated with AV traffic. The second processor may be configured to receive the network connection from the first processor and process the AV traffic associated with the network connection.

Decoupling audio-video (AV) traffic processing from non-AV traffic processing

A system for efficient memory bandwidth utilization may include a depacketizer, a packetizer, and a processor core. The depacketizer may generate header information items from received packets, where the header information items include sufficient information for the processor core to process the packets without accessing the payloads from off-chip memory. The depacketizer may accumulate multiple payloads and may write the multiple payloads to the off-chip memory in a single memory transaction when a threshold amount of the payloads have been accumulated. The processor core may receive the header information items and may generate a single descriptor for accessing multiple payloads corresponding to the header information items from the off-chip memory. The packetizer may generate a header for each payload based at least on on-chip information and without accessing off-chip memory. Thus, the subject system provides efficient memory bandwidth utilization, e.g. at least by reducing the number of off-chip memory accesses.

Efficient memory bandwidth utilization in a network device

A system for adaptive audio video (AV) stream processing may include at least one processor and a switch device. The switch device may be configured to route AV traffic to the processor, and to receive AV traffic from the processor and provide the AV traffic to a client device via one or more channels. The processor may monitor a transcoder buffer depth and depths of buffers associated with channels over which the AV traffic is being transmitted. The processor may adaptively modify one or more attributes associated with the AV traffic based at least on the monitored buffer depths. For example, the processor may adaptively adjust a bit rate associated with transcoding the AV traffic based at least on the transcoder buffer depth. The processor may utilize the depths of the buffers associated with the channels to adaptively adjust the amount of AV traffic provided for transmission over the channels.

Adaptive audio video (AV) stream processing

A method of handling retransmission and memory consumption tracking of data packets includes storing data packets from different data channels in respective transmitter ring buffers allocated to the data channels when the data packets are not marked for retransmission, and facilitating retransmission of data packets from a specified ring buffer corresponding to a retransmission sequence number. The method also may include storing received data packets out of sequence in respective receiver ring buffers, marking a descriptor indicating a tail location of the stored data packets, and reclaiming memory space in the ring buffer based on the marked descriptor. The method may include storing a payload address associated with received data packets, marking a descriptor associated with the payload address to indicate the stored data packets have been consumed for processing, and reclaiming memory space when a register contains an indication of the stored payload address based on the marked descriptor.

Retransmission and memory consumption tracking of data packets in a network device

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San Diego, CA, United States of America

David Chaohua Wu