Vidiator Enterprises Inc.

Cirrus Logic Inc.

Cisco Technology, Inc.

Neomagic Corporation

Trident Microsystems, Inc.

Dave M Singhal

Roger Khemraj Brooks

Yanda Ma

Bryan Michael Richter

Stephen A Smith

Stephen A Molloy

Qing Zhang

Chi-Te Feng

Chester F Bassetti

Abdul Q Kashmiri

Mike Assar

Jerry L Clark

Wen-hsiung Chen

Dihong Tian

Jack Chi Cham

Danyang Raymond Zheng

Ping Li

Jihad Y Abudayyeh

Shawn Hsiao-Ping Yang

Nicholas Augustinos

Sidong Li

Xia Hong

A system may receive a request from a client station to communicate with any available expert that matches at least one criterion. The system determines an identity of an expert station associated with an expert matching the at least one criterion. The system may then establish a session between the client station and the expert station, where the session includes a first connection and a second connection, the first connection is for transmission of audio/video, and the second connection is for transmission of telemetry data during the transmission of the audio/video. The telemetry data is measured at the client station.

Intelligent routing of coordinated audio, video, web services and measurement data streams

In an image generation and rendering system, a quality stamp indicative of image fidelity is embedded in image data units resulting from image data compression/encoding. At decoding, the image quality stamp is captured and when the decoded image is rendered, a fidelity indicator is displayed along with the image.

Embedded image quality stamps

A method for forming an output stream of data includes determining an output resolution for the output stream of data, determining an output frame rate for the output stream of data, determining an output color depth for the output stream of data, retrieving a first frame of data, a second frame of data, and a third frame of data from an input stream of data, the input stream of data having an input resolution, an input frame rate, and an input color depth, subsampling the first frame of data, the second frame of data, and the third frame of data to respectively form a first subsampled frame of data, a second subsampled frame of data, and a third subsampled frame of data, when the output resolution is lower than the input resolution, dropping the second subsampled frame of data, when the output frame rate is lower than the input frame rate, reducing color depth for the first subsampled frame of data and the second subsampled frame of data to respectively form a first reduced frame of data and a second reduced frame of data, when the output color depth is smaller than the input color depth, and converting the first reduced frame of data and the second reduced frame of data into the output stream of data.

Methods for transforming streaming video data

According to one embodiment, a circuit configured to form an output video stream includes a resolution modification circuit configured to receive a plurality of video frames from a frame buffer, and configured to modify resolution of the plurality of video frames, when the desired resolution for the output video stream is different than a resolution of the input video stream, the plurality of frames of data derived from an input video stream, a frame reducing circuit coupled to the resolution reducing circuit configured to reduce a number of video frames in the plurality of video frames from the resolution reducing circuit, when a desired frame rate for the output video stream is different than a frame rate of the input video stream, a depth reduction circuit coupled to the frame reducing circuit configured to reduce bit depth of the plurality of video frames from the frame reducing circuit, when a desired bit depth for the output video stream is different than a bit depth of the input video stream, and a rate reduction circuit coupled to the depth reduction circuit, configured to scale the plurality of video frames from the depth reduction circuit, in response to a desired bit rate for the output video stream, and an encoder coupled to the rate reduction circuit, configured to encode the plurality of video frames from the rate reduction circuit into the output video stream is also contemplated.

System for transforming streaming video data

According to one embodiment, a computer program product for a system including a processor includes a tangible memory including code that directs the processor to determine an output resolution for an output stream of data, code that directs the processor to determine an output frame rate for the output stream of data, code that directs the processor to determine an output color depth for the output stream of data, code that directs the processor to retrieve a first frame of data, a second frame of data, and a third frame of data from an input stream of data, the input stream of data having an input resolution, an input frame rate, and an input color depth, code that directs the processor to subsample the first frame of data, the second frame of data, and the third frame of data to respectively form a first subsampled frame of data, a second subsampled frame of data, and a third subsampled frame of data, when the output resolution is lower than the input resolution are also included, code that directs the processor to remove the second subsampled frame of data, when the output frame rate is lower than the input frame rate, code that directs the processor to reduce color depth for the first subsampled frame of data and the second subsampled frame of data to respectively form a first reduced frame of data and a second reduced frame of data, when the output color depth is smaller than the input color depth, and code that directs the processor to convert the first reduced frame of data and the second reduced frame of data into the output stream of data.

Computer program product for transforming streaming video data

A method for transmitting audio/video data from a web site to viewing devices, e.g., personal digital assistant, cellular phone. The method includes prompting at least two selections on a viewing device, which is coupled to a worldwide network of computers through a wireless connection. The two selections comprises a first selection for an automatic set up () and a second selection for a manual set up. The method includes selecting either the first selection or the second selection and transmitting the selection to a web site, which is coupled to a source of audio/video data, e.g., camera. If the first selection is entered, a web page based upon a viewer's profile of the viewing device is formed and transmitted to the viewing device. Alternatively, if the second selection is entered, a form page of selectable parameters is formed and transmitted from the web site to the viewing device. Next, audio/video data from the web site is transmitted to the viewing device based upon the first selection or the second selection.

Personal broadcasting and viewing method of audio and video data using a wide area network

A system for transferring real time video information from a source device to one of a plurality of output devices includes an image capturing device for acquiring video information, the image capturing device comprising a processor, a graphics module coupled to the processor, a browsing device coupled to the processor, a packetizing portion coupled to the processor, the packetizing portion being adapted to convert the video information into a packetized stream of information, the packetized stream of information being in a first format, and an output device coupled to the processor for transferring the packetized stream of information to a network, a network gateway coupled to the image capturing device through the network, the network gateway being coupled to a worldwide network of computers, the network gateway comprising a gateway transcoding device for converting the packetized stream of information from the first format to a second format, the network gateway also comprising a packetizing portion for transferring the packetized stream of information in the second format to the network, and a display device coupled to the network gateway through the world wide network of computers, the display device comprising a display device for converting the packetized stream of information into video information for display, the display device also comprising a display for displaying the video information on the display device.

Personal broadcasting system for audio and video data using a wide area network

A method and apparatus for maintaining the voltage level of data signals supplied to an integrated circuit, such as a PCMCIA card, at the same level as power also provided to the integrated circuit. Circuitry for maintaining the voltages at the same level is preferably embodied within a system having a card controller integrated circuit, a power supply, and a peripheral card socket for receiving a removable PCMCIA card. The power supply is controlled by the card controller to provide power to the PCMCIA card through the card socket at a voltage level matching internal voltage requirements of the PCMCIA card. The card controller is connected directly to the PCMCIA card by a signal transmission line. Circuitry is provided for ensuring that the voltage of data signals transmitted along the data bus line to the PCMCIA card substantially match the voltage of power provided from the power supply to the PCMCIA card along a power supply line. In this manner, damage resulting from a power mismatch within the PCMCIA card is avoided.

Computer system host adapter for controlling signal levels to peripheral

The amount of time that a row of pixels in a flat-panel display is illuminated is modulated from frame-to-frame and from row-to-row. Pixels in rows that are on for a longer period of time appear brighter than pixels in rows that are on for shorter periods of time. Such line modulation is combined with frame-rate-cycling (FRC) to dramatically increase the number of gray scales that can be generated for any given number of frames in a FRC cycle, and with phase-offsetting to keep the frame period constant and to reduce flicker. An N-frame FRC cycle that previously generated N+1 gray scales now produces a full 2.sup.N gray scales. The total pixel-on time over the N frame cycle depends not just on how many frames the pixel is on, but on which frames the pixel is on. Since each row in each frame in the FRC cycle is on for a different amount of time, aliasing of the frames is greatly lessened or no longer occurs. A line modulation buffer and speeding up the pixel clock to the panel allow for greater modulation.

Modulation of line-select times of individual rows of a flat-panel

Video information is simultaneously generated for presentation on multiple displays by a display system including a video memory having a plurality of addressable storage locations, each storage location providing for the storage of data representing a component of an independent displayable image and a video controller providing a plurality of output display control and data signals connectable to a respective plurality of video displays. The video controller accesses the video memory in a predetermined addressing pattern so as to access a sequence of the components corresponding to a plurality of the independent displayable images. The video controller, in turn, generates the plurality of output display control and data signals whereby the sequence of the components provided by way of each of the plurality of the output display control and data signals corresponds to a respective one of the independent displayable images.

Multiple concurrent display system

A low power clocking apparatus and method is used to reduce power consumption by an electronic system or an integrated circuit that is coupled to an external system via a system bus which is configured to selectively transmit or receive signals from the electronic system or integrated circuit. The electronic system or integrated circuit includes a plurality of sub-circuits. Each sub-circuit is configured to operate under control of a clock signal and further includes an apparatus for keeping or rejecting the clock signal. Once each sub-circuit within the electronic system or integrated circuit rejects the clock signal, an integral arbiter circuit disables the clock signal to all the sub-circuits. The arbiter circuit continuously monitors the system bus. Upon detecting that the sub-circuits will require the clock signal, the arbiter will re-enable the clock signal to all of the sub-circuits.

Low power clocking apparatus and method

The design and implementation of a low power CMOS bi-directional I/O buffer that translates low voltage core logic level signals into the highest logic level signals to drive the final output stage which outputs a selectable logic level signal. The buffer further translates input signals of a variety of logic levels into low voltage core logic level signals. In either case, AC and DC power consumption is minimized in a mixed power supply environment that requires voltage translation to represent the proper binary logic levels. An multivoltage I/O buffer having multiple input-receiving NOR gates is also described. The NOR gates of the multivoltage I/O buffer having triggering levels optimized for differing core voltage levels. Also described is a host adapted system for interfacing between and removable peripheral card and a host computer. The host adaptor includes an integrated circuit employing the multivoltage bi-directional I/O buffer.

Method and apparatus for controlling a mixed voltage interface in a

A method and apparatus for increasing the perceived gradation of the shades in visual displays is disclosed. A plurality of signals control the intensity of a sub-pixel of a display so that display can exhibit a native number of shades. Frame rate modulation techniques are used to increase the perceived gradation. Finally, flicker is reduced by spreading the phases of the modulating pixels across time, and the horizontal and vertical axes of the display.

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San Jose, CA, United States of America

Dave M Singhal