RICHARD ALAN WILLIAMS, MD
Radiology at Soquel Dr, Santa Cruz, CA

6542541, Apr 1, 2003

Jan 12, 2000

09/481336

Amelia Carino Luna - San Jose CA
Jason N. Wang - San Jose CA
Richard L. Williams - Scotts Valley CA

Sony Corporation - Tokyo
Sony Electronics Inc. - Park Ridge NJ

H04B 166

37524001

A method and system for decoding and reconstructing an incoming MPEG video data stream for producing decoded MPEG video data is provided. The method and system utilizes a first memory storage device with at least two memory buffers associated with a co-processor, and a second memory device with a plurality of memory buffers associated with a core-processor. Also provided is a first data transfer unit coupled to the first memory storage device and the second memory device. The first data transfer unit in response to a first signal from the core processor selects one of the first memory storage device buffer (B ) as a source and a buffer in the second memory storage device as a destination buffer (MB_B ′). The data transfer unit is adapted to read content from B and write the content of B to MB_B ′. Simultaneously, data transfer unit also selects the other buffer of the first memory storage device (B ) as a second source buffer and a second destination buffer (MB-B ′) from the plurality of buffers in the second memory storage device.

6574273, Jun 3, 2003

Jan 12, 2000

09/481603

Amelia Carino Luna - San Jose CA
Jason N. Wang - San Jose CA
Richard L. Williams - Scotts Valley CA

Sony Corporation - Tokyo
Sony Electronics, Inc. - Park Ridge NJ

H04N 712

375240

A method and apparatus for decoding an input MPEG video stream are provided that includes a core processor with a very large instruction word (VLIW) processor and a co-processor that includes a variable length decoder (VLD) for decoding the MPEG video stream. The input MPEG video stream is organized into macroblocks, wherein each macroblock includes a header for a macroblock that is not decoded, and encoded data for a macroblock whose header is previously decoded by VLD. Thereafter, VLD decodes the encoded video data of a first macroblock whose header has been decoded, and decodes the header of a second (current) macroblock. VLIW then performs motion compensation on a current macroblock based upon reference data of a previously decoded macroblock. VLIW also adds a fake slice start code and fake macroblock data at the end of each picture into the input MPEG video data stream; and utilizes the fake slice start code and fake macroblock data to skip to a next picture. The fake macroblock data indicates an error to the VLD stopping the decoding process until the core processor clears the interrupt and reinitiates decoding of a selected slice.

6418165, Jul 9, 2002

May 12, 1999

09/310531

Amelia Carino Luna - San Jose CA
Jason Naxin Wang - San Jose CA
Richard Lawrence Williams - Scotts Valley CA

Sony Corporation - Tokyo
Sony Electronics Inc. - Park Ridge NJ

H04B 166

375240, 382251, 382246, 382250, 382233

A system and method for performing a coefficient reconstruction in a decoder. The method comprises receiving a transmitted coefficient of a first block. The method also comprises retrieving a former reconstructed value. Additionally, the method comprises executing a first arithmetic operation to generate a reconstructed value of the transmitted coefficient. The first arithmetic operation is performed using the transmitted coefficient and the former reconstructed value. Finally, the method comprises replacing the former reconstructed value with the new reconstructed value.

2013018, Jul 18, 2013

Jan 17, 2012

13/351828

Lucas Neal Joppa - Swavesey, GB
Andrew Bryan Roberts - Macclesfield, GB
Richard James Williams - Santa Cruz CA, US

MICROSOFT CORPORATION - Redmond WA

G06F 17/30, G06F 15/16

707714, 707769, 707723, 707E17014, 707E17017

A flexible database and iterative spatial search process is described. In an embodiment, a flexible database server is described which takes input queries in the form of XML strings describing a search specification and parses them using a stored procedure. Searching is performed by generating a temporary table for each term in the search specification and then comparing the temporary tables to pre-existing tables within the database to identify datasets that meet the search specification. An application is also described which generates the XML string in response to user input and which displays the results to a user. The application provides a user interface which enables users to select attributes of results, such as the spatial data associated with a dataset, to include in a second search specification and to trigger this new search.

6298087, Oct 2, 2001

Aug 31, 1998

9/144693

Amelia Carino Luna - San Jose CA
Jason (Naxin) Wang - Sunnyvale CA
Richard Lawrence Williams - Scotts Valley CA

Sony Corporation - Tokyo
Sony Electronics INC - Park Ridge NJ

H04N 712

37524025

A variable length code decoder includes modified VLC decode tables as compared to table b. 14 and b. 15 of Annex B of the ISO/IEC 31818-2 standard, and improved program code for inverse quantising block DCT coefficients. The modified VLC decoding tables include level values corresponding to VLC coded words that have been pre-multiplied by the value 2, or by 2 then plus 1. As a result, the modified tables of the present invention reduces the computational complexity of the inverse quantization calculation of the method of the present invention as compared to the algorithm provided in ISO/IEC 31818-2, section 7. Advantageously, the bandwidth requirement of the inverse quantiser processor is reduced as compared to the bandwidth requirement of an inverse processor executing the inverse quantization calculation as defined in the Standard. Conveniently, lower cost, and more widely available processors may be used in the decoder of the present invention.

6850568, Feb 1, 2005

Jan 12, 2000

09/481337

Richard L. Williams - Scotts Valley CA, US
Amelia Carino Luna - San Jose CA, US
Jason N. Wang - San Jose CA, US

Sony Corporation - Tokyo
Sony Electronics, Inc. - Park Ridge NJ

H04N 712, H04N 1104, H04N 1102

37524016, 37524027, 37524023

A method and apparatus for decoding an input MPEG video stream are provided that includes a core processor with a very long instruction word (VLIW) processor and a co-processor that includes a variable length decoder (VLD) for decoding the MPEG video stream. The input MPEG video stream is organized into macroblocks, wherein each macroblock includes a header for a macroblock that is not decoded, and encoded data for a macroblock whose header is previously decoded by VLD. Thereafter, VLD decodes the encoded video data of a first macroblock whose header has been decoded, and decodes the header of a second (current) macroblock. VLIW then performs motion compensation on a current macroblock based upon reference data of a previously decoded macroblock. VLIW also adds a fake slice start code and fake macroblock data at the end of each picture into the input MPEG video data stream; and utilizes the fake slice start code and fake macroblock data to skip to a next slice. The fake macroblock data indicates an error to the VLD stopping the decoding process until the core processor clears the interrupt and reinitiates decoding of a selected macroblock.