Jason A Yang

US Patent:

8345063, Jan 1, 2013

Filed:

Apr 3, 2009

Appl. No.:

12/418106

Inventors:

Konstantine Iourcha - San Jose CA, US
Jason Yang - San Francisco CA, US
Andrew Pomianowski - Palo Alto CA, US

Assignee:

Advanced Micro Devices, Inc. - Sunnyvale CA

International Classification:

G09G 5/00

US Classification:

345611, 382264

Abstract:

Embodiments of a filtering method and apparatus for anti-aliasing as described herein take advantage of improved existing hardware by using as input the data stored in the multisampling anti-aliasing (MSAA) buffers after rendering. The standard hardware box-filter is then replaced with a more intelligent resolve implemented using shader programs. Embodiments find scene edges using existing samples generated by Graphics Processing Unit (GPU) hardware. Using samples from a footprint larger than a single pixel, a gradient is calculated matching the direction of an edge. A non-linear filter over contributing samples in the direction of the gradient gives the final result.

US Patent:

8345756, Jan 1, 2013

Filed:

Aug 31, 2006

Appl. No.:

11/515472

Inventors:

Alexander Lyashevsky - Cupertino CA, US
Jason Yang - San Francisco CA, US
Arcot J. Preetham - Sunnyvale CA, US

Assignee:

ATI Technologies, Inc. - Ontario

International Classification:

H04N 7/12

US Classification:

37524015, 37524013, 37524025

Abstract:

Embodiments of a method and system for intra-prediction in decoding video data are described herein. In various embodiments, a high-compression-ratio codec (such as H. 264) is part of the encoding scheme for the video data. Embodiments pre-process control maps that were generated from encoded video data, and generating intermediate control maps comprising information regarding decoding the video data. The control maps indicate which units of video data in a frame are to be processed using an intra-prediction operation. In an embodiment, intra-prediction is performed on a frame basis such that intra-prediction is performed on an entire frame at one time. In other embodiments, processing of different frames is interleaved. Embodiments increase the efficiency of the intra-prediction such as to allow decoding of high-compression-ratio encoded video data on personal computers or comparable equipment without special, additional decoding hardware.

US Patent:

20030035608, Feb 20, 2003

Filed:

Aug 9, 2002

Appl. No.:

10/215559

Inventors:

Qin Zhang - San Jose CA, US
Jianzhong Zhang - Palo Alto CA, US
Jason Yang - Cupertino CA, US

International Classification:

G02B006/26

US Classification:

385/015000, 385/027000

Abstract:

A dispersion compensation system includes a number of etalons cascaded in series to form a chain. The chain of etalons introduces a cumulative group delay that compensates for chomatic dispersion and dispersion slope. At least one of the etalons is tunable, thus allowing the system to be turned, for example to compensate for different amounts of dispersion and/or manufacturing variations.

US Patent:

20030099019, May 29, 2003

Filed:

Mar 15, 2002

Appl. No.:

10/099413

Inventors:

Qin Zhang - San Jose CA, US
Jason Yang - Cupertino CA, US

International Classification:

H04B010/18
G02B006/26

US Classification:

359/161000, 385/039000

Abstract:

A dispersion compensation system includes a number of etalons cascaded in series to form a chain. The chain of etalons introduces a cumulative group delay that compensates for chromatic dispersion. At least one of the etalons is tunable, thus allowing the system to be tuned, for example to compensate for different amounts of dispersion and/or manufacturing variations.

US Patent:

20080056348, Mar 6, 2008

Filed:

Aug 31, 2006

Appl. No.:

11/514780

Inventors:

Alexander Lyashevsky - Cupertino CA, US
Jason Yang - San Francisco CA, US
Arcot J. Preetham - Sunnyvale CA, US

International Classification:

H04B 1/66
H04N 11/02

US Classification:

3752401, 37524025

Abstract:

Embodiments of a method and system for decoding video data are described herein. In various embodiments, a high-compression-ratio codec (such as H.264) is part of the encoding scheme for the video data. Embodiments pre-process control maps that were generated from encoded video data, and generating intermediate control maps comprising information regarding decoding the video data. The control maps include information regarding rearranging the video data to be processed in parallel on multiple pipelines of a graphics processing unit (GPU) so as to optimize the use of the multiple pipelines. In an embodiment, decoding is performed on a frame basis such that each of multiple, distinct decoding operations is performed on an entire frame at one time. In other embodiments, processing of different frames is interleaved. Embodiments increase the efficiency of the decoding such as to allow decoding of high-compression-ratio encoded video data on personal computers or comparable equipment without special, additional decoding hardware.

US Patent:

20080056349, Mar 6, 2008

Filed:

Aug 31, 2006

Appl. No.:

11/514801

Inventors:

Alexander Lyashevsky - Cupertino CA, US
Jason Yang - San Francisco CA, US
Arcot J. Preetham - Sunnyvale CA, US

International Classification:

H04B 1/66
H04N 7/12

US Classification:

3752401, 37524012

Abstract:

Embodiments of a method and system for motion compensation in decoding video data are described herein. In various embodiments, a high-compression-ratio codec (such as H.264) is part of the encoding scheme for the video data. Embodiments pre-process control maps that were generated from encoded video data, and generating intermediate control maps comprising information regarding decoding the video data. The control maps indicate which one of multiple prediction operations is to be used in performing motion compensation on particular units of data in a frame. In an embodiment, motion compensation is performed on a frame basis such that each of the multiple prediction operations is performed on an entire frame at one time. In other embodiments, processing of different frames is interleaved. Embodiments increase the efficiency of the motion compensation such as to allow decoding of high-compression-ratio encoded video data on personal computers or comparable equipment without special, additional decoding hardware.

US Patent:

20080056350, Mar 6, 2008

Filed:

Aug 31, 2006

Appl. No.:

11/515311

Inventors:

Alexander Lyashevsky - Cupertino CA, US
Jason Yang - San Francisco CA, US
Arcot J. Preetham - Sunnyvale CA, US

International Classification:

H04B 1/66
H04N 11/04
H04N 11/02

US Classification:

3752401, 37524024, 37524025

Abstract:

Embodiments of a method and system for decoding video data are described herein. In various embodiments, a high-compression-ratio codec (such as H.264) is part of the encoding scheme for the video data. Embodiments pre-process control maps that were generated from encoded video data, and generating intermediate control maps comprising information regarding decoding the video data. The control maps include information regarding rearranging the video data to be processed in parallel on multiple pipelines of a graphics processing unit (GPU) so as to optimize the use of the multiple pipelines. In an embodiment, macro blocks of video data with similar deblocking dependencies are identified to be processed together. Deblocking is performed on a frame basis such that deblocking is performed on an entire frame at one time. In other embodiments, processing of different frames is interleaved. Embodiments increase the efficiency of the decoding such as to allow decoding of high-compression-ratio encoded video data on personal computers or comparable equipment without special, additional decoding hardware.

US Patent:

20080056364, Mar 6, 2008

Filed:

Aug 31, 2006

Appl. No.:

11/515473

Inventors:

Alexander Lyashevsky - Cupertino CA, US
Jason Yang - San Francisco CA, US
Arcot J. Preetham - Sunnyvale CA, US

International Classification:

H04N 11/04
H04N 11/02

US Classification:

37524013, 37524025

Abstract:

Embodiments of a method and system for inter-prediction in decoding video data are described herein. In various embodiments, a high-compression-ratio codec (such as H.264) is part of the encoding scheme for the video data. Embodiments pre-process control maps that were generated from encoded video data, and generating intermediate control maps comprising information regarding decoding the video data. The control maps indicate which units of video data in a frame are to be processed using an inter-prediction operation. In an embodiment, inter-prediction is performed on a frame basis such that inter-prediction is performed on an entire frame at one time. In other embodiments, processing of different frames is interleaved. Embodiments increase the efficiency of the inter-prediction such as to allow decoding of high-compression-ratio encoded video data on personal computers or comparable equipment without special, additional decoding hardware.