Yi I Liu

6823087, Nov 23, 2004

May 15, 2001

09/855871

Yi Liu - Austin TX
Wei-Lien Hsu - Austin TX
Frank Gorishek - Austin TX

Advanced Micro Devices, Inc. - Austin TX

G06T 920

382266, 382268

The invention, in a first aspect, is a method for mitigating edge effects in a decompressed video image. The method comprises first reads an NÃN group of pixels defining a vertical edge between two blocks in a video frame row by row into N registers, wherein N is a predetermined number defining the length of a filter. The content of the N registers is then transposed and then filtered in the filter. The filtered content of the N registers is then transposed and stored back from where it was read. In other aspects, the invention is a program storage device encoded with instructions that, when executed by a computer, perform such a method; a computer programmed to perform such a method; and a computing system capable of performing such a method.

6832232, Dec 14, 2004

Jul 10, 2000

09/613016

Wei-Lien Hus - Austin TX
Yi Liu - Austin TX
Frank J. Gorishek - Austin TX

Advanced Micro Devices, Inc. - Sunnyvale CA

G06F 1714

708401, 708402

A system and method for carrying out a two-dimensional forward and/or inverse discrete cosine transform is disclosed herein. In one embodiment, the method includes, but is not necessarily limited to: (1) receiving multiple data blocks; (2) grouping together one respective element from each of the multiple data blocks to provide full data vectors for single-instruction-multiple-data (SIMD) floating point instructions; and (3) operating on the full data vectors with SIMD instructions to carry out the two dimensional transform on the multiple data blocks. Preferably the two dimensional transform is carried out by performing a linear transform on each row of the grouped elements, and then performing a linear transform on each column of the grouped elements. The method may further include isolating and arranging the two dimensional transform coefficients to form transform coefficient blocks that correspond to the originally received multiple data blocks. The multiple data blocks may consist of exactly two data blocks.

6907438, Jun 14, 2005

Mar 2, 2001

09/798660

David Horton - Austin TX, US
Yi Liu - Austin TX, US
Wei-Lien Hsu - Austin TX, US

Advanced Micro Devices, Inc. - Sunnyvale CA

G06F017/14

708402, 708400

A method is disclosed for performing an inverse discrete cosine transform (IDCT) using a microprocessor having an instruction set that includes SIMD floating-point instructions. In one embodiment, the method includes: (1) receiving a block of integer data having C columns and R rows; and (2) for each row, (a) loading the row data into registers; (b) converting the row data into floating-point form so that the registers each hold two floating-point row data values; and (c) using SIMD floating-point instructions to perform weighted-rotation operations on the values in the registers. Suitable SIMD floating-point instructions include the pswap, pfmul, and pfpnacc instructions. For the row-IDCT, the data values are preferably ordered in the registers so as to permit the use of these instructions. For the column-IDCT, two columns are preferably processed concurrently using SIMD instructions to improve computational efficiency. An intermediate buffer may be used to avoid unnecessary conversions between integer and floating-point format.

7016788, Mar 21, 2006

Jul 6, 2001

09/900621

Joel S. Bader - Stamford CT, US
Yi Liu - San Diego CA, US
Darius M. Dziuda - North Haven CT, US

CuraGen Corporation - Branford CT

G01N 33/48
G06F 19/00

702 19, 702 20

The present invention provides novel methods to identify, classify, quantify and compare nucleic acids and polypeptides.

7023918, Apr 4, 2006

May 30, 2002

10/159805

Siu-Leong Yu - San Jose CA, US
Yi Liu - San Ramon CA, US

ESS Technology, Inc. - Fremont CA

H04N 7/12
H04B 1/66

37524012

To detect color motion artifacts in a video frame, a motion-compensated color-distance value is compared against a threshold value. If the motion-compensated color-distance value is greater than or equal to the threshold value, color-motion artifacts are detected. The motion-compensated color-distance value is a sum of absolute values of the differences between corresponding pixel values of the video frame and a reference frame. To detect color motion artifacts in a video frame, in another embodiment, luminance and chrominance components of the intra-frame activity levels are compared against luminance and chrominance components of the inter-frame activity levels. If any of the components of the inter-frame activity levels is greater than the corresponding components of the intra-frame activity levels, color-motion artifacts are detected. To reduce color-motion artifacts, either a smaller quantization scale or intra-frame encoding is used to encode the data.

7046729, May 16, 2006

Aug 27, 2002

10/229768

Siu-Leong Yu - San Jose CA, US
Yi Liu - San Ramon CA, US

ESS Technology, Inc. - Fremont CA

H04N 7/12

37524012

A portion of the number of bits initially allocated for encoding some of the frames of a group of pictures (GOP) is accumulated in a bit bank and is subsequently used to encode other frames that may require a larger number of bits to encode than those initially allocated for these frames. Furthermore, when a scene change P frame is detected in a first GOP, a second GOP is formed. The second GOP includes the scene change P frame as well as the remaining unencoded frames of the original GOP. The P frame of the first GOP is changed to an I frame in the second GOP. Furthermore, the frame to be displayed after the I frame of the second GOP is also changed to a duplicate of the I frame of the second GOP.

7072395, Jul 4, 2006

Jul 20, 2001

09/910684

Michael Y. T. Hwang - Richmond CA, US
Chung-Ta Lee - Sunnyvale CA, US
Yi Liu - Austin TX, US

ESS Technology, Inc. - Fremont CA

H04B 1/66

37524012

A memory control apparatus for block-matching motion estimation and an associated search pattern for processing video sequence in real-time are described in this disclosure. The motion estimation subsystem utilizes a set of memory banks to store a section of the reference picture used for computing the differences between an underlying block and a spatially shifted reference block. The memory control apparatus derives the memory addresses for storing the reference picture region in the memory banks in such a way that a row or a column of data from the reference block can be accessed in parallel without wait. The row- or column-data are then made available to the parallel computation unit for computing the block difference in a single processing cycle. An associated spiral search pattern that covers the whole search region is also described that minimizes the required data access and consequently saves power consumption. Combined with a search-stop criterion, the search pattern will result in early search termination during the block-matching motion estimation process and consequently conserves more power.

7189729, Mar 13, 2007

Sep 30, 2004

10/956412

Greg Chopiuk - San Diego CA, US
Pascal Furet - Thann, FR
Nathanael Schiander Gray - San Diego CA, US
Patricia Imbach - Kaiseraugst, CH
Yi Liu - San Diego CA, US
Joseph Schoepfer - Riehen, CH
Ruo Steensma - La Jolla CA, US

IRM LLC - Hamilton

C07D 239/42
C07D 403/12
A61K 31/506
A61P 19/02
A61P 35/00

514256, 544326, 544328, 544333

The invention provides a novel class of compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated kinase activity, particularly diseases or disorders that involve abnormal activation of the Abl, BCR-Abl, EGF-R, c-erbB2 kinase (HER-2), CHK2, FGFR3, p70S6K, PKC, PDGF-R, p38, TGFβ, KDR, c-Kit, b-RAF, c-RAF, FLT1 and/or FLT4 kinases.