Xin Zhao

US Patent:

20080312174, Dec 18, 2008

Filed:

May 23, 2008

Appl. No.:

12/126721

Inventors:

Lei Yu - Carlsbad CA, US
Gang Zhao - Vista CA, US
Nianchun Ma - Oceanside CA, US
Xin Zhao - San Diego CA, US
Jian Liu - San Diego CA, US
Yasunobu Tanaka - San Diego CA, US

Assignee:

Nitto Denko Corporation - Osaka

International Classification:

A61K 31/7105
C12N 15/88
C12Q 1/68
C12N 5/00
C12M 1/00

US Classification:

514 44, 435458, 435 6, 435375, 4352851

Abstract:

Compositions for siRNA delivery are described which include water soluble degradable crosslinked cationic polymers having a water soluble polyethylene glycol component, a cationic polyethyleneimine component and a degradable unit component. The composition may be used to deliver siRNA to cells, particularly cancer cells. The composition may be applied to a solid surface such as a multiwell plate so that the delivery of siRNA may be carried out on the solid surface.

US Patent:

20220394238, Dec 8, 2022

Filed:

Aug 12, 2022

Appl. No.:

17/886595

Inventors:

- Palo Alto CA, US
Xin ZHAO - San Diego CA, US
Xiang LI - Los Gatos CA, US
Shan LIU - San Jose CA, US

Assignee:

TENCENT AMERICA LLC - Palo Alto CA

International Classification:

H04N 19/103
H04N 19/44
H04N 19/176
H04N 19/159

Abstract:

A method of and device for controlling multi-line intra prediction using a non-zero reference line. The method includes determining whether an intra prediction mode of a first neighboring block of a current block is an angular mode, determining whether an intra prediction mode of a second neighboring block of the current block is an angular mode, and generating a Most Probable Mode (MPM) list of the current block.

US Patent:

20220345707, Oct 27, 2022

Filed:

Jul 5, 2022

Appl. No.:

17/857408

Inventors:

- Palo Alto CA, US
Xin ZHAO - San Diego CA, US
Shan LIU - San Jose CA, US

Assignee:

TENCENT AMERICA LLC - Palo Alto CA

International Classification:

H04N 19/126
H04N 19/61
H04N 19/186
H04N 19/12
H04N 19/189

Abstract:

There is included a method and apparatus comprising computer code configured to cause a processor or processors to perform receiving video data in an AOMedia Video 1 (AV1) format comprising data of at least two chroma prediction-residual signal blocks, a transformation between at least one signal block, having a size less than or equal to a combination of the chroma prediction-residual signal blocks, and the chroma prediction-residual signal blocks, and decoding the video data based on an output of the transformation comprising the at least one signal block having the size less than or equal to the combination of the chroma prediction-residual blocks.

US Patent:

20220345743, Oct 27, 2022

Filed:

Jul 1, 2022

Appl. No.:

17/856317

Inventors:

- Palo Alto CA, US
Xin ZHAO - San Diego CA, US
Shan LIU - San Jose CA, US

Assignee:

Tencent America LLC - Palo Alto CA

International Classification:

H04N 19/60
G06F 17/16

Abstract:

A method, computer program, and computer system is provided for coding video data. Video data is received. One or more transform cores corresponding to a transform associated with the video data are identified. The one or more transform cores include one or more of a line graph transform (LGT) and a discrete sine transform (DST) The video data is decoded based on the identified transform core. The transform cores correspond to one or more from among an 8-bit transform core and a 10-bit transform core. The transform corresponds to one or more from among a 2-point transform, a 4-point transform, an 8-point transform, and a 16-point transform.

US Patent:

20220329790, Oct 13, 2022

Filed:

Jun 10, 2022

Appl. No.:

17/837805

Inventors:

- Palo Alto CA, US
Xin ZHAO - San Diego CA, US
Xiang LI - Los Gatos CA, US
Shan LIU - San Jose CA, US

Assignee:

TENCENT AMERICA LLC - Palo Alto CA

International Classification:

H04N 19/11
H04N 19/117
H04N 19/176

Abstract:

A method of and an apparatus for controlling intra prediction for decoding of a video sequence are provided. The method may include based on a reference line index signaling a first reference line nearest to a coding unit, among a plurality of reference lines adjacent to the coding unit, applying intra smoothing on one or more first reference lines comprising the first reference line, among the plurality of reference lines, and based on the intra smoothing being applied on the one or more first reference lines, applying a position-dependent intra prediction combination (PDPC) on one or more third reference lines comprising the first reference line, among the plurality of reference lines, while preventing application of the PDPC on one or more fourth reference lines other than the one or more third reference lines, among the plurality of reference lines.

US Patent:

20220303530, Sep 22, 2022

Filed:

Jun 10, 2022

Appl. No.:

17/837466

Inventors:

- Palo Alto CA, US
Xin ZHAO - San Diego CA, US
Shan LIU - San Jose CA, US

Assignee:

TENCENT AMERICA LLC - Palo Alto CA

International Classification:

H04N 19/117
H04N 19/80
H04N 19/176
H04N 19/132
H04N 19/186
H04N 19/60

Abstract:

A method for video coding, executable by a processor, includes receiving video data, determining a directionality of a sample block of the received video data, the directionality corresponding to a descriptor, applying a geometric transformation in which filter coefficients of a cross-component filter or reconstructed samples in a filter support region are rotated by a first amount based on the directionality being a first direction and rotated by a second amount based on the directionality being a second direction different from the first direction, and decoding the video data based on the applied geometric transformation.

US Patent:

20220295096, Sep 15, 2022

Filed:

May 26, 2022

Appl. No.:

17/825770

Inventors:

- Palo Alto CA, US
Xin ZHAO - San Diego CA, US
Shan LIU - San Jose CA, US

International Classification:

H04N 19/593
H04N 19/172
H04N 19/157
H04N 19/124
H04N 19/176
H04N 19/184
H04N 19/13

Abstract:

A video decoding method includes obtaining a current frame of a video input; partitioning the current video frame into a plurality of coding blocks; predicting a symbol level for each coding block in intra prediction modes included in an allowed intra prediction mode (AIPM) set; transforming and quantizing a residual symbol level; entropy coding the transformed and quantized residual symbol level; and outputting a bitstream. The intra prediction modes included in the AIPM set are determined by determining whether a current video coding format for the current frame is of a video coding scheme based on VVC standard or a video coding scheme based on AV1 standard. The intra prediction modes include 6 most probable modes (MPM) and 32 remaining modes in the AIPM set for VVC standard, and directional modes of 8 nominal angles and non-directional or smooth modes in the AIPM set for AV1 standard.

US Patent:

20220272340, Aug 25, 2022

Filed:

May 10, 2022

Appl. No.:

17/741072

Inventors:

- Palo Alto CA, US
Xin ZHAO - San Diego CA, US
Yixin DU - Los Altos CA, US
Shan LIU - San Jose CA, US

Assignee:

TENCENT AMERICA LLC - Palo Alto CA

International Classification:

H04N 19/119
H04N 19/46
H04N 19/172
H04N 19/169
H04N 19/70

Abstract:

Systems and methods may provide flexible picture partitioning, a method includes receiving a bitstream, that includes a picture, the picture partitioned into a plurality of coding tree units (CTUs), wherein at least one row or column of CTUs, among the plurality of CTUs of the picture, that is adjacent to a boundary of the picture has a size dimension that is smaller than a corresponding size dimension of each CTU among the plurality of CTUs that is not adjacent to any boundary of the picture; and encoding the bitstream based on the plurality of CTUs, wherein the at least one row or column of CTUs includes a first CTU row or a first CTU column of the picture that is adjacent to a top boundary or left boundary of the picture, respectively.