Patents by Inventor Tung-Hsing Wu

Tung-Hsing Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250063207
    Abstract: A video processing apparatus includes a video encoding circuit and a post-processing circuit. The video encoding circuit receives a first source data, and encodes the first source data to generate a first bitstream, wherein the first source data includes a first source luminance channel data and a first source chrominance channel data, and the first bitstream includes a first compressed luminance channel data and a first compressed chrominance channel data. The post-processing circuit derives an auxiliary compressed chrominance channel data from an auxiliary input, and generates and outputs an output bitstream that includes the first compressed luminance channel data and the auxiliary compressed chrominance channel data.
    Type: Application
    Filed: August 5, 2024
    Publication date: February 20, 2025
    Applicant: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Han-Liang Chou, Chia-Yun Cheng
  • Patent number: 12160584
    Abstract: A video encoding apparatus includes a content activity analyzer circuit and a video encoder circuit. The content activity analyzer circuit applies a content activity analysis process to consecutive frames, to generate content activity analysis results. The consecutive frames are derived from input frames of the video encoding apparatus. The content activity analysis process includes: deriving a first content activity analysis result according to a first frame and a second frame in the consecutive frames, wherein the first content activity analysis result includes a processed frame distinct from the second frame; and deriving a second content activity analysis result according to a third frame included in the consecutive frames and the processed frame. The video encoder circuit performs a video encoding process to generate a bitstream output of the video encoding apparatus, wherein information derived from the content activity analysis results is referenced by the video encoding process.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: December 3, 2024
    Assignee: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Ping-Han Lee, Tzu-Yun Tseng
  • Publication number: 20240388717
    Abstract: A video encoding apparatus includes a content activity analyzer circuit and a video encoder circuit. The content activity analyzer circuit applies a content activity analysis process to a plurality of frames, and generate a plurality of content activity analysis results, wherein the plurality of frames are derived from a plurality of input frames of the video encoding apparatus. The video encoder circuit performs a video encoding process to generate a bitstream output of the video encoding apparatus. At least one frame is not encoded into the bitstream output according to the plurality of content activity analysis results.
    Type: Application
    Filed: July 25, 2024
    Publication date: November 21, 2024
    Applicant: MEDIATEK INC.
    Inventors: Chin-Jung Yang, Chun-Kai Huang, Ping-Han Lee, Tzu-Yun Tseng, Tung-Hsing Wu
  • Publication number: 20240237824
    Abstract: An anti-overturning device for cabinet and its cabinet structure is disclosed in the present invention. The anti-overturning device comprises a first fixing member, a second fixing component and a connecting part. The first fixing component is used for arranging detachably on the outside of the cabinet bottom. The second fixing component includes at least a second opening, and the second opening is used for fixing on the auxiliary wheel or on the ground. The anti-overturning devices are provided evenly on the periphery of the cabinet bottom. The anti-overturning devices change the horizontal position of the original overturning pivot of the cabinet and enlarge the overturning angle to prevent from overturning the cabinet.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 18, 2024
    Inventors: SHENG-CHING CHUANG, Tung-Hsing Wu
  • Publication number: 20240080452
    Abstract: A video encoder with quality estimation is shown. The video encoder has a video compressor, a video reconstructor, a quality estimator, and an encoder top controller. The video compressor receives the source data of a video to generate compressed data. The video reconstructor is coupled to the video compressor for generation of playback-level data that is buffered for inter prediction by the video compressor, wherein the video reconstructor generates intermediate data and, based on the intermediate data, the video reconstructor generates playback-level data. The quality estimator is coupled to the video reconstructor to receive the intermediate data. Quality estimation is performed based on the intermediate data rather than the playback-level data. Based on the quality estimation result, the encoder top controller adjusts at least one video compression factor in real time.
    Type: Application
    Filed: July 12, 2023
    Publication date: March 7, 2024
    Inventors: Tung-Hsing WU, Chih-Hao CHANG, Yi-Fan CHANG, Han-Liang CHOU
  • Patent number: 11882277
    Abstract: A video encoding method includes: during a first period, performing an encoding process upon a first block group of a current frame to generate a first block group bitstream; and during a second period, transmitting a second block group bitstream derived from encoding a second block group of the current frame, wherein the second period overlaps the first period. The encoding process includes: during a first time segment of the first period, performing a first in-loop filtering process upon a first group of pixels; and during a second time segment of the first period, performing a second in-loop filtering process upon a second group of pixels, wherein the second time segment overlaps the first time segment, and a non-zero pixel distance exists between a first edge pixel of the first group of pixels and a second edge pixel of the second group of pixels in a filter direction.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: January 23, 2024
    Assignee: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Shih-Yu Chen, Jer-Ming Chang, Chih-Hao Chang, Han-Liang Chou
  • Publication number: 20230217027
    Abstract: A video encoding apparatus includes a content activity analyzer circuit and a video encoder circuit. The content activity analyzer circuit applies a content activity analysis process to consecutive frames, to generate content activity analysis results. The consecutive frames are derived from input frames of the video encoding apparatus. The content activity analysis process includes: deriving a first content activity analysis result according to a first frame and a second frame in the consecutive frames, wherein the first content activity analysis result includes a processed frame distinct from the second frame; and deriving a second content activity analysis result according to a third frame included in the consecutive frames and the processed frame. The video encoder circuit performs a video encoding process to generate a bitstream output of the video encoding apparatus, wherein information derived from the content activity analysis results is referenced by the video encoding process.
    Type: Application
    Filed: August 22, 2022
    Publication date: July 6, 2023
    Applicant: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Ping-Han Lee, Tzu-Yun Tseng
  • Publication number: 20220360775
    Abstract: A video encoding method includes: during a first period, performing an encoding process upon a first block group of a current frame to generate a first block group bitstream; and during a second period, transmitting a second block group bitstream derived from encoding a second block group of the current frame, wherein the second period overlaps the first period. The encoding process includes: during a first time segment of the first period, performing a first in-loop filtering process upon a first group of pixels; and during a second time segment of the first period, performing a second in-loop filtering process upon a second group of pixels, wherein the second time segment overlaps the first time segment, and a non-zero pixel distance exists between a first edge pixel of the first group of pixels and a second edge pixel of the second group of pixels in a filter direction.
    Type: Application
    Filed: April 21, 2022
    Publication date: November 10, 2022
    Applicant: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Shih-Yu Chen, Jer-Ming Chang, Chih-Hao Chang, Han-Liang Chou
  • Patent number: 11257687
    Abstract: A method for repairing etching damage on a nitride-based epitaxial layer of an optoelectronic device and an optoelectronic device attributable thereto are provided. The method includes: providing a nitrogen-containing working liquid and a annealing apparatus having a reaction chamber; heating the reaction chamber to a predetermined temperature; atomizing the nitrogen-containing working liquid, and introducing the thus formed nitrogen-containing spray into the reaction chamber; and subjecting the optoelectronic device to an annealing treatment in the reaction chamber in the presence of the nitrogen-containing spray, so as to repair the etching damage on the nitride-based epitaxial layer.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: February 22, 2022
    Assignee: National Chung-Hsing University
    Inventors: Tung-Hsing Wu, Shuo-Huang Yuan, Chih-Yi Yang
  • Patent number: 11166029
    Abstract: A video encoding apparatus includes a data buffer and a video encoding circuit. Encoding of a first frame includes: deriving reference pixels of a reference frame from reconstructed pixels of the first frame, respectively, and storing reference pixel data into the data buffer for inter prediction, wherein the reference pixel data include information of pixel values of the reference pixels. Encoding of a second frame includes performing prediction upon a coding unit in the second frame to determine a target predictor for the coding unit. The prediction performed upon the coding unit includes: determining the target predictor for the coding unit according to whether a search range on the reference frame for finding a predictor of the coding unit under an inter prediction mode includes at least one reference pixel of the reference frame that is not accessible to the video encoding circuit.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: November 2, 2021
    Assignee: MEDIATEK INC.
    Inventors: Li-Heng Chen, Tung-Hsing Wu, Yi-Hsin Huang, Lien-Fei Chen, Ting-An Lin, Han-Liang Chou
  • Publication number: 20210195207
    Abstract: A video encoding apparatus includes a data buffer and a video encoding circuit. Encoding of a first frame includes: deriving reference pixels of a reference frame from reconstructed pixels of the first frame, respectively, and storing reference pixel data into the data buffer for inter prediction, wherein the reference pixel data include information of pixel values of the reference pixels. Encoding of a second frame includes performing prediction upon a coding unit in the second frame to determine a target predictor for the coding unit. The prediction performed upon the coding unit includes: determining the target predictor for the coding unit according to whether a search range on the reference frame for finding a predictor of the coding unit under an inter prediction mode includes at least one reference pixel of the reference frame that is not accessible to the video encoding circuit.
    Type: Application
    Filed: March 3, 2021
    Publication date: June 24, 2021
    Inventors: Li-Heng Chen, Tung-Hsing Wu, Yi-Hsin Huang, Lien-Fei Chen, Ting-An Lin, Han-Liang Chou
  • Patent number: 10972738
    Abstract: A video encoding apparatus includes a data buffer and a video encoding circuit. Encoding of a first frame includes: deriving reference pixels of a reference frame from reconstructed pixels of the first frame, respectively, and storing reference pixel data into the data buffer for inter prediction, wherein the reference pixel data include information of pixel values of the reference pixels. Encoding of a second frame includes performing prediction upon a coding unit in the second frame to determine a target predictor for the coding unit. The prediction performed upon the coding unit includes: checking if a search range on the reference frame for finding a predictor of the coding unit under an inter prediction mode includes at least one reference pixel of the reference frame that is not accessible to the video encoding circuit, and determining the target predictor for the coding unit according to a checking result.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: April 6, 2021
    Assignee: MEDIATEK INC.
    Inventors: Li-Heng Chen, Tung-Hsing Wu, Yi-Hsin Huang, Lien-Fei Chen, Ting-An Lin, Han-Liang Chou
  • Patent number: 10917662
    Abstract: An encoding method is used for encoding an image. The image includes a plurality of blocks each having a plurality of pixels. The encoding method includes: encoding a plurality of data partitions of block data of a block in the image to generate a plurality of compressed bitstream segments, respectively; and combining the compressed bitstream segments to generate an output bitstream of the block. A bit group based interleaving process is involved in generating the output bitstream. According to the bit group based interleaving process, each of the compressed bitstream segments is divided into a plurality of bit groups each having at least one bit, and the output bitstream includes consecutive bit groups belonging to different compressed bitstream segments, respectively.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: February 9, 2021
    Assignee: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Ting-An Lin, I-Hsuan Lee, Han-Liang Chou
  • Patent number: 10904577
    Abstract: A video compression system includes a video encoder and a bitstream processing circuit. The video encoder is hardware that performs hardware video encoding upon frames to generate a first bitstream. The first bitstream is output from an entropy encoding circuit of the video encoder. The bitstream processing circuit performs a bitstream post-processing operation upon the first bitstream to produce a second bitstream that is different from the first bitstream, and outputs the second bitstream as a compression output of the frames.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: January 26, 2021
    Assignee: MEDIATEK INC.
    Inventors: Li-Heng Chen, Chung-Hua Tsai, Tung-Hsing Wu, Lien-Fei Chen, Yu-Kun Lin, Yi-Hsin Huang, Han-Liang Chou
  • Patent number: 10805519
    Abstract: A perception-based image processing apparatus includes an image analyzing circuit and an application circuit. The image analyzing circuit obtains training data, sets a perception model according to the training data, performs an object detection of at least one frame, and generates an object detection information signal based at least partly on a result of the object detection of said at least one frame. The application circuit operates in response to the object detection information signal.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: October 13, 2020
    Assignee: MEDIATEK INC.
    Inventors: Tsu-Ming Liu, Chang-Hung Tsai, Tung-Hsing Wu, Jia-Ying Lin, Li-Heng Chen, Han-Liang Chou, Chi-Cheng Ju
  • Patent number: 10715813
    Abstract: A block prediction search method includes at least following steps: utilizing a data buffer to store bit-depth reduced sample values of a plurality of samples in a first pixel line; detecting occurrence of an edge in the first pixel line according to restored sample values derived from stored sample values in the data buffer; and determining a block prediction vector for a pixel group in a second pixel line different from the first pixel line, wherein the block prediction vector is determined based at least partly on a last edge count value indicative of a number of samples in the first pixel line that have gone by since the edge occurs.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: July 14, 2020
    Assignee: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Kun-Bin Lee
  • Patent number: 10645385
    Abstract: A video encoder includes a video encoding circuit and a slice decision circuit. The video encoding circuit encodes a first slice in a frame according to a first coding unit boundary between an end of the first slice and a start of a second slice in the frame, and outputs a first bitstream of the first slice. The slice decision circuit predicts the first coding unit boundary before a bitstream of a last coding unit of the first slice is generated by the video encoding circuit, and informs the video encoding circuit of the first coding unit boundary. The video encoding circuit refers to the first coding unit boundary predicted by the slice decision circuit to ensure that a bitstream size of the first bitstream is constrained by a predetermined bitstream size threshold.
    Type: Grant
    Filed: June 10, 2018
    Date of Patent: May 5, 2020
    Assignee: MEDIATEK INC.
    Inventors: Li-Heng Chen, Lien-Fei Chen, Tung-Hsing Wu, Han-Liang Chou
  • Patent number: 10602192
    Abstract: An entropy encoder includes an entropy encoding circuit and a size determining circuit. The entropy encoding circuit receives symbols of a pixel group, and entropy encodes data derived from the symbols of the pixel group to generate a bitstream segment which is composed of a first bitstream portion and a second bitstream portion. The first bitstream portion contains encoded magnitude data of the symbols of the pixel group, and the second bitstream portion contains encoded sign data of at least a portion of the symbols of the pixel group. The size determining circuit determines a size of a bitstream portion, wherein the bitstream portion comprises at least one of the first bitstream portion and the second bitstream portion.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: March 24, 2020
    Assignee: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Li-Heng Chen, Han-Liang Chou
  • Patent number: 10575000
    Abstract: A method and apparatus of image coding performed at an encoder or decoder using block prediction are disclosed. The block vector bit-count information associated with one or more block vectors (BVs) for the current block is determined, where the BVs are used to locate one or more block predictors for the current block. Prediction residuals corresponding to differences between the current block and the block predictors are determined. A first cost comprising the BV and residual bit-count information associated with encoding the prediction residuals using the first coding tool is determined. The second cost comprising the BV bit-count information and without the residual bit-count information is also determined. The derivation of the BV bit-count information and the prediction residuals for the current block are performed only once, and the BV bit-count information and the prediction residuals are used by the first coding tool and the second coding tool.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: February 25, 2020
    Assignee: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Li-Heng Chen, Han-Liang Chou
  • Publication number: 20200043749
    Abstract: A method for repairing etching damage on a nitride-based epitaxial layer of an optoelectronic device and an optoelectronic device attributable thereto are provided. The method includes: providing a nitrogen-containing working liquid and a annealing apparatus having a reaction chamber; heating the reaction chamber to a predetermined temperature; atomizing the nitrogen-containing working liquid, and introducing the thus formed nitrogen-containing spray into the reaction chamber; and subjecting the optoelectronic device to an annealing treatment in the reaction chamber in the presence of the nitrogen-containing spray, so as to repair the etching damage on the nitride-based epitaxial layer.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Tung-Hsing WU, Shuo-Huang YUAN, Chih-Yi YANG