Patents by Inventor Te-Chi Hsiao

Te-Chi Hsiao 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).

  • Patent number: 9565418
    Abstract: An exemplary decoding method of an input video bitstream including a first bitstream and a second bitstream includes: decoding a first picture in the first bitstream; after a required decoded data derived from decoding the first picture is ready for a first decoding operation of a second picture in the first bitstream, performing the first decoding operation; and after a required decoded data derived from decoding the first picture is ready for a second decoding operation of a picture in the second bitstream, performing the second decoding operation, wherein a time period of decoding the second picture in the first bitstream and a time period of decoding the picture in the second bitstream are overlapped in time.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: February 7, 2017
    Assignee: MEDIATEK INC.
    Inventors: Te-Chi Hsiao, Yung-Chang Chang, Ching-Chieh Wang, Shih-Hung Lin, Chi-Cheng Ju
  • Patent number: 9558531
    Abstract: A graphics processing method for three-dimensional images, applied to a first buffer for storing right-view contents and a second buffer for storing left-view contents, includes the following steps: when a current Vsync status indicates that a display engine is not operating within a right Vsync period of a right-view frame, the drawing engine drawing the right-view contents stored in first buffer; when current Vsync status indicates that the display engine is not operating within a left Vsync period of a left-view frame, the drawing engine drawing the left-view contents stored in second buffer; during the right Vsync period of the right-view frame, the display engine displaying right-view contents stored in first buffer; and during the left Vsync period of the left-view frame, the display engine displaying left-view contents stored in second buffer.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 31, 2017
    Assignee: MEDIATEK INC.
    Inventors: Te-Chi Hsiao, Chin-Jung Yang
  • Publication number: 20160078589
    Abstract: A graphics processing method for three-dimensional images, applied to a first buffer for storing right-view contents and a second buffer for storing left-view contents, includes the following steps: when a current Vsync status indicates that a display engine is not operating within a right Vsync period of a right-view frame, the drawing engine drawing the right-view contents stored in first buffer; when current Vsync status indicates that the display engine is not operating within a left Vsync period of a left-view frame, the drawing engine drawing the left-view contents stored in second buffer; during the right Vsync period of the right-view frame, the display engine displaying right-view contents stored in first buffer; and during the left Vsync period of the left-view frame, the display engine displaying left-view contents stored in second buffer.
    Type: Application
    Filed: November 25, 2015
    Publication date: March 17, 2016
    Inventors: Te-Chi Hsiao, Chin-Jung Yang
  • Patent number: 9229650
    Abstract: A graphics processing method for three-dimensional images, applied to a first buffer for storing right-view contents and a second buffer for storing left-view contents, includes the following steps: sending drawing commands respectively related to the right-view contents and the left-view contents to a drawing engine; when a current Vsync status indicates that a display engine is not operating within a right Vsync period of a right-view frame, the drawing engine drawing the right-view contents stored in first buffer; when current Vsync status indicates that the display engine is not operating within a left Vsync period of a left-view frame, the drawing engine drawing the left-view contents stored in second buffer; during the right Vsync period of the right-view frame, the display engine displaying right-view contents stored in first buffer; and during the left Vsync period of the left-view frame, the display engine displaying left-view contents stored in second buffer.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: January 5, 2016
    Assignee: MEDIATEK INC.
    Inventors: Te-Chi Hsiao, Chin-Jung Yang
  • Patent number: 9148647
    Abstract: An embodiment of the invention provides a method performed by a de-multiplexer that is coupled to a front-end stream buffer and a plurality of back-end video buffers. The front-end stream buffer is configured to buffer a plurality of video data units of a video stream. The video stream includes a plurality of subordinate video streams interleaved therein. Each of the back-end video buffers is configured to buffer the video information contained in a corresponding one of the subordinate video streams. First, the de-multiplexer determines whether it is blocked from fetching the video information of a first video data unit buffered in the front-end stream buffer. Then, if being blocked, the de-multiplexer skips accessing the first video data unit and instead fetches the video information of a second video data unit buffered in the front-end stream buffer.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: September 29, 2015
    Assignee: MEDIATEK INC.
    Inventors: Yueh-Lun Lee, Chia-Wei Pan, Kan-Li Huang, Te-Chi Hsiao
  • Publication number: 20140218471
    Abstract: An embodiment of the invention provides a method performed by a de-multiplexer that is coupled to a front-end stream buffer and a plurality of back-end video buffers. The front-end stream buffer is configured to buffer a plurality of video data units of a video stream. The video stream includes a plurality of subordinate video streams interleaved therein. Each of the back-end video buffers is configured to buffer the video information contained in a corresponding one of the subordinate video streams. First, the de-multiplexer determines whether it is blocked from fetching the video information of a first video data unit buffered in the front-end stream buffer. Then, if being blocked, the de-multiplexer skips accessing the first video data unit and instead fetches the video information of a second video data unit buffered in the front-end stream buffer.
    Type: Application
    Filed: February 6, 2013
    Publication date: August 7, 2014
    Applicant: MEDIATEK INC.
    Inventors: Yueh-Lun Lee, Chia-Wei Pan, Kan-Li Huang, Te-Chi Hsiao
  • Patent number: 8786674
    Abstract: A method for performing video display control within a video display system includes: dynamically utilizing two of a plurality of buffers as on-screen buffers for three-dimensional (3D) frames, wherein the plurality of buffers is positioned within the video display system; and during utilizing any of the two of the plurality of buffers as an on-screen buffer, dynamically utilizing at least one other buffer of the plurality of buffers as at least one off-screen buffer for at least one 3D frame. An associated video processing circuit and an associated video display system are also provided. In particular, the video processing circuit is positioned within the video display system, where the video processing circuit operates according to the method.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: July 22, 2014
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Guoping Li, Chin-Jung Yang, Geng Li, Te-Chi Hsiao
  • Publication number: 20140022344
    Abstract: An exemplary decoding method of an input video bitstream including a first bitstream and a second bitstream includes: decoding a first picture in the first bitstream; after a required decoded data derived from decoding the first picture is ready for a first decoding operation of a second picture in the first bitstream, performing the first decoding operation; and after a required decoded data derived from decoding the first picture is ready for a second decoding operation of a picture in the second bitstream, performing the second decoding operation, wherein a time period of decoding the second picture in the first bitstream and a time period of decoding the picture in the second bitstream are overlapped in time.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 23, 2014
    Applicant: MEDIATEK INC.
    Inventors: Te-Chi Hsiao, Yung-Chang Chang, Ching-Chieh Wang, Shih-Hung Lin, Chi-Cheng Ju
  • Patent number: 8570361
    Abstract: An exemplary decoding method of an input video bitstream including a first bitstream and a second bitstream includes: decoding a first picture in the first bitstream; after a required decoded data derived from decoding the first picture is ready for a first decoding operation of a second picture in the first bitstream, performing the first decoding operation; and after a required decoded data derived from decoding the first picture is ready for a second decoding operation of a picture in the second bitstream, performing the second decoding operation, wherein The first bitstream contains pictures of a first view for a 3D video presentation, the second bitstream contains pictures of a second view for the 3D video presentation, and a time period of decoding the second picture in the first bitstream and a time period of decoding the picture in the second bitstream are overlapped in time.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: October 29, 2013
    Assignee: Mediatek Inc.
    Inventors: Te-Chi Hsiao, Yung-Chang Chang, Ching-Chieh Wang, Shih-Hung Lin, Chi-Cheng Ju
  • Publication number: 20130127990
    Abstract: An exemplary video processing apparatus includes a first detection unit, a second detection unit, a format conversion control unit, and a format conversion processing unit. The first detection unit detects a video format of a video input. The second detection unit detects a display capability of a display device. The format conversion control unit determines whether the video input has a three-dimensional (3D) video format or a two-dimensional (2D) video format by referring to the detected video format, determines whether the display device supports a 3D video format or a 2D video format by referring to the detected display capability, and accordingly generates a control signal. The format conversion processing unit is controlled by the control signal to generate a video output satisfying the detected display capability according to the video input when the video input does not satisfy the detected display capability.
    Type: Application
    Filed: October 9, 2010
    Publication date: May 23, 2013
    Inventors: Hung-Der Lin, Te-Chi Hsiao, Bin-Jung Tsai, Kuan-Yi Lin, Chuang-Chi Chiou, Pin-Huan Hsu, Yang-Tse Li, Chi-Cheng Ju
  • Patent number: 8421847
    Abstract: An apparatus is provided for converting two-dimensional video frames to stereoscopic video frames, comprising a comparing unit, a temporal transform operator and a spatial transform operator. The comparing unit receives a sequence of two-dimensional video frames and provides a comparison result indicative of temporal difference data for the sequence of two-dimensional video frames. The temporal transform operator is coupled to the comparing unit for modifying the sequence of two-dimensional video frames according to the comparison result. The spatial transform operator is coupled to the comparing unit and the temporal transform operator for generating a stereoscopic frame pair according to each frame of the modified video frames. The stereoscopic frame pair comprises a left-eye video frame and a right-eye video frame for providing visual differences perceived by human eyes.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: April 16, 2013
    Assignee: Mediatek Inc.
    Inventor: Te-Chi Hsiao
  • Publication number: 20120242663
    Abstract: A graphics processing method for three-dimensional images, applied to a first buffer for storing right-view contents and a second buffer for storing left-view contents, includes the following steps: sending drawing commands respectively related to the right-view contents and the left-view contents to a drawing engine; when a current Vsync status indicates that a display engine is not operating within a right Vsync period of a right-view frame, the drawing engine drawing the right-view contents stored in first buffer; when current Vsync status indicates that the display engine is not operating within a left Vsync period of a left-view frame, the drawing engine drawing the left-view contents stored in second buffer; during the right Vsync period of the right-view frame, the display engine displaying right-view contents stored in first buffer; and during the left Vsync period of the left-view frame, the display engine displaying left-view contents stored in second buffer.
    Type: Application
    Filed: December 22, 2010
    Publication date: September 27, 2012
    Inventors: Te-Chi Hsiao, Chin-Jung Yang
  • Publication number: 20120133732
    Abstract: A method for performing video display control within a video display system includes: dynamically utilizing two of a plurality of buffers as on-screen buffers for three-dimensional (3D) frames, wherein the plurality of buffers is positioned within the video display system; and during utilizing any of the two of the plurality of buffers as an on-screen buffer, dynamically utilizing at least one other buffer of the plurality of buffers as at least one off-screen buffer for at least one 3D frame. An associated video processing circuit and an associated video display system are also provided. In particular, the video processing circuit is positioned within the video display system, where the video processing circuit operates according to the method.
    Type: Application
    Filed: November 26, 2010
    Publication date: May 31, 2012
    Inventors: Guoping Li, Chin-Jung Yang, Geng Li, Te-Chi Hsiao
  • Publication number: 20110285814
    Abstract: An apparatus is provided for converting two-dimensional video frames to stereoscopic video frames, comprising a comparing unit, a temporal transform operator and a spatial transform operator. The comparing unit receives a sequence of two-dimensional video frames and provides a comparison result indicative of temporal difference data for the sequence of two-dimensional video frames. The temporal transform operator is coupled to the comparing unit for modifying the sequence of two-dimensional video frames according to the comparison result. The spatial transform operator is coupled to the comparing unit and the temporal transform operator for generating a stereoscopic frame pair according to each frame of the modified video frames. The stereoscopic frame pair comprises a left-eye video frame and a right-eye video frame for providing visual differences perceived by human eyes.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Applicant: MEDIATEK INC.
    Inventor: Te-Chi Hsiao
  • Publication number: 20110170612
    Abstract: An exemplary decoding method of an input video bitstream including a first bitstream and a second bitstream includes: decoding a first picture in the first bitstream; after a required decoded data derived from decoding the first picture is ready for a first decoding operation of a second picture in the first bitstream, performing the first decoding operation; and after a required decoded data derived from decoding the first picture is ready for a second decoding operation of a picture in the second bitstream, performing the second decoding operation, wherein The first bitstream contains pictures of a first view for a 3D video presentation, the second bitstream contains pictures of a second view for the 3D video presentation, and a time period of decoding the second picture in the first bitstream and a time period of decoding the picture in the second bitstream are overlapped in time.
    Type: Application
    Filed: October 5, 2010
    Publication date: July 14, 2011
    Inventors: Te-Chi Hsiao, Yung-Chang Chang, Ching-Chieh Wang, Shih-Hung Lin, Chi-Cheng Ju
  • Publication number: 20090317057
    Abstract: An apparatus for outputting standard definition (SD) and high-definition (HD) analog signals as high-definition (HD) video according to copy protection is disclosed. The apparatus includes: a determination block, for receiving a specific signal and determining whether the received specific signal has copy protection; and a scaling block, coupled to the determination block, for selectively scaling the received specific signal according to at least a copy protection determination result generated by the determination block.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 24, 2009
    Inventors: Hua Wu, Te-Chi Hsiao, Hau-Jean Hsu
  • Publication number: 20080253451
    Abstract: A method for real-time monitoring time related information in a bitstream by employing a prediction model is disclosed. When a bitstream is inputted to an decoding system, the bitstream having a series of embedded time references is decoded; a current time reference of the bitstream is sequentially supplied to a prediction model in real-time to generate an estimate time reference; determine whether the next time reference is valid based on the estimate time reference; and if the next time reference is determined as invalid, the frame associated with the next time reference is dropped from the bitstream, or the next time reference is corrected. Consequently, the timing of the bitstream is constantly monitored to prevent errors caused by incorrect timing information carried by the bitstream.
    Type: Application
    Filed: April 13, 2007
    Publication date: October 16, 2008
    Inventor: Te- Chi Hsiao