Patents by Inventor Chao-Chi Yeh

Chao-Chi Yeh 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: 20230115938
    Abstract: A method for outputting a grayscale data, a driving controller, and a display apparatus are provided. The method includes: in response to receiving a first input grayscale data which is not greater than a first threshold, generating a first output grayscale data without performing a dither computing on the first input grayscale data and outputting the first output grayscale data; in response to receiving a second input grayscale data which is greater than a second threshold, generating a first dithered grayscale data by performing a first dither computing on the second input grayscale data and outputting the first dithered grayscale data as a second output grayscale data. The second threshold is greater than the first threshold, and the second output grayscale data does not comprise any part of the second input grayscale data not processed by the first dither computing.
    Type: Application
    Filed: November 13, 2022
    Publication date: April 13, 2023
    Applicant: Novatek Microelectronics Corp.
    Inventors: Chao-Chi Yeh, Shih-Hsuan Chen, Chun-Ping Niou
  • Patent number: 11501687
    Abstract: An image processing circuit is provided. The image processing circuit includes a dither computing circuit and a blending circuit. The dither computing circuit performs a dither computing on the input grayscale data to generate a dithered grayscale data. The blending circuit receives the input grayscale data and the dithered grayscale data, generates a blending weight by comparing the input grayscale data with a first threshold, and performs a blending computing on the input grayscale data and the dithered grayscale data based on the blending weight to output an output grayscale data.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: November 15, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Chao-Chi Yeh, Shih-Hsuan Chen, Chun-Ping Niou
  • Patent number: 9996911
    Abstract: An image processing device and a related image compression method are applied to filter the fixed pattern noise of an image. The image compression method includes applying characteristic value calculation to the image along a predetermined direction to generate a series of characteristic values, comparing a pixel matrix of the image with the series of characteristic values, and acquiring a difference matrix according to a comparison result. The foresaid difference matrix can be compressed to indicate as a compression datum of the image.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: June 12, 2018
    Assignee: VATICS INC.
    Inventor: Chao-Chi Yeh
  • Patent number: 9904853
    Abstract: A region-based motion detection method and a related monitoring camera device are applied to detect an object's motion on a frame. The region-based motion detection method includes dividing a current frame into a plurality of first template arrays, dividing a first reference frame into a plurality of second template arrays, acquiring characteristic values of one of the first template arrays and a corresponding second template array, comparing the characteristic value of the foresaid first template array with the characteristic value of the corresponding second template array by matching process, and executing motion detection of the current frame according to a matching result.
    Type: Grant
    Filed: December 20, 2015
    Date of Patent: February 27, 2018
    Assignee: VATICS INC.
    Inventors: Te-Wei Hsu, Chao-Chi Yeh
  • Publication number: 20170193640
    Abstract: An image processing device and a related image compression method are applied to filter the fixed pattern noise of an image. The image compression method includes applying characteristic value calculation to the image along a predetermined direction to generate a series of characteristic values, comparing a pixel matrix of the image with the series of characteristic values, and acquiring a difference matrix according to a comparison result. The foresaid difference matrix can be compressed to indicate as a compression datum of the image.
    Type: Application
    Filed: June 28, 2016
    Publication date: July 6, 2017
    Inventor: Chao-Chi Yeh
  • Publication number: 20170084045
    Abstract: A region-based motion detection method and a related monitoring camera device are applied to detect an object's motion on a frame. The region-based motion detection method includes dividing a current frame into a plurality of first template arrays, dividing a first reference frame into a plurality of second template arrays, acquiring characteristic values of one of the first template arrays and a corresponding second template array, comparing the characteristic value of the foresaid first template array with the characteristic value of the corresponding second template array by matching process, and executing motion detection of the current frame according to a matching result.
    Type: Application
    Filed: December 20, 2015
    Publication date: March 23, 2017
    Inventors: Te-Wei Hsu, Chao-Chi Yeh
  • Patent number: 9418600
    Abstract: An apparatus for controlling a display having a backlight module provided with a first set of units and a display panel provided with a second set of units is provided. In one embodiment, the apparatus comprises a reference value generator, a control value generator, and a compensation circuit. The reference value generator generates a reference value representative of a portion of pixels contained in an input image associated with one of the second set of units. The control value generator generates a control value to control one of the first set of units in view of the reference value. The compensation circuit adjusts the portion of pixels contained in the input image in view of the control value. The one of the first units is associated with the one of the second units.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: August 16, 2016
    Assignee: MStar Semiconductor, Inc.
    Inventors: Ren Kuan Liang, Chao-Chi Yeh, Chih-Liang Wang
  • Publication number: 20100302133
    Abstract: An apparatus for controlling a display having a backlight module provided with a first set of units and a display panel provided with a second set of units is provided. In one embodiment, the apparatus comprises a reference value generator, a control value generator, and a compensation circuit. The reference value generator generates a reference value representative of a portion of pixels contained in an input image associated with one of the second set of units. The control value generator generates a control value to control one of the first set of units in view of the reference value. The compensation circuit adjusts the portion of pixels contained in the input image in view of the control value. The one of the first units is associated with the one of the second units.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 2, 2010
    Applicant: MSTAR SEMICONDUCTOR, INC.
    Inventors: Ren Kuan Liang, Chao-Chi Yeh, Chih-Liang Wang