Patents by Inventor Hong-Chu Chen

Hong-Chu Chen 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: 11656716
    Abstract: A control method for an optical fingerprint sensor and a touch controller is provided, for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of configuring at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line to be floating when the touch controller is in a touch operation period.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: May 23, 2023
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Tsen-Wei Chang, Chih-Peng Hsia, Wei-Lun Shih, Hong-Chu Chen, Su-Wei Lien, Sheng-Wen Hsiao, Liang-Chi Cheng
  • Publication number: 20220197466
    Abstract: A control method for an optical fingerprint sensor and a touch controller is provided, for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of configuring at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line to be floating when the touch controller is in a touch operation period.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Applicant: NOVATEK Microelectronics Corp.
    Inventors: Tsen-Wei Chang, Chih-Peng Hsia, Wei-Lun Shih, Hong-Chu Chen, Su-Wei Lien, Sheng-Wen Hsiao, Liang-Chi Cheng
  • Patent number: 11308306
    Abstract: A control method for an optical fingerprint sensor and a touch controller are provided for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of applying an anti-loading driving (ALD) signal on at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line when the touch controller is in a touch operation period.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: April 19, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Tsen-Wei Chang, Chih-Peng Hsia, Wei-Lun Shih, Hong-Chu Chen, Su-Wei Lien, Sheng-Wen Hsiao, Liang-Chi Cheng
  • Patent number: 11295108
    Abstract: A control method for an optical fingerprint sensor is provided for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes a plurality of steps, and the steps are applying a first anti-loading driving (ALD) signal on the second control signal line, and applying a second ALD signal on at least one of the first control signal line, the first voltage source line, the second voltage source line and the sensing line.
    Type: Grant
    Filed: June 20, 2020
    Date of Patent: April 5, 2022
    Assignee: NOVATEK Microeletronics Corp.
    Inventors: Tsen-Wei Chang, Chih-Peng Hsia, Wei-Lun Shih, Hong-Chu Chen, Su-Wei Lien, Sheng-Wen Hsiao, Liang-Chi Cheng
  • Publication number: 20210081640
    Abstract: The present invention provides a control method for an optical fingerprint sensor and a touch controller. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of applying an anti-loading driving (ALD) signal on at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line when the touch controller is in a touch operation period.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 18, 2021
    Inventors: Tsen-Wei Chang, Chih-Peng Hsia, Wei-Lun Shih, Hong-Chu Chen, Su-Wei Lien, Sheng-Wen Hsiao, Liang-Chi Cheng
  • Publication number: 20200342196
    Abstract: The present invention provides a control method for an optical fingerprint sensor. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes a plurality of steps, and the steps are applying a first anti-loading driving (ALD) signal on the second control signal line, and applying a second ALD signal on at least one of the first control signal line, the first voltage source line, the second voltage source line and the sensing line.
    Type: Application
    Filed: June 20, 2020
    Publication date: October 29, 2020
    Inventors: Tsen-Wei Chang, Chih-Peng Hsia, Wei-Lun Shih, Hong-Chu Chen, Su-Wei Lien, Sheng-Wen Hsiao, Liang-Chi Cheng
  • Patent number: 10176129
    Abstract: A control method for a first device of an inter-integrated circuit (I2C) system including a microcontroller unit (MCU), includes receiving a first indication from the MCU of the I2C system, wherein the first indication configures the first device from a slave mode to a master mode; polling the first device itself for status information of the first device when the first device is in the master mode; determining whether the status information of the first device matches a target status after polling; and determining to perform a parameter adjustment on a second device of the I2C system when determining that the status information of the first device matches the target status.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: January 8, 2019
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Chih-Huang Lin, Hong-Chu Chen, Min-Hui Chu, Chin-Hui Huang, Wei-Lung Liu, Tai-Yu Chiu, Chao-Chun Huang, Su-Wei Lien
  • Publication number: 20170371819
    Abstract: A control method for a first device of an inter-integrated circuit (I2C) system including a microcontroller unit (MCU), includes receiving a first indication from the MCU of the I2C system, wherein the first indication configures the first device from a slave mode to a master mode; polling the first device itself for status information of the first device when the first device is in the master mode; determining whether the status information of the first device matches a target status after polling; and determining to perform a parameter adjustment on a second device of the I2C system when determining that the status information of the first device matches the target status.
    Type: Application
    Filed: July 19, 2016
    Publication date: December 28, 2017
    Inventors: Chih-Huang Lin, Hong-Chu Chen, Min-Hui Chu, Chin-Hui Huang, Wei-Lung Liu, Tai-Yu Chiu, Chao-Chun Huang, Su-Wei Lien
  • Patent number: 9530231
    Abstract: A method for generating masking image using general polygonal mask includes receiving a pixel of a raw image and a polygon vertices array corresponding to a polygonal mask, determining whether the pixel is inside the polygonal mask, labeling the pixel to be a masked pixel if the pixel is inside the polygonal mask, or labeling the pixel to be a visible pixel if the pixel is outside the polygonal mask, and outputting the masked pixel or the visible pixel to generate the masking image.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: December 27, 2016
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Jau-Hong Kao, Shiang-Fei Wang, Yi-Jen Wu, Chih-Huang Lin, Min-Hui Chu, Hong-Chu Chen, Chi-Fan Liou
  • Publication number: 20160260235
    Abstract: A method for generating masking image using general polygonal mask includes receiving a pixel of a raw image and a polygon vertices array corresponding to a polygonal mask, determining whether the pixel is inside the polygonal mask, labeling the pixel to be a masked pixel if the pixel is inside the polygonal mask, or labeling the pixel to be a visible pixel if the pixel is outside the polygonal mask, and outputting the masked pixel or the visible pixel to generate the masking image.
    Type: Application
    Filed: March 5, 2015
    Publication date: September 8, 2016
    Inventors: Jau-Hong Kao, Shiang-Fei Wang, Yi-Jen Wu, Chih-Huang Lin, Min-Hui Chu, Hong-Chu Chen, Chi-Fan Liou
  • Patent number: 7649422
    Abstract: A real time clock integrated circuit (RTC IC) and an electronic apparatus thereof are provided. In the RTC IC, only a low-power oscillator is used for generating a standard clock for a real time counter, and the standard clock with a frequency drift of the low-power oscillator is compensated through table lookup. Accordingly, the power consumption, fabrication cost and design complexity of the RTC IC are reduced and the counting operation duration of the RTC IC is prolonged.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: January 19, 2010
    Assignee: Novatek Microelectronics Corp.
    Inventors: Hong-Chu Chen, Jiann-Ming Shiau
  • Publication number: 20080246549
    Abstract: A real time clock integrated circuit (RTC IC) and an electronic apparatus thereof are provided. In the RTC IC, only a low-power oscillator is used for generating a standard clock for a real time counter, and the standard clock with a frequency drift of the low-power oscillator is compensated through table lookup. Accordingly, the power consumption, fabrication cost and design complexity of the RTC IC are reduced and the counting operation duration of the RTC IC is prolonged.
    Type: Application
    Filed: June 25, 2007
    Publication date: October 9, 2008
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hong-Chu Chen, Jiann-Ming Shiau