Patents by Inventor Ching-Chieh Wu

Ching-Chieh 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).

  • Patent number: 12159567
    Abstract: A gamma tap circuit includes: (i) a first gamma division circuit configured to generate a first gamma tap voltage by performing voltage division of an upper gamma tap voltage and a lower gamma tap voltage, in-sync with a first clock signal CK1 and a first complementary clock signal CK1b, which is 180° out-of-phase relative to CK1, (ii) a second gamma division circuit configured to generate a second gamma tap voltage by performing voltage division of the upper gamma tap voltage and the first gamma tap voltage, in-sync with a second clock signal CK2 and a second complementary clock signal CK2b, which is 180° out-of-phase relative to CK2, and (iii) a third gamma division circuit configured to generate a third gamma tap voltage by performing voltage division of the first gamma tap voltage and the lower gamma tap voltage, in response to CK2 and CK2b, which have a lower frequency relative to CK1 and CK1b.
    Type: Grant
    Filed: September 14, 2023
    Date of Patent: December 3, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ying-Da Chang, Chulho Choi, Yu-Chieh Huang, Ching-Chieh Wu, Hajoon Shin, Zhen-Guo Ding, Jia-Way Chen, Kyunlyeol Lee, Yongjoo Song
  • Publication number: 20240233609
    Abstract: A gamma tap circuit includes: (i) a first gamma division circuit configured to generate a first gamma tap voltage by performing voltage division of an upper gamma tap voltage and a lower gamma tap voltage, in-sync with a first clock signal CK1 and a first complementary clock signal CK1b, which is 180° out-of-phase relative to CK1, (ii) a second gamma division circuit configured to generate a second gamma tap voltage by performing voltage division of the upper gamma tap voltage and the first gamma tap voltage, in-sync with a second clock signal CK2 and a second complementary clock signal CK2b, which is 180° out-of-phase relative to CK2, and (iii) a third gamma division circuit configured to generate a third gamma tap voltage by performing voltage division of the first gamma tap voltage and the lower gamma tap voltage, in response to CK2 and CK2b, which have a lower frequency relative to CK1 and CK1b.
    Type: Application
    Filed: September 14, 2023
    Publication date: July 11, 2024
    Inventors: Ying-Da Chang, Chulho Choi, Yu-Chieh Huang, Ching-Chieh Wu, Hajoon Shin, Zhen-Guo Ding, Jia-Way Chen, Kyunlyeol Lee, Yongjoo Song
  • Publication number: 20240135859
    Abstract: A gamma tap circuit includes: (i) a first gamma division circuit configured to generate a first gamma tap voltage by performing voltage division of an upper gamma tap voltage and a lower gamma tap voltage, in-sync with a first clock signal CK1 and a first complementary clock signal CK1b, which is 180° out-of-phase relative to CK1, (ii) a second gamma division circuit configured to generate a second gamma tap voltage by performing voltage division of the upper gamma tap voltage and the first gamma tap voltage, in-sync with a second clock signal CK2 and a second complementary clock signal CK2b, which is 180° out-of-phase relative to CK2, and (iii) a third gamma division circuit configured to generate a third gamma tap voltage by performing voltage division of the first gamma tap voltage and the lower gamma tap voltage, in response to CK2 and CK2b, which have a lower frequency relative to CK1 and CK1b.
    Type: Application
    Filed: September 13, 2023
    Publication date: April 25, 2024
    Inventors: Ying-Da Chang, Chulho Choi, Yu-Chieh Huang, Ching-Chieh Wu, Hajoon Shin, Zhen-Guo Ding, Jia-Way Chen, Kyunlyeol Lee, Yongjoo Song
  • Patent number: 7342419
    Abstract: A bidirectional current-mode transceiver is provided for improving transmission rates on a transmission line in a manner of current signal transmission, and for reducing the swing of the voltage signal on the transmission line by using a termination resistor, thus improving operating speed. Therefore, the provided transceiver can be applied to a long transmission line.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: March 11, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Hong-Yi Huang, Ching-Chieh Wu, Yuan-Hua Chu
  • Publication number: 20070132483
    Abstract: A bidirectional current-mode transceiver is provided for improving transmission rates on a transmission line in a manner of current signal transmission, and for reducing the swing of the voltage signal on the transmission line by using a termination resistor, thus improving operating speed. Therefore, the provided transceiver can be applied to a long transmission line.
    Type: Application
    Filed: May 30, 2006
    Publication date: June 14, 2007
    Inventors: Hong-Yi Huang, Ching-Chieh Wu, Yuan-Hua Chu