Patents by Inventor Wee Siong Low

Wee Siong Low 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).

  • ESD PROTECTION CIRCUIT AND METHOD
    Publication number: 20120008241
    Abstract: An ESD protection circuit for reducing the regulator output capacitance includes a ground isolation circuit or a VCC isolation circuit to isolate regulator output from ground terminal or VCC terminal whenever ESD occurs, causing dropping of the differential voltage between regulator output and ground. The isolation circuits function to minimize the leakage current.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 12, 2012
    Applicants: PANASONIC SEMICONDUCTOR ASIA PTE., LTD., PANASONIC CORPORATION
    Inventors: Richard Hernandez GARCIA, Kian Teck TEO, Yoshinori ISHIKAWA, Wee Siong LOW, Terence Jin Min LIM
  • Ground detection circuit for video signal driver to prevent large clamp transistor current
    Patent number: 7903384
    Abstract: A large current flowing out from video signal line driver is prevented whenever the video signal line is being grounded. The system includes a video signal line driver circuit transmitting video signal at pre-determined DC level, a large current prevention circuit detecting video signal line being shorted to ground and cut-off excessive current source out from video signal line driver circuit into video signal line, a start-up time enhancement circuit improving start-up time of ground detection circuit so that system start-up time is not limited by large current prevention circuit, and a switching threshold control circuit setting the switching threshold of large current prevention circuit and start-up time enhancement circuit.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: March 8, 2011
    Assignees: Panasonic Corporation, Panasonic Semiconductor Asia Pte. Ltd.
    Inventors: Wee Siong Low, Jun Chao Tan, Yoshinori Ishikawa
  • GROUND DETECTION CIRCUIT FOR VIDEO SIGNAL DRIVER TO PREVENT LARGE CLAMP TRANSISTOR CURRENT
    Publication number: 20100134698
    Abstract: A large current flowing out from video signal line driver is prevented whenever the video signal line is being grounded. The system includes a video signal line driver circuit transmitting video signal at pre-determined DC level, a large current prevention circuit detecting video signal line being shorted to ground and cut-off excessive current source out from video signal line driver circuit into video signal line, a start-up time enhancement circuit improving start-up time of ground detection circuit so that system start-up time is not limited by large current prevention circuit, and a switching threshold control circuit setting the switching threshold of large current prevention circuit and start-up time enhancement circuit.
    Type: Application
    Filed: November 28, 2008
    Publication date: June 3, 2010
    Applicants: PANASONIC CORPORATION, PANASONIC SEMICONDUCTOR ASIA PTE. LTD.
    Inventors: Wee Siong LOW, Jun Chao TAN, Yoshinori ISHIKAWA