Patents by Inventor Lee Tak Chun

Lee Tak Chun 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).

  • System and method for driving LCD displays
    Patent number: 6937212
    Abstract: A system and method for driving a liquid crystal display (LCD) having at least one segment. The system includes an LCD driver connected to a segment of the LCD. A processor is connected to the LCD driver. The processor may be selectively configured into any of at least two multiplexing modes, where the at least two multiplexing modes produce at least three voltage levels for driving the at least one segment of the LCD. Another embodiment includes a system and method for driving an LCD having a segment including a first and second electrode. An LCD driver is coupled to the first and second electrode. A processor is coupled the LCD driver. The processor initiates a substantially periodic signal on the first electrode and a delay signal having a time delay relative to the substantially periodic signal. The signals on the first and second electrodes form an RMS voltage to drive the segment of the LCD to any of at least three display voltage levels.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: August 30, 2005
    Assignee: Fossil, Inc.
    Inventors: Donald R. Brewer, Lee Tak Chun
  • System and method for driving LCD displays
    Patent number: 6618327
    Abstract: A system and method for driving a liquid crystal display (LCD) having at least one segment. The system includes an LCD driver connected to a segment of the LCD. A processor may be selectively configured into any of at least two multiplexing modes, where the at least two multiplexing modes produce at least three voltage levels for driving the at least one segment of the LCD.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: September 9, 2003
    Assignee: Fossil, Inc.
    Inventors: Donald R. Brewer, Lee Tak Chun
  • System and method for driving LCD displays
    Publication number: 20020181335
    Abstract: A system and method for driving a liquid crystal display (LCD) having at least one segment. The system includes an LCD driver connected to a segment of the LCD. A processor is connected to the LCD driver. The processor may be selectively configured into any of at least two multiplexing modes, where the at least two multiplexing modes produce at least three voltage levels for driving the at least one segment of the LCD. Another embodiment includes a system and method for driving an LCD having a segment including a first and second electrode. An LCD driver is coupled to the first and second electrode. A processor is coupled the LCD driver. The processor initiates a substantially periodic signal on the first electrode and a delay signal having a time delay relative to the substantially periodic signal. The signals on the first and second electrodes form an RMS voltage to drive the segment of the LCD to any of at least three display voltage levels.
    Type: Application
    Filed: July 19, 2002
    Publication date: December 5, 2002
    Inventors: Donald R. Brewer, Lee Tak Chun
  • System and method for driving LCD displays
    Publication number: 20020163859
    Abstract: A system and method for driving a liquid crystal display (LCD) having at least one segment. The system includes an LCD driver connected to a segment of the LCD. A processor is connected to the LCD driver. The processor may be selectively configured into any of at least two multiplexing modes, where the at least two multiplexing modes produce at least three voltage levels for driving the at least one segment of the LCD. Another embodiment includes a system and method for driving an LCD having a segment including a first and second electrode. An LCD driver is coupled to the first and second electrode. A processor is coupled the LCD driver. The processor initiates a substantially periodic signal on the first electrode and a delay signal having a time delay relative to the substantially periodic signal. The signals on the first and second electrodes form an RMS voltage to drive the segment of the LCD to any of at least three display voltage levels.
    Type: Application
    Filed: May 1, 2001
    Publication date: November 7, 2002
    Applicant: Fossil, Inc.
    Inventors: Donald R. Brewer, Lee Tak Chun