Patents by Inventor Phuan Boon Chong

Phuan Boon Chong 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).

  • Two stage power supply circuit for independently supplying power to first and second components of a digital processing system
    Patent number: 7076670
    Abstract: A power supply circuit for a digital processing system. A first stage of the power supply circuit is used to generate power for a first component of the digital processing system and to drive a second stage of the power supply circuit. The second stage of the power supply circuit supports a second component of the digital processing system. The first and second stages of the power supply circuit are electrically connected to each other.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: July 11, 2006
    Assignee: Apple Computer, Inc.
    Inventors: Peter Krause, Phuan Boon Chong