Patents by Inventor Khen S. Tan

Khen S. Tan 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: 5475336
    Abstract: A small and easy to fabricate programmable current source correction circuit. The correction circuit consists of a first current division circuit for establishing a reference current; a programmable correction current circuit for establishing the amount of correction current required; a second current division circuit for further reducing the reference current into smaller step or resolution; and a source-sink controlling circuit for determining whether the present invention is to operate as a current sink or current source. The present invention consists of substantially less number of circuit modules and can be fully integrated into a single chip which requires substantially smaller chip area and can operates at a substantially higher frequency compared to prior art.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: December 12, 1995
    Assignee: Institute of Microelectronics, National University of Singapore
    Inventors: Raminder J. Singh, Ansuya P. Bhatt, Khen S. Tan