Patents by Inventor Jerry Shih-Pin Hsu

Jerry Shih-Pin Hsu 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).

  • Method and apparatus for increasing the number of keys of a key-matrix
    Patent number: 6417787
    Abstract: An apparatus and a method for increasing the number of keys in a ready made key-matrix , it is necessary to increase some extra diodes and change the keyboard scanning method . To increase some extra keys in the key-matrix, the diodes are in series with the keys, and the keyboard scanning method is executed by detecting the conductive direction of the diodes. The method avoids redesigning any IC to increase I/O ports, therefore, it can save the cost of redesigning and advance the sale.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: July 9, 2002
    Assignee: United Microelectronics Corp.
    Inventor: Jerry Shih-Pin Hsu