Patents by Inventor Hong-Chang Hsu

Hong-Chang 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).

  • Keyboard and method for switching key code with a single modifier key
    Patent number: 6320519
    Abstract: A keyboard with key codes switchable by means of a single modifier key and a method of control thereof are provided. When a modifier key such as an Alt key, a Ctrl key, or a Shift key is pressed and then immediately released, the set of key codes is switched to another if no other modifiable key stroke is inserted during the press-and-release operation. Consequently, multimedia hot keys will be obtained by switching the key code set to another set of key coding that represents individual multimedia functions.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: November 20, 2001
    Assignee: Acer Peripherals, Inc.
    Inventors: Hong-Chang Hsu, Huang-Hsiao Kao, Min-Shan Chuang