Patents by Inventor Changzheng Kang

Changzheng Kang 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).

  • Reduced keypad entry apparatus and method
    Patent number: 6005498
    Abstract: A reduced keypad entry method and apparatus provides a method and apparatus for entry of words using a small number of keypresses on a reduced keypad (210) having multiple symbols associated with at least one key. The method and apparatus uses validity rules (242) to rearrange the order of presentation of the multiple alphabet symbols associated with a single key on the keypad (210), automatically eliminates the presentation of invalid alphabet symbols, and allows the entry of additional information such as a tone markers. Additionally, the method and apparatus uses a dictionary (244) to convert phonetic syllables into Chinese characters.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: December 21, 1999
    Assignee: Motorola, Inc.
    Inventors: Deshan Yang, Jianlin Chen, Changzheng Kang, Wayne Huang