Patents by Inventor Sung G. Choi

Sung G. Choi 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 of and apparatus for channel scanning
    Patent number: 5299011
    Abstract: A channel scanning method for reducing scanning time of a channel in automatic channel memory of TV, VCR, or other video appliance is disclosed. To reduce the scanning time, a microcomputer detects synchronization signals for 300 ms after transmitting frequency data for broadcasting channel to tuner and the micom detects synchronization signals for 30 ms per step in dropping frequency data. The synchronization signal detecting time is 360 ms and is shorter than the prior time of 780 ms.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: March 29, 1994
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Sung G. Choi