Patents by Inventor Yasuo Nagaisi

Yasuo Nagaisi 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).

  • Add-compare-select device
    Patent number: 5450338
    Abstract: An add-compare-select device capable of generating a plurality of new path metrics at each point in time on the basis of prescribed combinations between a plurality of input branch metrics and a plurality of stored path metrics, thereby to handle high data transmission rates: is disclosed wherein simplified addition and comparison operations on branch metrics and path metrics are performed concurrently with usual operations for adding these metrics, thereby accomplishing a reduction in the signal processing time.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: September 12, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuhiro Oota, Tomohiro Kimura, Yasuo Nagaisi