Patents by Inventor Mitsuru Amma

Mitsuru Amma 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).

  • Input signal determining method and apparatus
    Patent number: 5856747
    Abstract: In an input signal determining method and an apparatus for practicing the method, the level of an input signal is detected at least twice with a predetermined period, if the level of the input signal is significant when detected firstly, then before the second detection is started which is carried out in the predetermined period, whether or not the input signal is a continuous input signal whose level is maintained unchanged for a predetermined time is determined, and if the input signal is not the continuous input signal, the result of the first detection is reset, and if the level of the input signal is maintained for the predetermined time, and the level of the input signal is significant when detected secondly, then the input signal is determined as a correct input signal, whereby the erroneous recognition of the input signal can be avoided, and a noise equal in period to the synchronizing signal can be eliminated.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: January 5, 1999
    Assignee: Yazaki Corporation
    Inventors: Mitsuru Amma, Jiro Shiota