Patents by Inventor Sigeo Sakaue

Sigeo Sakaue 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).

  • Waveform signal equalizing method and apparatus and signal recording and reproducing apparatus
    Patent number: 5802505
    Abstract: A learning type signal recording and reproducing apparatus has a signal detector for detecting signals recorded on recording media, a teaching signal generator for generating reference teaching signals having predetermined waveform signal patterns, and a learning type waveform converter for generating converting rules from signals recorded on the recording medium to original signals corresponding to the recorded signals, by learning the relationship between the detection results by the signal detector of teaching signals recorded on the recording media and reference teaching signals outputted by the teaching signal generator. With this apparatus, signals can be stably reproduced even if the signals contain distortion caused by noise or difference in the recording media.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: September 1, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Susumu Maruno, Sigeo Sakaue, Yasuharu Simeki, Taro Imagawa, Toshiyuki Kouda