Patents by Inventor Yayoi Mochizuki

Yayoi Mochizuki 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).

  • Filter circuit, filtering method and disc rotation control method and apparatus
    Patent number: 5511061
    Abstract: A control signal relating to rotation of a disc or an output signal is selectively output. A selectively output signal is amplified at a first amplification factor. A signal amplified at the first amplification factor and another signal amplified at a second amplification factor are added together. An addition signal is delayed by a first delay time, and output as the output signal. The output signal is delayed by a second delay time, and then output. The signal delayed by the second delay time is amplified at a second amplifying factor, and output as said another signal to be added to the signal amplified at the first amplification factor. Selection between the input signal and the output signal is controlled in accordance with a drive mode of the disc.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: April 23, 1996
    Assignee: Sony Corporation
    Inventors: Ryo Ando, Yayoi Mochizuki