Patents by Inventor Takatoshi AKAMATSU

Takatoshi AKAMATSU 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).

  • FREQUENCY SEPARATOR, OPTICAL QUANTIZATION CIRCUIT, OPTICAL A/D CONVERSION SYSTEM, AND OPTICAL SIGNAL PROCESSING SYSTEM
    Publication number: 20230350269
    Abstract: A frequency separator includes a plurality of filters to separate light having a plurality of optical pulses, each of the optical pulses having one of a plurality of frequencies, into a plurality of light components, each of the light components being to have one of a plurality of frequency bands corresponding to the plurality of frequencies, in which among the plurality of filters, a center frequency of a first frequency band of a first filter and a center frequency of a second frequency band, adjacent to the first frequency band, of a second filter are separated beyond a bandwidth of each of the first and second frequency bands.
    Type: Application
    Filed: June 27, 2023
    Publication date: November 2, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Junya NISHIOKA, Takatoshi AKAMATSU, Naoki SUZUKI, Kiyoshi ONOHARA