Patents by Inventor Mitsuo Shida

Mitsuo Shida 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).

  • Amplifier for music signal and method of outputting waveform of music signal
    Patent number: 11670272
    Abstract: An amplifier and a method of outputting a waveform of a music signal capable of outputting a waveform of a music signal exceeding a power supply voltage is provided. An amplifier includes a power supply, an input terminal for a music signal, an amplifying circuit which amplifies the music signal using the power supply, and a jumping-up circuit which is connected to an output end of the amplifying circuit and outputs a waveform exceeding a voltage value of the power supply.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: June 6, 2023
    Assignee: Roland Corporation
    Inventors: Mitsuo Shida, Yoshinobu Morimoto, Kosuke Takada
  • Distortion imparting device and distortion imparting method
    Patent number: 11233491
    Abstract: A distortion imparting device capable of obtaining a natural distortion effect even when output is decreased is provided. The distortion imparting device includes a first amplification part which attenuates an input audio signal on the basis of an attenuation factor set by a user and amplifies the attenuated audio signal, a second amplification part serially connected to the first amplification part, and a limiting part which is connected between an output terminal of the first amplification part and an input terminal of the second amplification part and limits an input voltage of the second amplification part to a predetermined clip voltage, wherein the limiting part determines the clip voltage on the basis of the attenuation factor.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: January 25, 2022
    Assignee: Roland Corporation
    Inventors: Mitsuo Shida, Toshiyuki Ochi, Yoshinobu Morimoto, Kosuke Takada
  • AMPLIFIER FOR MUSIC SIGNAL AND METHOD OF OUTPUTTING WAVEFORM OF MUSIC SIGNAL
    Publication number: 20210201879
    Abstract: An amplifier and a method of outputting a waveform of a music signal capable of outputting a waveform of a music signal exceeding a power supply voltage is provided. An amplifier includes a power supply, an input terminal for a music signal, an amplifying circuit which amplifies the music signal using the power supply, and a jumping-up circuit which is connected to an output end of the amplifying circuit and outputs a waveform exceeding a voltage value of the power supply.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Applicant: Roland Corporation
    Inventors: Mitsuo Shida, Yoshinobu Morimoto, Kosuke Takada
  • DISTORTION IMPARTING DEVICE AND DISTORTION IMPARTING METHOD
    Publication number: 20200153400
    Abstract: A distortion imparting device capable of obtaining a natural distortion effect even when output is decreased is provided. The distortion imparting device includes a first amplification part which attenuates an input audio signal on the basis of an attenuation factor set by a user and amplifies the attenuated audio signal, a second amplification part serially connected to the first amplification part, and a limiting part which is connected between an output terminal of the first amplification part and an input terminal of the second amplification part and limits an input voltage of the second amplification part to a predetermined clip voltage, wherein the limiting part determines the clip voltage on the basis of the attenuation factor.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 14, 2020
    Applicant: Roland Corporation
    Inventors: Mitsuo Shida, Toshiyuki Ochi, Yoshinobu Morimoto, Kosuke Takada