Patents by Inventor Yoh-ichi Fujisaka

Yoh-ichi Fujisaka 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).

  • Patent number: 7457741
    Abstract: A device (1) for transmitting speech information to the human body, comprising: a microphone (2) for inputting speech from an external source; a speech signal processor (20) that produces a consonant-clarified signal based on the input speech signal; a carrier signal generator (6) that produces a carrier signal; an amplitude modulator (8) that modulates the amplitude of the carrier signal based on the consonant-clarified signal; and a vibrator (12) that transmits mechanical vibrations based on the amplitude-modulated output signal; the speech signal processor (20) comprising: a consonant extracting unit that extracts the consonant parts from the speech signal; and a repetition processing unit that adds the extracted consonant parts to the speech signal to produce a consonant-clarified signal in which each of the consonant parts of the speech signal is repeated two or more times. This speech information transmitting device realizes good discriminability of speech information.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: November 25, 2008
    Assignee: National Institute of Advnaced Industrial Science and Technology
    Inventors: Seiji Nakagawa, Kiyoshi Fujimoto, Yoh-ichi Fujisaka, Yosuke Okamoto
  • Publication number: 20050222845
    Abstract: A device (1) for transmitting speech information to the human body, comprising: a microphone (2) for inputting speech from an external source; a speech signal processor (20) that produces a consonant-clarified signal based on the input speech signal; a carrier signal generator (6) that produces a carrier signal; an amplitude modulator (8) that modulates the amplitude of the carrier signal based on the consonant-clarified signal; and a vibrator (12) that transmits mechanical vibrations based on the amplitude-modulated output signal; the speech signal processor (20) comprising: a consonant extracting unit that extracts the consonant parts from the speech signal; and a repetition processing unit that adds the extracted consonant parts to the speech signal to produce a consonant-clarified signal in which each of the consonant parts of the speech signal is repeated two or more times. This speech information transmitting device realizes good discriminability of speech information.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 6, 2005
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Seiji Nakagawa, Kiyoshi Fujimoto, Yoh-ichi Fujisaka, Yosuke Okamoto