Patents by Inventor Keigo TARUISHI

Keigo TARUISHI 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).

  • Audio system for elevator
    Patent number: 11751001
    Abstract: An audio system for an elevator includes two or more speaker cabinets arranged inside a suspended ceiling fixed to a ceiling board of a car of the elevator, an input device to which sound content radiated to an inside of the car from each of the two or more speaker cabinets are input, and a sound field control device configured to conduct phase control and reverberation time control for the sound content and thereby cause a sound wave based on the sound content to be radiated from the speaker cabinet to the inside of the car. Each of the speaker cabinets includes a casing arranged inside the suspended ceiling, and a speaker unit arranged inside the casing and having a radiation surface that radiates the sound wave.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: September 5, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Susumu Fujiwara, Keigo Taruishi, Masami Aikawa
  • AUDIO SYSTEM FOR ELEVATOR
    Publication number: 20230060349
    Abstract: An audio system for an elevator includes two or more speaker cabinets arranged inside a suspended ceiling fixed to a ceiling board of a car of the elevator, an input device to which sound content radiated to an inside of the car from each of the two or more speaker cabinets are input, and a sound field control device configured to conduct phase control and reverberation time control for the sound content and thereby cause a sound wave based on the sound content to be radiated from the speaker cabinet to the inside of the car. Each of the speaker cabinets includes a casing arranged inside the suspended ceiling, and a speaker unit arranged inside the casing and having a radiation surface that radiates the sound wave.
    Type: Application
    Filed: March 13, 2020
    Publication date: March 2, 2023
    Inventors: Susumu FUJIWARA, Keigo TARUISHI, Masami AIKAWA