Patents by Inventor Isamu Takaku

Isamu Takaku 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).

  • Failure detection device, failure detection system, and failure detection method
    Patent number: 10516956
    Abstract: A failure detection device for detecting a failure of a sound generating device outputting a sound based on sound data from a speaker includes: an electronic watermark signal generating unit configured to generate an electronic watermark signal including collation data used for collation of whether or not a sound is output from the speaker; the speaker configured to output the electronic watermark signal as a sound; a microphone configured to collect the sound output from the speaker; a collation data detection unit configured to detect the collation data from the electronic watermark signal included in the sound collected by the microphone; and a failure determination unit configured to determine the presence or absence of the failure of the sound generating device by collating the collation data detected by the collation data detection unit with the collation data included in the electronic watermark signal.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 24, 2019
    Assignee: ALPINE ELECTRONICS, INC.
    Inventors: Taku Sugai, Nozomu Saito, Jyoji Yamada, Isamu Takaku
  • FAILURE DETECTION DEVICE, FAILURE DETECTION SYSTEM, AND FAILURE DETECTION METHOD
    Publication number: 20190342680
    Abstract: A failure detection device for detecting a failure of a sound generating device outputting a sound based on sound data from a speaker includes: an electronic watermark signal generating unit configured to generate an electronic watermark signal including collation data used for collation of whether or not a sound is output from the speaker; the speaker configured to output the electronic watermark signal as a sound; a microphone configured to collect the sound output from the speaker; a collation data detection unit configured to detect the collation data from the electronic watermark signal included in the sound collected by the microphone; and a failure determination unit configured to determine the presence or absence of the failure of the sound generating device by collating the collation data detected by the collation data detection unit with the collation data included in the electronic watermark signal.
    Type: Application
    Filed: April 17, 2019
    Publication date: November 7, 2019
    Applicant: ALPINE ELECTRONICS, INC.
    Inventors: Taku Sugai, Nozomu Saito, Jyoji Yamada, Isamu Takaku