The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2019
Filed:
Oct. 04, 2018
Panasonic Intellectual Property Corporation of America, Torrance, CA (US);
Hiroyuki Kano, Hyogo, JP;
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US);
Abstract
Disclosed is a noise control apparatus which reduces noise at a position away from a head of a passenger in a seat in a room under a noisy environment created by a noise source. The apparatus includes: a weight sensor, and control speakers installed in the seat; a noise detector which detects the noise from the noise source, and outputs a noise signal; a control circuit which obtains the noise signal, and outputs a control signal for reducing the noise to the speakers; and a memory which stores control coefficients each used to generate the control signal for reducing the noise at a position which becomes higher from the seat as the corresponding weight becomes heavier. The circuit reads a coefficient corresponding to a detected weight or a correlation value from the coefficients, and outputs the control signal generated using the noise signal and the read coefficient to the speakers.