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. 02, 2014
Filed:
Jul. 18, 2012
Koichi Goto, Kariya, JP;
Koichi Goto, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
An ultrasonic generation element provides a primary resonance portion existing in an ultrasonic frequency band, and is caused to perform only a notice sound generation by parametric speaker. An audible-sound generation piezoelectric speaker provides a primary resonance portion existing in an audible frequency band, and is caused to switch between a notice sound generation by dynamic speaker and a notice sound generation by parametric speaker, based on vehicular information. Under a predetermined low vehicle speed, a notice sound is generated in both (i) an area ahead of a vehicle and distant from the vehicle, and (ii) an area surrounding the vehicle. When the vehicle speed increases, a notice sound is generated at a position ahead of the vehicle and more distant from the vehicle.