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:
Jun. 16, 2015
Filed:
Mar. 01, 2012
Wataru Nakai, Tokyo, JP;
Hiroyuki Kubotani, Hyogo, JP;
Takeshi Toi, Tokyo, JP;
Masayuki Satomi, Tokyo, JP;
Wataru Nakai, Tokyo, JP;
Hiroyuki Kubotani, Hyogo, JP;
Takeshi Toi, Tokyo, JP;
Masayuki Satomi, Tokyo, JP;
Chuo University, Tokyo, JP;
Abstract
A wakefulness-maintaining device capable of maintaining a driver's wakefulness by making the driver aware of changes in sound characteristics. A wakefulness-maintaining device (), which maintains a person's wakefulness, wherein: a switching time control part () analyzes the characteristics of perceived sounds acquired by a microphone provided inside the vehicle, the perceived sounds comprising control sounds played back by the wakefulness-maintaining device () and environmental sounds around the person when no control sounds are being played back; an in-car sound-accumulating part () accumulates the perceived sounds; an acoustic pressure change-setting part () sets the control method to be used on the environmental sounds on the basis of the characteristics of the perceived sounds accumulated by the in-car sound-accumulating part (); and a control sound-generating part () applies the control method, set by the acoustic pressure change-setting part (), on the environmental sounds and generates control sounds.