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:
May. 05, 1992
Filed:
Apr. 09, 1990
Kiyomitsu Ishikawa, Tokyo, JP;
Toru Tanabe, Tokyo, JP;
Stanley Electric Co., Ltd., Tokyo, JP;
Abstract
A vehicle braking action alarming apparatus includes: a general stop-lamp or high-mount stop-lamp having a light emitting element which includes a light emitting diode; an oscillator for generating a signal at a predetermined frequency; a driver for driving and illuminating the stop-lamp; a controller for applying an output from the oscillator to the driver when a brake switch of the vehicle is turned on; a photosensor mounted at the front of the vehicle for receiving light from the stop-lamp of another preceding vehicle; and a processor/driver unit for processing a signal from the photosensor which received the light from the preceding vehicle, and for driving a sound source for generating an audible alarm sound warning of a braking action in the preceding vehicle. The oscillator is timed so as to operate only during a brief initial period following the actuation of the brake switch, which period can be moderately prolonged for the audible alarm in the receiving processor/driver.