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:
Apr. 21, 1992
Filed:
Mar. 12, 1990
Yoshio Minamide, Kawagoe, JP;
Akio Itoh, Kawagoe, JP;
Masashi Kawamoto, Kawagoe, JP;
Masaaki Watanabe, Kawagoe, JP;
Akira Nagashima, Kawagoe, JP;
Motonori Satoh, Kawagoe, JP;
Takashi Suzuki, Kawagoe, JP;
Yuichi Mineo, Kawagoe, JP;
Takafumi Yuki, Kawagoe, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
A burglarproof device includes an accessory switch detection circuit for detecting ON/OFF states of an accessory switch provided in a vehicle. An accessory switch detection signal is sent to an alarm generation circuit. The alarm generation circuit generates an alarm signal when the accessory switch is in an OFF state. This alarm signal alarms that a detachable electronic equipment adapted to be mounted in vehicles which has been mounted in a vehicle is actually attached to the vehicle. This alarm informs a driver that he forgets detachment of the electronic equipment adapted to be mounted in vehicles, thus preventing burglarly.