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. 04, 1984
Filed:
Sep. 25, 1981
Applicant:
Inventor:
Shuichi Kosuge, Nagoya, JP;
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340 / ; 73114 ; 235 / ; 340679 ;
Abstract
A signal proportional to a vehicle speed is applied to one input terminal of a differential amplifier, and the output of the differential amplifier is fed back to the other input terminal of the differential amplifier via a switch the on-time of which is proportional to consumed fuel. Then, the output of the differential amplifier is taken out as a fuel consumption signal for informing a vehicle driver the momentary fuel consumption of the vehicle on a voltmeter or ammeter.