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:
Aug. 03, 1993
Filed:
Aug. 27, 1991
Raymond Lippmann, Ann Arbor, MI (US);
James E Nelson, Union Lake, MI (US);
Michael J Schnars, Clarkston, MI (US);
James R Chintyan, Davison, MI (US);
James M Aralis, Mission Viejo, CA (US);
Frank J Bohac, Jr, Laguna Hills, CA (US);
Anthony L Simon, Southfield, MI (US);
Delco Electronics Corporation, Kokomo, IN (US);
Hughes Aircraft Company, Los Angeles, CA (US);
General Motors Corp., Detroit, MI (US);
Abstract
A circuit including a sender providing a sender output signal responsive to a vehicle parameter, circuitry for providing an adjustable reference, circuitry for comparing the output signal to the adjustable reference and providing a comparison output signal therefrom, an up/down counter for filtering the comparison output signal, and circuitry for providing an indicator control signal in response to the filtered output signal and for controlling the adjustment of the adjustable reference, provides a signal to a vehicle operator that is both filtered and has hysteresis to minimize repeated switching of the signal between two states.