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:
Oct. 07, 1980
Filed:
Oct. 30, 1978
Applicant:
Inventor:
John A Olmstead, Somerville, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123424 ; 123428 ;
Abstract
An electronic timing circuit for an internal combustion engine includes a Schmitt trigger operated by timing pulses from a magnetic pick-up mounted on the engine. The upper trip point is set high when the pulses have a high amplitude due to a high engine speed, so that false triggering of the circuit by noise of lower amplitude is avoided. A lower trip point is automatically set when the pulses have a low amplitude, such as when the engine is cranked to start it.