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:
Feb. 23, 1988
Filed:
May. 08, 1986
Applicant:
Inventor:
Paul E Payne, Ft. Lauderdale, FL (US);
Assignee:
North American Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B / ; H03K / ;
U.S. Cl.
CPC ...
307540 ; 307542 ; 307546 ; 307520 ; 328165 ;
Abstract
A noise immune circuit for use with pulse type sensors whereby a noise modulated signal is clipped and shaped in a hard limiter to a square wave signal before being filtered by a low pass filter. A Schmitt trigger with substantial feedback then biases the threshold of said hard limiter for discrimination of noise from signal.