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:
Jul. 17, 1979
Filed:
Mar. 09, 1977
Applicant:
Inventor:
Peter J Carlson, Fort Lauderdale, FL (US);
Assignee:
Airpax Electronics, Inc., Fort Lauderdale, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; G01P / ;
U.S. Cl.
CPC ...
324173 ; 330 69 ; 330258 ;
Abstract
Disclosed in a differential operational amplifier for use with a proximity type pick up. It has a common mode rejection input circuit comprising a diode and transistor connected to each input as well as diodes connected across the amplifier differential inputs. Common mode signals are clamped at the input to both protect the amplifier and prevent false transitions at the output.