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:
Jan. 04, 1994
Filed:
Jul. 13, 1992
Applicant:
Inventors:
Robert R Asprey, Harvest, AL (US);
Thomas V Lusk, Scottsboro, AL (US);
Assignee:
Cybex Corporation, Huntsville, AL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H04N / ;
U.S. Cl.
CPC ...
330147 ; 330302 ; 330311 ; 358181 ; 358184 ;
Abstract
This invention is a constant current, noninverting, voltage amplifier powered by a single polarity of electrical power with respect to a ground potential. In a preferred embodiment, the amplifier consists essentially of a single transistor having a reference voltage applied to a base input thereof and an analog video signal coupled via a resistor to an emitter of the transistor. Also coupled to the emitter is a constant current source, with a collector of the transistor coupled to a monitor.