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. 08, 1986
Filed:
Feb. 17, 1984
Applicant:
Inventor:
David J Carlson, Indianapolis, IN (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04B / ;
U.S. Cl.
CPC ...
3581951 ; 455182 ;
Abstract
A quasi-parallel IF television receiver derives the AFT voltage from a video carrier in the sound IF channel. Since the signals in the sound IF channel do not pass through the VSB filter, asymmetries in the AFT loop response are avoided. This results in better operation of the AFT control loop.