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:
Aug. 01, 1989
Filed:
Feb. 29, 1988
Applicant:
Inventor:
Michael McGinn, Scottsdale, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
329 50 ; 329122 ; 329134 ; 329136 ; 3581951 ;
Abstract
In a stereo television video demodulating system comprising an IF filter coupled via a limiter stage to a phase detector of a phase locked loop and further coupled to a video demodulator, a phase reduction circuit for reducing differential phase effects in the television which includes a capacitive circuit coupled between an output of the video demodulator and the multiplier section of the phase detector and a resistive circuit coupled between an output of the video demodulator and the multiplier section.