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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.:

US 5359661 B1

PDFFull Text
Date of Patent:
Oct. 25, 1994

Filed:

Oct. 01, 1992

Out-of-lock detector for synchronous am detection

Applicant:
Inventors:

Gregory J Manlove, Kokomo, IN (US);

Detlef Griessman, Kokomo, IN (US);

Richard A Kennedy, Kokomo, IN (US);

Thomas G Block, Carmel, IN (US);

Assignee:

Delco Electronics Corporation, Kokomo, IN (US);

Attorneys:

Simon; Anthony Luke

Funke; Jimmy L.

Primary Examiner:

Curtis Kuntz

Assistant Examiner:

Mark D Kelly

Int. Cl.
CPC ...
H04H / ;
U.S. Cl.
CPC ...
381 15 ; 381 13 ; 331D / ;
Abstract

An AM stereo receiver in which a synchronous in-phase signal is determined comprises a low pass filter circuit for determining an average DC value of the synchronous in-phase signal, a reference voltage supply for providing a reference voltage indicative of a predetermined portion of the DC value of the synchronous in-phase signal occurring during a 100% IF signal level condition, a comparison circuit for comparing the average DC value of the synchronous in-phase signal to the predetermined reference, and an output circuit outputting a signal indicative of an out-of-lock condition when the average DC value of the synchronous in-phase signal falls below the predetermined reference.

Find Patent Forward Citations

Manlove, Gregory. (1994). Out-of-lock detector for synchronous am detection (U.S. Patent No. 5359661). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5359661

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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