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. 10, 1976
Filed:
Jul. 16, 1975
Applicant:
Inventor:
Charles Cunningham, Jr, Indianapolis, IN (US);
Assignee:
Regency Electronics, Inc., Indianapolis, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
325344 ; 343206 ; 325437 ;
Abstract
A receiver is disclosed which will receive signals on either one of two closely spaced frequencies. The receiver is of the superheterodyne type and has a local oscillator frequency midway between the two frequencies which the receiver is tuned to. The receiver also includes a tone squelch circuit which mutes the audio unless a tone is received for a period of time.