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. 15, 1978
Filed:
Mar. 15, 1977
Applicant:
Inventor:
Yoshiro Sugai, Kawagoe, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
325348 ; 325402 ; 325410 ; 325456 ; 325478 ; 358165 ;
Abstract
A muting control circuit for an FM receiver provides rapid on-off response during channel selection or tuning, and rapid on but delayed off response during listening, whereby annoying muting circuit switching is reduced. The delay is implemented by rapidly charging a capacitor when the muting is switched on, and then allowing the relatively slower discharge of the capacitor to prolong the muting operation after the control signal therefore is terminated.