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:
Sep. 05, 1995
Filed:
Apr. 04, 1994
Applicant:
Inventor:
Hitoshi Hirata, Saitama, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 43 ; 4552001 ; 455267 ; 455268 ; 455345 ; 381 14 ; 381 86 ; 381107 ;
Abstract
An FM audio system has an FM tuner, a CD player, a stereo modulator for modulating an audio signal from the CD player to produce a composite signal so as to be received by the FM tuner for reproducing the audio signal. A control circuit such as an automatic level controller is provided for controlling a level of the audio signal applied to the stereo modulator to such a level as to prevent tone quality of sound reproduced by the FM tuner from deteriorating.