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:
Feb. 15, 1994
Filed:
Mar. 27, 1991
Hitoshi Hirata, Saitama, JP;
Pioneer Electronic Corporation, Tokyo, JP;
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 notification system has a controller and a muting circuit. The controller produces a control signal in response to the changing of function of the CD player. The muting circuit attenuates the audio signal from CD player in accordance with the control signal. Speech information is generated in response to the changing of the function of the CD player. The speech information is added to an attenuated audio signal and applied to the stereo modulator so as to reproduce the audio signal together with the speech information.