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:
Mar. 16, 1993
Filed:
Apr. 30, 1991
Takahumi Shiba, Tokorozawa, JP;
Hirokazu Inotani, Tokorozawa, JP;
Fumihiro Nakajima, Tokorozawa, JP;
Seiichi Hasebe, Tokorozawa, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
An output level controlling apparatus comprises: a signal attenuating device for attenuating the reproduced output level of a reading/recording signal read from a record medium; a signal level deciding device for comparing the reproduced output level of the reading/recording signal to a reference signal level previously set; and an output level correcting device for sending a control signal to the signal attenuating device on the basis of the results of the comparison made by the signal level deciding device so as to attenuate the reproduced output level of the reading/recording signal when a reproduced output level is higher than the signal level of the reference signal and so as to decrease an attenuation amount of the reproduced output signal level of the reading/recording signal when the reproduced output signal level is lower than the signal level of the reference signal wherein the output level correcting device sends the control signal so as to rapidly attenuate the reproduced output level of the reading/recording signal and slowly increase the reproduced output level. It is therefore possible to momentarily attenuate a high input level for preventing the output in a high level and prevent the musical environment of BGM from being destroyed and aural sound vibrations from occurring during level adjustment.