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:
May. 26, 2009
Filed:
Jun. 26, 2003
Masaru Aiso, Hamamatsu, JP;
Akio Suyama, Hamamatsu, JP;
Masaru Aiso, Hamamatsu, JP;
Akio Suyama, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-Shi, JP;
Abstract
A drive apparatus for volume control devices is provided for setting, promptly and exactly, the position of a control device such as a fader to its standard position. A first volume control device (-), an operation position thereof is operative automatically, is provided for controlling a first gain of an audio signal. A position control device (-) is provided correspondingly to the first volume control device. A second volume control device (-), an operation position thereof is operative automatically, is provided for controlling a second gain of the audio signal, so that a total gain applicable to the audio signal is determined by the operation positions of the first and second volume control devices. A controller is provided for setting, when the position control device is operated, the operation position of the first volume control device to a pre-specified standard position (0 dB), and for setting the operation position of the second volume control device to a position where a previous total gain before the position control device is operated is maintained.