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. 20, 2012
Filed:
Apr. 07, 2004
Kuniyo Ieda, Tokyo, JP;
Tatsuya Mitsugi, Tokyo, JP;
Yoshihiko Utsui, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An audio system includes a key input section and a microcomputer, and enables playback volume level control that will meet the demand of a user. The key input section inputs a selection instruction for selecting one of a plurality of sound sources in response to a manipulation. The microcomputer, in cooperation with a level adjusting ratio setting library, a level adjusting pattern generator and a volume adjuster, selects the sound source designated by the selection instruction, calculates the level difference ΔP between the playback volume level of the sound data of the current piece of music and that of the next piece of music of the selected sound source, and adjusts the playback volume level of the next sound data in accordance with an adjusting ratio corresponding to the level difference.