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:
Oct. 30, 2007
Filed:
Dec. 02, 2003
Shinichi Gayama, Tsurugashima, JP;
Shinichi Gayama, Tsurugashima, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An apparatus and a method for searching for a music piece which includes a storing device for storing first chord progression music data for a plurality of music pieces representing chronological changes in chords in the music pieces. Second chord progression music data representing chronological changes in at least a part of chords in a music piece is produced, the first chord progression music data for the plurality of music pieces stored and the second chord progression music data are compared on the basis of the amount of change in the root of a chord in a chord transition and the attribute of the chord after the transition in order to calculate a similarity for each of the plurality of music pieces, and a search output corresponding to a result of the calculation for each of the plurality of music pieces is produced.