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:
Jun. 24, 1997
Filed:
Jul. 05, 1994
Yutaka Tohgi, Hamamatsu, JP;
Yoshiko Fukushima, Hamamatsu, JP;
Yamaha Corporation, , JP;
Abstract
In accordance with one chord detecting approach, a peak value of the number of notes composing performance data is periodically detected for each predetermined time period and a combination of notes corresponding to the detected peak value is extracted as a representative note combination for the period, so that a chord is detected, for each of the predetermined time periods, on the basis of the extracted combination of notes. In accordance with another chord detecting approach, detection is made of a state of notes composing the performance data at each of three specific timings, i.e., predetermined beat timing, preceding timing slightly before the beat timing and succeeding timing slightly after the beat timing in an automatic accompaniment. A chord is detected on the basis of the thus-detected state of notes.