Invention Grant
- Patent Title: Automatic accompaniment apparatus for electronic keyboard musical instrument and fractional chord determination apparatus used in the same
- Patent Title (中): 用于电子键盘乐器的自动伴奏装置和使用的小数和弦确定装置
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Application No.: US13890526Application Date: 2013-05-09
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Publication No.: US08802956B2Publication Date: 2014-08-12
- Inventor: Yoshifumi Kira , Kiyomi Kurebayashi
- Applicant: Kabushiki Kaisha Kawai Gakki Seisakusho
- Applicant Address: JP Shizuoka
- Assignee: Kabushiki Kaisha Kawai Gakki Seisakusho
- Current Assignee: Kabushiki Kaisha Kawai Gakki Seisakusho
- Current Assignee Address: JP Shizuoka
- Agency: Sughrue Mion, PLLC
- Priority: JP2012-108818 20120510; JP2012-115924 20120521
- Main IPC: G10H1/38
- IPC: G10H1/38 ; G10H7/00
Abstract:
The number of chords belonging to a first chord group is decreased to less than the number of chords belonging to a second chord group. In a first detection mode, when a first determining unit determines that a state of key depressed does not correspond to any chord in a first chord group, a previously selected chord is continuously determined. Accordingly, even if a chord detection is performed on a change of melody point by point, the number of chords substantially detected is decreased. This decreases the number of changes in accompaniment, thus stabilizing a playback of the accompaniment.
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