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. 23, 1999
Filed:
May. 16, 1997
Applicant:
Inventor:
Kazuo Haruyama, Hamamatsu, JP;
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09B / ;
U.S. Cl.
CPC ...
84478 ;
Abstract
A performance instructing apparatus is provided which reproduces a music piece according to automatic performance data, and displays a drawing of a display keyboard that is oriented in the same direction as a keyboard through which a player enters pitch information, and a key operation region corresponding to each key of the display keyboard. The key operation region represents a period from a point of time when the key is to be depressed by the player to a point of time when the key is to be released. The key operation region is scrolled such that the region approaches the display keyboard as the music piece is reproduced.