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. 30, 1993
Filed:
Oct. 11, 1991
Applicant:
Inventor:
Shinya Konishi, Hamamatsu, JP;
Assignee:
Kabushiki Kaisha Kawa Gakki Seisakusho, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H / ; G10H / ;
U.S. Cl.
CPC ...
84658 ; 84687 ;
Abstract
A key depression speed is measured in units of keys of a keyboard of an electronic musical instrument by a counter for counting clock pulses, and the measured value is converted into key touch data. Counters, the number of which is smaller than the total number of keys of the keyboard are used, and one count channel is assigned to two or more keys. When two keys assigned to the same count channel are successively depressed, the initial value of the corresponding count channel is set, so that an error of the measurement values sequentially obtained in correspondence with the key depression speeds of the keys is minimized.