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:
Nov. 01, 1988
Filed:
Sep. 08, 1986
Applicant:
Inventors:
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H / ; G10H / ; G10H / ;
U.S. Cl.
CPC ...
84-113 ; 84-126 ; 84-127 ; 84DI / ;
Abstract
A plurality of drum pads are each provided with a respective piezoelectric pick-up. The output of each piezoelectric pick-up is fed to a corresponding envelope-extracting circuit. The envelope signal extracted by the envelope-extracting circuit is converted by an A/D converter into a digital signal which is fed to a CPU. The CPU feeds a tone designation signal to a tone generator unit according to parameter data from a parameter data setter and the digital signals noted above, thereby causing generation of a corresponding drum sound.