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:
May. 28, 1991
Filed:
Jun. 15, 1989
Applicant:
Inventors:
Tatsuya Iijima, Fussa, JP;
Hiroshi Morokuma, Akishima, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H / ; G10H / ; G10H / ; G10H / ;
U.S. Cl.
CPC ...
84625 ; 84627 ; 84633 ;
Abstract
Initial touch data or after touch data is obtained by operating a play input unit, such as keys or strings. A musical tone whose timbre or volume changes by the touch data is obtained. A tone generator has a plurality of sound source lines. Desired waveform data is selected by the touch data for each line. Only one type of the selected waveform data that is segmented at a touch split point is outputted for each line. The musical tone may be detuned by finely staggering the reference frequency, for each line. An envelope waveform may be applied to the musical tone for each line.