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:
Jul. 20, 1993
Filed:
Feb. 26, 1992
Applicant:
Inventors:
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H / ; G10H / ;
U.S. Cl.
CPC ...
84661 ; 84663 ; 84DI / ;
Abstract
A musical tone generating apparatus generates musical tones based on a signal outputted from a sound source and an envelope generator. The signal outputted from the sound source is processed by a digital filter in accordance with filter information responsive to a key-on signal. Filter information generating circuit generates delay time information corresponding to the time period which the digital filter needs to process and output an inputted data. The envelope is imparted to the signal outputted from the sound source with a delay from a key-on timing which corresponds to the delay time information to realize precise envelope rise portions.