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. 14, 1987
Filed:
Jan. 06, 1986
Ralph Deutsch, Sherman Oaks, CA (US);
Kawai Musical Instrument Mfg. Co., Ltd., Hamamatsu, JP;
Abstract
A keyboard operated musical instrument is disclosed in which the musical tones are generated by reading out a sequence of data values stored in memories. A first memory stores the musical waveshape for the attack and decay phases of the musical tone. One of a plurality of memories, each storing a period of a different waveshape, are selected by means of a touch response signal generated by the manner with which a keyswitch is actuated. At the end of the decay phase the waveshape selected by the touch response signal is read out sequentially and repetitively and is substituted for the data stored in the first memory. A means is provided to minimize the transient created in the transition between data read out of the first memory and the selected second memory. Provision is also made for a touch response loudness effect.