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. 12, 2011
Filed:
Jul. 24, 2009
Souichi Takigawa, Hamamatsu, JP;
Souichi Takigawa, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-shi, JP;
Abstract
In normal mode or expansion mode, a normal load tableor an expansion load tableis selected, respectively, to store half area start position HS and half area end position HE as effect-switchable positions. The selected load table is referenced to generate and output drive signals so as to obtain depression reaction force F according to position ST. In accordance with player's depression/release of keys, musical tone signals are generated on the basis of waveform dataand envelope datacorresponding to the manipulated keys, designated basic tone color and depression area to carry out tone emission/tone-vanishing processes. Both the characteristics of musical tones and the rate of change in the reaction force switch at the effect-switchable positions.