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:
Mar. 05, 2013
Filed:
Aug. 02, 2011
Hiroyuki Tsuchiya, Hamamatsu, JP;
Kazuyuki Ito, Hamamatsu, JP;
Masahiko Hasebe, Hamamatsu, JP;
Kouichi Kashiwazaki, Hamamatsu, JP;
Hiroyuki Iwase, Hamamatsu, JP;
Hiroyuki Tsuchiya, Hamamatsu, JP;
Kazuyuki Ito, Hamamatsu, JP;
Masahiko Hasebe, Hamamatsu, JP;
Kouichi Kashiwazaki, Hamamatsu, JP;
Hiroyuki Iwase, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-shi, JP;
Abstract
In response to detection of a note-on instruction, a CPU assigns a tone generating unit comprising two tone generating channels and sets tone color control data of the assigned tone generating unit into tone generator registers. The tone color control data includes a parameter common to the two channels. Once the CPU gives a tone generation start instruction to a tone generator, the tone generator accumulates a frequency number common to the two channels to thereby generate a progressive phase common to the two channels. Waveform readout section reads out left-channel and right-channel waveform data from a waveform memory on the basis of the phase and waveform selecting information of the left and right channels. Tone characteristics of the read-out left- and right-channel waveform data are controlled by a characteristic control section on the basis of a characteristic control parameter common to the two channels.