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:
Feb. 12, 1991
Filed:
Jan. 03, 1989
Susumu Kawashima, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
There are provided a device for sampling a tone signal applied from outside, a built-in tone source, responsive to tone pitch information, a tone signal having tone pitch corresponding to the tone pitch of the tone pitch information, a memory capable of both writing and reading for storing waveform sampled data and a control circuit for selectively writing a tone signal sampled or a tone signal generated from the built-in tone source. The waveform sampled data in the memory is read out in accordance with designated tone pitch. A circuit is provided which, when input of a tone signal sampled has not been detected for a predetermined period, causes a tone signal generated from the built-in tone source and written in the memory. There is also provided a circuit which generates a tone of a reference pitch when a predetermined switch operation has been made with the tuning operation. There is also provided a circuit for selecting whether pitch adjustment should be made in both a sample tone source having a memory storing a tone signal sampled and the built-in tone source or the pitch adjustment should be made only in the sampled tone source. There are provided a circuit for generating pattern data designating tone sounding timing and tone pitch in accordance with a rhythm pattern and a circuit for performing selection as is whether the sampled tone source be driven in accordance with this pattern data or in accordance with a key depression.