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:
May. 17, 1994
Filed:
Jul. 30, 1991
Norio Suzuki, Hamamatsu, JP;
Takaaki Muto, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
A loop circuit including a delay element and an all-pass filter circulates a tone signal. A driving waveform is applied to the loop circuit. The delay element provides a delay time corresponding to the pitch of the circulating tone signal and the all-pass filter is capable of changing the phase of the tone signal corresponding to its frequency. Thus, the resulting musical tone can be controlled in accordance with touch, thereby enabling the simulation of vibration of pitch and the generation of non-harmonic components caused by touch in a natural musical instrument.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile