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:
Aug. 24, 1982
Filed:
Jun. 11, 1981
Nippon Gakki Seizo Kabushiki Kaisha, Hamamatsu, JP;
Abstract
A tempo control device for automatic performance according to this invention is of a type wherein a tempo of automatic performance is caused to automatically follow that of manual performance as the latter changes during performance. When difference in tempo between manual and automatic performance falls within a predetermined range, this automatic follow-up control is performed by measuring the manual performance tempo with accuracy and by controlling the frequency of tempo clock pulses in the automatic performance on the basis of the value thus measured. The predetermined range may be one fixed range for all notes of various note-lengths, or alternatively, different ranges may be employed in accordance with the length of notes.