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. 11, 1976
Filed:
Jun. 10, 1974
Abstract
An automatic performance system in an electronic musical instrument comprises circuits for forming digital performance information signals by converting the displacement of movable members operated according to the contents of a performance into digital signals, and circuits for forming musical tone information signals corresponding to the contents of the performance from harmonic rich tone signals by controlling predetermined signal paths with electronic switches operated in response to the performance information signals, the digital performance information signals being detected and stored, and read out into the electronic switches at proper time instants, whereby all of the performance information signals are automatically reproduced as musical tone information signals with fidelity. The digital performance information can be automatically modified as desired in the process of storage and reproduction thereof to obtain modified musical tone information, and can furthermore be stored as information in a compressed state which contains digital signals indicating the occurrence of events in the performance and relative time information between the events.