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:
Nov. 17, 1992
Filed:
Jun. 20, 1989
Tsutomu Saito, Sizuoka, JP;
Kawai Musical Instrument Mfg. Co., Ltd., Sizuoka, JP;
Abstract
An interruption control apparatus for controlling interruptions of a performance information processor for processing performance information of a piece of music. The interruption control apparatus includes a first time control unit for regulating the length of a time interval between successive interruptions of the performance information processor according to a pre-set tempo in such a manner that the regulated time interval is limited within a predetermined constant range, and for outputting an interruption signal at the regulated time interval; a second time control unit for receiving the interruption signal and increasing a parameter of a register by an increment, of which the value varies inversely as the pre-set tempo, every reception of the interruption signal and further transferring performance information to the performance information processor each time the parameter reaches a predetermined value and then resetting the parameter to become zero; and an interruption processing unit for receiving the interruption signal and interrupting the performance information processor in response to the received interruption signal.