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:
Jul. 14, 1992
Filed:
Oct. 23, 1989
Masashi Nishikawa, Hamamatsu, JP;
Minoru Fujisawa, Hamamatsu, JP;
Satoshi Otsuka, Hamamatsu, JP;
Mitsuhiro Umeta, Hamamatsu, JP;
Roland Corporation, Osaka, JP;
Abstract
An automatic musical playing system includes an automatic playing apparatus and a sound generating unit. The playing apparatus includes: a first memory for storing musical playing data arranged to be sequentially preread; a calculator for calculating an actual length of time required to play music based on the preread musical data and/or for calculating an actual quantity of playing information in such data; a comparator for deciding whether or not the acutal length of time is less than a predetermined length of time, and/or whether or not the actual quantity is less than a predetermined quantity; a first reading device for sequentially prereading from the first memory, the musical data prior to an actual time for playing when the comparator decision/decisions is/are affirmative; and an output for outputting the preread musical data. The sound generating unit includes: an input for receiving preread musical data; a second memory for temporarily storing data from the input; a second reading device for sequentially reading from the second memory, data according to a predetermined timing; and a musical tone-generator which generates and/or mutes musical tones for playing music according to the preread musical data.