| 摘要 |
PROBLEM TO BE SOLVED: To actualize a tempo display device of simple constitution which gives notice of a tempo by controlling the illumination of an illumination part without giving any feeling of physical disorder. SOLUTION: A CPU 10 controls the illumination of LED's 1 to 6 which are circularly arranged and makes corresponding LED's as many as indicated and operated beats illuminate clockwise or counterclockwise even when the number of the beats is large to give tempo notice without giving any feeling of physical disorder. |
