| 摘要 |
PURPOSE:To improrve the visual recognizability of a tempo, and to decrease the number of contacts of a tempo selection switch by successively switching and displaying previously stored tempo numerals on an optical display element by the operation of the tempo selection switch. CONSTITUTION:Prescribed tempos, etc. meeting the JIS (Japanese Industrial Standard) are stored in a storage circuit ROM, and desired tempos among the stored tempos are selected, step by step, by the operation of the switch 7. The selected tempo is converted by a decoder circuit DEC into numerical data, which is displayed on a display element DSP. Further, when the switch 7 is turned on for a certain time or longer by a timer circuit TIM, the tempos are transferred rapidlly automatically at a constant speed. |
