| 摘要 |
PURPOSE:To achieve the synchronization of a stop watch with a pace maker by starting the counting of a pace counter circuit block adapted to emit a tick sound at set time intervals syncrhonizing with a start signal of the stop watch. CONSTITUTION:A display switching circuit 5 selects display information D10 from a stop watch circuit 3 and display information D2 from a pace timer circuit 4 based on a select signal K from a switching circuit 2 and outputs them on a display unit 6. The start signal of the switch circuit 2 to the stop watch circuit 3 is inputted to the pace timer circuit 4. Synchronizing the start signal, the pace timer circuit 4 is set at the set value starting the downcounting, emits a forecasting tone from a buzzer 8 approaching the set time and an alarm tone at the set time. When a lap time signal is generated, the pace timer circuit 4 is reset forcibly. |
