| 摘要 |
PURPOSE:To improve the operating characteristic of time setting by making the speed of time setting fast feed analogically changeably controllable. CONSTITUTION:A voltage control oscillator 7 is used as a fast feed clock oscillator and its oscillation frequency has been so that that it becomes high when the a point voltage lowers. Then, when a time setting button 1 is pushed after shifting a chargeover switch 9 at the time set side to apply H level to an AND gate 10, then base current flows in a switch-ON-detecting transistor 8 and the H level is applied to the AND gate 10. At the same time, the oscillation output of the voltage control oscillator 7 is applied to a watch counter 13 via AND gate 10 and OR gate 11, whereby the watch is fast fed. When the force pressing the button switch 1 is increased or decreased, the contact resistance between contact electrodes 5, 6 increases on decreases through conductive rubber 3, whereby the fast feed speed is regulated. Hence, the accurate time setting is made possible. |
