| 摘要 |
<p>PURPOSE:To improve the reliability of operation changeover by executing the changeover of a 1st operating mode and a 2nd operating mode with two ways of strong and light touch pressing. CONSTITUTION:Two ways of light, strong touch pressures are applied to a single operating button 1, and when the touch pressure is light, the changeover in the forward reproduction mode and the reverse reproduction mode of a tape is implemented, and when the touch pressure is strong, the changeover from the reproduction to the fast feed mode or vice versa is implemented and the circuit configuration is adopted, in which control is applied by a 2-bit control signal finally. A touch pressure strong and light discrimination circuit 5 consists of an exclusive OR gate, a multivibrator and an AND gate and a motor 7 is controlled by inputting a light control signal or a strong control signal to a motor control circuit 6 to select 4 operating modes.</p> |
