| 摘要 |
<p>PURPOSE:To constantly and accurately set time by automatically performing time setting which corresponds to accurate present time information, using time information obtained through a telephone line. CONSTITUTION:A telephone device 6 receives a telephone-transmitted command signal 102, and receives sound data 104 which corresponds to time-signal information through a specific telephone line. The sound data 104 are inputted to a sound recognition circuit 5, and time information is recognized from time-signal information. The time information is sent through an encoder 8 to a time setting unit 1 as time data 105. A clock-work unit 2 inputs set-time data 107 from the time setting unit 1 to perform the time-count using the time set value as a starting point. Thus, present time data 109 are outputted from the clockwork unit 2 to be sent to a control unit 3 and a time display unit 4. The time display unit 4 receives the present time data 109 sent from the clockwork unit 2 to display present time.</p> |
