| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem, wherein time synchronization cannot be performed by a general-purpose wave clock dependently on the reception environment of standard radio waves. <P>SOLUTION: Time information showing the present time is acquired, a time transmission signal for transmitting the time information by the same communication method as the standard radio waves for transmitting the standard time is generated, and the time transmission signal is output to a power supply line by the communication method. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
