| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a time correction system, and a time correction method preventing damage such as fraudulent access. <P>SOLUTION: A time managing device 2 is provided with a time information sending part 231 receiving a time signal including time information. A first time providing device 3 is provided with a clocking part 312, an extracting part 3151 extracting the time information from the time signal, a correcting part 3152 correcting time information of the clocking part 312 in response to the time information, and a network card 314 outputting the time signal including the time information. A second time providing device 4 is provided with a network card 411, an extracting part 4151 extracting the time information from the time signal, a correcting part 4152, and a wireless router 413 sending the time information. In information processors 5-1 to 5-n, the time information outputted from the second time information providing device 4 is received by the wireless router 413, and time information of a clocking part 501 is corrected on the basis of the time information. <P>COPYRIGHT: (C)2004,JPO</p> |
