| 摘要 |
This invention provides a network system and a information communicating device has a time correction ability, wherein a built-in clock of each of the plural devices connected with a communication network is capable of being corrected using a GPS time data without raising a processing load of a receiving device of the GPS data. In this system a car navigation device 12 receives a data from a GPS satellite, extracts a time data from the received data and transmits the time data attached with a time required within the device itself to a portable telephone in a form of an E-mail. The portable telephone that received the time data from the car navigation device corrects its own time generating means, and transmits the time data with attaching a required time for processing within the portable telephone. In this way, the time data attached with the required time for processing within each corresponding device is transmitted to a following device one by one.
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