| 摘要 |
PROBLEM TO BE SOLVED: To improve communication quality by executing transmission by means of a facsimile message with large error resistance in a first message converting device provided at a travelling object and the second message converting devices. SOLUTION: The travelling object message converting device 12 connected to a travelling object FAX equipment 13 executes code conversion and data compression, etc., as against a facsimile message from the FAX equipment 13 and converts it into the message with large error resistance (called error resistant message) even at the time of through radio wave transmission route. On the contrary, the converting device 12 executes data extension and code reverse conversion, etc., as against the error resistant message received with a card public telephone set 14 side, sets it back to be a facsimile signal following standard and gives the signal to the FAX equipment 13. Thus, the message transmitted through the radio wave transmission route is adopted as the error resistant message without directly connecting the message converting device 11 to the FAX equipment 19 so that communication quality is improved. |
