| 摘要 |
PROBLEM TO BE SOLVED: To surely detect the end of reception and to smoothly perform a recovery process by detecting the reception intensity of data and finishing the data reception if the time when the detected reception intensity is less than a set value becomes longer than a prescribed time. SOLUTION: A control part 16 sets a set value of reception intensity for a reception intensity detecting means 21a and a reception end counter 24 counts the prescribed time when the reception intensity detected by the reception intensity detecting means 21a is less than the set value; when the reception intensity is larger than the set value, data are received and when the reception intensity is less than the set value, the reception end counter 24 is actuated. Consequently, the reception end counter 24 can accurately detect the end of reception even if length in the data is received incorrectly, and the error recovery process can surely be performed. |
