| 摘要 |
PROBLEM TO BE SOLVED: To cancel an echo without attenuating a volume of a communication voice. SOLUTION: In a communication terminal device 100 at a sender's side after a voice input from a microphone 15 is transmitted to a communication terminal device 200 at a receiver's side, inhibition of data transfer from a wireless communication control unit 11 to a data storage memory 13 is set, and time counting for a predetermined time (approx. several ms) is started in a timer 17. During this predetermined time, voice data (echo data) received from the terminal device 200 is read and abandoned. When the time counted by the timer 17 elapses, the inhibition of the data transfer from the wireless communication control unit 11 to the data storage memory 13 is canceled. COPYRIGHT: (C)2005,JPO&NCIPI
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