| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent a noise output by applying demodulation processing to voice data when a discrimination means discriminates a 1st state and interpolating data for a prescribed period with other voice data when the discrimination means discriminates a 2nd state. SOLUTION: After a de-interleave circuit 51 in a data processing section 5 conducts de-interleave processing to replace sequence of received data, the result is fed to a convolution decoding circuit 52, in which decoding processing is conducted. In this case, the circuit 52 discriminates a content of the decoded data depending on a state of specific bit data added to each slot. As the interpolation processing, the data for one slot period having an error or one preceding slot to a command of transmission of a high speed additional channel FACCH are to be interpolated. A voice data memory 62 storing voice data up to one preceding slot period is connected to a voice decoding circuit 61 and the interpolation processing is conducted by using the voice data of one preceding slot period stored in the memory 62. |
