| 摘要 |
PURPOSE:To avoid a time delay between a digital voice signal sent from a voice signal source and the regeneration of the voice signal by providing an analog waveform interpolation correction circuit correcting a transmission error. CONSTITUTION:When a digital voice signal sent from a CD, a DAT or a BS tuner, etc., being a voice signal source 32 is D/A-converted by a D/A converter 49, a transmission error is corrected without increasing the transmission speed by applying interpolation correction with an interpolation correction circuit 50. That is, the digital voice signal sent from a CD, a DAT or a BS tuner, etc., being the voice signal source 32 is subjected to digital voice modulation without error correction bits. Then the time delay is avoided, an optical element with a low frequency is employed and the optical space digital voice signal transmitter with a low low cost is realized. |
