| 摘要 |
<p>PURPOSE:To improve the accuracy for timing recovery and to facilitate large scale circuit integration by using a transversal filter for a timing reproducing system of a modulator-demodulator. CONSTITUTION:An input reception waveform is subject to A/D conversion by an A/D converter 1, the converted digital signal is demodulated by a demodulator 4 and the result is inputted to the transversal filter 5. On the other hand, a tap factor of a filter corrected is multiplied with an output of the filter 5 by a tap factor correcting circuit 6, the products are added by an adder 7 and the result is converted into a reception timing signal. Then the said correction circuit 9 connected to an output of the filter 5.</p> |
