| 摘要 |
<p>PURPOSE:To facilitate an easy color phase process at the reception side, by including a sample information signal showing a sample color phase signal into a transmission signal group and making clear a sample color phase of a video PCM signal. CONSTITUTION:The input video signal is supplied to the AD converter 2 via the low pass filter 1 and then converted into the PCM signal of parallel 8 bits to be turned into the input of the line driver 6. The synchronous signal in the input video signal is isolated; and the horizontal synchronous signal, vertical synchronous signal, field information signal and frame information signal are produced by the timing generator 4 to be turned into the input of the line driver 7. The color subcarrier signal is supplied to the sample clock oscillator 3, and the sample clock is supplied to the A/D converter 2 as well as to the input terminal of the counter 5 and the line driver 9. The color subcarrier signal is then applied to the counter 5, and this output is supplied to the line driver 8. The output signals of line drivers 6-9 are transmitted to the line receivers 10-13.</p> |
