| 摘要 |
a CD-I main board(1) outputting a color signal and a composite synchronization signal; a VCO(2) generating the frequency for generating subcarrier frequency; an encoder(3) outputting a composite image signal; a first divider(11) dividing the horizontal synchronization signal of the CD-I main board(1); a second divider(12) dividing the frequency of the VCO(2); a pulse generating part(13) applying a dot kill signal to the second divider(12); a PLL(14) detecting the phase difference between the horizontal synchronization signal of the CD-I main board(1) and the output signal of the second divider(12); and a low pass filter(15) controlling the oscillating frequency of the VCO(2).
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