| 摘要 |
<p>PURPOSE: To obtain a carrier generator capable of generating a carrier for the digital processing of a chrominance signal by simple constitution excluding a multiplier and a band pass filter. CONSTITUTION: A 1st adder 42 adds a 1st phase variation signalΔθ1 . obtained by the change of a horizontal synchronizing signal to a 2nd phase variation signalΔθ2 obtained by the change of a color burst signal and outputs the added value. An integrator 44, 46 receives the supply of the added phase variation signal, integrates the supplied signal and generates a phase value signal. A ROM (sin value table 48) outputs a carrier signal corresponding to the phase value signal outputted from the integrator.</p> |
