| 摘要 |
<p>A method for modulation and demodulation of multiplexed color picture signal is disclosed to increase resolution in the vertical direction by means of 2-line array of CRT cathode which produce 2-line of electron beam. The horizontal resolution remains same as that of the NTSC system by multiplexing the Y signal of 0-7.2 MHz bandwidth from the Y/C signal to the 2-line of Y-signal, which is divided by the demodulation process into two Y signals Ya, Yb. Also, a display mean is provided, to generate the multiplexed 2-line electron beam, with two line array of six cathode or common R, G, B cathode array and two grid arrangement for Ya and Yb signals.</p> |
