| 摘要 |
In a color television receiver including a color image reproducing kinescope with plural cathode electrodes and a common grid electrode, a kinescope driver amplifier arrangement is disclosed for supplying frequency selective video signal drive to the kinescope. The receiver also includes networks for providing wide bandwidth luminance (Y) and plural color (r, g, b) image representative signals containing low and high frequency components, as derived from a composite color television signal. High frequency components (e.g., derived from the luminance signal) above a prescribed frequency are selectively processed in a grid signal path and supplied to the kinescope grid via a grid driver amplifier stage. A high frequency compensation signal derived from the grid signal is combined with each of the plural color signals with a sense to cancel with the high frequency components of the color signals. The plural color signals with remaining low frequency components below the prescribed frequency are respectively supplied to the plural kinescope cathodes via plural cathode driver amplifier stages. With this arrangement, full wide bandwidth signal drive is supplied to the kinescope, while the cathode driver stages employ an economical number of inexpensive, low power consumption active devices. |
