| 摘要 |
<p>A display system (10) which includes a cathode ray tube (CRT) feedback current replacement circuit (20) to simulate the cathode feedback current directly from the from the red, green and blue output biases of the drive signals of the video processor (13). Furthermore, the display system (10) applies vertical blanking to the driving stage (16) when the biases are applied so that these biases will not be visible during a vertical underscanned condition. Shifting the generation of the cathode feedback current prior to the application of the blanking prevents any significant distortion, modification or skewing of the cathode feedback current sensed by the AKB sensing circuitry (19) of the video processor (13).</p> |
