A SLOW (HORIZONTAL) SCAN METHOD AND APPARATUS FOR TRANSPOSED SCAN DISPLAY SYSTEMS

摘要

The slow scan (horizontal) scan apparatus and method for a transposed scan display (CRT) utilizes an audio amplifier and corresponding flyback voltage circuitry to achieve increased yoke current and voltage, especially during retrace intervals of the horizontal scan. Through the transportation of the scan (i. e., a vertical scan CRT), additional considerations and corrections are required for preventing linearity distortions in the current signals driving the yoke. An "S" correction waveform is generated to achieve the required linearity for the horizontal scan.