Patent ID: 6847176
Filing Date: 2005-01-25
Classification: G09G,H04N

Abstract:
1. An apparatus for removing horizontal moire in a cathode-ray tube (CRT) monitor, the apparatus comprising: a moire correction data generation unit for generating moire correction data for each horizontal scan line of the ORT monitor, wherein the moire correction data generation unit comprises a waveform generator for generating a sawtooth waveform in synchronization with a vertical synchronous signal of the monitor, wherein the sawtooth waveform comprises the moire correction data, and a moire correction data adjustor for adjusting one of an alternating current (AC) component, a direct current (DC) component, and both the AC and DC comoonents, of the moire correction data; a data output unit for selectively outputting the moire correction data in synchronization with an odd-numbered or even-numbered horizontal synchronous signal; and a horizontal drive signal delay circuit for delaying a horizontal drive signal by a delay time corresponding to the moire correction data output from the data output unit.