Patent ID: 6097447
Filing Date: 2000-08-01
Classification: H04N

Abstract:
A digital deflection control system in a projection TV, the system comprising:an EEPROM for storing vertical and horizontal deflection seed data for R, G, B color signals;a CPU for loading each seed data from the EEPROM and performing the first interpolation for the horizontal deflection data;a digital conversion circuit for performing the second interpolation for the vertical deflection data among the data first-interpolated by the CPU;a digital deflection control for performing the third interpolation for the horizontal deflection data among the data second-interpolated by the digital conversion circuit;a D/A converter for outputting the data third-interpolated by the digital deflection control as an analog signal in the form of step wave; anda filter for removing high frequency component from the signal in step waveform outputted from the D/A converter.