Patent ID: 6340871
Filing Date: 2002-01-22
Classification: H04N

Abstract:
A horizontal-deflection correction circuit, comprising:a horizontal deflection stage for deflecting a scan electronic beam in a horizontal direction by a sawtooth current flowing in horizontal deflection coil; a control stage for outputting first and second control voltages having equal values when performing a linear correction and for outputting the first and second control voltages having different values when performing a S-shaped correction; a first correction stage responsive to the first control voltage for varying an inductance of a first variable inductor connected in series to the horizontal deflection coil to correct a magnitude and a direction of the sawtooth current; and a second correction stage responsive to the second control voltage for varying an inductance of a second variable inductor connected in series to the first variable inductor in an opposite polarity to correct the magnitude and the direction of the sawtooth current.