Beam index system color image reproducing device
专利汇可以提供Beam index system color image reproducing device专利检索，专利查询，专利分析的服务。并且PURPOSE: To provide for optimum color shade compensation and to reproduce a correct color image free from color shade at all times by detecting changes in the magnetic field produced by the horizontal deflecting current and forming signals of horizontal deflection current distortion corresponding to color shade resulting from distortion of horizontal linearity.
CONSTITUTION: In an index tube drive signal forming circuit 10, a chrominance signal VCN formed by an index chrominance signal forming circuit 21 and a luminance signal EL formed by an addition circuit 24 of the prime color signals are added together and an index tube driving signal is formed by addition of the necessary vertical and horizontal blanking pulses and impressed to a grid 2 of an index tube 1. In such a manner, the color image is reproduced in the grid tube 1. In a phase control circuit 15, the sub-carrier phase is controlled in accordance with compensation signals from a color shade correction signal forming circuit 19 to control the phase of the demodulating axis in demodulating circuits 16∼18 of the rear stage. In the demodulating circuits 16∼18, the 120° chroma signal is demodulated using the phase controlled sub- carrier as the reference to form the prime colors.
COPYRIGHT: (C)1986,JPO&Japio，下面是Beam index system color image reproducing device专利的具体信息内容。
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