Patent ID: 7161627
Filing Date: 2007-01-09
Classification: H04N

Abstract:
1. A registration correction apparatus in a video signal processor, to which color signals having registration discrepancy are supplied, comprising: input terminals for supplying said color signals; a registration correction unit coupled with said input terminals, for correcting said color signals having registration discrepancy, wherein said registration correction unit includes a plurality of variable delay units for delaying said color signals as an interval between adjacent pixels or integer multiple of said interval, a plurality of interpolation processing units for generating interpolated signals based on said color signals from said adjacent pixels in response to delay times of said color signals if said times of said color signals shorter than said interval and a plurality of switch units for changing connections of said input terminals or said interpolation processing units with said variable delay units; and a control unit, coupled with said switch units, said variable delay units and said interpolation processing units, for controlling said switch units, said variable delay units and said interpolation processing units so as to correct said registration discrepancy.