Patent ID: 6805423
Filing Date: 2004-10-19
Classification: B41J,H04N

Abstract:
A gradation control system comprising:means for decoding lower n bits (n is an integer equal to 1 or greater than 1) of a binary number expressing a gradation per dot, to derive 2n decoded data; means for grouping said 2n decoded data with respect to a plurality of dots, to produce 2n first bit planes; means for giving to an element a signal of pattern corresponding to each of said first bit planes for a time obtained by adding a time that depends on a decoded value of each of said first bit planes, to an initializing time common to all of said first bit planes; means for grouping, per bit weight, respective bits of said binary number excluding said lower n bits, that expresses the gradation per dot, to produce at least one second bit plane; and means for giving to said element a signal of pattern corresponding to each second bit plane for a time that depends on a weight of said second bit plane.