Patent ID: 6028588
Filing Date: 2000-02-22
Classification: G09G

Abstract:
A dither circuit for reproducing a plurality of colors comprising:a latch having input terminals for receiving L input data bits and a clock signal, and having output terminals for outputting L output bits;a bit divider having input terminals for receiving the L output bits and a function selection signal, and having output terminals for outputting high M bits and low L-M bits;a function selector having an input terminal for receiving a low bit number signal and an output terminal for outputting a dither method signal;a frame rate and dither timing generator having a first input terminal for receiving the clock signal, a second input terminal for receiving a horizontal sync signal, a third input terminal for receiving a vertical sync signal and a fourth input terminal for receiving the dither method signal, and having output terminals for outputting dither timing bits;a frame rate dither controller having input terminals for receiving the low L-M bits and the dither timing bits, and an output terminal for outputting a dither data bit; andan adder having input terminals for receiving the dither data bit and the high M bits, and output terminals for outputting M output data bits.