Patent ID: 6404930
Filing Date: 2002-06-11
Classification: H04N

Abstract:
A signal processing equipment, comprising:compression means for converting an input signal into compressed data being compressed at a fixed compression rate, wherein said compression means comprises: means for dividing said input signal of a color image, where plural pixels are represented by plural color signals, into a plurality of blocks each being composed of a predetermined number of pixels, means for calculating approximated color signals based on said plural color signals in said block, and means for selecting an approximated color signal corresponding to a color signal of each pixel in said block and outputting selected approximated color signals for each block as said compressed data; a memory which stores said compressed data; a processor which reads stored compressed data from said memory; and decompression means for decompressing said compressed data from said processor, wherein said processor reads compressed data from said memory and causes said decompression means to decompress said compressed data from said processor in synchronism with a timing of outputting decompressed data from said decompression means to an output device, and wherein said processor reads said compressed data from said memory, rewrites a part of said compressed data, and stores the rewritten compressed data to said memory.