DEVICE FOR DISCRIMINATING MOVING AND FIXED IMAGE BLOCKS AND THEIR CODING (DECODING) DURING IMAGE RECORDING- TRANSFER (REPRODUCTION) Russian patent published in 2003 - IPC

FIELD: television engineering; discriminating moving and fixed image blocks between adjacent image frames. SUBSTANCE: device has current image block shaper for current frame; preceding-frame macroblock shaper incorporating standard reference image block and plurality of reference image blocks surrounding standard block; reference image block search unit; newly introduced are signal spectrum compressor; reference image block address register corresponding to error in comparison of current-frame current pixel block with reference-block pixel signals of preceding frame that does not exceed desired value calculated in comparison error shaping unit for pixel signals of current-frame current block and those of preceding-frame reference image block; flag register; first and second data sample address generators for current-frame current image block and preceding-frame macroblock, respectively; control device; output bus of device with control bus. EFFECT: enhanced efficiency of data compression during image transfer or recording. 1 cl, 4 dwg