Progressive image coding

Pyramidal encoder for encoding error images

Quantization adaptive to the human visual system

Quantization circuitry as for video signal compression systems

Quantization control circuit

Quantization method and circuit therefor

Quantization step size control apparatus using neural networks

Quantizer control method and apparatus

Quantizer having a low probability of saturation

Quantizer with automatic pre-threshold

Rate adaptive huffman coding

Rate control for a video encoder

Rate control with panic mode

Real time motion vector processing of image data

Real-time encoding of video sequence employing two encoders and

Real-time encoding signal extraction and display apparatus

Recording data production apparatus and method, recording medium

Recording data production apparatus and method, recording medium

Reduced bit number motion vector detection

Reduced memory size set top box which stores frames and associat