The authors discuss progress achieved in the development of dedicated programmable real-time video signal processors (VSPs) for video data coding/decoding and of new technologies to improve VSP performance. A number of VSP LSIs are introduced, including a 14.5 MHz 16 bit Programmable Video Signal Processor (P-VSP), a 200 MHz 16 bit 0.8 mu m BiCMOS Super-high Speed Signal Processor (SSSP), a 250 MHz 16 bit 0.8 mu m BiCMOS Super-high-speed Video Signal processor (S-VSP) and finally a 300 MHz 16 bit 0.5 mu m BiCMOS Video Signal Parallel-Pipeline Processor (VSP3) sufficient for encoding full-CIF data at 30 frames per second.<<ETX>>