CLOSED HEADING SYSTEM FOR USE IN COMPRESSED DIGITAL IMAGE TRANSMISSION

摘要

Apparatus for compressing video information including digital data in horizontal or vertical blanking intervals of analog video signals includes circuitry (210) for retrieving such digital data. The retrieved digital data is formatted into auxiliary digital data packets. The analog video signal is compressed (214) according to, for example, the MPEG compression protocol and the auxiliary digital data packets are included (212) in the compressed video signals.