MPEG2-based transmission systems transmit a large number of digital television programs in a single physical channel. Disclosed herein is a "Channel Navigation System" which allows a user to get an overview of the digital programs provided, and to easily select a desired program. The method of the invention...http://www.google.fr/patents/US5633683?utm_source=gb-gplus-shareBrevet US5633683 - Arrangement and method for transmitting and receiving mosaic video signals including sub-pictures for easy selection of a program to be viewed
Arrangement and method for transmitting and receiving mosaic video signals ...