Information transmission system

Claim 1

A TELEVISION TRANSMISSION SYSTEM COMPRISING A TRANSMITTER, A CONVENTIONAL BROADCAST TELEVISION RECEIVER, AND A SECOND TELEVISION RECEIVER, SAID TRANSMITTER COMPRISING A SOURCE OF FIRST VIDEO SIGNALS CORRESPONDING TO A CONTINUOUS BROADCAST TELEVISION PROGRAM, A SOURCE OF SECOND VIDEO SIGNALS CORRESPONDING TO A DISCONTINUOUS TELEVISION PROGRAM COMPOSED OF A SERIES OF STILL IMAGES, A SOURCE OF IDENTIFICATION SIGNALS, AND MEANS FOR TRANSMITTING SAID FIRST AND SECOND VIDEO SIGNALS AND IDENTIFICATION SIGNALS IN CYCLES WHEREBY EACH CYCLE IS COMPRISED OF A PLURALITY OF FIRST FIELDS THAT ARE RELATED SOLELY TO SAID BROADCAST PROGRAM AND A SUBSTANTIALLY LOWER NUMBER OF FIELDS RELATED TO SAID DISCONTINUOUS PROGRAM, PART OF THE SIGNALS OF SAID SECOND FIELDS BEING VIDEO MODULATED IN INVERTED FORM WHEREBY THE VISUAL EFFECT OF SAID DISCONTINUOUS PROGRAM IS MINIMIZED IN SAID CONVENTIONAL BROADCAST RECEIVING SAID SECOND RECEIVER COMPRISING MEANS FOR RECEIVING SAID TRANSMITTER SIGNALS, STORAGE AND DISPLAY MEANS, AND MEANS RESPONSIVE TO THE RECEPTION OF SAID IDENTIFICATION SIGNALS FOR APPLYING ONLY VIDEO SIGNALS CORRESPONDING TO SAID LOWER NUMBER OF FIELDS TO SAID STORAGE AND DELAY MEANS.