METHOD AND APPARATUS FOR TRANSFERRING COMMANDS FROM THE CONTROL SITE TO THE RECORDING SITE IN CLOSED LOOP TELEVISION INSTALLATIONS

摘要

Procedure for transmitting orders from the control station to the outlet in closed-circuit television installations, characterized in that it comprises, for each order communicated in correspondence with the control station, the selection in a predetermined number of impulses of line synchronization of the video signal transmitted from the shooting station to the control station, the communication of the selected pulses to the shooting station and, in correspondence with the shooting station, the computation of said selected pulses and the conversion of the counted number into one value and destination signal depending on this counted number. (Machine-translation by Google Translate, not legally binding)