Patent ID: 8253863
Filing Date: 2012-08-28
Classification: H04N

Abstract:
1. A display unit used for a display system transmitting differential analog video signals sent from predetermined video sending sources via a first long distance transmission line, comprising: a receiver for converting said differential analog video signals along said first long distance transmission line into unbalanced analog video signals, said receiver including a frequency response characteristics corrector for correcting frequency gain characteristics attenuated in said first long distance transmission line on the basis of a first correction parameter, and a delay corrector for correcting propagation delay on said first long distance transmission line on the basis of a second parameter; a video display processing circuit for displaying an image on a predetermined display device on the basis of said unbalanced analog video signals; a controller for providing said frequency response characteristics corrector and said delay corrector inside said receiver with said first and second parameters; and a transmitter for converting said unbalanced analog video signals into a differential form and transmitting output differential analog video signals to a second long distance transmission line to which external devices are connectable.