The ban by the content of a television program display

摘要

(57) how to control by its contents viewing of [summary] television program, including the transmission of codes using the auxiliary data channel that indicates the level of sexual, a violence, of the contents of the miserable, etc. there. The collected teletext signal, such code is detected at the receiver. The receiver is programmed by indicates whether the contents in response to the transmitted signal to blank the display, to incorporate code mutes. Is inserted additionally printable form on the page of teletext, without using the means for automatically controlling the display of the program, such codes, as can surveillance the classification of the program the viewer is viewing during to. I have been described control system, program source and also receiver.