| 摘要 |
PURPOSE:To prevent receive contents from being exposed when an addresses is absent by allowing a transmitter to send an address code before picture signal transmission when detecting a secret processing signal and permitting a receiver to store a picture signal in a memory corresponding to the code. CONSTITUTION:When a circuit is connected, the receiver sends an answer signal CED and a function signal GI. For secret processing, the transmitter sends a signal for switching a recording device to a storage device in a mode selection processing signal GC. When the receiver sends a phase matching end signal CFR after phase matching, the transmitter sends a code signal. The receiver specifies the picture signal memory corresponding to the code and sends a signal CFR. Then, the picture signal sent from the transmitter is stored in the picture signal memory. Consequently, transmit contents are not recorded until the address code is inputted to the receiver, so even if the addressee is absent, receive contents are not known to other people. |
