Individual reception mode null of the masumedeia information due to

摘要

PURPOSE:To distribute information to lots of subscribers simultaneously with low cost by comparing a decoder output with a coincident pattern read from a memory circuit and decoding an information signal received based on a decoded code read from the memory circuit. CONSTITUTION:In the case of a TV signal able to be received by a subscriber only individually, the signal is indexed by a detected identification code and a decoded code on a memory circuit 6 is read. An identification code is decoded by a decoder 7 according the decoded code and a decoded signal and a coincidence signal read from the memory circuit 6 are compared with a comparator 8 and when coincident, an AND gate 10 passes the video signal decoded by a decoder 9. Then the video signal passes on OR gate 12 and is inputted to a receiver circuit 13, and displayed on a CRT 14. Thus, even when the number of the subscribers is increased, the distribution cost is not increased and the information is distributed simultaneously to lots of the subscribers.