Abstract: An auction information transmission processing system in an auction information transmission system which is constructed by connecting a single most significant front computer to a host computer, connecting a plurality of intermediate front computers and a plurality of least significant front computers to the most significant front computer in a tree-like configuration via communication lines, and connecting a plurality of dealer terminals to each of the least significant front computers via communication lines. The host computer connects to a satellite signal transmitter for transmitting auction data signals and other signals to a satellite through a satellite communication line, and each dealer terminal is provided with a satellite signal receiver for receiving the signals transmitted from the host computer through the satellite communication line.

Abstract: A televison signal transmission system comprising transmitting stations and receiving stations. Each transmitting station has a signal-transmitting circuit and a signal-superposing circuit. The signal-superposing circuit superposes a discriminant signal on a television signal during a vertical-blanking interval of the television signal. The discriminant signal is required for selecting the television signal. The signal-transmitting circuit inserts the television signals, containing the discriminant signal, into the communication channel assigned to the transmitting station, and then transmits the television signal to the receiving stations. Each receiving station has a signal-receiving circuit, a signal-detecting circuit, and a signal-selecting circuit. The signal-receiving circuit receives the television signals transmitted from the transmitting stations.