| 摘要 |
PURPOSE:To enhance efficiency of mutual communication by reserving plural opposite stations during a busy line in terms of plural television stations connected to a bus network, and selecting them so as to call back. CONSTITUTION:When a call demand signal transmitted on a coaxial calbe 1 operates a data receiving means 4 through a two-ways divider 2 and a data transmitting/receiving synthesizer 3, an identification number of an outgoing station is indicated on a display 6 by an operation condition control means 5. When reservation acceptance is possible, a registration storage means 9 is operated through an outgoing station identification number registration means 8, and the means 9 automatically stores the station. The station which has been registered and stored operates a retrieval button 12 so as to start a retrieval means 13, and identification numbers of the reserved television station are successively indicated on the display 6; therefore the television telephone station which is desired to call can be found. The incoming side selects the urgent and important television telephone station, inputs an opposite identification number manually through a ten-key 11, calls and telephones the station. |
