发明名称 EDUCATION UTILITY
摘要 A system for distributing educational information in digital form to a plurality of schools simultaneously transmits the information via a satellite (15) to FM stations (18) which retransmit to schools having receivers for receiving the information and a main computer (101) for storing the information. Access to the information is subsequently provided to a plurality of students via classroom computers (111) and individual terminals (121). Usage and performance data is automatically stored in the main computer (101) and sent to the sender by dial-up modem (105) to keep track of usage and to permit billing usage and royalty charges.
申请公布号 WO8501854(A1) 申请公布日期 1985.04.25
申请号 WO1983US01579 申请日期 1983.10.07
申请人 NATIONAL INFORMATION UTILITIES CORPORATION 发明人 TAUB, JACK, RONALD;HILLS, MICHAEL, T.
分类号 G09B5/12;H04H20/28;H04N7/00;(IPC1-7):H04N7/16;G09B3/00;G09B13/00 主分类号 G09B5/12
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