发明名称 EDUCATION UTILITY
摘要 <p>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 receiver 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.</p>
申请公布号 CA1262262(A) 申请公布日期 1989.10.10
申请号 CA19860501814 申请日期 1986.02.13
申请人 NATIONAL INFORMATION UTILITIES CORPORATION 发明人 TAUB, JACK R.;HILLS, MICHAEL T.
分类号 H04B7/185;(IPC1-7):H04B7/185 主分类号 H04B7/185
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