发明名称 |
ELECTRONIC BILATERAL COMMUNICATION SYSTEM FOR COMMERCIAL AND SUPPLEMENTARY VIDEO AND TAL SIGNALING |
摘要 |
A bilateral cable communications system - as for a lodging facility, distributes commercial and supplementary video programs from common equipment to spaced subscriber stations located, for example, in each hotel-motel room. Heterodyne converter apparatus is included at each station for viewing the supplementary programing on a standard television receiver. |
申请公布号 |
CA1017880(A) |
申请公布日期 |
1977.09.20 |
申请号 |
CA19730167474 |
申请日期 |
1973.03.29 |
申请人 |
COMPUTER TELEVISION INC. |
发明人 |
KIRK, DONALD (JR.);PAOLINI, MICHAEL J. |
分类号 |
H04H20/77;H04H20/63;H04H20/76;H04N7/16;H04N7/173 |
主分类号 |
H04H20/77 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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