发明名称 |
PROGRAM BLOCKING METHOD FOR USE IN DIRECT BROADCAST SATELLITE SYSTEM |
摘要 |
713-373 Programming tiers are authorized for viewing on an impulse pay-per-view basis. The system operator controls individual receiver units to block the display of programming on selected tiers because the subscriber finds the content of same objectionable or to prevent members of the household from incurring charges without the subscriber's consent. The broadcast signal includes portions addressable to particular receiver units. These portions include a designation of tiers to be blocked and a command to store same in the unit memory. Upon command to display a program on a selected tier, the memory is accessed and the stored designation compared with the selected tier. Receivers having stored designations corresponding to the selected tier are unable to display the program. GI-CAN-193-CANADA |
申请公布号 |
CA1312943(C) |
申请公布日期 |
1993.01.19 |
申请号 |
CA19860499211 |
申请日期 |
1986.01.08 |
申请人 |
GENERAL INSTRUMENT CORPORATION |
发明人 |
HORNE, DONALD R. |
分类号 |
H04B7/185;H04N7/167;H04N7/20 |
主分类号 |
H04B7/185 |
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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