| 摘要 |
<p>A DBS satellite reception system reduces installation costs and discourages theft of service. A plurality of receiver modules (16) containing all necessary signal demodulating, decoding, decrypting, and formatting circuits are colocated in a multi-receiver device (14), with the satellite antenna (12) connected to the input of each receiver. An access control module (40) containing an access card (42) and a modem (44) connected to a telephone line (48) performs programming authorization and communication with the service provider for all receiver modules. The multi-receiver device contains an antenna for reception of remote control commands and distributes them to all receiver modules through selectors (32). The receiver modules generate television signals for distribution to televisions (56) through pre-existing cable networks (RG-59), obviating the need to install RG-6 cable from the satellite antenna to every television. Since one access card controls programming authorization for all receiver modules the call-back requirement of secondary DBS receivers is obviated.</p> |
