| 摘要 |
A program distribution system is disclosed for the simultaneous release of a program at a plurality of locations. The locations may include local broadcasters, or even individual devices. A program is modified so that it cannot be played without a release control command and is then copied and distributed either fixed in a media or electronically, (i.e., via private network, the Internet, etc.). At the receiver, the receiver first detects th e release control signal (step 114) and then replays the program at will. The program may include a time stamp in which case the receiver cannot replay th e program until a control indicative of a current time/date corresponding to t he date stamp. Alternatively, the program can be encrypted in which case the release control signal includes the decryption key (step 120). The release control can be broadcast over a TV channel, a radio channel and so on and is preferably imbedded into the signals of the standard TV or radio signals.</S DOAB>
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