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US 5,675,647 AGranted
Cable TV system using passwords
AssigneeLe Groupe Videotron LTEE
InventorsPierre Garneau, Josee Corriveau, Michel Dufresne
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AssigneeLe Groupe Videotron LTEE
InventorsPierre Garneau, Josee Corriveau, Michel Dufresne
Estimating the term…
This invention relates to a method of distributing signals to valid subscribers comprised of storing subscriber terminal valid identification codes at a central station, broadcasting promotions of services available to subscribers, each associated with a specific promotion code, selecting one of the services and entering a selected service promotion code into a terminal at a subscriber location, automatically reading an identification number associated with the terminal in response to the entering of a selected promotion code, processing the identification number and the selected promotion code in accordance with an encryption algorithm, and generating an encrypted event request code therefrom, providing the event request code to a verification center, at the verification center, decrypting the event request code, verifying the number against the valid identification codes, and providing a password unique to the terminal and the selected promotion code, entering the password into the terminal at the subscriber location, and providing access to a service utilizing one of the distributed signals corresponding to the selected promotion code to the subscriber in response to the entering of the password.
A cable TV system comprising:
A cable TV system comprising a network, subscriber terminals connected to the network authorized to receive signals offered by specific ones of different operators, and means for restricting receipt by said subscribers of said signals to those offered by said specific ones of said operators for which said subscriber terminals have been authorized, said means for restricting being derived as a result of a determination of a subscriber terminal identity and a code unique to an operator.
A method of distributing signals to various subscribers comprising:
A method of distributing signals to valid subscribers connected to a network to which a plurality of servers, each having a unique server code, are connected comprising requesting a program from a program supplies, providing said program on a pay-per-view server based on a program promotion code, supplying a password unique to a single terminal connected to the network and to said pay-per-view server, and applying the password to said terminal for enabling the selected program to operate, where by the password is derived as a result of a determination of said single terminal identity and of said server code.
A cable TV system comprising:
Dependencies are inferred from the claim text.