H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/22 (2006.01) G06F 12/14 (2006.01) G06F 21/00 (2006.01) H04B 7/185 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04N 7/16 (2006.01) G06F 1/00 (2006.01) H04H 1/00 (2006.01)
Patent
CA 2218039
A method and apparatus for an adaptor card (40), for use in a computer (50), to provide conditional access by the computer (50) to incoming data streams while maintaining the security of information by maintaining a listing of addresses corresponding to data streams which the computer (50) is authorized to receive, receiving and determining the address of a frame, determining whether the frame address matches an address maintained in an Access Table, and processing and transmitting only those frames of data streams with the computer (50) is authorized to receive.
L'invention concerne un adaptateur sous forme de carte destiné à un ordinateur, pour permettre un accès conditionnel par l'ordinateur à un flux de données entrantes, tout en assurant la sécurité de l'information. Ceci est réalisé en conservant une liste d'adresses correspondant aux flux de données que l'ordinateur est autorisé à recevoir, en recevant et en déterminant l'adresse des trames, en déterminant si l'adresse des trames correspond à une adresses conservée dans un tableau d'accès et en traitant et transmettant uniquement les trames de flux de données que l'ordinateur est autorisé à recevoir.
Cassagnol Robert D.
Dillon Douglas M.
He Holdings Inc.
Hughes Electronics Corporation
Sim & Mcburney
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