Authorization code lockout mechanism for preventing unauthorized reception of transmitted data

作者: Howard L. Myers , Lee R. Johnson

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摘要: A system and method for using two simple transactions to enable the disconnection of unauthorized receiver terminals (108). This is accomplished in accordance with invention by sending an addressed transaction every known valid terminal (108), giving each one current authorization code. After this command has been sent several times a global all containing previous codes. If any (108) receiving does not find match between its stored code it will deauthorize itself. Once into transmission cycle (306, 308), either transmitted codes, cycle, become new be generated. The periodically while are updated

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