Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent
1997-06-04
1999-08-17
Butler, Dennis M.
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
713201, 713202, 710101, 710108, G06F 1214
Patent
active
059387670
ABSTRACT:
A lockout system for preventing children from accessing parentally-restricted and undesirable material with a computer comprises a controller unit for receiving commands from a computer and generating control codes to a data device to transmit electronic information over a phone line. A locking device is operably coupled to the controller unit and has a LOCKED state and an UNLOCKED state. The controller unit is further operable for determining the state of said locking device and preventing the transmission of electronic information from said data device when the locking device is in a LOCKED state. Other embodiments utilize a locking device to disable a relay in-line with the telephone line of a modem or to interrupt the phone line directly.
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Butler Dennis M.
Mai Rijue
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