Boots – shoes – and leggings
Patent
1981-12-29
1984-02-07
Chan, Eddie P.
Boots, shoes, and leggings
178 2208, 178 2209, 34082531, 34082534, 179 15R, 179 2DP, G06F 1516, G06F 304, H04L 900, H04M 1100
Patent
active
044307284
ABSTRACT:
The invention provides a system for securing the access of a remote computer terminal (130) to a centrally located host computer (300). The system includes a first security circuit (200) interconnected with a calling telephone (100), a calling modem (110), and the remote computer terminal (130) at the remote location for automatically dialing the number of the called telephone (310) at the location of the central host computer (300). A second security circuit (350) is located at the central host computer (300) and is interconnected with the called telephone (130), the called modem (330), and the central host computer (300). Upon receipt of the user identification code, the second security circuit (350) compares the user identification code with a stored code and, if verified, sends an acknowledgment signal back to the first security circuit (200). At this time, the two security circuits (200 and 350) activate respective solid state switches (260 and 370) to interconnect the host computer (300) with the remote computer terminal (130). A portable memory module (240) is selectively insertable in the first security circuit (200) to selectively activate and deactivate the first security circuit and which contains the secret phone number of the called telephone (310) at the host computer (300) as well as the secret user identification code.
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"Automatic Telephone Dialers", Nov. 1979, Issue of Radio Electronics, pp. 48-51.
Beitel James E.
Bruce Charles R.
Cook Gary R.
Mosier, Jr. Charles F.
Sartore Edward L.
Chan Eddie P.
Hummel Jack L.
Marathon Oil Company
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