Communications: electrical – Continuously variable indicating – With meter reading
Patent
1995-02-24
1997-11-25
Holloway, III, Edwin C.
Communications: electrical
Continuously variable indicating
With meter reading
70278, H04Q 100
Patent
active
056917112
ABSTRACT:
A key and lock system for enabling access to at least one protected domain in response to an enabling signal. The system includes a key arrangement capable of generating a digital key code composed of least one and zero bits; an electronic device arranged for receiving the digital key code, a code-containing device for containing at least one further digital code, and a code-comparing arrangement connected to the electronic device and the code-containing device for generating the enabling signal when the digital key code is equal to the further digital code. The system further includes at least one keylock having a keyslot arranged to receive the key, and a digital code reader connected to the keylock for reading the digital key code, and an electronic gating arrangement for deriving from the key code a steering signal for steering the key code into the electronic device. The electronic device may be a digital computer which can have outputs for controlling an engine.
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Greenberg Laurence A.
Holloway III Edwin C.
Lerner Herbert L.
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