Electric lock system

Details Electric lock system Electric lock system

1983-03-14

1989-05-16

Yosko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

340542, G08B 2600, E05B 4506, H04M 1104

Patent

active

048313742

ABSTRACT:
An electronic lock system includes a lock which is selectively lockable and unlockable in response to an input signal; and buffer means for (1) receiving user commands and generating the input signal only in response to one or more preselected user commands, (2) identifying certain parameters incident to the locking or unlocking of said lock and (3) transmitting said parameters. A microprocessor includes a memory coupled to the buffer means for recording the parameters, and a central processor selectively interrogates the microprocessor and records the parameters. An interface is coupled between the microprocessor and the central processor and transmits the parameters from the microprocessor memory to the central processor in response to the interrogation.

REFERENCES:
patent: 3969584 (1976-07-01), Miller et al.
patent: 4148012 (1979-04-01), Baump et al.
patent: 4275385 (1981-06-01), White
patent: 4283710 (1981-08-01), Genest et al.
patent: 4415893 (1983-11-01), Roland
patent: 4427974 (1984-01-01), Sheahan
patent: 4445214 (1984-04-01), Reynolds et al.
patent: 4468655 (1984-08-01), Iwata
Intel 8048/8035L/8748-6/8035 Single Componen 8-bit Microcomputer Specification Sheets 6-9, 6-10, 6-11, 1976.

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