Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1979-03-30
1980-06-03
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
307 10AT, E05B 4900
Patent
active
042064910
ABSTRACT:
A keyless system especially useful in controlling the doors and trunk of an automobile is disclosed. The overall system usually comprises an input station containing a keyboard, a signal processor, signal amplification means and an electromechanical grouping which converts the electrical output from the amplifier to mechanical movement in control of a lock. The system is activated by a touch control at the input keyboard and with the power section of the system energized, the lock is controlled in response to a proper sequence of digital input signals created by the operator. The input at the control station is described in terms of a keyboard having five selectors and resulting in approximately three thousand possible combinations for the base code. The signal processor responds to correct combinations of digital inputs with a drive signal. The signal processor is also programmable with temporary convenience codes which are loaded into the logic portion of the system with access preconditioned on entry of the base code.
REFERENCES:
patent: 3691396 (1972-09-01), Hinrichs
patent: 3710316 (1973-01-01), Kromer
patent: 3766522 (1973-10-01), Marsh
patent: 3784839 (1974-01-01), Weber
patent: 3796889 (1974-03-01), Fradkin et al.
patent: 3831065 (1974-08-01), Mastin et al.
patent: 3845361 (1974-10-01), Watase et al.
patent: 4062056 (1977-12-01), Goodrich
Carlson David K.
Kaufman Peter
Kompanek Harry W.
Ligman James R.
Criso Anthony J.
KKF Corporation
Moose Jr. Harry E.
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