Communications: electrical – Continuously variable indicating – With meter reading
Patent
1983-11-01
1986-02-25
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
70277, 70DIG51, 361172, 340696, 34082531, E05B 4700, G08B 1308, H04Q 900
Patent
active
045730466
ABSTRACT:
An apparatus and method for providing a universal electronic locking system (UELS) which controls an actuating device for a lock is disclosed. The system is composed of two elements, a signal-transmitting unit and a signal-receiving unit. The signal-transmitting unit is envisioned, in one embodiment, as contained within a watch and powered by the power source of the watch so as to transmit an optical signal to the signal-receiving unit. The integrated circuit chip of the watch is expanded to include a programmable memory unit such that various codes may be entered in the watch and the codes may be changed at any interval desired by the operator. The digital display of the watch serves a dual purpose for displaying time and for entering key codes. The signal-receiving unit comprises a photodetector for receiving an optical signal from the signal-transmitting unit and contains a programmable memory unit which is responsive to each and all codes contained in the signal-transmitting unit. Upon changing the code signal in the signal-transmitting unit, the memory unit of the signal-receiving unit may be reprogrammed so as to be responsive to the newly encoded signal and allow the latching mechanism of the lock system to be operated. The UELS is contemplated for applications in the home, business, industry, recreation, defense and wherever locks and codes are used.
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Universal Photonics Inc.
Yusko Donald J.
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