| 摘要 |
<p>An apparatus and method for providing a universal electronic locking system (UELS) which controls an actuating device for a lock (86). The system is composed of two elements, a signal-transmitting unit (10) and a signal-receiving unit (40). The integrated circuit chip of the watch (12) 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 signal-receiving unit comprises a photodetector (48) for receiving an optical signal (34) from the signal-transmitting unit (10) and contains a programmable memory unit (54) which is responsive to each and all codes contained in the signal-transmitting unit. Upon changing the code signal in the signal-transmitting unit (10), the memory unit (54) of the signal-receiving unit (40) may be reprogrammed so as to be responsive to the newly encoded signal and allow the latching mechanism (60) of the lock system to be operated. The system may be used alone or in combination with conventional key (122) operated locking mechanisms. The UELS is contemplated for applications in the home, business, industry, recreation, defense and wherever locks and codes are used.</p> |
