E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
E05B 15/00 (2006.01) E05B 17/10 (2006.01)
Patent
CA 2183144
A door lock assembly comprising a lock plug having a key receiving opening, selectively operable light source for illuminating the key receiving opening, RF receiver for reproducing a received pulsed RF signal and means for determining whether the reproduced RF signal is within an acceptable range of asymmetric patterns of "on" pulse times followed by "off" times selected to include a plurality of different asymmetric patterns and means for operating the light source means for a selected period of time when the determining means determines that the reproduced RF signal is within acceptable range.
Maffey George E.
Saar David A.
Simpson Raymond W.
Emhart Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
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