Patent ID: 8378823
Filing Date: 2013-02-19
Classification: G08B

Abstract:
1. An antitheft security system, said system comprising: an electromagnetic (EM) field generator, said EM field generator comprising a housing to which at least one antenna is coupled thereto, said at least one antenna generating said EM field of a predetermined frequency, said housing being securable to a surface or surfaces in a plurality of orientations; and at least one security tag comprising a circuit tuned to said predetermined frequency, a detector and an alarm, said detector detecting said EM field received by said circuit and either activating said alarm or maintaining said alarm in a deactivated condition depending upon a security zone configuration of said antitheft security system; wherein said housing comprises an elongated housing having a longitudinal axis and first and second ends located at opposite ends of said longitudinal axis, wherein said first and/or second ends of said elongated housing comprise an electrical port for coupling to an external power source; wherein said EM field generator further comprises an internal power source, said EM field generator comprising means for automatically switching between power provided from said external power source and from said internal power source with no loss of operation of said EM field generator during switching; the antitheft security system further comprising a passive infrared sensor (PIR) for detecting motion around said EM field generator when said EM field generator is being powered from said internal power source, said PIR causing said field generator to switch to a low power “sleep state” when there is no motion being detected; and wherein said PIR is automatically deactivated when said EM field generator is being powered from said external power source.