Patent ID: 8358212
Filing Date: 2013-01-22
Classification: A61B,G06K

Abstract:
1. A system for detecting and identifying an object, the system comprising: an identification transponder including at least a first inductive winding and an integrated circuit that stores an identifier, the first inductive winding electrically coupled to the integrated circuit and operable to transmit an identification signal from the identification transponder in response to receipt of an interrogation signal in a first frequency range, the identification signal encoding an identifier stored by the integrated circuit; a presence/absence transponder including a resonant inductive/capacitive tank circuit having at least a second inductive winding and a capacitor, the second inductive winding electrically coupled to the capacitor and operable to transmit a presence/absence signal from the presence/absence transponder in response to an interrogation signal in a second frequency range, the presence/absence response signal omitting any unique identifying information, the presence/absence transponder physically coupled to the identification transponder to form an integral detection and identification transponder that can selectively be attached to the object; a coupling member configured to attach the integral detection and identification transponder to the object without impeding performance of the object wherein at least one of the first core portion or the second core portion includes a hollow space, the coupling member extending from the hollow space.