System for detecting optically invisible objects provided with encoding
First Claim
1. A system for detecting and identifying optically invisible objects which are provided with a coding, in which each object (2) is provided with coding elements exhibiting the form of a succession of electrically conducting elements (3, 4, 5) of small thickness, which are electromagnetically detectable, each forming a surface of predetermined dimensions and arranged in or on an electrically insulating protective support, these elements being separated from one another by intervals likewise of predetermined value, characterized in that it comprises an electromagnetic detector (8) including at least one transmission coil (10) and at least one reception coil (13), which are devised so as to provide the detector with at least two signals representative of the code carried by an object and of its environment, means being envisaged for processing these signals so as to reconstruct the signature of the single code and thus to locate and identify the coded object.
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Accused Products
Abstract
The invention concerns a system for detecting and identifying optically invisible objects, provided with encoding, wherein each object (2) is provided with encoding elements in the form of a series of thin electrically conductive elements (3, 4, 5), capable of being detected by electromagnetic process, forming each a surface of predetermined dimensions and arranged in or on an electrically insulating protective support, said elements being spaced apart from one another by intervals likewise of predetermined value. It comprises an electromagnetic detector (8) including at least an emitting coil and a reception coil, designed to deliver to the detector at least two signals of the code borne by an object and its surroundings, means being provided for processing said signals so as to reproduce the signature of the single code and thereby locate and identify the encoded object.
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Citations
10 Claims
- 1. A system for detecting and identifying optically invisible objects which are provided with a coding, in which each object (2) is provided with coding elements exhibiting the form of a succession of electrically conducting elements (3, 4, 5) of small thickness, which are electromagnetically detectable, each forming a surface of predetermined dimensions and arranged in or on an electrically insulating protective support, these elements being separated from one another by intervals likewise of predetermined value, characterized in that it comprises an electromagnetic detector (8) including at least one transmission coil (10) and at least one reception coil (13), which are devised so as to provide the detector with at least two signals representative of the code carried by an object and of its environment, means being envisaged for processing these signals so as to reconstruct the signature of the single code and thus to locate and identify the coded object.
Specification