Detectable components and detection apparatus for detecting such components
First Claim
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1. A detectable component, comprising;
- a first inductive component adapted to couple inductively to a second inductive component of a detection apparatus when the detectable component is in range of or coupled to the detection apparatus; and
a resistive component comprising a closed loop inductively coupled to the first inductive component, wherein the resistive component has a resistance that varies with magnetic field to cause modulation of a carrier signal supplied to the second inductive component of the detection apparatus,wherein the detectable component has a characteristic signature that enables the detectable component to be distinguished by the detection apparatus from other detectable components having different characteristic signatures.
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Abstract
A detectable component has a first inductive coupler (L;M) adapted to couple inductively to a second inductive coupler (L1) of a detection apparatus when the detectable component is in range of or coupled to the detection apparatus. The first inductive coupler has a resistive component (M) with a resistance that varies with magnetic field to cause modulation of a carrier signal supplied to the second inductive coupler of the detection apparatus, the detectable component having a characteristic signature that enables the detectable component to be distinguished by the detection apparatus from other such detectable components having different characteristic signatures.
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Citations
59 Claims
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1. A detectable component, comprising;
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a first inductive component adapted to couple inductively to a second inductive component of a detection apparatus when the detectable component is in range of or coupled to the detection apparatus; and a resistive component comprising a closed loop inductively coupled to the first inductive component, wherein the resistive component has a resistance that varies with magnetic field to cause modulation of a carrier signal supplied to the second inductive component of the detection apparatus, wherein the detectable component has a characteristic signature that enables the detectable component to be distinguished by the detection apparatus from other detectable components having different characteristic signatures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A detectable component, comprising:
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a first inductive component adapted to couple inductively to a second inductive component of a detection apparatus when the detectable component is in range of or coupled to the detection apparatus, wherein the first inductive component comprises a plurality of electrically conductive paths coupled in parallel; and a resistive component with a resistance that varies with magnetic field to cause modulation of a carrier signal supplied to the second inductive component of the detection apparatus, wherein the resistive component comprises a closed loop inductively coupled to the inductive component. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A detectable component, comprising:
a first inductive component adapted to couple inductively to a second inductive component of a detection apparatus when the detectable component is mechanically coupled to the detection apparatus, wherein the first inductive component consists solely of a coil formed of a material having a resistance that varies with magnetic field to cause modulation of a carrier signal supplied to the second inductive component component of the detection apparatus. - View Dependent Claims (44, 45, 46)
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47. A detectable component, comprising:
first inductive coupling means adapted to couple inductively to second inductive coupling means of a detection apparatus when the detectable component is mechanically coupled to the detection apparatus, the mechanical coupling causing the first inductive coupling means and the second inductive coupling means to effectively form a primary and secondary of a transformer, the first inductive coupling means comprising a resistive component with a resistance that varies with magnetic field to cause modulation of a carrier signal supplied to the second inductive coupling means of the detection apparatus, the detectable component having a characteristic signature that enables the detectable component to be distinguished by the detection apparatus from other detectable components having different characteristic signatures. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
Specification