Coded tags encoded using different magnetic materials and methods of detecting coded tags
First Claim
1. A method comprising:
- transmitting a first magnetic detection signal at a first magnetic frequency;
transmitting a second magnetic detection signal at a second magnetic frequency;
detecting a first response from a first magnetic material to the first magnetic detection signal, the first magnetic material associated with a substrate of a coded tag;
detecting a second response from a second magnetic material to the second magnetic detection signal, the second magnetic material associated with the substrate;
determining that the coded tag encodes first information based on detecting the first response; and
determining that the coded tag encodes second information based on detecting the second response.
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Accused Products
Abstract
A method includes transmitting a first magnetic detection signal at a first magnetic frequency and transmitting a second magnetic detection signal at a second magnetic frequency. The method also includes detecting a first response from a first magnetic material to the first magnetic detection signal and detecting a second response from the second magnetic material to the second magnetic detection signal. Each of the first magnetic material and the second magnetic material is associated with a substrate of the coded tag. The method further includes determining that the coded tag encodes first information based on detecting the first response and determining that the coded tag encodes second information based on detecting the second response.
13 Citations
20 Claims
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1. A method comprising:
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transmitting a first magnetic detection signal at a first magnetic frequency; transmitting a second magnetic detection signal at a second magnetic frequency; detecting a first response from a first magnetic material to the first magnetic detection signal, the first magnetic material associated with a substrate of a coded tag; detecting a second response from a second magnetic material to the second magnetic detection signal, the second magnetic material associated with the substrate; determining that the coded tag encodes first information based on detecting the first response; and determining that the coded tag encodes second information based on detecting the second response. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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transmitting a first magnetic detection signal at a first magnetic frequency; transmitting a second magnetic detection signal at a second magnetic frequency; and detecting a presence of a first magnetic material and a second magnetic material associated with a substrate of a coded tag based on a first response from the first magnetic material to the first magnetic detection signal and based on a second response from the second magnetic material to the second magnetic detection signal, the first magnetic material corresponding to a first magnetic ink associated with a first area of the substrate, and the second magnetic material corresponding to a second magnetic ink associated with a second area of the substrate. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method comprising:
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transmitting a first magnetic detection signal at a first magnetic frequency; transmitting a second magnetic detection signal at a second magnetic frequency; detecting a presence of a first magnetic material based on a first response from the first magnetic material to the first magnetic detection signal, the first magnetic material included in a first layer of a substrate of a coded tag; and detecting a presence of a second magnetic material based on a second response from the second magnetic material to the second magnetic detection signal, the second magnetic material included in a second layer of the substrate that is different from the first layer.
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Specification