METHOD FOR THE DETECTION OF MODIFIED INFORMATION PATTERNS OF A CAPACITIVE INFORMATION CARRIER BY THE USE OF CAPACITIVE DETECTION MEANS
First Claim
1. A capacitive information carrier for transmitting information to a capacitive surface sensor wherein the capacitive information carrier is a single-portion pack for a beverage or food preparation machine comprising a conductive lid and/or top cover, wherein a pattern of a dielectric layer is applied on said lid and/or top cover to form an information pattern detectable by the capacitive surface sensor.
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Abstract
The invention relates to a method for the detection of modified information patterns of a capacitive information carrier comprising at least one electrically conductive material forming at least one modifiable electrically conductive pattern, wherein information is encoded within the characteristics of the electrically conductive pattern. The method comprises at least the steps of modifying the characteristics of the electrically conductive pattern and capacitively detecting a second information pattern encoded within the characteristics of the modified electrically conductive pattern. In a further aspect, the invention relates to a capacitive information carrier for use in the method according to the invention and a method for manufacturing a capacitive information carrier for use in the method according to the invention.
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Citations
26 Claims
- 1. A capacitive information carrier for transmitting information to a capacitive surface sensor wherein the capacitive information carrier is a single-portion pack for a beverage or food preparation machine comprising a conductive lid and/or top cover, wherein a pattern of a dielectric layer is applied on said lid and/or top cover to form an information pattern detectable by the capacitive surface sensor.
- 9. A capacitive information carrier for transmitting information to a capacitive surface sensor comprising an electrically conductive pattern wherein the electrically conductive pattern comprises a predetermined breaking point.
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11. A method for transmitting information from a capacitive information carrier to a capacitive surface sensor comprising:
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a) providing a capacitive surface sensor, b) providing a capacitive information carrier wherein a first information pattern is encoded within the characteristics of an electrically conductive pattern, c) modifying the characteristics of the electrically conductive pattern due to external conditions to encode a second information pattern, and d) bringing the capacitive information carrier into contact with a capacitive surface sensor wherein the second information pattern is capacitively detected by the capacitive surface sensor. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26-27. -27. (canceled)
Specification