SYSTEMS AND METHODS FOR CAPACITIVE IDENTIFICATION
First Claim
1. An apparatus, comprising:
- a capacitive sensing array; and
processing circuitry coupled to the capacitive sensing array and configured to;
operate the capacitive sensing array to generate an electromagnetic field; and
determine an identity of an object based on capacitance values generated by the capacitive sensing array when a capacitive identifier of the object is placed within the electromagnetic field generated by the array.
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Accused Products
Abstract
Capacitive identification systems and methods are described. The system may include a capacitive detector configured to identify objects having capacitive identifiers. A capacitive identifier may be a patterned dielectric ink that, when placed in an electromagnetic field generated by the capacitive detector, detectably alters the capacitance of neighboring sensors in the detector. The capacitive detector may be disposed within an opaque housing structure of a device and configured to detect the capacitive identifier through the opaque housing structure. The capacitive detector may include a capacitive sensing array and processing circuitry formed on a common printed circuit. The capacitive detector may be formed in an infusion pump system. The capacitive identifier may be disposed on a pump cassette for the infusion pump system.
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Citations
20 Claims
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1. An apparatus, comprising:
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a capacitive sensing array; and processing circuitry coupled to the capacitive sensing array and configured to; operate the capacitive sensing array to generate an electromagnetic field; and determine an identity of an object based on capacitance values generated by the capacitive sensing array when a capacitive identifier of the object is placed within the electromagnetic field generated by the array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A pump cassette, comprising:
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a rigid body comprising a compliant membrane that defines a controllable fluid pathway that extends from an inlet port to an outlet port; and a capacitive identifier comprising a coded pattern that identifies the pump cassette. - View Dependent Claims (12, 13, 14, 15)
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16. An infusion pump system, comprising:
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a processing unit; and a cassette recess adapted to receive a pump cassette, the cassette recess comprising; a plurality of mechanisms operably coupled to the processing unit and configured to control fluid flow in the pump cassette; and a capacitive detector configured to capacitively detect and identify the pump cassette. - View Dependent Claims (17, 18, 19, 20)
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Specification