Piezoresistive sensors and applications
First Claim
Patent Images
1. A sensor system, comprising:
- piezoresistive fabric;
a plurality of sensor traces printed, screened, or deposited directly on one or more surfaces of the piezoresistive fabric, the plurality of sensor traces and the piezoresistive fabric forming a plurality of sensors, each of the sensors including two or more of the sensor traces, the sensor traces of each sensor being on a same surface of the piezoresistive fabric;
first insulating material printed, screened, or deposited directly on one or more of the surfaces of the piezoresistive fabric; and
a plurality of routing traces printed, screened, or deposited on the first insulating material and connected to corresponding ones of the sensor traces;
wherein resistance between the sensor traces varies with force applied to the piezoresistive fabric.
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Accused Products
Abstract
Sensors incorporating piezoresistive materials are described. One class of sensors includes piezoresistive material that is held or otherwise supported adjacent conductive traces on a substrate. Another class of sensors includes conductive traces formed directly on the piezoresistive material.
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Citations
35 Claims
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1. A sensor system, comprising:
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piezoresistive fabric; a plurality of sensor traces printed, screened, or deposited directly on one or more surfaces of the piezoresistive fabric, the plurality of sensor traces and the piezoresistive fabric forming a plurality of sensors, each of the sensors including two or more of the sensor traces, the sensor traces of each sensor being on a same surface of the piezoresistive fabric; first insulating material printed, screened, or deposited directly on one or more of the surfaces of the piezoresistive fabric; and a plurality of routing traces printed, screened, or deposited on the first insulating material and connected to corresponding ones of the sensor traces; wherein resistance between the sensor traces varies with force applied to the piezoresistive fabric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A sensor system, comprising:
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piezoresistive fabric; a plurality of sensor traces printed, screened, or deposited directly on one or more surfaces of the piezoresistive fabric, the plurality of sensor traces and the piezoresistive fabric forming a plurality of sensors, the sensor traces comprising silicone ink having conductive particles suspended therein, each of the sensors including two or more of the sensor traces, the sensor traces of each sensor being on the same side of the piezoresistive fabric; first insulating material printed, screened, or deposited directly on one or more of the surfaces of the piezoresistive fabric; and a plurality of routing traces printed, screened, or deposited on the first insulating material and connected to corresponding ones of the sensor traces; and circuitry configured to receive one or more signals from the sensor traces via the routing traces, to detect a touch event with reference to the one or more signals, and to determine either or both of a location of the touch event, and a magnitude of force of the touch event. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. A controller, comprising:
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piezoresistive fabric; a plurality of sensor trace groups printed, screened, or deposited directly on one or more surfaces of the piezoresistive fabric, the plurality of sensor trace groups and the piezoresistive fabric forming a plurality of sensors, each of the sensor trace groups corresponding to a sensor of the plurality of sensors and including two or more sensor traces on a same side of the piezoresistive fabric, wherein resistance between the sensor traces in each of the sensor trace groups varies with force applied to the piezoresistive fabric in a vicinity of the sensor trace group; first insulating material printed, screened, or deposited directly on one or more of the surfaces of the piezoresistive fabric; and a plurality of routing traces printed, screened, or deposited on the first insulating material and connected to corresponding ones of the sensor trace groups; and circuitry configured to receive one or more signals from each of the trace groups via corresponding ones of the routing traces and generate control information in response thereto, the control information being for controlling operation of one or more processes or devices in communication with the circuitry. - View Dependent Claims (32, 33, 34, 35)
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Specification