PRESSURE SENSING SYSTEM AND SEAT CUSHION HAVING THE PRESSURE SENSING SYSTEM
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United States of America
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Issued Date -
Nov 28, 2024
app pub date -
Aug 6, 2024
filing date -
Aug 6, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A pressure sensing system, seat cushion incorporating the pressure sensing system, and method of sensing a weight group associated with an occupant of an automotive seat are described. The pressure sensing system includes a layer of an electrically conductive foam and a flexible printed circuit that includes a flexible substrate and N horizontal sensing wires and M vertical sensing wires securely placed on a top surface of the flexible substrate. The horizontal sensing wires intersect with the vertical sensing wires and form (N×M) intersections. The layer of an electrically conductive foam is placed on top of the N horizontal sensing wires and the M vertical sensing wires. When a pressure is applied to the layer of the electrically conductive foam, each intersection generates in real time an electric flux density value to reflect a degree of a compression caused by the pressure to a corresponding point of the electrically conductive foam.
First Claim
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International Classification(s)
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- G01L:MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL ....
- B60R:VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT ....
- B29K:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, ....
- B60N:VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROV....
- B29L:INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RE....
- H05K:PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAIL....
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