Wire-array pressure and movement sensor

摘要

A multilayer wire array having an upper layer having a series wires arranged in an equally spaced, parallel relationship and a series of internal layers located in a spatial arrangement below the upper layer. Each internal layer is similar to the upper layer, wherein each internal layer is oriented preferably perpendicularly to the adjacent layers. The upper layer is provided in electrical connectivity with a power source. Each subsequent layer is provided in electrical communication with a sensing device. Pressure is applied to the wire array, wherein the pressure distorts the layers causing electrical communication between contacting wires. The connectivity provides an output that is sensed by the sensing device and subsequently analyzed to determine the location and any respective movement of the pressure applied to the array. The output data can be used as a pointing device for a computer, a user identity device, and a security device.

主权项

1. A wire-array pressure sensor comprising:
an array housing comprising a housing base member having a peripheral edge thereof and a series of housing sidewall members contiguous about said peripheral edge of said housing base member and extending upward therefrom forming an interior volume and a flexible upper housing segment spanning across an upper continuous edge formed by said series of housing sidewall members; a first plurality of segments of electrically conductive wires, said segments of wires spatially arranged parallel to one another forming a first plane of wires, said first plane of wires being located proximate and parallel to said flexible upper housing segment, each electrically conductive wire of said first plurality of segments of electrically conductive wires being individually identified, said first plurality of segments of electrically conductive wires being spatially arranged parallel and below said flexible upper housing segment; a second plurality of segments of electrically conductive wires, said segments of wires spatially arranged parallel to one another forming a second plane of wires, each electrically conductive wire of said second plurality of segments of electrically conductive wires being individually identified; wherein said second plane of wires is spatially arranged parallel and below said first plane of wires and said wires of said first plane are non-parallel to said wires of said second plane; ends of said wires of said first plane of wires are connected to a power source; ends of said wires of said second plane of wires are connected to a read out module; wherein in operation, a pressure is applied to a flexible upper housing segment causing said flexible upper housing segment to deflect, said deflection of said flexible upper housing segment deflects a portion of said first plurality of segments of electrically conductive wires of said first plane of wires causing contact between said portion of said first plurality of segments of electrically conductive wires of said first plane and a portion of said second plurality of segments of electrically conductive wires of said second plane, wherein said contact creates an electrical circuit identified by software associated with said read out module, and said software determines each of said locations of contact between said portion of said first plurality of segments of electrically conductive wires of said first plane and a portion of said second plurality of segments of electrically conductive wires of said second plane and provides at least one “X” and “Y” coordinate associated with said contact, wherein no current flows in any underlying layer of wires of said second plurality of segments of electrically conductive wires upon an electrical contact having been made between said uppermost layer of wires of said first plurality of segments of electrically conductive wires and said second plurality of segments of electrically conductive wires, wherein all other wires of said second plurality of segments of electrically conductive wires are interfaced with said read out module, wherein said read out module is programmed to determine an electric potential of all wires of said second plurality of segments of electrically conductive wires, and any direct or indirect electrical contact between any wire or wires of said first plurality of segments of electrically conductive wires with any wire or wires of any column or row of said second plurality of segments of electrically conductive wires would cause said electric potential of said wire or wires of said first plurality of segments of electrically conductive wires to be transferred to said wire or wires of said second plurality of segments of electrically conductive wires.