Acoustic wave touch panel for use with a non-active stylus

Claim 2

An acoustic wave touch panel responsive to a non-active stylus touch thereon comprising: an acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate acoustic waves along a plurality of generally parallel paths each representing a different axial touch position, a Z-axis force over a localized area of said touch surface by an acoustic wave perturbating material forming a detectable perturbation in an acoustic wave intersecting said force; an elastomeric layer overlying said touch responsive surface of said acoustic wave propagating substrate, said elastomeric layer being elastically deformable in response to a Z-axis force to transmit said Z-axis force to said acoustic wave propagating substrate to cause a perturbation in said acoustic wave; and a load spreading plate with a stylus contacting surface, said plate overlying said elastomeric layer and transmitting to said elastomeric layer a Z-axis force generated by a non-active stylus contacting said load spreading plate surface to cause a detectable perturbation in an acoustic wave propagating in said acoustic wave substrate.

Claim 3

An acoustic wave touch panel as recited in claim 1 wherein said load spreading plate has a Youngs Modulus in the approximate range of 0.3×10 10 Newtons/meter 2 to 8×10 10 Newtons/meter 2 and a Shearing modulus in the approximate range of 0.10×10 10 Newtons/meter 2 to 3×10 10 Newtons/meter 2 .

Claim 4

An acoustic wave touch panel as recited in claim 1 wherein said load spreading plate is glass.

Claim 5

An acoustic wave touch panel as recited in claim 3 wherein said load spreading plate has a thickness between 10-20 mils.

Claim 6

An acoustic wave touch panel as recited in claim 1 wherein said load spreading plate is a hard plastic.

Claim 7

An acoustic wave touch panel as recited in claim 5 wherein said hard plastic is PET.

Claim 8

An acoustic wave touch panel as recited in claim 1 wherein said load spreading plate is transparent.

Claim 9

An acoustic wave touch panel as recited in claim 1 wherein said elastomeric layer is a polyurethane.

Claim 10

An acoustic wave touch panel as recited in claim 1 wherein said elastomeric layer is a rubber.

Claim 11

An acoustic wave touch panel as recited in claim 9 wherein said elastomeric layer has a Youngs Modulus in the approximate range of 1×10 6 Newtons/meter 2 to 1×10 9 Newtons/meter 2 .

Claim 12

An acoustic wave touch panel as recited in claim 1 wherein said elastomeric layer is transparent.

Claim 13

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator generates a Shear wave for propagation in said acoustic wave propagating substrate.

Claim 14

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator generates a Surface Acoustic Wave for propagation in said acoustic wave propagating substrate.

Claim 15

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator generates a Lamb wave for propagation in said acoustic wave propagating substrate.

Claim 16

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator generates a Love wave for propagation in said acoustic wave propagating substrate.

Claim 17

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator generates a Zeroth Order Horizontally Polarized Shear wave for propagation in said acoustic wave propagating substrate.

Claim 18

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator includes an acoustic wave transceiver.

Claim 19

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator includes an acoustic wave transmitter and further including an acoustic wave receiver mounted on said acoustic wave propagating substrate.

Claim 20

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator includes at least one acoustic wave reflective array.

Claim 21

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator includes a plurality of discrete acoustic wave transmitters.

Claim 22

An acoustic wave touch panel as recited in claim 1 wherein said acoustic wave generator includes a plurality of discrete acoustic wave transceivers.

Claim 23

An acoustic wave touch panel responsive to a non-active stylus touch thereon comprising: an acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate an acoustic wave along a path, a Z-axis force by an acoustic wave perturbating material on said touch surface at a position along said path forming a detectable perturbation in said acoustic wave; an elastomeric layer overlying said touch responsive surface of said acoustic wave propagating substrate, said elastomeric layer being elastically deformable in response to a Z-axis force to transmit said Z-axis force to said acoustic wave propagating substrate to cause a perturbation in said acoustic wave; and a load spreading plate with a stylus contacting surface, said load spreading plate overlying said elastomeric layer and transmitting to said elastomeric layer a Z-axis force generated by a non-active stylus contacting said load spreading plate surface to cause a detectable perturbation in an acoustic wave propagating in said acoustic wave substrate.

Claim 24

An acoustic wave touch panel responsive to a non-active stylus touch thereon comprising: an acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate an acoustic wave along a path, a Z-axis force by an acoustic wave perturbating material on said touch surface at a position along said path forming a detectable perturbation in said acoustic wave; an elastomeric layer overlying said touch responsive surface of said acoustic wave propagating substrate, said elastomeric layer being elastically deformable in response to a Z-axis force to transmit said Z-axis force to said acoustic wave propagating substrate to cause a perturbation in said acoustic wave; and a load spreading plate with a stylus contacting surface, said load spreading plate overlying said elastomeric layer and transmitting to said elastomeric layer a Z-axis force generated by a non-active stylus contacting said load spreading plate surface to cause a detectable perturbation in an acoustic wave propagating in said acoustic wave substrate.

Claim 25

An acoustic wave touch panel as recited in claim 22 where said load spreading plate has a Youngs Modulus in the approximate range of 0.3×10 10 Newtons/meter 2 to 8×10 10 Newtons/meter 2 and a Shearing modulus in the approximate range of 0.10×10 10 Newtons/meter 2 to 3×10 10 Newtons/meter 2 .

Claim 26

An acoustic wave touch panel as recited in claim 22 wherein said load spreading plate is glass.

Claim 27

An acoustic wave touch panel as recited in claim 24 wherein said load spreading plate has a thickness between 10-20 mils.

Claim 28

An acoustic wave touch panel as recited in claim 22 wherein said load spreading plate is a hard plastic.

Claim 29

An acoustic wave touch panel as recited in claim 26 wherein said hard plastic is PET.

Claim 30

An acoustic wave touch panel as recited in claim 22 wherein said load spreading plate is transparent.

Claim 31

An acoustic wave touch panel as recited in claim 22 wherein said elastomeric layer is a polyurethane.

Claim 32

An acoustic wave touch panel as recited in claim 22 wherein said elastomeric layer is a rubber.

Claim 33

An acoustic wave touch panel as recited in claim 30 wherein said elastomeric layer has a Youngs Modulus in the approximate range of 1×10 6 Newtons/meter 2 to 1×10 9 Newtons/meter 2 .

Claim 34

An acoustic wave touch panel as recited in claim 22 wherein said elastomeric layer is transparent.

Claim 35

An acoustic wave touch panel as recited in claim 22 wherein said acoustic wave generator generates a Shear wave for propagation in said acoustic wave propagating substrate.

Claim 36

An acoustic wave touch panel as recited in claim 22 wherein said acoustic wave generator generates a Lamb wave for propagation in said acoustic wave propagating substrate.

Claim 37

An acoustic wave touch panel as recited in claim 22 wherein said acoustic wave generator generates a Love wave for propagation in said acoustic wave propagating substrate.

Claim 38

An acoustic wave touch panel as recited in claim 22 wherein said acoustic wave generator generates a Surface Acoustic Wave for propagation in said acoustic wave propagating substrate.

Claim 39

An acoustic wave touch panel as recited in claim 22 wherein said acoustic wave generator includes an acoustic wave transceiver.

Claim 40

An acoustic wave touch panel as recited in claim 22 wherein said acoustic wave generator includes an acoustic wave transmitter and further including an acoustic wave receiver mounted on said substrate.

Claim 41

An acoustic wave touch panel responsive to a non-active stylus touch thereon comprising: a transparent acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate acoustic waves along a plurality of generally parallel paths each representing a different axial touch position, a Z-axis force on said touch surface by an acoustic wave perturbating material forming a detectable perturbation in an acoustic wave intersecting said touch; a transparent elastomeric layer overlying said touch responsive surface of said acoustic wave propagating substrate, said elastomeric layer being elastically deformable in response to a Z-axis force to transmit said Z-axis force to said acoustic wave propagating substrate to cause a perturbation in said acoustic wave; a transparent load spreading plate with a stylus contacting surface, said load spreading plate overlying said elastomeric layer and transmitting to said elastomeric layer a Z-axis force generated by a non-active stylus contacting said load spreading plate surface to cause a detectable perturbation in an acoustic wave propagating in said acoustic wave substrate; and an anti-reflective coating on at least one of said elastomeric layer, load spreading plate or substrate.

Claim 42

An acoustic wave touch panel responsive to a non-active stylus touch thereon comprising: a transparent acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate acoustic waves along a plurality of generally parallel paths each representing a different axial touch position, a Z-axis force on said touch surface by an acoustic wave perturbating material forming a detectable perturbation in an acoustic wave intersecting said touch; a transparent elastomeric layer overlying said touch responsive surface of said acoustic wave propagating substrate, said elastomeric layer being elastically deformable in response to a Z-axis force to transmit said Z-axis force to said acoustic wave propagating substrate to cause a perturbation in said acoustic wave; a transparent load spreading plate with a stylus contacting surface, said load spreading plate overlying said elastomeric layer and transmitting to said elastomeric layer a Z-axis force generated by a non-active stylus contacting said load spreading plate surface to cause a detectable perturbation in an acoustic wave propagating in said acoustic wave substrate; and an anti-reflective coating on at least one of said elastomeric layer, load spreading plate or substrate.

Claim 43

An acoustic wave touch panel as recited in claim 39 wherein said load spreading plate has a Youngs Modulus in the approximate range of 0.3×10 10 Newtons/meter 2 to 8×10 10 Newtons/meter 2 and a Shearing modulus in the approximate range of 0.10×10 10 Newtons/meter 2 to 3×10 10 Newtons/meter 2 .

Claim 44

An acoustic wave touch panel as recited in claim 39 wherein said load spreading plate is glass.

Claim 45

An acoustic wave touch panel as recited in claim 41 wherein said load spreading plate has a thickness between 10-20 mils.

Claim 46

An acoustic wave touch panel as recited in claim 39 wherein said load spreading plate is a hard plastic.

Claim 47

An acoustic wave touch panel as recited in claim 39 wherein said elastomeric layer has a Youngs Modulus in the approximate range of 1×10 6 Newtons/meter 2 to 1×10 9 Newtons/meter 2 .

Claim 48

An acoustic wave touch panel as recited in claim 39 wherein said elastomeric layer is a polyurethane.

Claim 49

An acoustic wave touch panel as recited in claim 39 wherein said elastomeric layer is a rubber.

Claim 50

An acoustic wave touch panel as recited in claim 39 wherein said acoustic wave generator generates a Shear wave for propagation in said acoustic wave propagating substrate.

Claim 51

An acoustic wave touch panel as recited in claim 39 wherein said acoustic wave generator generates a Surface Acoustic Wave for propagation in said acoustic wave propagating substrate.

Claim 52

An acoustic wave touch panel as recited in claim 39 wherein said acoustic wave generator generates a Lamb wave for propagation in said acoustic wave propagating substrate.

Claim 53

An acoustic wave touch panel as recited in claim 39 wherein said acoustic wave generator generates a Love wave for propagation in said acoustic wave propagating substrate.

Claim 54

An acoustic wave touch panel as recited in claim 39 wherein said acoustic wave generator generates a Zeroth Order Horizontally Polarized Shear wave for propagation in said acoustic wave propagating substrate.

Claim 55

An acoustic wave touch panel responsive to a non-active stylus touch thereon, comprising: an acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate an acoustic wave along a path, a Z-axis force by an acoustic wave perturbating material on said touch surface at a position along said path forming a detectable perturbation in said acoustic wave; an overlay mounted on said touch responsive surface of said acoustic wave propagating substrate, said overlay including an acoustic wave perturbating material disposed adjacent said touch responsive surface, said acoustic wave perturbating material being responsive to a non-active stylus contact on said overlay creating a Z-axis force for transmitting to said acoustic wave propagating substrate a Z-axis force over a localized area that is greater than said stylus contact area.

Claim 56

An acoustic wave touch panel responsive to a non-active stylus touch thereon, comprising: an acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate an acoustic wave along a path, a Z-axis force by an acoustic wave perturbating material on said touch surface at a position along said path forming a detectable perturbation in said acoustic wave; an overlay mounted on said touch responsive surface of said acoustic wave propagating substrate, said overlay including an acoustic wave perturbating material disposed adjacent said touch responsive surface, said acoustic wave perturbating material being responsive to a non-active stylus contact on said overlay creating a Z-axis force for transmitting to said acoustic wave propagating substrate a Z-axis force over a localized area that is greater than said stylus contact area.

Claim 57

An acoustic wave touch panel as recited in claim 52 wherein said overlay includes a load spreading plate for distributing the force from the non-active stylus to said acoustic wave perturbating material.

Claim 58

An acoustic wave touch panel comprising: an acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate an acoustic wave along a path, a Z-axis force by an acoustic wave perturbating material on said touch surface at a position along said path forming a detectable perturbation in said acoustic wave; an overlay mounted on said touch responsive surface of said acoustic wave propagating substrate, said overlay including an acoustic wave perturbating material disposed adjacent said touch responsive surface and having a Youngs Modulus in the approximate range of 1×10 6 Newtons/meter 2 to 1×10 9 Newtons/meter 2 , said acoustic wave perturbating material being responsive to a Z-axis force on said overlay for transmitting a Z axis force to said acoustic wave propagating substrate.

Claim 59

An acoustic wave touch panel comprising: an acoustic wave propagating substrate having a touch responsive surface and at least one acoustic wave generator mounted on said substrate to propagate an acoustic wave along a path, a Z-axis force by an acoustic wave perturbating material on said touch surface at a position along said path forming a detectable perturbation in said acoustic wave; an overlay mounted on said touch responsive surface of said acoustic wave propagating substrate, said overlay including an acoustic wave perturbating material disposed adjacent said touch responsive surface and having a Youngs Modulus in the approximate range of 1×10 6 Newtons/meter 2 to 1×10 9 Newtons/meter 2 , said acoustic wave perturbating material being responsive to a Z-axis force on said overlay for transmitting a Z axis force to said acoustic wave propagating substrate.

Claim 60

An acoustic wave touch panel as recited in claim 54 wherein said overlay includes a load spreading plate for distributing the Z-axis force on said overlay to said acoustic wave perturbating material.

Claim 61

An acoustic wave touch panel as recited in claim 54 wherein said load spreading plate has a Youngs Modulus in the approximate range of 0.3×10 10 Newtons/meter 2 to 8×10 10 Newtons/meter 2 and a Shearing modulus in the approximate range of 0.10×10 10 Newtons/meter 2 to 3×10 10 Newtons/meter 2 .