Touch sensitive device
First Claim
1. A device, comprising:
- a panel capable of supporting bending waves; and
means for applying signals to steer bending waves applied to the panel such that a wanted amplitude of vibration from the bending waves is maximized and a unwanted amplitude of vibration from the bending waves is minimized,wherein the bending waves provide tactile feedback at a plurality of sensing areas of the panel and the signals steering the bending waves are such that the signal sensing area touched by the user is antinodal and each other sensing area is nodal, where an antinodal point is one that has maximum velocity and a nodal point is one that has no velocity at any frequency of excitation.
4 Assignments
0 Petitions
Accused Products
Abstract
A touch sensitive device including a panel capable of supporting bending waves, a user-accessible touch sensitive screen on or forming part of a face of the panel, the touch sensitive screen having a plurality of different sensing areas, a plurality of vibration exciters coupled to the panel to apply bending waves to the panel to provide tactile feedback at the plurality of sensing areas in response to the user touching a sensing area, and signal processing means arranged to apply signals to the vibration exciters so as to steer bending waves applied to the panel by the plurality of vibration exciters whereby the amplitude of the applied bending waves is maximized at the sensing area touched by the user and reduced or minimized at each other sensing area.
-
Citations
14 Claims
-
1. A device, comprising:
-
a panel capable of supporting bending waves; and means for applying signals to steer bending waves applied to the panel such that a wanted amplitude of vibration from the bending waves is maximized and a unwanted amplitude of vibration from the bending waves is minimized, wherein the bending waves provide tactile feedback at a plurality of sensing areas of the panel and the signals steering the bending waves are such that the signal sensing area touched by the user is antinodal and each other sensing area is nodal, where an antinodal point is one that has maximum velocity and a nodal point is one that has no velocity at any frequency of excitation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14)
-
-
12. A method of operating a device, the method comprising:
-
applying signals to steer bending waves applied to a panel of the device, the panel supports the bending waves, such that wanted amplitude of vibration from the bending waves is maximized and unwanted amplitude of vibration from the bending waves is minimized, wherein the bending waves provide tactile feedback at a plurality of sensing areas of the panel and the signals steering the bending waves are such that the signal sensing area touched by the user is antinodal and each other sensing area is nodal, where an antinodal point is one that has maximum velocity and a nodal point is one that has no velocity at any frequency of excitation. - View Dependent Claims (13)
-
Specification