Vibrating substrate for haptic interface
First Claim
1. A haptic device having a substrate with a touch surface and one or more actuators that vibrate the substrate in a multiplicity of higher resonant modes, each of which has a high enough frequency to be inaudible and high enough amplitude to create a friction reduction effect at a plurality of vibrating regions on the substrate touch surface, wherein each of the one or more actuators provides vibration to more than one vibrating region, and wherein at least one of the higher resonant modes forms nodal lines that define vibrating regions on the substrate surface wherein the positions of the nodal lines are dependent upon the frequency of the respective higher resonant mode.
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Accused Products
Abstract
A haptic device is provided having a substrate with a touch surface and one or more actuators for vibrating the substrate in a multiplicity of higher resonant modes, each of which has a high enough frequency to be inaudible and high enough amplitude to create a friction reduction effect at a plurality of vibrating regions on the substrate touch surface.
83 Citations
32 Claims
- 1. A haptic device having a substrate with a touch surface and one or more actuators that vibrate the substrate in a multiplicity of higher resonant modes, each of which has a high enough frequency to be inaudible and high enough amplitude to create a friction reduction effect at a plurality of vibrating regions on the substrate touch surface, wherein each of the one or more actuators provides vibration to more than one vibrating region, and wherein at least one of the higher resonant modes forms nodal lines that define vibrating regions on the substrate surface wherein the positions of the nodal lines are dependent upon the frequency of the respective higher resonant mode.
- 18. A haptic device having a substrate with a touch surface and one or more actuators for vibrating the substrate in one or more higher resonant modes in a manner to establish a multimodal pattern on the substrate surface wherein the resonant frequency is high enough to be inaudible and the amplitude is high enough to create a friction reduction effect at a plurality of vibrating regions defined by nodal lines, wherein each of the one or more actuators provides vibration to more than one vibrating region and wherein at least one of the higher resonant modes forms nodal lines that define vibrating regions on the substrate surface wherein the positions of the nodal lines are dependent upon the frequency of the respective higher resonant mode.
- 20. A haptic device having a substrate with a touch surface and one or more actuators for vibrating the substrate, wherein each of the one or more actuators provides vibration to more than one vibrating region, wherein the vibration is at a resonant frequency that forms nodal lines that define the vibrating regions on the substrate surface and is high enough to be inaudible and the amplitude is high enough to create a friction reduction effect at a plurality of vibrating regions on the substrate touch surface, and in combination with a mounting structure having mounting elements for supporting the haptic device proximate multiple separate locations corresponding to ends of the nodal lines.
- 24. A method of controlling a haptic device that includes imparting vibration (oscillation) to a substrate in a multiplicity of higher resonant modes in sequential manner or concurrently wherein each higher resonant mode has a high enough frequency to be inaudible and high enough amplitude to create a friction reduction effect at a plurality of vibrating regions on the substrate touch surface with the location of the plurality of vibrating regions being defined by nodal lines and with the location of the nodal lines and vibrating regions defined by the nodal lines varying based on the higher resonant mode utilized.
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28. A method of controlling a haptic device that includes imparting vibration (oscillation) to a substrate in one or more higher resonant modes in a manner to establish a multimodal pattern on a surface of the substrate wherein in a first mode resonant frequency is controlled with one or more actuators so as to be high enough to be inaudible and amplitude is controlled so as to be high enough to create a friction reduction effect at a plurality of vibrating regions defined by nodal lines that are dependent upon the first mode resonant frequency, and further comprising imparting vibration to the substrate at an amplitude and resonant frequency of a higher mode that is greater than the first mode and that is effective to establish on the surface of the substrate a plurality of distinct vibrating regions defined by nodal lines that are dependent upon the resonant frequency of the higher mode, wherein each of the one or more actuators provides vibration to more than one vibrating region.
- 29. A method of supporting a haptic device having a substrate with a touch surface and one or more actuators for vibrating the substrate, wherein each of the one or more actuators provides vibration to more than one vibrating region, with the vibrating regions being defined by nodal lines having locations that at are dependent upon the resonant frequency of the vibration, with the frequency being high enough to be inaudible and the amplitude being high enough to create a friction reduction effect at a plurality of vibrating regions on the substrate touch surface, and comprising supportively connecting mounting elements of a mounting structure to the substrate proximate multiple locations corresponding to ends of the nodal lines.
Specification