Flexible three-dimensional sensing input device

Patent metadata

Field	Value
Publication number	US-11168973-B2
Application number	US-202117189505-A
Country	US
Kind code	B2
Filing date	Mar 2, 2021
Priority date	Jan 20, 2020
Publication date	Nov 9, 2021
Grant date	Nov 9, 2021

Abstract

A device may include a flexible material defining an exterior of a cavity, an interior electrode located within the cavity, a first peripheral electrode peripherally located with respect to the interior electrode on a first side of the interior electrode, a second peripheral electrode peripherally located with respect to the interior electrode on a second side of the interior electrode where the interior electrode is between the first peripheral electrode and the second peripheral electrode, a controller electrically connected to the interior electrode, the first peripheral electrode, and the second peripheral electrode, and programmed instructions written into memory of the controller where the programmed instructions cause the controller, when executed to measure a first capacitance between the first peripheral electrode and the interior electrode and measure a second capacitance between the second peripheral electrode and the interior electrode.

First claim

The invention claimed is:

1. A device, comprising:
a flexible material defining an exterior of a cavity;
an interior electrode located within the cavity;
a first peripheral electrode peripherally located with respect to the interior electrode on a first side of the interior electrode;
a second peripheral electrode peripherally located with respect to the interior electrode on a second side of the interior electrode;
wherein the interior electrode is between the first peripheral electrode and the second peripheral electrode;
a controller electrically connected to the interior electrode, the first peripheral electrode, and the second peripheral electrode;
programmed instructions written into memory of the controller, wherein the programmed instructions cause the controller, when executed to:
measure a first capacitance between the first peripheral electrode and the interior electrode; and
measure a second capacitance between the second peripheral electrode and the interior electrode.

2. The device of claim 1 , wherein the interior electrode is located approximately in a central position of the cavity.

3. The device of claim 1 , wherein the interior electrode is a transmit electrode, and the first peripheral electrode and the second peripheral electrode are sense electrodes.

4. The device of claim 1 , where the flexible material is an elastomeric material.

5. The device of claim 1 , wherein the flexible material defines an exterior of a ball when no external forces are applied to the exterior.

6. The device of claim 1 , wherein the flexible material defines an exterior of a cylinder when no external forces are applied to the exterior.

7. The device of claim 1 , wherein the programmed instructions further cause the controller, when executed, to:
interpret the first capacitance to determine a first distance between the interior electrode and the first peripheral electrode;
interpret the second capacitance to determine a second distance between the interior electrode and the second peripheral electrode;
use the first distance and the second distance to determine a shape of the exterior when at least one external force is applied to the exterior.

8. The device of claim 1 , wherein the programmed instructions further cause the controller, when executed, to:
interpret the first capacitance to determine a first distance between the interior electrode and the first peripheral electrode;
interpret the second capacitance to determine a second distance between the interior electrode and the second peripheral electrode;
use the first distance and the second distance to determine a force value of external forces applied to the exterior.

9. The device of claim 1 , wherein the programmed instructions further cause the controller, when executed, to:
interpret the first capacitance to determine a first distance between the interior electrode and the first peripheral electrode;
interpret the second capacitance to determine a second distance between the interior electrode and the second peripheral electrode;
use the first distance and the second distance to determine an expansion amount of the exterior.

10. The device of claim 1 , wherein the programmed instructions further cause the controller, when executed, to:
subtract an influence on at least one of the first capacitance and the second capacitance, wherein the influence is generated by electrically conductive medium disposed within the cavity and connected to the interior electrode.

11. The device of claim 1 , wherein measurement values of first capacitance and the second capacitance are used as inputs to control an aspect of a gaming application.

12. The device of claim 1 , further comprising:
an electrically conductive medium connected to the interior electrode located within the cavity;
a shield covering the electrically conductive medium to prevent a voltage on the electrically conductive medium from affecting an electric field within the cavity.

13. The device of claim I, further comprising a peripheral transmit electrode;
wherein at least a portion of the peripheral transmit electrode is positioned adjacent to at least one of the first peripheral electrode and the second peripheral electrode;
wherein the programmed instructions cause the controller; when executed, to:
determine an exterior capacitance between the peripheral transmit electrode and the at least one of the first peripheral electrode and the second peripheral electrode; and
use the exterior capacitance to determine a proximity value of an external object to the exterior.

14. The device of claim 1 , wherein at least one of the first peripheral electrode and the second peripheral electrode is attached to the flexible material.

15. The device of claim 1 , wherein at least one of the first peripheral electrode and the second peripheral electrode is proximate to the flexible material.

16. A computer-program product for using a device, the computer-program product comprising a non-transitory computer-readable medium storing instructions executable by a processor to:
measure a first capacitance between a first peripheral electrode and an interior electrode located within an interior of a cavity defined, at least in part, by an elastomeric material; and
measure a second capacitance between the second peripheral electrode and the interior electrode;
wherein the interior electrode is between the first peripheral electrode and the second peripheral electrode.

17. The computer-program product of claim 16 , wherein the instructions are executable by a processor to:
use the first capacitance and the second capacitance to determine a current shape of an exterior of the flexible material.

18. The computer-program product of claim 16 , wherein the instructions are executable by a processor to:
use the first capacitance and the second capacitance to determine a force value of external forces applied to an exterior of the flexible material.

19. The computer-program product of claim 16 , wherein the instructions are executable by a processor to:
use the first capacitance and the second capacitance to determine distance to determine an expansion amount of the flexible material.

20. The computer-program product of claim 16 , wherein the instructions are executable by a processor to:
determine an exterior capacitance between a peripheral transmit electrode and the at least one of the first peripheral electrode and the second peripheral electrode; and
use the exterior capacitance to determine a proximity value of an external object to the exterior.

Assignees

• Cirque Corp

Inventors

• Bytheway Jared
• Vincent Paul

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• G06F3/044

  by capacitive means · CPC title

• H01M2010/4278

  Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller · CPC title

• H01M2200/20

  Pressure-sensitive devices · CPC title

• G01B2210/44

  with detectors on both sides of the object to be measured · CPC title