Haptic feedback device and a method of controlling same

Patent metadata

Field	Value
Publication number	US-12340022-B2
Application number	US-202218277665-A
Country	US
Kind code	B2
Filing date	Feb 17, 2022
Priority date	Feb 18, 2021
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

A haptic feedback device is disclosed. The haptic feedback device may include at least one texture emulator; a housing at least partially containing the texture emulator; and a controller configured to: receive instructions to provide a texture sensation; and control the texture emulator to apply force to at least one location on a surface based on the received instructions.

First claim

What is claimed is:

1. A haptic feedback device, comprising:
at least one texture emulator;
a housing at least partially containing the texture emulator;
a three degrees of freedom (DoF) manipulator configured to manipulate the housing to apply surface orientation and normal forces to a surface of a user;
a motion tracking device; and
a controller configured to:
receive instructions to provide a texture sensation; and
control the texture emulator to apply force to at least one location on a surface based on the received instructions.

2. The haptic feedback device of claim 1 , wherein the at least one texture emulator comprises:
an array of actuators, each configured to provide a linear stroke to a respective haptic rod; and
wherein the housing is configured to hold the array of actuators and rods, allowing each rod to extend from an opening in a surface of the housing when provided with a linear movement, and wherein the controller is configured to control one or more actuators from the array to provide required strokes.

3. The haptic feedback device of claim 2 , wherein each actuator in the array is located at a known location in the array and designed to provide the linear movement in a specific angle with respect to the surface.

4. The haptic feedback device of claim 2 , wherein the controller is configured to:
determine linear movements for at least some of the actuators in the array based on the received texture sensation; and
control at least some of the actuators in the array to provide one or more linear movements to form the sensation of the required texture.

5. The haptic feedback device of claim 2 , wherein each actuator comprises:
a metallic coil,
a static magnet;
a floating magnet;
a static cover attached to the static magnet; and
an anti-magnetic cover attached to the floating magnet and configured to be connected to the haptic rod.

6. The haptic feedback device of claim 2 , wherein the actuators may provide a frequency of up to 200 Hz.

7. The haptic feedback device of claim 2 , further comprising a flexible layer, connected to three DC motors, the flexible layer covering the tips of the haptic rods.

8. The haptic feedback device of claim 1 , wherein the housing comprises a plurality of micro-holes; and
wherein the at least one texture emulator comprises:
a plurality of tubes, each tube is connected from one end to one of the micro-holes in the housing and from the other end to a valve;
and a pressurized gas supplier configured to supply pressurized gas to each tube,
and wherein the controller is configured to control one or more of the valves to provide gas to be ejected from one or more of the micro-holes according to the received instructions.

9. The haptic feedback device of claim 1 , wherein the texture emulator comprises:
a contact surface; and
a vibration motor connected to the contact surface,
and wherein the controller is configured to control a frequency and amplitude of the vibration motor based on the received instructions.

10. The haptic feedback device of claim 1 , wherein the DoF manipulator comprises:
two or more arms pivotally connected to the housing and configured to apply normal force and to rotate the surface of the housing around axes parallel to the surface of the housing.

11. The haptic feedback device of claim 1 , wherein the housing is mounted on a computer input device, selected from: a computer mouse, a keyboard, and a joystick.

12. The haptic feedback device of claim 1 , further comprising a motion tracking glove, and wherein the at least one texture emulator is mounted on one or more fingers of the glove.

13. A method of controlling a haptic feedback device, comprising:
receiving instructions, from an external computing device, to provide a texture sensation; and
controlling a texture emulator, included in the haptic feedback device, to apply force to at least one location on a surface based on the received instructions,
wherein the haptic feedback device comprises:
at least one texture emulator;
a housing at least partially containing the texture emulator;
a motion tracking device; and
a controller.

14. The method of claim 13 , further comprising:
controlling a three degrees of freedom (DoF) manipulator, included in the haptic feedback device, to apply surface orientation and normal forces to a surface of a user.

15. A texture emulator, comprising:
a texture emulating surface;
a motion tracking device; and
an array of actuators, each configured to provide a linear stroke to a respective haptic rod, wherein the haptic rod is configured to provide a sensation of texture,
and wherein each rod extends from an opening in the texture emulating surface when provided with a linear movement.

16. The texture emulator of claim 15 , wherein each actuator in the array is located at a known location in the array and designed to provide the linear movement in a specific angle with respect to the texture emulating surface.

17. The texture emulator of claim 15 , wherein each actuator comprises:
a metallic coil,
a static magnet;
a floating magnet;
a static cover attached to the static magnet; and
an anti-magnetic cover attached to the floating magnet and configured to be connected to the haptic rod.

Assignees

• Technion Res & Dev Foundation

Inventors

• Wolf Alon
• Zelnik-Manor Lihi
• Herbst Yair
• Chechik Yoni

Classifications

• G09B21/003

  using tactile presentation of the information, e.g. Braille displays · CPC title

• A63F13/285 Primary

  Generating tactile feedback signals via the game input device, e.g. force feedback · CPC title

• G06F3/03543

  Mice or pucks (G06F3/03541 takes precedence) · CPC title

• G06F3/014

  Hand-worn input/output arrangements, e.g. data gloves · CPC title

• G06F3/016 Primary

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title