Smart material for haptic feedback

Patent metadata

Field	Value
Publication number	US-9911292-B1
Application number	US-201615291132-A
Country	US
Kind code	B1
Filing date	Oct 12, 2016
Priority date	Oct 12, 2016
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

This disclosure relates to haptic actuators, and suitably haptic actuators based on repulsion and attraction between a coil and a magnet. Such haptic actuators are useful in structural materials, such as elements of wearables or accessories.

First claim

What is claimed is:

1. A smart material for providing haptic feedback to a user, comprising:
a. a structural material comprising a textile or a fabric;
b. a first actuator associated with the structural material; and
c. a second actuator associated with the structural material,
wherein the first actuator and the second actuator are oriented such that a magnetic field of the first actuator and a magnetic field of the second actuator are substantially diametrically opposed to each other so as to provide the haptic feedback to the user.

2. The smart material of claim 1 , wherein the first actuator and the second actuator are on one of, a single piece of the structural material, attached pieces of the structural material, and separate pieces of the structural material.

3. The smart material of claim 1 , wherein the first actuator and/or the second actuator are integrated into the structural material.

4. The smart material of claim 1 , wherein the first actuator and/or the second actuator are fixedly attached to the structural material.

5. The smart material of claim 1 , wherein the first actuator and/or the second actuator are enclosed in an encapsulating material.

6. The smart material of claim 5 , wherein the encapsulating material comprises a water-resistant material or polymer.

7. A smart material for providing haptic feedback to a user, comprising:
a. a structural material comprising a textile or a fabric;
b. a coil associated with the structural material; and
c. a magnet associated with the structural material,
wherein the coil and the magnet are oriented such that a magnetic field of the coil and a magnetic field of the magnet are substantially diametrically opposed to each other so as to provide the haptic feedback to the user.

8. The smart material of claim 7 , wherein the coil and the magnet are on one of, a single piece of the structural material, attached pieces of the structural material, and separate pieces of the structural material.

9. The smart material of claim 7 , wherein the coil and/or the magnet are integrated into the structural material.

10. The smart material of claim 7 , wherein the coil and/or the magnet are fixedly attached to the structural material.

11. The smart material of claim 7 , wherein the coil is enclosed in an encapsulating material.

12. The smart material of claim 11 , wherein the encapsulating material comprises a water-resistant material or polymer.

13. The smart material of claim 7 , wherein the coil comprises copper.

14. The smart material of claim 7 , wherein the coil comprises a conductive fiber.

15. The smart material of claim 7 , wherein the magnet comprises a nanomagnetic material.

16. The smart material of claim 7 , further comprising a power supply connected to the coil.

17. A smart material for providing haptic feedback to a user, comprising:
a. a structural material comprising a textile or a fabric;
b. a copper coil associated with the structural material;
c. a power supply connected to the copper coil; and
d. a magnet associated with the structural material,
wherein the copper coil and the magnet are oriented such that a magnetic field of the copper coil and a magnetic field of the magnet are substantially diametrically opposed to each other so as to provide the haptic feedback to the user.

18. The smart material of claim 17 , wherein the copper coil and the magnet are on one of, a single piece of the structural material, attached pieces of the structural material, and separate pieces of the structural material.

19. The smart material of claim 17 , wherein the copper coil is enclosed in an encapsulating material, and the encapsulating material and the magnet are both fixedly attached to the structural material.

20. The smart material of claim 19 , wherein the encapsulating material comprises a water-resistant material or polymer.

21. The smart material of claim 17 , wherein the magnet comprises a nanomagnetic material.

22. A method for providing haptic feedback to a user via a smart material, the smart material, comprising:
a. a structural material comprising a textile or a fabric;
b. a coil associated with the structural material;
c. a power supply connected to the coil; and
d. a magnet associated with the structural material,
wherein the coil and the magnet are oriented such that a magnetic field of the coil and a magnetic field of the magnet are substantially diametrically opposed to each other;
the method comprising:

i. transmitting an activating signal to the power supply; and
ii. generating movement between the coil and the magnet, resulting in actuation of the structural material to provide haptic feedback to the user.

23. The method of claim 22 , wherein the generating comprises generating cycles of attraction and repulsion between the coil and the magnet to create oscillations of the coil and magnet therebetween.

24. The method of claim 23 , wherein the oscillations occur at a frequency of less than about 10 Hz.

25. The method of claim 23 , wherein the oscillations occur at a frequency of about 10 Hz to about 100 Hz, or 1 Hz to about 1 kHz.

26. The method of claim 22 , wherein the coil and the magnet are on one of, a single piece of the structural material, attached pieces of the structural material, and separate pieces of the structural material.

Assignees

• Immersion Corp

Inventors

• Khoshkava Vahid
• Cruz Hernandez Juan Manuel

Classifications

• G06F3/01

  Input arrangements or combined input and output arrangements for interaction between user and computer (G06F3/16 takes precedence) · CPC title

• G08B6/00 Primary

  Tactile signalling systems, e.g. tactile personal calling systems · CPC title

• H02J7/02

  for charging batteries from AC mains by converters · CPC title

• G09B21/00

  Teaching, or communicating with, the blind, deaf or mute (audible presentation of material to be studied G09B5/04; devices or methods for replacing direct visual or auditory perception by another kind of perception A61F9/08, A61F11/04; audible indication of meter readings or of colour G01D7/12; watches for blind persons G04B25/02; speech analysis, speech recognition G10L; sound-recording or reproducing, per se G11B) · CPC title

• H01F27/32

  Insulating of coils, windings, or parts thereof · CPC title