Finger beam for generating haptic feedback

• US 10,481,688 B1
• Filed: 09/19/2017
• Issued: 11/19/2019
• Est. Priority Date: 09/19/2016
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Wang, Paul X., Lehmann, Alex, Cheung, Michael Y.
• Primary Examiner(s): Yang, Nan-Ying
• Application Number:
  US15/709,045
• Time in Patent Office: 791 Days
• CPC Class Codes: G06F 2203/0331 Finger worn pointing device
• CPC Class Codes: G06F 3/014 Hand-worn input/output arrangements, e.g. data gloves
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors

Abstract

According to some embodiments, a haptic feedback component is configured to generate haptic feedback in accordance with movement of a user. The haptic feedback component includes a frame having a size and shape for receiving an appendage of a user, a flexible beam member coupled to the frame, and a haptic feedback element that is coupled to the flexible beam member, wherein the haptic feedback element actuates in response to receiving an electrical signal so as to cause the flexible beam member to displace from an initial configuration to a modified configuration such as to direct the haptic feedback towards the appendage.

Claims

1. A haptic feedback component for generating haptic feedback, comprising:

a frame having a size and shape for receiving an appendage of a user;

a flexible beam member coupled to the frame, wherein the flexible beam member has opposing first and second surfaces; and

a haptic feedback element that is coupled to the first surface of the flexible beam member, wherein the haptic feedback element actuates in response to receiving an electrical signal so as to cause the flexible beam member to displace from an initial configuration to a modified configuration, thereby applying a force to the appendage using the second surface of the flexible beam member.

2. The haptic feedback component of claim 1, wherein the size and shape of the frame defines a general displacement range of the flexible beam member.

3. The haptic feedback component of claim 1, further comprising:

an electrode that is configured to transmit the electrical signal to the haptic feedback element.

4. The haptic feedback component of claim 1, wherein the flexible beam member is coupled to a single edge of the frame, and the flexible beam member pivots via the single edge.

5. The haptic feedback component of claim 1, wherein a first end of the flexible beam member is coupled to a first portion of the frame and a second end of the flexible beam member is coupled to an opposing, second portion of the frame such that the flexible beam member is capable of displacing in a generally curvilinear manner.

6. The haptic feedback component of claim 1, wherein the displacement of the flexible beam member generates a predetermined amount of compression in the frame.

7. The haptic feedback component of claim 1, wherein the haptic feedback element comprises a piezoelectric element, an electroactive substrate, a magnetic assembly, a linear resonance actuator, or a voice coil.

8. The haptic feedback component of claim 3, wherein the haptic feedback component is electrically coupled to a controller that is configured to cause the electrode to transmit the electrical signal.

9. The haptic feedback component of claim 1, wherein the haptic feedback component includes a plurality of flexible beam members, and each flexible beam member of the plurality of flexible beam members includes a respective haptic feedback element.

10. A wearable haptic device for generating haptic feedback according to movement of an appendage of a user, the wearable haptic device comprising:

an enclosure that defines an internal cavity having a size and shape to receive the appendage;

a controller that is configured to generate a feedback parameter based on the movement of the appendage;

an electrode that is configured to generate an electrical signal based on the feedback parameter; and

a haptic feedback component carried within the internal cavity, wherein the haptic feedback component has a first portion, a second portion that extends from the first portion, and a haptic element on a first surface of the second portion, wherein haptic element is configured to actuate and move the second portion relative to the first portion from an initial configuration to a modified configuration upon receiving the electrical signal, wherein the haptic feedback component is configured to apply a force against the appendage of the user with a second surface of the second portion that is opposite the first surface, thereby generating the haptic feedback towards the appendage so as to be perceived by the user.

11. The wearable haptic device of claim 10, further comprising:

a preload tensioning mechanism configured to cause the enclosure to apply an amount of preload to the haptic feedback component via the appendage.

12. The wearable haptic device of claim 10, further comprising:

a wireless antenna configured for receiving a haptic feedback preference from an electronic device that is distinct from the wearable haptic device, wherein the controller is configured to form a modified feedback parameter based on the feedback parameter and the haptic feedback preference.

13. The wearable haptic device of claim 10, wherein the haptic feedback element comprises a piezoelectric element and wherein the second portion of the haptic feedback component is to a circular flexible frame.

14. The wearable haptic device of claim 10, wherein the haptic feedback element comprises a piezoelectric element, an electroactive substrate, a magnetic assembly, a linear resonance actuator, or a voice coil.

15. The wearable haptic device of claim 10, further comprising:

a sensor that is configured to transmit a contact parameter to the controller.

16. A method for generating haptic feedback using a haptic feedback device according to movement of an appendage of a user, the method comprising:

with a controller, receiving a motion parameter from an accelerometer;

with the controller, generating a feedback parameter based on the motion parameter; and

actuating a haptic feedback element on a first surface of a first portion of a haptic feedback component to move the first portion relative to a second portion of the haptic feedback component from an initial configuration to a modified configuration so as to apply a force against the appendage of the user with an opposing second surface of the first portion, thereby generating the haptic feedback based on the motion parameter and the feedback parameter.

17. The method of claim 16, wherein the method further comprises:

receiving a haptic feedback preference; and

combining the haptic feedback preference with the motion parameter to generate the feedback parameter.

18. The method of claim 17, wherein the haptic feedback preference is received via an antenna of the haptic feedback device from an electronic device.

19. The method of claim 17, wherein the controller is configured to adjust a ratio between the motion parameter and the haptic feedback preference.

20. The method of claim 16, wherein the haptic feedback component comprises a piezoelectric element, an electroactive substrate, a magnetic assembly, a linear resonance actuator, or a voice coil.