Wearable device, electronic system and device, tactile feedback method and storage medium

Patent metadata

Field	Value
Publication number	US-11537206-B2
Application number	US-201816474397-A
Country	US
Kind code	B2
Filing date	Nov 20, 2018
Priority date	Apr 16, 2018
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A wearable device, an electronic system, an electronic device, a tactile feedback method and a storage medium are provided. The wearable device with tactile feedback includes an electromagnetic coil set, a driving circuit and a control circuit, the driving circuit is coupled with the electromagnetic coil set; the control circuit is configured to control the driving circuit to generate and output a coil current corresponding to the electromagnetic coil set to the electromagnetic coil set according to a control command; and the electromagnetic coil set is configured to receive the coil current and generate the tactile feedback based on the coil current.

First claim

The invention claimed is:

1. A wearable device with tactile feedback, comprising: an electromagnetic coil set, a driving circuit and a control circuit,
wherein the driving circuit is coupled with the electromagnetic coil set;
the control circuit is configured to control the driving circuit to generate and output a coil current corresponding to the electromagnetic coil set to the electromagnetic coil set according to a control command; and
the electromagnetic coil set is configured to receive the coil current and generate the tactile feedback based on the coil current,
wherein the electromagnetic coil set includes a plurality of electromagnetic coils, and the coil currents of the plurality of electromagnetic coils are different from each other,
the electromagnetic coil set is configured to generate a plurality of magnetic fields under the action of the coil currents, each of the plurality of electromagnetic coils is configured to generate a magnetic field under the action of the coil currents, the plurality of electromagnetic coils is configured to generate the plurality of magnetic fields,
the tactile feedback includes feedback of a repulsive force generated according to mutual repulsion of the plurality of magnetic fields generated by the plurality of electromagnetic coils, feedback of an attractive force generated according to mutual attraction of the plurality of magnetic fields generated by the plurality of electromagnetic coils, or feedback of combination of the repulsive force generated according to mutual repulsion of one portion of the plurality of magnetic fields generated by the plurality of electromagnetic coils and the attractive force generated according to mutual attraction of another portion of the plurality of magnetic fields generated by the plurality of electromagnetic coils,
the plurality of electromagnetic coils respectively correspond to different regions of a human body, the tactile feedback is generated by a mutual attraction or a mutual repulsion between the magnetic fields of the electromagnetic coils positioned at the difference regions of the human body,
the electromagnetic coil set comprises a first electromagnetic coil and a sixth electromagnetic coil, a first coil current I 1 and a second coil current I 2 are respectively provided to the first electromagnetic coil and the sixth electromagnetic coil, directions of the first coil current I 1 and the second coil current I 2 are opposite, and when it is viewed towards a first direction, a current direction of the first coil current I 1 is anticlockwise and a current direction of the second coil current I 2 is clockwise, and it is viewed towards a second direction, the current direction of the first coil current I 1 is clockwise and the current direction of the second coil current I 2 is anticlockwise, a magnetic field along the first direction is generated in the first electromagnetic coil, and a magnetic field along the second direction is generated in the sixth electromagnetic coil, and the first direction and the second direction are in parallel to each other and opposite in direction, a north pole N of the magnetic field generated by the first electromagnetic coil and a north pole N of the magnetic field generated by the sixth electromagnetic coil repulse each other, a repulsive force which acts between fingers and a palm is generated by a mutual repulsion of the first electromagnetic coil and the sixth electromagnetic coil, tactile feedback is generated so as to enable the user to generate tactility.

2. The wearable device according to claim 1 , wherein the coil currents of at least two electromagnetic coils in the plurality of electromagnetic coils are different in magnitude and direction; or
the coil currents of the at least two electromagnetic coils are identical in magnitude and different in direction.

3. The wearable device according to claim 2 , wherein the control command includes at least one of a direction and a current value of the coil current, increasing the current values of a portion or all of the coil currents, decreasing the current values of a portion or all of the coil currents, re-providing a portion or all of the coil currents and turning-off a portion or all of the coil currents.

4. The wearable device according to claim 1 , wherein the wearable device is a hand wearable device, the hand wearable device includes a plurality of finger regions corresponding to finger pulps of fingers of a hand and a palm region corresponding to a middle position of a palm of the hand,
the electromagnetic coil set includes a plurality of electromagnetic coils, and the plurality of electromagnetic coils are respectively positioned in at least two of the plurality of finger regions, or the plurality of electromagnetic coils are respectively positioned in at least one of the plurality of finger regions and the palm region.

5. The wearable device according to claim 1 , wherein the control command includes at least one of a direction and a current value of the coil current, increasing the current values of a portion or all of the coil currents, decreasing the current values of a portion or all of the coil currents, re-providing a portion or all of the coil currents and turning-off a portion or all of the coil currents.

6. The wearable device according to claim 1 , further comprising a power supply,
wherein the driving circuit and the control circuit are coupled with the power supply, and the power supply is configured to supply electric energy to the driving circuit and the control circuit.

7. The wearable device according to claim 6 , wherein the power supply includes a flexible battery.

8. The wearable device according to claim 6 , wherein the power supply and the driving circuit are integrated into one whole body.

9. The wearable device according to claim 1 , further comprising a first communication module,
wherein the first communication module is configured to communicate with a command device, receive the control command from the command device and send the control command to the control circuit.

10. An electronic system, comprising a command device and the wearable device according to claim 1 ,
wherein the command device is configured to generate the control command and send the control command to the wearable device.

11. The electronic system according to claim 10 , wherein the command device includes a second communication module, and the second communication module is configured to communicate with the wearable device.

12. The electronic system according to claim 11 , wherein the wearable device includes a first communication module, and the second communication module is configured to communicate with the first communication module.

13. A tactile feedback method applied to the wearable device according to claim 1 , comprising:
receiving the control command; and
generating and outputting a coil current corresponding to the electromagnetic coil set to the electromagnetic coil set according to the control command,
wherein the electromagnetic coil set is configured to generate tactile feedback based on the coil current.

14. A non-transitory storage medium, being used for storing a computer instruction, wherein when the computer instruction is operated by a processor, one or a plurality of steps in the tactile feedback method according to claim 13 are executed.

15. An electronic device, comprising one or a plurality of processors, the processor being configured to operate a computer instruction to execute one or a plurality of steps in the tactile feedback method according to claim 13 .

16. The we

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd
• Beijing Boe Technology Dev Co Ltd

Inventors

• Guo Ziqiang
• Sun Jian
• Liu Xinjian
• Wang Yakun
• Lin Lin
• Tang Zhen
• Lei Yu
• Chu Minglei
• Sun Jiankang
• Miao Jinghua
• Yan Guixin
• Zi Feng

Classifications

• G06F3/014 Primary

  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

• H04W4/80

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• H01F7/081

  Magnetic constructions · CPC title

• H01F7/20 Primary

  without armatures (cores H01F3/00; coils H01F5/00 {; shaping metal by applying magnetic forces B21D26/14; electromagnets specially adapted for NMR applications G01R33/381}) · CPC title