User interface device using transmission and reception of ultrasonic signals

Patent metadata

Field	Value
Publication number	US-10372230-B2
Application number	US-201715798241-A
Country	US
Kind code	B2
Filing date	Oct 30, 2017
Priority date	Oct 31, 2016
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

Disclosed is a user interface device that interacts with a computer or a TV that realizes an electronic device, the user interface device including a motion recognition module configured to recognize a motion of a user by using transmission and reception of an ultrasonic signal; and a battery configured to supply electric power to the motion recognition module.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A user interface device that interacts with a computer or a TV that realizes an electronic device, the user interface device comprising:
a motion recognition module configured to recognize a motion of a user by using transmission and reception of an ultrasonic signal; and
a battery configured to supply electric power to the motion recognition module,
wherein the motion recognition module determines whether the ultrasonic signal reflected by a hand of the user and received is a preset reference value or higher, and sets the user interface device to any one of a general user interface mode or a motion recognition mode based on the determination result,
wherein the motion recognition module transmits the ultrasonic signal to a space in which a hand of the user is located, and extracts a motion of the hand of the user based on the ultrasonic signal reflected by the hand of the user and received, and
wherein the motion recognition module extracts the motion of the hand of the user, based on a shape of a widened V surface, of the shape of the hand of the user who uses the user interface device, between an index finger and a middle finger.

2. The user interface device of claim 1 , wherein the motion recognition module includes:
a plurality of micro-machined transducers disposed in a 2D array form to allow 3D beam condensation and configured to transmit and receive the ultrasonic signal.

3. The user interface device of claim 2 , wherein the plurality of micro-machined transducers are piezoelectric micro-machined transducers of high sensitivity, which are realized by using sol-gel piezoelectric bodies.

4. The user interface device of claim 2 , wherein an impedance matching unit having an impedance that is lower than those of the plurality of micro-machined transducers is disposed at an upper end of the motion recognition module.

5. The user interface device of claim 4 , wherein the impedance matching unit is formed of a PDMS or a rubber material at an upper end of the motion recognition module or is formed of a hole at an upper end of the motion recognition module.

6. The user interface device of claim 1 , wherein when the received ultrasonic signal is at the preset reference value or lower, the motion recognition module performs an operation of recognizing a motion of the user by setting the user interface device to the motion recognition mode.

7. The user interface device of claim 1 , wherein the motion recognition module performs a user interface function corresponding to the extracted motion of the hand of the user.

8. The user interface device of claim 1 , wherein the motion recognition module is provided on one side of the user interface device, based on a location of the hand of the user who uses the user interface device.

9. The user interface device of claim 2 , wherein the motion recognition module includes:
a pulser/receiver configured to process the ultrasonic signal;
a beam former configured to perform beam forming on the ultrasonic signal; and
an analog-digital converter configured to convert the ultrasonic signal.

10. A mouse device that interacts with a computer or a TV that realizes an electronic device, the mouse device comprising:
a motion recognition module configured to recognize a motion of a user by using transmission and reception of an ultrasonic signal; and
a battery configured to supply electric power to the motion recognition module,
wherein the motion recognition module is configured to:
determine whether the ultrasonic signal reflected by a hand of the user and received is a preset reference value or higher, and sets the mouse device to any one of a general mouse mode or a motion recognition mode based on the determination result,
transmit the ultrasonic signal to a space in which a hand of the user is located, and
extract a motion of the hand of the user based on the ultrasonic signal reflected by the hand of the user and received, and

wherein the motion recognition module extracts the motion of the hand of the user, based on a shape of a widened V surface, of the shape of the hand of the user who uses the user interface device, between an index finger and a middle finger.

11. The mouse device of claim 10 , wherein the motion recognition module includes:
a plurality of micro-machined transducers disposed in a 2D array form to allow 3D beam condensation and configured to transmit and receive the ultrasonic signal.

12. The mouse device of claim 10 , wherein an impedance matching unit has an impedance that is lower than those of the plurality of micro-machined transducers is disposed at an upper end of the motion recognition module.

13. The mouse device of claim 10 , wherein when the received ultrasonic signal is at the preset reference value or lower, the motion recognition module performs an operation of recognizing a motion of the user by setting the mouse device to the motion recognition mode.

Assignees

• Ct Integrated Smart Sensors Found

Inventors

• Cho Kyung Il

Classifications

• G06F3/03543

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

• G06F3/017 Primary

  Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883) · CPC title

• G06F3/0383

  Signal control means within the pointing device · CPC title

• G06F3/038

  Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry · CPC title