WEARABLE DEVICE AND CONTROL METHOD USING GESTURES

• US 20150346834A1
• Filed: 06/02/2015
• Published: 12/03/2015
• Est. Priority Date: 06/02/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: MARTINEZ FERNANDEZ, Raul, LUNA, Alfredo Cerezo, BERTOLI, Debora Gomez, ANDRES, Pablo Abelardo Martinez, FERNANDEZ, Francisco Jose Calvo, HIDALGO, Fernando Fernandez
• Granted Patent: US 10,222,868 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1694 the I/O peripheral being a single or a set of motion sensors for pointer control or gesture input obtained by sensing movements of the portable computer
• CPC Class Codes: G06F 2200/1637 Sensing arrangement for detection of housing movement or orientation, e.g. for controlling scrolling or cursor movement on the display of an handheld computer
• CPC Class Codes: G06F 3/014 Hand-worn input/output arrangements, e.g. data gloves
• 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 3/0487 using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 2201/32 Remote control based on movements, attitude of remote control device

Abstract

A portable device includes: a sensor configured to detect a gesture of a user carrying the portable device; a control unit configured to identify the detected gesture, determine an external device corresponding to the identified gesture based on the identified gesture, and determine an order for controlling the external device; and a communication unit configured to transmit a command signal corresponding to the order to the external device.

Claims

1. A portable device comprising:

a sensor configured to detect a gesture of a user carrying the portable device;

a control unit configured to identify the detected gesture, determine an external device corresponding to the identified gesture based on the identified gesture, and determine an order for controlling the external device; and

a communication unit configured to transmit a command signal corresponding to the order to the external device.

2. The portable device of claim 1, wherein the sensor is an acceleration measurement module configured to measure acceleration, and

acceleration data of the gesture is obtained using the acceleration measurement module, and the gesture is identified using the acceleration data.

3. The portable device of claim 2, wherein the user wears the portable device on his/her arm, and

the control unit performs a rotation correction to separate a rotation of the user'"'"'s arm from a movement of the portable device.

4. The portable device of claim 3, wherein the rotation correction comprises obtaining an initial angle of rotation of the arm on an axis of the portable device and rotating the acceleration data according to the initial angle using a rotation matrix.

5. The portable device of claim 3, wherein the sensor comprises a gyroscope, and

the control unit performs the rotation correction using data obtained from the gyroscope.

6. The portable device of claim 2, wherein the control unit checks validity of the gesture based on one or more of whether the acceleration measurement module is saturated, whether duration of the gesture exceeds a first threshold, and whether the duration of the gesture is shorter than a second threshold.

7. The portable device of claim 1, wherein the portable device itself controls the external device according to the order determined by the control unit.

8. The portable device of claim 1, wherein the portable device is a wearable device.

9. The portable device of claim 2, wherein the control unit standardizes the acceleration data to separate strength of the gesture, and

standardisation of the acceleration data is performed using an average and a standard deviation of the acceleration data while the gesture is being made.

10. The portable device of claim 1, wherein the control unit determines the external device corresponding to the gesture by comparing the identified gesture with previously stored reference data, and selects a first order corresponding to the gesture from a plurality of orders for controlling the external device.

11. The portable device of claim 2, wherein the sensor comprises a magnetometer, and the control unit identifies the gesture based on data obtained using the magnetometer.

12. A method of operating a portable device, the method comprising:

detecting a gesture of a user carrying a portable device;

identifying the detected gesture;

determining an external device corresponding to the identified gesture based on the identified gesture, and an order for controlling the external device; and

transmitting a command signal corresponding to the order to the external device.

13. The method of claim 12, wherein the portable device comprises an acceleration measurement module configured to measure acceleration, and

the identifying of the detected gesture comprises obtaining acceleration data of the gesture from the acceleration measurement module and identifying the gesture using the acceleration data.

14. The method of claim 13, wherein the user wears the portable device on his/her arm, and

the method further comprises performing a rotation correction so as to separate a rotation of the user'"'"'s arm from a movement of the portable device.

15. The method of claim 14, wherein the rotation correction comprises obtaining an initial angle of rotation of the arm on an axis of the portable device and rotating the acceleration data according to the initial angle using a rotation matrix.

16. The method of claim 14, wherein the portable device further comprises a gyroscope, and

the rotation correction is performed using data obtained from the gyroscope.

17. The method of claim 13, wherein the identifying of the detected gesture further comprises checking validity of the gesture based on one or more of whether the acceleration measurement module is saturated, whether duration of the gesture exceeds a first threshold, and whether the duration of the gesture is shorter than a second threshold.

18. The method of claim 12, further comprising controlling the external device using the portable device itself according to the order.

19. The method of claim 13, further comprising standardizing the acceleration data to separate strength of the gesture,

wherein standardisation of the acceleration data is performed using an average and a standard deviation of the acceleration data while the gesture is being made.

20. The method of claim 12, wherein the determining of the external device and the order for controlling the external device comprises comparing the identified gesture with previously stored reference data, determining the external device corresponding to the gesture based on results of the comparison, and selecting a first order corresponding the gesture from a plurality of orders for controlling the external device.