WEARABLE DEVICE

• US 20170308117A1
• Filed: 10/14/2015
• Published: 10/26/2017
• Est. Priority Date: 10/15/2014
• Status: Active Grant

• Current Assignee: Motionvirtual Inc.
• Original Assignee: Jun H.O. Park
• Inventors: PARK, Jun Ho
• Granted Patent: US 10,474,191 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/163 Wearable computers, e.g. on a belt
• CPC Class Codes: G06F 2203/0331 Finger worn pointing device
• CPC Class Codes: G06F 3/015 Input arrangements based on nervous system activity detection, e.g. brain waves [EEG] detection, electromyograms [EMG] detection, electrodermal response detection
• 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 3/0304 Detection arrangements using opto-electronic means constructional details of pointing devices not related to the detection arrangement using opto-electronic means G06F3/033; optical digitisers G06F3/042
• CPC Class Codes: G06V 40/10 Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
• CPC Class Codes: G06V 40/14 Vascular patterns
• CPC Class Codes: G06V 40/28 Recognition of hand or arm movements, e.g. recognition of deaf sign language static hand signs G06V40/113

Abstract

Disclosed is a wearable device. The wearable device includes an optical signal transmission unit configured to transmit optical signals, an optical signal sensing unit configured to receive reflected optical signals generated upon reflection of the optical signals by an object, a data processing unit configured to process the received reflected optical signals, and a key determination unit configured to sense a user'"'"'s key input motion based on data acquired by processing the reflected optical signals and to generate an input value matching the key input motion.

Claims

1. A wearable device comprising:

an optical signal transmission unit configured to transmit optical signals;

an optical signal sensing unit configured to receive reflected optical signals generated upon reflection of the optical signals by an object;

a data processing unit configured to process the received reflected optical signals; and

a key determination unit configured to sense a user'"'"'s key, input motion based on data acquired by processing the reflected optical signals and to generate an input value matching the key input motion, wherein;

the optical signal transmission unit transmits a first optical signal and a second optical signal having different first and second wavelengths;

the optical signal sensing unit receives a first reflected optical signal caused by the first optical signal and a second reflected optical signal caused by the second optical signal;

the data processing unit generates pattern information regarding blood vessels of the object based on the first reflected optical signal and the second reflected optical signal; and

the key determination unit senses the user'"'"'s key input motion by comparing information regarding blood vessels changed according to the user'"'"'s key input motion with the pattern information.

2. The wearable device according to claim 1, wherein the data processing unit acquires blood vessel data generated by subtracting data, acquired by processing the second reflected optical signal, data, acquired by processing the first reflected optical signal.

3. The wearable device according to claim 2, wherein the data processing unit generates the pattern information regarding blood vessels of the object using the blood vessel data.

4. The wearable device according to claim 1, further comprising:

a depth sensor configured to 3-dimensionally sense the object and to Generate information; and

an image processor configured to generate a 3D model of the object based on the 3D scan information and to add a pattern representing the blood vessels to the 3D model based on the pattern information.

5. The wearable device according to claim 4, wherein the key determination unit senses the user'"'"'s key input motion by comparing the information regarding blood vessels changed according to the user'"'"'s key input motion with the pattern added to the 3D model.

6. The wearable device according to claim 5, wherein the information regarding blood vessels are acquired by sensing the distribution of at least one of color, chroma and brightness due to the blood vessels of the object through the optical signal sensing unit.

7. The wearable device according to claim 1, wherein the key determination unit determines the 3D positions of a first joint connecting the palm of the user'"'"'s hand and a first phalange of a finger and a second joint connecting the first phalange and a second phalange of the finger, and generates the input value based on the 3D positions of the first joint and the second joint.

8. The wearable device according to claim 7, wherein the key determination unit determines the 3D positions of the first joint and the second joint and bending angles of the first joint and the second joint, and calculates the position of the tip of the finger, the key input motion of which is sensed, according to the 3D positions and the angles of the two joints.

9. The wearable device according to claim 1, wherein the optical signal sensing unit respectively senses the first reflected optical signal and the second reflected optical signal by separating a received reflected optical signal according to wavelengths.

10. The wearable device according to claim 1, wherein the optical signal sensing unit respectively senses the first reflected optical signal and the second reflected optical signal separately received according to time domains or frequency domains.

11. A wearable device comprising:

an optical signal transmission unit configured to transmit optical signals;

an optical signal sensing unit configured to receive reflected optical signals generated upon reflection of the optical signals by an object;

a data processing unit configured to process the received reflected optical signals;

a position determination unit configured to measure the distance and angle of the wearable device with the object based on data acquired by processing the reflected optical signals; and

an image output unit configured to output an image to the outside, wherein;

the optical signal transmission unit transmits a first optical signal and a second optical signal having different first and second wavelengths;

the optical signal sensing unit receives a first reflected optical signal caused by the first optical signal and a second reflected optical signal caused by the second optical signal;

the data processing unit generates pattern information regarding blood vessels of the object based on the first reflected optical signal and the second reflected optical signal;

the position determination unit measures the distance and angle of the wearable device with the object by comparing the pattern information with pre-stored blood vessel information; and

the image output unit outputs the image of a fixed size to a fixed position based on the distance and angle.

12. The wearable device according to claim 11, wherein the data processing unit acquires blood vessel data generated by subtracting data, acquired by processing the second reflected optical signal, data, acquired by processing the first reflected optical signal.

13. The wearable device according to claim 12, wherein the data processing unit generates the pattern information regarding blood vessels of the object using the blood vessel data.

14. The wearable device according to claim 11, wherein the optical signal sensing unit respectively senses the first reflected optical signal and the second reflected optical signal by separating a received reflected optical signal according to wavelengths.

15. The wearable device according to claim 11, wherein the optical signal sensing unit respectively senses the first reflected optical signal and the second reflected optical signal separately received according to time domains or frequency domains.