CONTROL APPARATUS AND ELECTRONIC DEVICE USING THE SAME

• US 20090267805A1
• Filed: 04/23/2009
• Published: 10/29/2009
• Est. Priority Date: 04/24/2008
• Status: Abandoned Application

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: SIP, KIM-YEUNG, JIN, LEI
• Application Number:
  US12/428,481
• Publication Number:
  US 20090267805A1
• Time in Patent Office: Days
• US Class Current: 341/20
• CPC Class Codes: G06F 3/012 Head tracking input arrangements
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• 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

Abstract

A control apparatus includes a motion sensor, an image acquisition device, a processor and a holding device. The motion sensor senses head movements of an operator and generates sensing signals. The image acquisition device captures images of the eye of the operator. The processor calculates a displacement of the motion sensor according to the sensing signals from the motion sensor, converts the displacement into displacement signals, analyzes the images to determine eyelid movements of the operator, and generates activation commands according to the eyelid movements. The holding device secures the motion sensor and the processor to the head of the operator and positions the image acquisition device in front of the eye of the operator.

Claims

1. A control apparatus comprising:

a motion sensor sensing head movements of an operator and generating sensing signals;

an image acquisition device capturing images of the eye of the operator;

a processor calculating a displacement of the motion sensor according to the sensing signals from the motion sensor, converting the displacement into displacement signals, and analyzing the images to determine eyelid movements of the operator, generating activation commands according to the eyelid movements; and

a holding device securing the motion sensor and the processor to the head of the operator, and positioning the image acquisition device in front of the eye of the operator.

2. The control apparatus of claim 1, wherein the holding device comprises a first member and a second member separated from the first member, the first member is a flexible printed circuit board that is secured to the head of the operator, and the second member is a buckle that is attached to eyeglasses worn by the operator.

3. The control apparatus of claim 1, wherein the holding device is integrated in a single piece and comprises a first member and a second member, the first member is a flexible printed circuit board that is secured to the head of the operator, and the second member is an arm that is fixed to the first member and extends in the front of the eye of the operator.

4. The control apparatus of claim 1, wherein the processor further calculates a number of the eyelid movements within a scheduled time span and generates the activation commands according to the number of the eyelid movements within the scheduled time span.

5. The control apparatus of claim 1, wherein the processor further extracts eye features from each of the images and determines the eyelid movements according to at least one of the eye features.

6. The control apparatus of claim 5, wherein the eye features comprise a position of the eyelid, the iris and the white part of the eye.

7. A control apparatus comprising:

a motion sensor attached to the head of an operator, for sensing head movements of the operator and generating sensing signals;

an image acquisition device attached to the head of the operator and in front of the eye of the operator, for capturing images of the eye of the operator; and

a processor for calculating a displacement of the motion sensor according to the sensing signals from the motion sensor, converting the displacement into displacement signals, analyzing the images to determine eyelid movements of the operator and generating activation commands according to the eyelid movements.

8. The control apparatus of claim 7, further comprising a holding device, wherein the holding device secures the motion sensor and the processor to the head of the operator and positions the image acquisition device in front of the eye of the operator.

9. The control apparatus of claim 8, wherein the holding device comprises a first member and a second member separated from the first member, the first member is a flexible printed circuit board that is secured to the head of the operator, and the second member is a buckle that is attached to eyeglasses worn by the operator.

10. The control apparatus of claim 8, wherein the holding device is integrated in a single piece and comprises a first member and a second member, the first member is a flexible printed circuit board that is secured to the head of the operator, and the second member is an arm that is fixed to the first member and extends to the front of the eye of the operator.

11. The control apparatus of claim 7, wherein the processor further calculates a number of the eyelid movements within a scheduled time span and generates the activation commands according to the number of the eyelid movements within the scheduled time span.

12. The control apparatus of claim 7, wherein the processor further extracts eye features from each of the images and determines the eyelid movements according to at least one of the eye features.

13. The control apparatus of claim 12, wherein the eye features comprise a position of the eyelid, the iris and the white part of the eye.

14. An electronic device comprising a host computer and a control apparatus, the control apparatus comprising:

a motion sensor sensing head movements of an operator and generating sensing signals;

an image acquisition device capturing images of the eye of the operator;

a processor calculating a displacement of the motion sensor according to the sensing signals from the motion sensor, converting the displacement into displacement signals, analyzing the images to determine eyelid movements of the operator and generating activation commands according to the eyelid movements; and

a holding device securing the motion sensor and the processor to the head of the operator and positioning the image acquisition device in front of the eye of the operator.

15. The control apparatus of claim 14, wherein the holding device comprises a first member and a second member separated from the first member, the first member is a flexible printed circuit board that is secured to the head of the operator, and the second member is a buckle that is attached to eyeglasses worn by the operator.

16. The control apparatus of claim 14, wherein the holding device is integrated in a single piece and comprises a first member and a second member, the first member is a flexible printed circuit board that is secured to the head of the operator, and the second member is an arm that is fixed to the first member and extends to the front of the eye of the operator.

17. The electronic device of claim 14, wherein the processor further calculates a number of the eyelid movements within a scheduled time span and generates the activation commands according to the number of the eyelid movements within a scheduled time span.

18. The electronic device of claim 14, wherein the processor further extracts eye features from each of the images and determines the eyelid movements according to at least one of the eye features.

19. The electronic device of claim 18, wherein the eye features comprise a position of the eyelid, the iris and the white part of the eye.