METHOD AND ELECTRONIC DEVICE FOR HAPTIC/TACTILE FEEDBACK

• US 20130088438A1
• Filed: 03/06/2012
• Published: 04/11/2013
• Est. Priority Date: 10/05/2011
• Status: Abandoned Application

• Current Assignee: Quanta Computer
• Original Assignee: Quanta Computer
• Inventors: Shih, Yu-Liang, Chang, Jung-Wen, Hsu, Ya-Chun, Huang, Yi-Pin
• Application Number:
  US13/412,671
• Publication Number:
  US 20130088438A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/016 Input arrangements with force or tactile feedback as computer generated output to the user
• CPC Class Codes: G06F 3/0483 Interaction with page-structured environments, e.g. book metaphor
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A method and an electronic device for tactile feedback are provided. The method includes: controlling a display panel to display an electronic book; controlling a haptic/tactile actuator to generate haptic/tactile feedback to express a texture of paper of the electronic book; detecting a drag input on a touch panel when the electronic book is displayed, the drag input including a plurality of touch points for page flipping of the electronic book; and controlling the haptic/tactile actuator to adjust the strength of the haptic/tactile feedback to express page flipping of the electronic book.

Claims

1. A method for haptic/tactile feedback, comprising:

controlling a display panel to display an electronic book;

controlling a haptic/tactile actuator to generate haptic/tactile feedback to express a texture of paper of the electronic book;

detecting a drag input on a touch panel when the electronic book is displayed, the drag input comprising a plurality of touch points for page flipping of the electronic book; and

controlling the haptic/tactile actuator to adjust a strength of the haptic/tactile feedback to express page flipping of the electronic book in response to positions of the touch points.

2. The method according to claim 1, wherein the step of adjusting the strength of haptic/tactile feedback includes:

controlling the haptic/tactile actuator to reduce the strength of haptic/tactile feedback in response to a touch point falling within a first region of the electronic book.

3. The method according to claim 2, wherein the step of adjusting the strength of haptic/tactile feedback, after the step of reducing the strength of haptic/tactile feedback, further includes:

controlling the haptic/tactile actuator to stop reducing the strength of haptic/tactile feedback in response to a touch point falling within a second region of the electronic book.

4. The method according to claim 3, wherein the step of adjusting the strength of haptic/tactile feedback, after the step of stop reducing the strength of haptic/tactile feedback, further includes:

controlling the haptic/tactile actuator to increase the strength of haptic/tactile feedback in response to a touch point falling within a third region of the electronic book.

5. The method according to claim 1, wherein the strength of haptic/tactile feedback generated by the haptic/tactile actuator changes with a drag speed of the drag input.

6. The method according to claim 5, wherein the strength of haptic/tactile feedback generated by the haptic/tactile actuator increases as the drag speed of the drag input increases.

7. The method according to claim 1, further comprising:

calculating a contact area resulted from a touch point of the drag input on the touch panel;

calculating an overlap ratio of the contact area relative to a predetermined range near a side of the electronic book on the display panel; and

determining the drag input is for page flipping of the electronic book when the contact area is larger than a threshold and the overlap ratio is greater than a predetermined ratio.

8. The method according to claim 1, wherein the haptic/tactile feedback generated by the haptic/tactile actuator is based on a function:

Z=((Zmax*Pr/100)+Zf*S);

where Z represent the strength of haptic/tactile feedback, Zmax represents a maximum strength of haptic/tactile feedback, Pr represents the texture of paper of the electronic book, Zf represents the strength of haptic/tactile feedback determined by the positions of the touch points, and S represents a drag speed of the drag input.

9. An electronic device for haptic/tactile feedback, comprising:

a processing module;

a display panel, coupled to the processing module;

a touch panel, coupled to the processing module, and coupled to the display panel to form a touch display; and

a haptic/tactile actuator, coupled to the processing module;

wherein, the processing module controls the display panel to display an electronic book;

controls the haptic/tactile actuator to generate haptic/tactile feedback to express a texture of paper of the electronic book;

detects a drag input on the touch panel when the electronic book is displayed, the drag input comprising a plurality of touch points for page flipping of the electronic book; and

controls the haptic/tactile actuator to adjust the strength of haptic/tactile feedback to express page flipping of the electronic book in response to positions of the touch points.

10. The electronic device according to claim 9, wherein the processing module controls the haptic/tactile actuator to reduce the strength of haptic/tactile feedback in response to a touch point falling within a first region of the electronic book.

11. The electronic device according to claim 10, wherein the processing module controls the haptic/tactile actuator to stop reducing the strength of haptic/tactile feedback in response to a touch point falling within a second region of the electronic book.

12. The electronic device according to claim 11, wherein the processing module controls the haptic/tactile actuator to increase the strength of haptic/tactile feedback in response to a touch point falling within a third region of the electronic book.

13. The electronic device according to claim 9, wherein the strength of haptic/tactile feedback generated by the haptic/tactile actuator changes with a drag speed of the drag input.

14. The electronic device according to claim 13, wherein the strength of haptic/tactile feedback generated by the haptic/tactile actuator increases as the drag speed of the drag input increases.

15. The electronic device according to claim 9, wherein the processing module calculates a contact area resulted from a touch point of the drag input on the touch panel, calculates an overlap ratio of the contact area relative to a predetermined range near a side of the electronic book on the display panel, and determines that the drag input is for page flipping of the electronic book when the contact area is larger than a threshold and the overlap ratio is greater than a predetermined ratio.

16. The electronic device according to claim 9, wherein the haptic/tactile feedback generated by the haptic/tactile actuator is based on a function:

Z=((Zmax*Pr/100)+Zf*S);

where Z represent the strength of haptic/tactile feedback, Zmax represents a maximum strength of haptic/tactile feedback, Pr represents the texture of paper of the electronic book, Zf represents the strength of haptic/tactile feedback determined by the positions of the touch points, and S represents a drag speed of the drag input.