Method for changing display range and electronic device thereof

Patent metadata

Field	Value
Publication number	US-9851898-B2
Application number	US-201715457904-A
Country	US
Kind code	B2
Filing date	Mar 13, 2017
Priority date	Aug 21, 2012
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

Provided are methods for changing a display range in an electronic device having a touchscreen. The method for changing a display range in an electronic device includes: detecting a plurality of touches; determining a plurality of regions in consideration of a plurality of touch points; and changing a display range of at least one region of the plurality of regions in consideration of change in a distance between the plurality of touch points.

First claim

What is claimed is:

1. An electronic device comprising:
a touch screen;
a processor;
a memory; and
an executable program stored in the memory that, when executed by the processor, causes the processor to:
divide an image displayed on the touch screen into a plurality of regions as a function of a touch input on a first point of the touch screen, wherein the plurality of regions comprise a first region and a second region being scrolled independently of each other based on a drag input within the first region and a drag input within the second region;
detect a first touch input on a second point of the first region and a second touch input on a third point of the second region;
detect that the second touch input moves from the third point to a fourth point of the second region while the first touch input is maintained; and
display a third region of another image which is behind the second region of the image.

2. The electronic device of claim 1 , wherein the executable program causes the processor to divide the image by:
determining the first region and the second region on the image based on a reference line extended from the first point.

3. The electronic device of claim 2 , wherein the executable program causes the processor to:
detect that the touch input moves from the first point to a fifth point in the first region;
expand the second region on the touch screen by moving the reference line onto the fifth point; and
display an outer region which had not been displayed on the touch screen to the expanded second region.

4. The electronic device of claim 3 , wherein the executable program causes the processor to expand the second region by:
overlaying the second region on the first region.

5. The electronic device of claim 3 , wherein the executable program causes the processor to expand the second region by:
expanding the second region according to a direction from the first point to the fifth point.

6. The electronic device of claim 3 , wherein the executable program causes the processor to expand the second region by:
expanding the second region by a distance between the first point and the fifth point on the touch screen.

7. The electronic device of claim 6 , wherein a range of the outer region is determined corresponding to the distance.

8. The electronic device of claim 3 , wherein the executable program causes the processor to:
detect that the touch input moves from the fifth point to a sixth point in the second region; and
reduce the expanded second region by moving the reference line onto the sixth point.

9. The electronic device of claim 2 , wherein the executable program causes the processor to determine the first region and the second region by:
detect that the touch input is maintained on the first point for a predetermined time; and
determine the first region and the second region based on the reference line.

10. A method of an electronic device, the method comprising:
detecting a touch input on a first point of a touch screen displaying an image;
dividing the displayed image on the touch screen into a plurality of regions as a function of a touch input location of the touch input, wherein the plurality of regions comprise a first region and a second region being scrolled independently of each other based on a drag input within the first region and a drag input within the second region;
detecting a first touch input on a second point of the first region and a second touch input on a third point of the second region;
detecting that the second touch input moves from the third point to a fourth point of the second region while the first touch input is maintained; and
displaying a third region of another image which is behind the second region of the image.

11. The method of claim 10 , wherein the dividing of the displayed image comprises:
determining the first region and the second region on the image based on a reference line extended from the first point.

12. The method of claim 11 , further comprising:
detecting that the touch input moves from the first point to a fifth point in the first region;
expanding the second region on the touch screen by moving the reference line onto the fifth point; and
displaying an outer region which had not been displayed on the touch screen to the expanded second region.

13. The method of claim 12 , wherein the expanding of the second region comprises one of:
overlaying the second region on the first region; or
expanding the second region according to a direction from the first point to the fifth point.

14. The method of claim 12 , wherein the expanding of the second region comprises:
expanding the second region by a distance between the first point and the fifth point on the touch screen.

15. The method of claim 14 , wherein a range of the outer region is determined corresponding to the distance.

16. The method of claim 12 , further comprising:
detecting that the touch input moves from the fifth point to a sixth point in the second region; and
reducing the expanded second region by moving the reference line onto the sixth point.

17. The method of claim 2 , wherein the determining of the first region and the second region comprises:
detecting that the touch input is maintained on the first point for a predetermined time; and
determining the first region and the second region based on the reference line.

18. A non-transitory computer readable storage media storing at least one instruction, the at least one instruction, when executed on a device, causing at least one processor to:
detect a touch input on a first point of a touch screen displaying an image;
divide the displayed image on the touch screen into a plurality of regions as a function of a touch input location of the touch input, wherein the plurality of regions comprise a first region and a second region being scrolled independently of each other based on a drag input within the first region and a drag input within the second region;
detect a first touch input on a second point of the first region and a second touch input on a third point of the second region;
detect that the second touch input moves from the third point to a fourth point of the second region while the first touch input is maintained; and
display a third region of another image which is behind the second region of the image.

Assignees

• Samsung Electronics Co Ltd
• Samsung Electronics Co Ltd

Inventors

• Lim Yong-Jin
• Kim Byung-Hwan
• Kim Youn-Soo
• Kim Hyung-Jin
• Noh Jeong-Hwan
• Park In-Su
• Cho Jung-Il

Classifications

• G06F3/04845

  for image manipulation, e.g. dragging, rotation, expansion or change of colour · CPC title

• G06F2203/04104

  Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger · CPC title

• G06F3/04886 Primary

  by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus · CPC title

• G06F2203/04803

  Split screen, i.e. subdividing the display area or the window area into separate subareas · CPC title

• G06F2203/04808

  Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen · CPC title