Terminal and method for processing multi-point input

• US 9,477,398 B2
• Filed: 09/16/2013
• Issued: 10/25/2016
• Est. Priority Date: 10/05/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ji, Daehyun, Kim, Joonwoo, Baek, Dongcheol, Oh, Taekeun
• Primary Examiner(s): HALEY, JOSEPH R
• Application Number:
  US14/027,454
• Publication Number:
  US 20140098041A1
• Time in Patent Office: 1,135 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04104 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 Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 2203/04808 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 Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A terminal and method for discriminating among multipoint inputs generated in combination of multiple input factors generated by different input devices includes detecting a multipoint input comprising a plurality of input factors provided by a plurality of different input means; extracting coordinates and positions of the input factors based on the input means; and performing a particular operation corresponding to the extracted coordinates.

Claims

1. A method for processing a multipoint input, comprising:

detecting a coordinate generated by a first input device and a plurality of coordinates generated by a second input device;

defining a plurality of screen regions by forming two axes intersecting at the coordinate generated by the first input device, each screen region defined by the two axes and the plurality of screen regions including at least a given region in which inputs are ignored;

excluding, based on being located in the given region from the plurality of screen regions, at least one coordinate of the plurality of coordinates generated by the second input device;

performing an operation based on detected coordinates after the at least one coordinate of the plurality of coordinates generated by the second input device is excluded from the detected coordinates,

determining that the plurality of coordinates are consecutive coordinates designating a touch input area when distances between respective pairs of the plurality of coordinates are less than or equal to a predetermined threshold distance; and

if the touch input area is greater than the predetermined threshold distance, ignoring the plurality of coordinates generated by the second input device.

2. The method of claim 1, wherein the coordinate generated by the first input device and the plurality of coordinates generated by the second input device are based on input events that occur simultaneously or sequentially.

3. The method of claim 1, further comprising selecting the given region as one in which input detected using the second input device is ignored based on a position of the given region relative to the coordinate generated by the first input device.

4. The method of claim 1, wherein defining the plurality of screen regions includes dividing the screen into a set of quadrants.

5. The method of claim 1, wherein the plurality of coordinates generated by the second input device are detected based on interactions between the second input device and a user'"'"'s hand.

6. The method of claim 1, wherein each of the first input device and the second input device includes a different type of touch panel.

7. The method of claim 1, wherein the coordinate generated by the first input device and the plurality of coordinates generated by the second input device are detected based on signals received from the first input device and the second input device.

8. The method of claim 1, wherein the coordinate generated by the first input device is generated based on an interaction between the first input device and a stylus.

9. The method of claim 1, wherein the operation comprises at least one of zoom-in, zoom-out, drag, copy, shortcut icon presentation, menu presentation, pen/eraser switching, and program execution operations.

10. A terminal comprising:

a first input device and a second input device; and

a controller configured to;

detect a coordinate generated by the first input device and a plurality of coordinates generated by the second input device;

define, in a screen, a plurality of screen regions by forming two axes intersecting at the coordinate generated by the first input device, each screen region defined by the two axes and the plurality of screen regions further including at least a given region in which inputs are ignored;

exclude, based on being located in a given region from the plurality of screen regions, at least one coordinate of the plurality of coordinates generated by the second input device;

perform an operation based on detected coordinates after the at least one coordinate of the plurality of coordinates generated by the second input device is excluded from the detected coordinates,

determine that the plurality of coordinates are consecutive coordinates designating a touch input area when distances between respective pairs of the plurality of coordinates are less than or equal to a predetermined threshold distance; and

if the touch input area is greater than the predetermined threshold distance, ignore the plurality of coordinates generated by the second input device.

11. The terminal of claim 10, wherein the coordinate generated by the first input device and the plurality of coordinates generated by the second input device are based on input events that occur simultaneously or subsequently.

12. The terminal of claim 10, wherein the each of the first input device and the second input device includes a different type of touch panel.

13. The terminal of claim 12, wherein the coordinate generated by the first input device and the plurality of coordinates generated by the second input device are detected based on signals received from the first input device and the second input device.

14. The terminal of claim 12, wherein the coordinate generated by the first input device is generated based on an interaction between the first input device and a stylus.

15. The terminal of claim 10, wherein the operation comprises at least one of zoom-in, zoom-out, drag, copy, shortcut icon presentation, menu presentation, pen/eraser switching, and program execution operations.

16. The terminal of claim 10, wherein the plurality of coordinates generated by the second input device are detected based on interactions between the second input device and a user'"'"'s hand.

17. The terminal of claim 10, wherein the controller is further configured to select the given region as one in which input detected using the second input device is ignored based on a position of the given region relative to the coordinate generated by the first input device.

18. The terminal of claim 10, wherein defining the plurality of screen regions includes dividing the screen into a set of quadrants.