Coordinate Detecting Device and Operation Method Using a Touch Panel

• US 20090102809A1
• Filed: 10/20/2008
• Published: 04/23/2009
• Est. Priority Date: 10/22/2007
• Status: Abandoned Application

• Current Assignee: Panasonic Liquid Crystal Display Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Liquid Crystal Display Company Limited (Panasonic Holdings Corporation)
• Inventors: Furuhashi, Tsutomu, MAMBA, Norio, Kinoshita, Masayoshi, Kumagai, Toshiyuki
• Application Number:
  US12/254,039
• Publication Number:
  US 20090102809A1
• Time in Patent Office: Days
• US Class Current: 345/173
• 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 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

In a touch panel capable of detecting the coordinates of two pressed-down points individually at the same time, the coordinates detected while one point is pressed are stored and, if a second point is subsequently pressed, the stored coordinates of a first point are used to identify the coordinates closer to the stored coordinates as the first point and the coordinates of another detected point as the second point, thereby identifying an order in which the two points are pressed. Thereafter, what mouse operation has been executed at the coordinates of the first point is detected based on a positional relation between the coordinates of the first point and the coordinates of the second point, and a result of the detection is output to an application operable through a graphical user interface.

Claims

1. A coordinate detecting device comprising:

a touch panel capable of detecting coordinates of two or more points where the touch panel is touched by a user;

a coordinate storing section which stores the coordinates detected in the touch panel; and

a coordinate detecting section which, when the coordinates of two or more points are detected in the touch panel, uses the coordinates that have been stored in the coordinate storing section to identify an order in which the detected coordinates of two or more points are pressed, and determines what processing is to be performed on a displayed object according to the coordinates of the first point based on a positional relation of the coordinates of the one of subsequent points with respect to the coordinates of the first point.

2. A coordinate detecting device according to claim 1, wherein the touch panel lengthens an interval of detecting coordinates when touching on the touch panel by the user is not detected for a preset period of time or longer, and shortens the interval of detecting coordinates when the touching on the touch panel by the user is kept detected for a preset period of time or longer.

3. A coordinate detecting device according to claim 2, wherein, when coordinates of a single point are detected in the touch panel, the coordinate detecting section stores the coordinates in the coordinate storing section and outputs the coordinates as a detection result of the coordinate detecting section.

4. A coordinate detecting device according to claim 3, wherein, when coordinates of a second point are detected after the coordinates of the single point are detected in the touch panel, the coordinate detecting section stores, the coordinates detected as the first point based on the coordinates read out from the coordinate storing section, and outputs detection result data that contains the coordinates of two points detected as the first point and the second point and that indicates that the coordinates detected as the first point have been selected at a time when the second point has been touched.

5. A coordinate detecting device according to claim 4,

wherein the coordinate detecting section stores an interval between cessation of detection of the coordinates of the second point after the coordinates of the two points are detected in the touch panel and detection of the coordinates of the second point once again, and

wherein, when the coordinates of the second point are detected in succession within a preset period of time, the coordinate detecting section counts a number of times that the second point is detected and varies processing that is to be performed on the displayed object according to the coordinates detected as the first point depending on the counted number of times.

6. A coordinate detecting device according to claim 3,

wherein, when the coordinates of the second point are detected for the first time after the coordinates of the first point are detected in the touch panel, the coordinate detecting section stores the coordinates detected as the first point based on the coordinates read out from the coordinate storing section, and outputs data that contains the coordinates of two points detected as the first point and the second point and that indicates that the coordinates detected as the first point have been selected at a time when the second point has been touched, and

wherein, when the coordinates of the two points continue to be detected after the data is output, the coordinate detecting section stores the coordinates detected as the first point this time based on the coordinates detected last time as the first point, which has been read out from the coordinate storing section, and keeps outputting data that contains the coordinates of the two points detected as the first point this time and the second point and that indicates that the coordinates detected as the first point this time has been selected.

7. A coordinate detecting device according to claim 3,

wherein, when the coordinates of the second point are detected for the first time after the coordinates of the first point are detected in the touch panel, the coordinate detecting section stores the coordinates detected as the first point based on the coordinates read out from the coordinate storing section,

wherein the coordinate detecting section identifies in which of two screen area segments divided into upper and lower segments or left and right segments, or divided diagonally, the coordinates detected as the second point are located with respect to the coordinates detected as the first point,

wherein, after a location of the coordinates detected as the second point with respect to the first point is identified, the coordinate detecting section selects one of two preset processing options based on which screen area segment the coordinates detected as the second point belong to, and

wherein the coordinate detecting section then outputs data that contains the coordinates of two points detected as the first point and the second point and that indicates that the selected one of the two processing options is to be performed on the displayed object according to the coordinates detected as the first point.

8. A coordinate detecting device according to claim 7,

wherein, when identifying the location of the coordinates detected as the second point with respect to the coordinates detected as the first point, the coordinate detecting section identifies in which of three or more screen area segments the coordinates detected as the second point are located with respect to the coordinates detected as the first point, the three or more screen area segments including the two screen area segments that are divided into upper and lower segments or left and right segments, or divided diagonally, and

wherein, after the location of the coordinates detected as the second point with respect to the first point is identified, the coordinate detecting section selects, based on which screen area segment the coordinates detected as the second point belong to, one of preset processing options provided for a number of the screen area segments, and

wherein the coordinate detecting section then outputs data that contains the coordinates of the two points detected as the first point and the second point and that indicates that the selected one of the preset processing options provided for the number of the screen area segments is to be performed on the displayed object according to the coordinates detected as the first point.

9. An operation method using a touch panel that is capable of detecting coordinates of two or more points where the touch panel is touched by a user, comprising:

a step for storing coordinates detected in the touch panel in a coordinate storing section;

a step for using, when the coordinates of two or more points are detected in the touch panel, the coordinates that have been stored in the coordinate storing section to identify an order in which the detected coordinates of two or more points are pressed; and

a step for determining what processing is to be performed on a displayed object according to the coordinates of the first point based on a positional relation of the coordinates of the one of subsequent points with respect to the coordinates of the first point.