TOUCH SYSTEM

• US 20130038548A1
• Filed: 08/03/2012
• Published: 02/14/2013
• Est. Priority Date: 08/12/2011
• Status: Abandoned Application

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: KITADA, Takashi, MAKI, Tadashi
• Application Number:
  US13/566,151
• Publication Number:
  US 20130038548A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 3/04886 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

Abstract

In a touch table system having a touch table apparatus provided with a touch panel main body in a tabletop and a PC connected to the touch table apparatus, the touch table apparatus has a touch position detector detecting a touch position within a touch detection area. A touch position converter converts a coordinate of a touch position into a coordinate of a screen area of the PC, the touch position being obtained in an operation is set for each user within the touch detection area.

Claims

1. A touch system comprising:

a touch support member apparatus having a touch surface on which a touch operation is performed by a user and on which electrodes are arranged in a grid shape; and

an information processing apparatus connected to the touch support member apparatus,

the touch support member apparatus comprising;

a touch position detector configured to detect a touch position on an operation area of the touch surface based on a change of output signals from the electrodes associated with a change in capacitance in response to the touch operation; and

a touch position converter configured to convert a coordinate of the touch position, in the operation area, obtained by the touch position detector, into a coordinate of a screen area of the information processing apparatus.

2. The touch system according to claim 1, wherein the information processing apparatus comprises an operation area setter setting the operation area.

3. The touch system according to claim 2, wherein the operation area setter sets the operation area for the user based on touch positions obtained by the touch position detector.

4. The touch system according to claim 1, wherein the information processing apparatus comprises a screen operation processor reflecting the touch operation performed in the operation area into the screen area based on the coordinate of the screen area converted by the touch position converter.

5. The touch system according to claim 3, wherein the operation area is rectangular, and two diagonal vertexes of the operation area are designated by touch operations by the user.

6. The touch system according to claim 3, further comprising an area designation tool at least partially comprising a conductive body, wherein

the operation area setter sets the operation area based on a placement position of the area designation tool upon detecting the area designation tool based on a detection result of the touch position detector.

7. The touch system according to claim 6, wherein each side of the area designation tool is extendable and contractable.

8. The touch system according to claim 6, wherein each side of the area designation tool has a telescopic mechanism.

9. The touch system according to claim 6, wherein

the area designation tool is rectangular to define the operation area inside the area designation tool,

two diagonally positioned members of the area designation tool are formed of conductive bodies.

10. The touch system according to claim 1, wherein

the operation area setter sets one of an absolute coordinate mode and a relative coordinate mode for the operation area according to a coordinate mode selection operation by a user, the absolute coordinate mode outputting a coordinate value of a touch position with an absolute coordinate, the relative coordinate mode outputting a coordinate value of a touch position with a relative coordinate, and

the touch position converter outputs a coordinate indicating a touch position relative to an immediately precedingly designated touch position, for the operation area set in the relative coordinate mode.

11. The touch system according to claim 1, wherein the touch position converter comprises an operation area memory that stores information on the operation area set by the operation area setter, and an operation area determinator that determines whether or not the touch position detected by the touch position detector is in the operation area.

12. The touch system according to claim 11, wherein the operation area determinator invalidates the touch position when the operation area determinator determines that the touch position is not in the operation area.

13. The touch system according to claim 1, wherein the touch position converter switches to a two-finger operation mode to output a coordinate value of a touch position with a relative coordinate, based on a relative position of one finger to another finger, when the touch position converter detects that the two fingers touch the touch surface simultaneously.

14. A touch system comprising:

a touch support member apparatus having a touch surface on which touch operations are performed by a plurality of users and on which electrodes are arranged in a grid shape; and

an information processing apparatus connected to the touch support member apparatus,

the touch support member apparatus comprising;

a touch position detector configured to detect touch positions on a plurality of operation areas of the touch surface based on changes of output signals from the electrodes associated with changes in capacitance in response to the touch operations; and

a touch position converter configured to convert coordinates of the touch positions, in the operation areas, obtained by the touch position detector, into coordinates of a screen area of the information processing apparatus, wherein

each of the operation areas comprises a position input device assigned to one of the users.

15. The touch system according to claim 14, each of the plurality of operation areas being configured to input a touch operation over the entire screen area of the information processing apparatus.

16. The touch system according to claim 14, wherein

the operation area setter sets one of an absolute coordinate mode and a relative coordinate mode for each operation area according to a coordinate mode selection operation by a user, the absolute coordinate mode outputting a coordinate value of a touch position with an absolute coordinate, the relative coordinate mode outputting a coordinate value of a touch position with a relative coordinate, and

the touch position converter outputs a coordinate indicating a touch position relative to an immediately precedingly designated touch position, for an operation area set in the relative coordinate mode.

17. The touch system according to claim 16, the touch position converter being configured to convert coordinates of a plurality of touch positions in a plurality of operation areas into coordinates of the screen area of the information processing apparatus, the operation area setter being configured to concurrently set at least one of the plurality of operation areas to the absolute coordinate mode and at least one of the plurality of operation areas to the relative coordinate mode.

18. The touch system according to claim 16, wherein, in the relative coordinate mode, a position input operation comprises moving a second contact member with respect to a fixedly positioned contact member.

19. The touch system according to claim 14, the information processing apparatus comprises a laptop with a display on the touch surface and a projector containing the screen area, each of the plurality of operation areas and the laptop being configured to control the display of the laptop.

20. The touch system according to claim 14, the information processing apparatus comprising a projector, a projector area of the projector being projected onto the touch surface and comprising one of the plurality of operation areas.