Input device

• US 20060066590A1
• Filed: 09/28/2005
• Published: 03/30/2006
• Est. Priority Date: 09/29/2004
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Mukai, Minoru, Hisano, Katsumi, Ozawa, Masanori, Furukawa, Ryo
• Application Number:
  US11/236,611
• Publication Number:
  US 20060066590A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• 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

An input device includes a display unit indicating an image which represents an input position; a contact position detecting unit detecting a position of an object brought into contact with a contact detecting surface of the display unit; a memory storing data representing a difference between the detected position and a center of the image which represents the input position; and an arithmetic unit calculating an amount for correcting the image which represents the input position on the basis of the data stored by the memory.

Claims

1. An input device comprising:

a display unit indicating an image which represents an input position;

a contact position detecting unit detecting a position of an object brought into contact with a contact detecting surface of the display unit;

a memory storing data representing a difference between the detected position and a center of the image which represents the input position; and

an arithmetic unit calculating an amount for correcting the image which represents the input position on the basis of the data stored by the memory.

2. The input device of claim 1, wherein the contact position detecting unit detects a shape of the object brought into contact with the contact detecting surface, and a display controller is included to indicate on the display unit a profile of the object.

3. The input device of claim 1, wherein the contact position detecting unit detects a shape of the object brought into contact with the contact detecting surface, and a display controller is included to indicate on the display unit a mouse corresponding to the detected profile.

4. The input device of claim 1, wherein the image showing the input position represents a keyboard;

and the arithmetic unit calculates a two-dimensional coordinate conversion T which is used to minimize a total difference between U sets of coordinates of a predetermined character string S containing N characters and entered by a user and C′

sets of the center coordinates of the character string S which are obtained by applying the two-dimensional coordinate conversion T to C sets of the center coordinates of the character string S put using a current keyboard layout, the arithmetic unit determining a new keyboard layout on the basis of the C′

sets of the center coordinates.

5. The input device of claim 1, wherein the image showing the input position represents a keyboard;

the memory stores data representing a difference between the detected position and a center of the keyboard; and

a summing unit is included, and adds up an on the center key hit ratio, or a hit ratio of target keys, on the basis of the data stored in the memory.

6. The input device of claim 1, wherein the image showing the input position represents a keyboard;

the memory stores data concerning the number of operations of a delete key, canceled keys, and keys retyped immediately after the delete key; and

the arithmetic unit changes a keyboard layout or performs fine adjustment of positions, shapes and angles of keys on the basis of the information related to keys.

7. The input device of claim 6, wherein the arithmetic unit performs the fine adjustment at a predetermined timing.

8. The input device of claim 1 further comprising a correcting unit which corrects the indicated position of the image which represents the input position on the basis of a difference between the contact position and a reference position of the image which represents the input position.

9. The input device of claim 1, wherein the memory stores information for identifying the object on the basis of contact state thereof on the contact detecting surface in correspondence with the correction amount, and the arithmetic unit derives the correction amount on the basis of the object identifying information when the object is contacted.

10. The input device of claim 1 further comprising a contact strength detector which includes first and second bases having electrode layers arranged on opposite surfaces thereof and dot spacers having different levels of height, and detects contact strength of the object brought into contact.

11. A microcomputer comprising:

a display unit indicating an image which represents an input position;

a contact position detecting unit detecting a position of an object brought into contact with a contact detecting surface of the display unit;

a memory storing data representing a difference between the detected position and a center of the image which represents the input position; and

an arithmetic unit calculating an amount for correcting the image which represents the input position on the basis of the data stored by the memory;

a contact position detecting unit detecting a position of an object brought into contact with a contact detecting layer provided on a display layer of the display unit; and

a processing unit which performs processing in accordance with the detected contact state of the object and information entered into the input device.

12. A microcomputer comprising:

a memory storing a difference between a contact position of an object onto a contact detecting surface of a display unit indicating an image which represents an input position and a center of the image which represents the input position;

an arithmetic unit calculating a correction amount of the image which represents the input position on the basis of the data stored in the memory; and

a processing unit which performs processing in accordance with the detected contact state of the object.

13. An information processing method comprising:

indicating an image which represents an input position on a display unit;

detecting a contact position of the object in contact with a contact detecting surface of the display unit;

storing a difference between the detected position and a center of then image which represents the input position;

calculating an amount for correcting the image which represents the input position on the basis of the stored data; and

indicating the corrected image on the display unit.

14. The information processing method of claim 13, wherein the image showing the input position represents a keyboard;

and an arithmetic unit calculates a two-dimensional coordinate conversion T which is used to minimize a total difference between U sets of coordinates of a predetermined character string S containing N characters and entered by a user and C′

sets of the center coordinates of the character string S which are obtained by applying the two-dimensional coordinate conversion T to C sets of the center coordinates of the character string S put using a current keyboard layout, the arithmetic unit determining a new keyboard layout on the basis of the C′

sets of the center coordinates.

15. The information processing method of claim 13, wherein the image showing the input position represents a keyboard;

a memory stores data representing a difference between the detected position and a center of the keyboard; and

a summing unit is included, and adds up an on-center key hit ratio, or a hit ratio of target keys, on the basis of the data stored in the memory.

16. The information processing method of claim 13, wherein the image showing the input position represents a keyboard;

a memory stores data concerning the number of operations of a delete key, canceled keys, and keys retyped immediately after the delete key; and

an arithmetic unit changes a keyboard layout or performs fine adjustment of positions, shapes and angles of keys on the basis of the information related to keys.

17. An information processing program enabling an input information processor to:

indicate an image which represents an input position on a display unit;

detect a contact position of an object brought into contact on a contact detecting surface of display unit;

store data concerning a difference between the detected position and a center of the image which represents the input position;

calculate an amount for correcting the image which represents the input position on the basis of the stored data; and

indicate the corrected image which represents the input position.

18. The information processing program of claim 17, wherein the image showing the input position represents a keyboard;

and an arithmetic unit calculates a two-dimensional coordinate conversion T which is used to minimize a total difference between U sets of coordinates of a predetermined character string S containing N characters and entered by a user and C′

sets of the center coordinates of the character string S which are obtained by applying the two-dimensional coordinate conversion T to C sets of the center coordinates of the character string S put using a current keyboard layout, the arithmetic unit determining a new keyboard layout on the basis of the C′

sets of the center coordinates.

19. The information processing program of claim 17, wherein the image showing the input position represent a keyboard;

a memory stores data representing a difference between the detected position and the center of the keyboard; and

a summing unit is included, and adds up an on-the center key hit ratio, or a hit ratio of target keys on the basis of the data stored in the memory.

20. The information processing program of claim 17, wherein the image showing the input position represents a keyboard;

a memory stores data concerning the number of operations of a delete key, canceled keys, and keys retyped immediately after the delete key; and

an arithmetic unit changes a keyboard layout or performs fine adjustment of positions, shapes and angles of keys on the basis of the information related to keys.