Character input method and apparatus arrangement

• US 6,107,994 A
• Filed: 09/26/1997
• Issued: 08/22/2000
• Est. Priority Date: 12/24/1992
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Harada, Takashi, Matsubayashi, Kazuhiro, Arai, Tsunekazu, Mori, Shigeki, Takasu, Eiji, Sakaguchi, Katsuhiko
• Primary Examiner(s): NGUYEN, CHANH DUY
• Application Number:
  US08/937,421
• Time in Patent Office: 1,061 Days
• Field of Search: 345/173, 345/179, 345/180, 345/182, 345/172, 345/169, 345/156, 345/157, 345/159, 345/358, 345/168, 345/902, 345/901, 178/18, 178/19, 341/22, 341/23
• US Class Current: 345/168
• 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 character input method and apparatus, data can be input by a simple operation using a displayed keyboard. The keyboard is displayed on the picture surface of a display unit, and data is input by designating a key position on the keyboard. The designated key position is detected based on a designated coordinate position on the keyboard. The corresponding operation is identified based on coordinate positions subsequently input on the keyboard, and a specific key code is generated based on the detected key position and the identified operation.

Claims

1. A character input apparatus for a keyboard on which a key picture surface is displayed, said apparatus comprising:

detection means for detecting a designated key position based on input coordinates where a designated character key pattern is depicted on a displayed keyboard;

identification means for recognizing an input pattern which is superimposed on said designated key pattern depicted in the detected key position on said displayed keyboard and for identifying a pattern having a similar shape to said input pattern from among a plurality of predetermined patterns having different shapes, respectively;

code generation means for generating a specific code based on the designated key position detected by said detection means and the input pattern identified by said identification means; and

input means for inputting a pattern constituted by said specific code at a plurality of coordinates corresponding to those input on the display keyboard.

2. A character input apparatus according to claim 1, wherein said identification means identifies a character depicted on the key position detected by said detection means.

3. A character input apparatus according to claim 1, wherein said identification means identifies a continuous designating input operation started from a designated key position detected by said detection means, and identifies a key position where the continuous operation is terminated.

4. A character input apparatus according to claim 1, wherein the key position is designated using a pen input device.

5. A character input apparatus according to claim 1, wherein the key position is designated using a pointing device.

6. A character input apparatus according to claim 1, further comprising storage means for storing display information relating to the displayed keyboard on the display picture surface.

7. A character input apparatus according to claim 1, wherein said detection means detects both a designated key position based on the designated coordinate position and a pattern input at the designated coordinate position.

8. A character input apparatus according to claim 1, wherein said identification means includes a gesture code storage unit for storing characteristic data of a plurality of input patterns.

9. A character input method for a keyboard on which a key picture surface is displayed,

said method comprising the steps of:

detecting a designated key position based on input coordinates where a designated character key pattern is depicted on a displayed keyboard;

recognizing an input pattern which is superimposed on said designated key pattern depicted in the detected key position on said displayed keyboard and identifying a pattern having a similar share to said input pattern from among a plurality of predetermined patterns having different shapes, respectively;

generating a specific code based on the detected designated key position and the identified input pattern; and

inputting a pattern constituted by said specific code at a plurality of coordinates corresponding to those input on the display keyboard.

10. A character input method according to claim 9, wherein said identifying step identifies a character depicted on the detected key position.

11. A character input method according to claim 9, wherein said identifying step identifies a continuous designating input operation started from the detected key position, and identifies a key position where the continuous operation is terminated.

12. A character input method according to claim 9, wherein the key position is designated using data input from a pen input device.

13. A character input method according to claim 9, wherein the key position is designated using data input from a pointing device.

14. A character input method according to claim 9, further comprising the step of providing storage means for storing display information relating to the keyboard, and wherein the keyboard displayed on the display picture surface is displayed according to the stored display information.

15. A character input apparatus, comprising:

coordinate information input means for inputting coordinate information on a keyboard displayed on a picture surface, with the coordinate information being a continuous single input of information including a start position at a first key and an end position at a second key on the displayed keyboard;

storage means for storing key codes together with coordinate information corresponding thereto;

key code determination means for comparing the coordinate information input by said coordinate information input means with the stored coordinate information to identify coordinate information including the input coordinate information and for determining a key code indicated by the input coordinate information; and

character code determination means for determining one character code from the determined two key codes indicated by the start position and end position of a continuous single input.

16. A character input apparatus according to claim 15, wherein said coordinate information input means uses a pen input device.

17. A character input apparatus according to claim 15, wherein said coordinate information input means comprises a pointing device.

18. A character input apparatus according to claim 15, further comprising display means for displaying a character pattern specified by the stored character information corresponding to the coordinate information at a position on said display means specified by coordinate information stored in said storage means.

19. An apparatus according to claim 15, wherein one of said two key codes for determining character code indicates a function and the other indicates a character.

20. A character input apparatus according to claim 15, wherein said coordinate information input means inputs both a designated key position and a start position of the continuous single input of information at the first key.

21. A character input method, comprising the steps of:

inputting coordinate information on a keyboard displayed on a picture surface, the coordinate information being input in a single continuous operation and including a start position at a first key and an end position at a second key on the keyboard;

storing key codes together with coordinate information corresponding thereto;

comparing the coordinate information with the stored coordinate information to identify coordinate information including the input coordinate information and determining a key code indicated by the input coordinate information; and

determining one character code from the determined two key codes indicated by the start position and end position of a continuous single input.

22. A character input method according to claim 21, wherein the coordinate information is input using data input from a pen input device.

23. A character input method according to claim 21, wherein the coordinate information is input using data input from a pointing device.

24. A character input method according to claim 21, wherein a character pattern specified by the stored character information corresponding to the coordinate information is displayed at a position on a display specified by stored coordinate information.

25. A storage medium which contains a program for carrying out a character input method for displaying a keyboard on which a key picture surface is displayed, in which said method comprises the steps of:

detecting a designated key position based on input coordinates where a designated character key pattern is depicted on a displayed keyboard;

recognizing an input pattern which is superimposed on said designated key pattern depicted in the detected key position on said displayed keyboard and identifying a pattern having a similar shape to said input pattern from among a plurality of predetermined patterns having different shapes, respectively;

generating a specific code based on the detected designated key position and the identified input pattern; and

inputting a pattern constituted by said specific code at a plurality of coordinates corresponding to those input on the display keyboard.

26. A storage medium according to claim 25 wherein said identifying step identifies a character depicted on the detected key position.

27. A storage medium according to claim 25 wherein said identifying step identifies a continuous designating output operation started from the detected key position, and identifies a key position where the continuous operation is terminated.

28. A storage medium according to claim 25 wherein the key position is designated using data input from a pen input device.

29. A storage medium according to claim 25 wherein the key position is designated using data input from a pointing device.

30. A storage medium according to claim 25, wherein said storage medium has stored therein display information relating to the keyboard.