Hand-written character entry apparatus

• US 5,870,492 A
• Filed: 06/04/1992
• Issued: 02/09/1999
• Est. Priority Date: 06/04/1992
• Status: Expired due to Term

• Current Assignee: Wacom Co Limited (Wacom)
• Original Assignee: Wacom Co Limited (Wacom)
• Inventors: Shimizu, Shinji, Kumagishi, Masao
• Primary Examiner(s): Harvey, Minsun Oh
• Application Number:
  US07/894,147
• Time in Patent Office: 2,441 Days
• Field of Search: 382/13, 382/187, 382/188, 382/189
• US Class Current: 382/187
• CPC Class Codes: G06V 10/987 with the intervention of an operator
• CPC Class Codes: G06V 30/32 Digital ink

Abstract

An inscribed character is recognized with a device including a memory for storing signals representing the shapes of plural inscribed characters, a sensor for the shapes of inscribed characters, a comparator for the stored signals and signals from the sensor, and a display. The comparator compares a signal representing the sensed shape of the inscribed character and the stored signals representing the shapes of plural characters likely to be inscribed to derive signals representing plural selected candidate characters similar in shape to the inscribed character. In response to the signals representing plural selected candidate characters similar in shape to the inscribed character the plural candidate characters are displayed on a first region of the display abutting a second region where there is a representation of the inscribed character. One of the displayed plural candidate characters that is the intended character for the inscribed character is selected by an operator pressing a stylus against the intended character. A signal indicative of which of the displayed candidate character is the selected character is derived and causes the selected character to replace the inscribed character.

Claims

1. A hand-written character entry apparatus of a type having an input device for inputting hand-written characters and a display device, wherein a hand-written character pattern inputted by the input device is recognized and a Plurality of candidate characters having configurations similar to that of the recognized character pattern are extracted and standard character patterns corresponding to the candidate characters are displayed for selection on said display device, said hand-written character entry apparatus comprising:

first means for providing, at a position in said display device corresponding to the position where the hand-written character is inputted by said input device, an input character display areas for displaying a first candidate character exhibiting the highest degree of similarity among said candidate characters;

second means for providing, at a position in said display device abutting said input character display area, a candidate character display areas for displaying the plurality of candidate characters;

means for detecting derivation of a signal indicating any portion of said candidate character display area has been inputted through said input device; and

means for replacing said first candidate character with a selected one of the candidate characters displayed at a portion of said candidate character display area appointed by said input device;

a plurality of said input character display areas being provided, and said candidate character display area being provided for each of said input character display area.

2. A hand-written character entry apparatus according to claim 1, wherein a candidate character display area associated with one of said input character display areas is displayed in a window which overlies another input character display area or areas.

3. A hand-written character entry apparatus according to claim 1, wherein said input device and said display device are integrated with each other.

4. A hand-written character entry apparatus according to claim 1, further comprising:

means for appointing, by operation of said input device, at least two successive input character display areas from among a series of input character display areas displaying first candidate characters;

means for conducting kana-kanji conversion of a batch of first candidate characters displayed in said at least two successive input character display areas appointed by the operation of said input device, so as to extract a plurality of candidate kanji characters;

means for enabling a first candidate kanji character in one of said at least two successive input character display areas while enabling said plurality of candidate kanji characters in said candidate character display area including or excluding said first candidate kanji character; and

means for replacing said first candidate kanji character with another candidate kanji character selected through said input device out of said candidate kanji characters displayed in said candidate character display area.

5. The method of claim 4 further comprising responding to the inscribed character to activate the display so a reproduction of the inscribed character and the candidate characters are displayed on the display in the abutting regions.

6. The method of claim 4 wherein the selected one of the displayed plural candidate characters is selected by pressing on a portion of a display where the selected candidate character is displayed.

14. The apparatus of claim 1 wherein the first candidate character is one of the characters displayed in the candidate character display area.

15. The apparatus of claim 1 wherein the first candidate character is not displayed in the candidate character display area.

7. A method of recognizing an inscribed character comprising responding to the inscribed character to select plural candidate characters similar in shape to the inscribed character, displaying the plural candidate characters in a region abutting a region where there is a representation of the inscribed character, selecting one of the displayed plural candidate characters, the selected one of the displayed plural candidate characters being the intended character for the inscribed character, and replacing the inscribed character with the selected one of the displayed plural candidate characters;

further comprising responding to the inscribed character to activate the display so a reproduction of the inscribed character and all of the candidate characters are simultaneously displayed on the display in the abutting regions, the candidate character most similar to the inscribed character being closer to the inscribed character than any of the other candidate characters.

8. The method of claim 7 wherein the device responds to the sensor to display the inscribed character on the second region of the display and replace the inscribed character on the second region of the display with the selected character.

9. The method of claim 8 wherein the selected one of the displayed plural candidate characters is selected by pressing on the display for the candidate characters.

10. The method of claim 9 wherein the signal is derived by pressing on the region of the display where the selected character is displayed.

11. A method of recognizing an inscribed character with a device including a memory for storing signals representing the shapes of plural inscribed characters, a sensor for the shapes of inscribed characters, a comparator for the stored signals and signals from the sensor, and a display, the method comprising:

sensing the shape of the inscribed character with the sensor, comparing in the comparator a signal representing the shape of the inscribed character as sensed by the sensor and the stored signals representing the shapes of plural characters likely to be inscribed to derive signals representing plural selected candidate characters similar in shape to the inscribed character,

responding to the signals representing plural selected candidate characters similar in shape to the inscribed character to display the plural candidate characters on a first region of the display abutting a second region where there is a representation of the inscribed character,

selecting one of the displayed plural candidate characters, the selected one of the displayed plural candidate characters being the intended character for the inscribed character,

deriving a signal indicative of which of the displayed candidate characters is the selected character,

supplying the signal indicative of which of the displayed candidate characters is the selected character to the device to replace the inscribed character with the selected character; and

responding to the inscribed character to activate the display so a reproduction of the inscribed character and all of the candidate characters are simultaneously displayed on the display in the abutting regions, the candidate character most similar to the inscribed character being closer to the inscribed character than any of the other candidate characters.

12. The apparatus of claim 11 wherein the second display region simultaneously displays the candidate characters most similar in shape to the inscribed character.

13. Apparatus for recognizing an inscribed character comprising

a memory storing signals representing the shapes of plural inscribed characters,

a sensor for the shapes of inscribed characters,

a comparator for the stored signals and signals from the sensor,

a display responsive to the sensor for displaying the inscribed character in a first region of the display, the comparator being responsive to the sensor and the memory for (a) selecting plural candidate characters from the memory most similar in shape to the inscribed character, and (b) activating the display to display the plural candidate characters most similar in shape to the inscribed character in a second region of the display abutting the first region, means for deriving a signal indicating which displayed character is most similar in shape to the inscribed character, the means responsive to the signal indicating which displayed character is most similar in shape to the inscribed character for replacing the displayed inscribed character with the selected character;

the second display region simultaneously displays the candidate characters most similar in shape to the inscribed character, the candidate character most similar to the inscribed character being closer to the inscribed character than any of the other candidate characters.