Method and apparatus for immediate response handwriting recognition system that handles multiple character sets

• US 5,889,888 A
• Filed: 12/05/1996
• Issued: 03/30/1999
• Est. Priority Date: 12/05/1996
• Status: Expired due to Term

• Current Assignee: Access Company Limited
• Original Assignee: 3Com Corporation (HP Inc.)
• Inventors: Haitani, Robert Yuji, Marianetti, Ronald II
• Primary Examiner(s): Boudreau, Leo H.
• Assistant Examiner(s): MEHTA, BHAVESH M
• Application Number:
  US08/760,709
• Time in Patent Office: 845 Days
• Field of Search: 382/187, 382/185, 382/313, 382/315, 382/186, 382/189, 345/179, 345/156, 178/18.01, 178/18.03
• US Class Current: 382/187
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06V 30/10 Character recognition
• CPC Class Codes: G06V 30/1423 the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32
• CPC Class Codes: G06V 30/1444 Selective acquisition, locating or processing of specific regions, e.g. highlighted text, fiducial marks or predetermined fields
• CPC Class Codes: G06V 30/373 using a special pattern or subpattern alphabet

Abstract

To efficiently recognize characters from several character sets, a palmtop computer system is disclosed wherein more that one character input area is displayed. Each character input area is designed to recognize strokes that represent characters from a different character set. In one embodiment, the palmtop computer system has an alphabetic input area and a numeral input area. In such an embodiment, strokes entered in the alphabetic input area are interpreted as alphabetic characters and strokes entered in the numeral input area are interpreted as numerals.

Claims

1. A computer implemented method of inputting information into a computer system, said method comprising the steps of:

providing a first handwriting input area for accepting alphabetic letter strokes;

providing a second handwriting input area for accepting number strokes;

accepting user input strokes into said first handwriting input area and said second handwriting input area;

interpreting user input strokes into said first handwriting input area as alphabetic characters but not numbers; and

interpreting user input strokes into said second handwriting input area as numbers but not alphabetic characters.

2. The method of claim 1 wherein said steps of interpreting user input strokes comprise immediately recognizing a character after said user completes at least one stroke that defines a character.

3. The method of claim 1 wherein said steps of providing said first and said second handwriting input area comprise labeling a defined area on a digitizer pad.

4. The method of claim 1 further comprising the step of:

displaying a interpreted input stroke as a character onto a display.

5. A computer implemented method of inputting information into a computer system, said method comprising the steps of:

providing a first handwriting input area for accepting a first set of strokes for a first character set;

providing a second handwriting input area for accepting a second set of strokes for a second character set;

accepting user input strokes into said first handwriting input area and said second handwriting input area;

interpreting user input strokes into said first handwriting input area as characters from said first character set but not said second character set; and

interpreting user input strokes into said second handwriting input area as characters from said second character set but not said first character set.

6. The method of claim 5 wherein said first character set comprises alphabetic characters.

7. The method of claim 6 wherein said second character set comprises Arabic numerals.

8. The method of claim 5 wherein said steps of interpreting user input strokes comprise immediately recognizing a character after said user completes at least one stroke that defines a character.

9. A pen-based computer apparatus, said pen-based computer apparatus comprising the elements of:

a display screen; and

a digitizer pad; and

a first handwriting input area, said first handwriting input area comprising a first subarea of said digitizer pad; and

a second handwriting input area, said second handwriting input area comprising a second subarea of said digitizer pad; and

a handwriting interpreter, said handwriting interpreter interpreting strokes written into said first handwriting input area as characters from a first character set but not said second character set and interpreting strokes written into said second handwriting input area as characters from a second character set but not said first character set.

10. The apparatus of claim 9 wherein said first character set comprises alphabetic characters.

11. The apparatus of claim 10 wherein said second character set comprises Arabic numerals.

12. The apparatus of claim 9 wherein said handwriting interpreter comprises an immediate recognition system.

13. The apparatus of claim 9 wherein a translated input stroke is displayed as a character onto said display.