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

• US 6,188,789 B1
• Filed: 01/05/1999
• Issued: 02/13/2001
• Est. Priority Date: 12/05/1996
• Status: Expired due to Term

• Current Assignee: Palmsource Incorporated (Access Company Limited)
• Original Assignee: Palm, Inc. (TCL Technology Group Corp.)
• Inventors: Haitani, Robert Yuji, Marianetti, Ronald II
• Primary Examiner(s): MEHTA, BHAVESH M
• Application Number:
  US09/225,200
• Time in Patent Office: 770 Days
• Field of Search: 382/181, 382/185-189, 382/309-311, 345/156, 345/179, 178/18.01, 178/18.03
• US Class Current: 382/189
• 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 palmtop computer system, said method comprising:

providing a first handwriting input area on a display for accepting strokes that are recognizable as alphabetic characters;

providing a second handwriting input area on the display for accepting strokes that are recognizable as numbers;

accepting a user input stroke on said first handwriting input area or said second handwriting input area;

if the user input is accepted on said first handwriting input area, then translating the user input stroke on said first handwriting input area as an alphabetic character, and displaying the alphabetic character on the display;

if the user input is accepted on said second handwriting input area, then translating the user input stroke on said second handwriting input area as a number, and displaying the number on the display.

2. The method of claim 1 wherein said steps of translating 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 the display.

4. A computer implemented method of inputting information into a palmtop computer system, said method comprising:

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

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

accepting a user input stokes on said fist handwriting input area and said second handwriting input area;

translating user input strokes into said first handwriting input area as characters recognizable from said first character set;

translating user input strokes into said second handwriting input area as characters recognizable from said second character set;

displaying the characters from the fist character set and the characters from the second character set on the display.

5. The method of claim 4 wherein said first character set comprises alphabetic characters.

6. The method of claim 5 wherein said second character set comprises Arabic numerals.

7. The method of claim 4 wherein said steps of translating user input strokes comprise immediately recognizing a character after said user completes at least one stroke that defines a character.

8. A pen-based computer apparatus, said pen-based computer apparatus comprising:

a display screen; and

a digitizer pad positioned relative to the display screen to receive input when a stylus makes contact with the display screen; and

a first handwriting input area, said first handwriting input area provided on a first portion of the display screen and comprising a subarea of said digitizer pad; and

a second handwriting input area, said second handwriting input area provided on a second portion of the display screen and comprising a subarea of said digitizer pad; and

a handwriting interpreter, said handwriting interpreter immediately interpreting strokes written into said first handwriting input area as characters from a first character set and interpreting strokes written into said second handwriting input area as characters from a second character set; and

wherein the display screen displays characters from the first character set and characters from the second set in response to strokes written into the first and second bandwriting areas, the characters from the first set and the second set being interpreted from the handwriting interpreter.

9. The apparatus of claim 8 wherein said first character set comprises alphabetic characters.

10. The apparatus of claim 9 wherein said second character set comprises Arabic numerals.

11. The apparatus of claim 8 wherein said handwriting interpreter comprises an immediate recognition system.

12. A computer implemented method of inputting information into a computer system, comprising:

providing a handwriting input area, the handwriting input area comprising of a left input box and a right input box, the left input box accepting characters from a first character set of a plurality of character sets, the right input box accepting characters from a second character set of the plurality of character sets;

providing a first set of mode boxes, each mode box in the first set indicating a character set of the plurality of character sets to be used in connection with the left input box;

providing a second set of mode boxes, each mode box in the second set indicating a character set of the plurality of character sets to be used in connection with the right input box;

accepting input indicating a first selected mode, the first selected mode indicating a mode box selected from the first set of mode boxes;

accepting input indicating a second selected mode, the second selected mode indicating a mode box selected from the second set of mode boxes;

interpreting a plurality of input strokes into the left input box as characters from the character set indicated by the first selected mode box; and

interpreting a plurality of input strokes into the right input box as characters from the character set indicated by the second selected mode box.

13. The method of claim 12, wherein the right input box accepts only Arabic numerals.

14. The method of claim 12, wherein the left input box accepts alphabetic characters.

15. The method of claim 12, wherein interpreting comprises immediately recognizing the character after the user completes at least one stroke that defines a character.