Boxed input correction system and method for pen based computer systems

• US 5,682,439 A
• Filed: 08/07/1995
• Issued: 10/28/1997
• Est. Priority Date: 08/07/1995
• Status: Expired due to Term

• Current Assignee: Apple Inc.
• Original Assignee: Apple Computer Incorporated (Apple Inc.)
• Inventors: Capps, Stephen P., Beernink, Ernest H.
• Primary Examiner(s): Boudreau, Leo
• Assistant Examiner(s): Patel, Jayanti K.
• Application Number:
  US08/512,209
• Time in Patent Office: 813 Days
• Field of Search: 382/187, 382/188, 382/189, 382/231, 382/229, 382/310, 382/311, 395/155, 395/157, 395/792, 395/795, 395/804
• US Class Current: 382/187
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

According to the present invention, a variety of correction methods and systems are disclosed. A first method aspect of the present invention teaches a computer implemented correction method for correcting words and characters entered into a pointer based computer system. The correction method includes the step of receiving a selected word including at least one character, displaying the selected word within a boxed input corrector implemented on the pointer based computer system; receiving a correction input and performing an action indicated by the correction input. The action is determined by a type of the correction input, the types of correction inputs including character editing input, gesture input, navigation input, and external input generated by events external to the boxed input corrector. One embodiment of the present invention teaches a boxed input correction system comprising a pen-based computer system including a central processing unit, memory accessible by the central processing unit, and a dual-function display system having a display screen. The boxed input correction system also includes a boxed input corrector which receives and displays a selected word, receives a correction input indicating an action to be performed on the selected word, and performs the action. When the selected word is an ink word, the boxed input corrector displays the ink word centered within a single box and, when the selected word is a string of one or more well defined characters, the boxed input corrector displays the selected word such that each well defined character has a box associated therewith.

Claims

1. A computer implemented correction method for correcting words and characters entered into a pointer based computer system that includes a display screen for displaying a note area and a boxed input corrector, the correction method comprising the computer controlled steps of:

providing an electronic document capable of maintaining ink words and recognized words;

receiving a selected word from the electronic document including at least one character;

displaying the selected word within said boxed input corrector displayed on said display screen of the pointer based computer system, wherein when the selected word is an ink word, the ink word is displayed centered in said boxed input corrector within a single box, and, when the selected word is a string of one or more well defined characters, the selected word is arranged within the boxed input corrector such that each well defined character has a box associated therewith and when a given character of the selected word is displayed the given character is displayed within its associated box;

receiving a correction input; and

performing an action indicated by the correction input wherein the action performed is determined by a type of the correction input, the types of correction inputs including character editing input, gesture input, navigation input, and external input generated by events external to the boxed input corrector,

wherein types or navigation input include left and right direction commands, and when a left direction command is input, a left most character of the selected word displayed in the note area of the display is visible in the boxed input corrector part of display, and the selected word in the note area has an adjacent word located to the selected word'"'"'s left, the step of performing the action includes the steps of receiving the adjacent word in the boxed input corrector for correction and changing the selected word in the note area to the adjacent word.

2. A computer implemented method as recited in claim 1 wherein when the selected word is the string of one or more well defined characters, an input field from which the selected word originated does not define a fixed format, and the selected word fits within a number of boxes which may simultaneously be displayed in the boxed input corrector, then the step of displaying the selected word includes displaying the selected word displayed in the note area centered within the boxed input corrector such that each character of the selected word displayed in the note area is visible in the boxed input corrector.

3. A computer implemented method as recited in claim 2 wherein when the selected word is the string of one or more well defined characters, the step of displaying the selected word further includes the steps of:

creating an empty alternates list for each box having an associated well defined character; and

seeding each alternates list with both an upper case representation and a lower case representation of its associated well defined character.

4. A computer implemented method as recited in claim 1 wherein when the selected word is the string of one or more well defined characters, an input field from which the selected word originated does not define a fixed format, and the selected word does not fit within a number of boxes which may simultaneously be displayed in the boxed input corrector, then the step of displaying the selected word is performed such that a left most character of the selected word displayed in the note area is displayed in a left most box of the boxed input corrector.

5. A computer implemented method as recited in claim 1 wherein when the selected word is the string of one or more well defined characters, the step of displaying the selected word includes the steps of:

creating an empty alternates list for each box having an associated well defined character; and

seeding each alternates list with both an upper case representation and a lower case representation of its associated well defined character.

6. A computer implemented method as recited in claim 1 wherein when the selected word is the string of one or more well defined characters and an input field from which the selected word originated defines a fixed format, the step of displaying the selected word includes the steps of:

displaying boxes according to the fixed format and centered within the boxed input corrector;

displaying the well defined characters of the selected word displayed in the note area appropriately within their associated boxes according to the fixed format; and

providing a visual indication of which boxes contain modifiable characters.

7. A computer implemented method as recited in claim 1 wherein the fixed format is selected from the group of fixed formats including time format, date format, telephone number format, social security number format, and currency format.

8. A computer implemented method as recited in claim 1 wherein when the selected word is the string of one or more well defined characters and the correction input is a character editing input overwriting a given box, the step of performing the indicated action includes the steps of:

receiving a ranked character list of one or more well defined characters corresponding to possible characters which the character editing input may represent;

reordering the ranked character list based on a format of the boxed input corrector and a guess list of characters which the box input corrector has previously suggested for the given box;

removing any characters from the ranked character list which are not suitable for the given box; and

replacing a current character associated with the given box with a highest ranked character found in the ranked character list.

9. A computer implemented method as recited in claim 8 wherein when the given box is a right most visible box, the step of performing the indicated action further includes the step of shifting the boxes such that a next suitable string of characters will display in the boxed input corrector properly.

10. A computer implemented method as recited in claim 1 wherein when the correction input is a scrub gesture input and the selected word is the ink word, the step of performing the action includes the step of deleting the ink word.

11. A computer implemented method as recited in claim 1 wherein when the correction input is a scrub gesture input and the selected word is the string of one or more well defined characters, the step of performing the action includes the steps of:

determining a bounds of the scrub gesture input;

determining the boxes which the bounds of the scrub gesture input overlap;

selecting each character which is fully covered by the bounds of the scrub gesture input; and

when the bounds of the scrub gesture input do not fully cover at least one character, determining if the scrub gesture input is a single character scrub gesture, and, if so, selecting a single character which the bounds of the scrub gesture input overlap.

12. A computer implemented method as recited in claim 11 wherein when the selected word is displayed in a fixed format in the note area, the step of performing the action further includes the step of clearing each box associated with a selected character.

13. A computer implemented method as recited in claim 11 wherein when the selected word is not displayed in a fixed format in the note area and the selected characters are either (a) only spaces before the selected word or (b) only spaces after the selected word, the step of performing the action further includes the step of deleting the spaces such that the selected word is joined to an appropriate adjacent word.

14. A computer implemented method as recited in claim 11 wherein when the selected word is not displayed in a fixed format in the note area and the selected characters arc neither (a) only spaces before the selected word nor (b) only spaces after the selected word, the step of performing the action further includes the step of deleting the selected characters.

15. A computer implemented method as recited in claim 1 wherein when the correction input is an insert gesture input and the selected word is the ink word, the step of performing the action includes the steps of:

forming two new ink words by splitting the ink word at an input position of the insert gesture input; and

setting the selected word to a one of the two new ink words.

16. A computer implemented method as recited in claim 1 wherein when the correction input is an insert gesture input, the selected word is the string of one or more well defined characters, and the selected word is not displayed in a fixed format in the note area, the step of performing the action includes the step of adding a space character at an input position of the insert gesture input.

17. A computer implemented method as recited in claim 1 wherein when the correction input is an insert gesture input, the selected word is the string of one or more well defined characters, and the selected word is displayed in a fixed format in the note area, the step of performing the action includes the step of ignoring the insert gesture.

18. A computer implemented method as recited in claim 1 wherein when the correction input is a tap gesture input selecting a box from within the boxed input corrector, the step of performing the action includes the step of creating an empty pop-up menu list for use in storing correction actions which may be performed on the selected word in the note area and the selected character in the boxed input corrector.

19. A computer implemented method as recited in claim 18 wherein when the correction input is the tap gesture input and the selected word is the ink word, the step of performing the action further includes the steps of:

adding a recognize command and a delete command to the pop-up menu list;

when a second word adjacent to the selected word is also an adjacent ink word, adding a corresponding join word command to the pop-up menu list;

displaying a pop-up menu having the commands in the pop-up menu list as commands available for selection; and

receiving a command selection chosen from the pop-up menu.

20. A computer implemented method as recited in claim 1 wherein when the correction input is a tap gesture input and the selected word is the string of one or more well defined characters, the step of performing the action includes the steps of:

when the selected box contains a character, adding an alternate characters list as items in the pop-up menu list;

when the selected box contains a space character, adding appropriate punctuation characters to the pop-up menu list;

when the selected word has a fixed format, adding a "clear character" command to the pop-up menu list;

when the selected word does not have a fixed format, adding both a "delete character" and an "add word" command to the pop-up menu list;

when the selected box contains a space character located at an end of the selected word, adding an "add word" command to the pop-up menu list;

displaying a pop-up menu having the commands in the pop-up menu list as commands available for selection; and

receiving a command selection chosen from the pop-up menu.

21. A computer implemented method as recited in claim 1 wherein when the requested navigation direction is left and a left most character of the selected word in the note area is not visible in the boxed input corrector, the step of performing the action further includes the step of scrolling a meaningful string of characters.

22. A computer implemented method as recited in claim 1 wherein when the requested navigation direction is right, a right most character of the selected word displayed in the note area of the display is visible in the boxed input corrector part of the display, and the selected word in the note area has an adjacent word located to the selected word'"'"'s right, the step of performing the action further includes the steps of receiving the adjacent word located to the selected word'"'"'s right in the boxed input corrector for correction and changing the selected word in the note area to the adjacent word located to the selected word'"'"'s right.

23. A computer readable medium storing a computer program for correcting words and characters entered via a pointer based computer system that includes a display screen for displaying a note area and a boxed input corrector into an electronic document capable of maintaining ink words and recognized words, the computer program comprising the programming instructions for:

receiving a selected word from the electronic document including at least one character;

displaying the selected word within said boxed input corrector displayed on said display screen of the pointer based computer system, wherein when the selected word is an ink word, the ink word is displayed centered in said boxed input corrector within a single box, and, when the selected word is a string of one or more well defined characters, the selected word is arranged within the boxed input corrector such that each well defined character has a box associated therewith and when a given character of the selected word is displayed the given character is displayed within its associated box;

receiving a correction input; and

performing an action indicated by the correction input wherein the action performed is determined by a type of the correction input, the types of correction inputs including character editing input, gesture input, navigation input, and external input generated by events external to the boxed input corrector,

wherein types of navigation input include left and right direction commands, and when a left direction command is input, a left most character of the selected word displayed in the note area of the display is visible in the boxed input corrector part of display, and the selected word in the note area has an adjacent word located to the selected word'"'"'s left, the step of performing the action includes the steps of receiving the adjacent word in the boxed input corrector for correction and changing the selected word in the note area to the adjacent word.

24. A boxed input correction system for navigating and correcting an electronic document capable of maintaining both ink words and recognized words, the boxed input correction system comprising:

a pen-based computer system including a central processing unit, memory accessible by the central processing unit, and a dual-function display system having a display screen for displaying a note area and a boxed input corrector; and

a boxed input corrector implemented on the pen-based computer system which receives and displays a selected word from the electronic document, receives a correction input indicating an action to be performed on the selected word, and performs the action, the correction input including navigation type left and right direction commands, and when the correction input is a left direction command, a left most character of the selected word displayed in the note area of the display is displayed in the boxed input corrector part of the display, and an adjacent word located to the left of the selected word on the note area exists, the performed action includes the steps of receiving the adjacent word in the boxed input corrector for correction and changing the selected word in the note area to the adjacent word,

wherein when the selected word is an ink word, the boxed input corrector displays the ink word centered within a single box and, when the selected word is a string of one or more well defined characters, the boxed input corrector displays the selected word such that each well defined character has a box associated therewith and when a given character of the selected word is displayed the given character is displayed within its associated box.

25. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the selected word is the string of one or more well defined characters, an input field from which the selected word originated does not define a fixed format, and the selected word fits within a number of boxes which may simultaneously be displayed on the display screen, the selected word in the note area is displayed centered within the boxed input corrector such that each character of the selected word in the note area is visible in the boxed input corrector.

26. A boxed input correction system as recited in claim 25 wherein the boxed input corrector is further operative to create an alternates list for each box having an associated character, the alternates list having an upper case representation and a lower case representation of its associated well defined character.

27. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the selected word is the string of one or more well defined characters, an input field from which the selected word originated does not define a fixed format, and the selected word does not fit within a number of boxes which may simultaneously be displayed on the display screen, the selected word in the note area is displayed within the boxed input corrector such that a left most character of the selected word in the note area is displayed in a left most box of the boxed input corrector.

28. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the selected word is the string of one or more welt defined characters and an input field from which the selected word originated defines a fixed format, the boxes are displayed according to the fixed format and centered within the boxed input corrector, the well defined characters of the selected word in the note area are displayed appropriately within their associated boxes according to the fixed format, and the boxed input corrector provides a visual indication of which boxes contain modifiable characters.

29. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the selected word is the string of one or more well defined characters and the correction input is a character editing input overwriting a given box, the boxed input corrector receives a ranked character list of one or more well defined characters corresponding to possible characters which the character editing input may represent, reorders the ranked character list based on a format of the boxed input corrector and a guess list of characters which the box input corrector has previously suggested for the given box, removes any characters from the ranked character list which are not suitable for the given box, and replaces a current character associated with the given box with a highest ranked character found in the ranked character list.

30. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the correction input is a scrub gesture input and the selected word in the note area is the ink word, the boxed input corrector deletes the ink word.

31. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the correction input is a scrub gesture input and the selected word is the string of one or more well defined characters, the boxed input corrector determines the bounds of the scrub gesture input, determines the boxes which the bounds of the scrub gesture input overlap, selects each character which is fully covered by the bounds of the scrub gesture input, and, when the bounds of the scrub gesture input do not fully cover at least one character, determines if the scrub gesture input is a single character scrub gesture, and, if so, selects a single character which the bounds of the scrub gesture input overlap.

32. A boxed input correction system as recited in claim 31 wherein the boxed input corrector is operative such that when the selected word is displayed in a fixed format in the note area, the boxed input corrector clears each box associated with a selected character in the boxed input corrector.

33. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the correction input is an insert gesture input and the selected word is the ink word, the boxed input corrector forms two new ink words by splitting the ink word at an input position of the insert gesture input and sets the selected word to a one of the two new ink words.

34. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the correction input is an insert gesture input, the selected word is the string of one or more well defined characters, and the selected word is not displayed in a fixed format in the note area, the boxed input corrector adds a space character at an input position of the insert gesture input.

35. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the selected word is displayed in a fixed format in the note area, the boxed input corrector ignores insert gesture inputs.

36. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is operative such that when the correction input is a tap gesture input selecting a box from within the boxed input corrector, the boxed input corrector creates an empty pop-up menu list for use in storing correction actions which may be performed on the selected word in the note area and the selected character in the boxed input corrector.

37. A boxed input correction system as recited in claim 36 wherein the boxed input corrector is further operative such that when the correction input is the tap gesture input and the selected word is the ink word, the boxed input corrector adds a recognize command and a delete command to the pop-up menu list, displays a pop-up menu having the commands in the pop-up menu list as commands available for selection, and receives a command selected from the pop-up menu.

38. A boxed input correction system as recited in claim 24 wherein the boxed input corrector is further operative such that when the requested navigation direction is left and a left most character of the selected word in the note area is not visible in the boxed input corrector, the boxed input corrector scrolls a meaningful string of characters to the right.