Implicit page breaks for digitally represented handwriting

• US 7,031,521 B2
• Filed: 10/01/2004
• Issued: 04/18/2006
• Est. Priority Date: 11/10/2000
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Lui, Charlton E., Altman, Dan W., Tee, Cynthia C., Feldman, Evan M., Smith, Anthony S.
• Primary Examiner(s): Miriam, Daniel
• Application Number:
  US10/954,293
• Publication Number:
  US 20050053284A1
• Time in Patent Office: 564 Days
• Field of Search: 382175-176, 382/181, 382186-189, 382/195, 382/218, 382/229, 382/313, 178/18.01, 178/19.01, 345/173, 345/179, 715506-508, 715/525
• US Class Current: 382/187
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 40/114 Pagination
• CPC Class Codes: G06V 30/1423 the instrument generating sequences of position coordinates corresponding to handwriting preprocessing or recognising digital ink G06V30/32

Abstract

A logical separation between pages, such as an implicit page break, is introduced to separate text entered during one handwriting session from text entered during another handwriting session. The amount of time elapsed since ink has been captured on the previous page is a factor that may be used to determine whether to insert an implicit page break into the new page. A change in context, such as a different date or different recognized subject matter labels, is also a factor that may be considered in determining whether to insert an implicit page break.

Claims

1. A computer-readable medium having computer-executable instructions for logically separating a first page of digitally represented handwriting from a second page of digitally represented handwriting by performing steps comprising:

determining whether capturing inked input on the first page and capturing inked input on the second page occurred during separate note take sessions; and

responsive to determining that the inked input on the first page was captured during a first note taking session and that the inked input captured on the second page occurred during a second note taking session, storing an indication that the first page and the second page are logically separate.

2. The computer-readable medium of claim 1 having further computer-executable instructions for performing the steps of:

displaying, on a display surface, either the inked input captured on the first page or the inked input captured on the second page, but not both the inked input captured on the first page and the inked input captured on the second page, based upon the stored indication of a logical separation between the first and second pages, even when there is sufficient display surface area to display simultaneously both the inked input captured on the first page and the inked input captured on the second page.

3. A method of inserting an implicit page break into digitally represented handwriting, the method comprising the steps of:

responsive to capturing inked input on a new page, determining whether a threshold amount of time has elapsed between capturing the inked input on the new page and performing handwriting recognition on inked input captured on the immediately preceding page; and

inserting an implicit page break indicating that the new page and the page immediately preceding the new page are logically separate if the threshold amount of time has elapsed.

4. The method of claim 3, wherein said step of inserting further includes inserting the implicit page break on the new page above where the inked input has been captured.

5. A computer readable medium having computer-executable instructions stored thereon for performing the steps recited in claim 3.

6. The method of claim 3 further comprising the step of:

displaying, on a display surface, either the inked input captured on the new page or the inked input captured on the immediately preceding page, but not both the inked input captured on the new page and the inked input captured on the immediately preceding page, based upon the inserted implicit page break, even when there is sufficient display surface area to display simultaneously both the inked input captured on the new page and the inked input captured on the immediately preceding page.

7. A method of inserting an implicit page break into digitally represented inked input, the method comprising the steps of:

responsive to capturing inked input on a new page, determining whether a context change has occurred between capturing the inked input on the new page and capturing inked input on the immediately preceding page; and

inserting an implicit page break indicating that the new page and the page immediately preceding the new page are logically separate if a context change has occurred.

8. The method of claim 7, wherein said step of inserting further includes inserting the implicit page break on the new page above where the inked input has been captured.

9. The method of claim 7, wherein the step of determining whether a context change has occurred includes

recognizing a first context on the page immediately preceding the new page;

and

recognizing a second context on the new page, wherein the second context is different than the first context.

10. The method of claim 7 further comprising the step of:

displaying, on a display surface, either the inked input captured on the new page or the inked input captured on the immediately preceding page, but not both the inked input captured on the new page and the inked input captured on the immediately preceding page, based upon the inserted implicit page break, even when there is sufficient display surface area to display simultaneously both the inked input captured on the new page and the inked input captured on the immediately preceding page.

11. A computer readable medium having computer-executable instructions stored thereon for performing the steps recited in claim 7.

12. A method of inserting an implicit page break into digitally represented inked input, the method comprising the steps of:

responsive to capturing inked input on a new page, determining whether the inked input on the new page was capturing during a different note take session than inked input captured on the immediately preceding page; and

inserting an implicit page break indicating that the new page and the page immediately preceding the new page are logically separate if a context change has occurred.

13. The method of claim 12, wherein said step of inserting further includes inserting the implicit page break on the new page above where the inked input has been captured.

14. The method of claim 12 further comprising the step of:

displaying, on a display surface, either the inked input captured on the new page or the inked input captured on the immediately preceding page, but not both the inked input captured on the new page and the inked input captured on the immediately preceding page, based upon the inserted implicit page break, even when there is sufficient display surface area to display simultaneously both the inked input captured on the new page and the inked input captured on the immediately preceding page.

15. A computer readable medium having computer-executable instructions stored thereon for performing the steps recited in claim 12.