Implicit page breaks for digitally represented handwriting

• US 7,197,185 B2
• Filed: 01/19/2006
• Issued: 03/27/2007
• 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, Smith, Anthony S, Tee, Cynthia C, Altman, Dan W, Feldman, Evan M
• Primary Examiner(s): MARIAM, DANIEL G
• Application Number:
  US11/334,406
• Publication Number:
  US 20060115155A1
• Time in Patent Office: 432 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 system for logically separating a first page of digitally represented handwriting from a second page of digitally represented handwriting, comprising:

a digitizer configured to capture inked input on a page during a note taking session;

a memory configured to store captured inked input on the page; and

a processor configured to;

determine whether inked input captured on a first page and inked input captured on a second page occurred during separate note take sessions, and

store in the memory an indication that the first page and the second page are logically separate if the inked input on the first page was captured during a first note taking session and the inked input on the second page was captured during a second note taking session.

2. The system of claim 1, further comprising a display coupled to the processor and configured to display 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 system for inserting an implicit page break into digitally represented handwriting, comprising:

a digitizer configured to capture inked input on a page;

a memory configured to store captured inked input on the page; and

a processor coupled to the digitizer and the memory and configured to;

perform handwriting recognition on inked input,

determine, responsive to inked input being captured on a new page, whether a threshold amount of time has elapsed between when the inked input was captured on the new page and when handwriting recognition was performed on inked input captured on the immediately preceding page, and

insert 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 system of claim 3, wherein the processor is further configured to insert the implicit page break on the new page above where the inked input has been captured.

5. The system of claim 3 further comprising a display coupled to the processor and configured to display 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.

6. A system for inserting an implicit page break into digitally represented inked input, comprising:

a digitizer configured to capture inked input on a page;

a memory configured to store captured inked input on the page; and

a processor coupled to the digitizer and memory and configured to;

determine, responsive to inked input being captured on a new page, whether a context change has occurred between when the inked input was captured on the new page and when the inked input was captured on the immediately preceding page; and

insert 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.

7. The system of claim 6, wherein the processor is further configured to insert the implicit page break on the new page above where the inked input has been captured.

8. The system of claim 6, wherein the processor is further configured to determine determining whether a context change has occurred by

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.

9. The system of claim 6 further comprising a display coupled to the processor, the display configured to display 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.