Using handwriting recognition in computer algebra

Image analysis – Pattern recognition – On-line recognition of handwritten characters

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C382S186000, C382S314000, C708S131000

Reexamination Certificate

active

08073258

ABSTRACT:
Systems and methods for use in handwriting recognition in computer algebra are provided. One disclosed method includes receiving handwriting input from a user via a handwriting input device, the handwriting input representing a mathematical expression. The method further includes, at a recognizer, processing the handwriting input to recognize a plurality of candidates and ranking the plurality of candidates to form initial candidate data. The method may further include, at an application program, scanning the plurality of candidates for segments that match application-level criteria, and adjusting a rank of one or more of the plurality of candidates based on the matching, to form a processed candidate list. The method may further include displaying the processed candidate list via a graphical user interface.

REFERENCES:
patent: 5627914 (1997-05-01), Pagallo
patent: 5655136 (1997-08-01), Morgan
patent: 6795838 (2004-09-01), Kataoka
patent: 7137076 (2006-11-01), Iwema et al.
patent: 7181068 (2007-02-01), Suzuki et al.
patent: 7490041 (2009-02-01), Davis
patent: 7561739 (2009-07-01), Xu et al.
patent: 7917558 (2011-03-01), Uejima
patent: 2003/0016873 (2003-01-01), Nagel et al.
patent: 2004/0015342 (2004-01-01), Garst
patent: 2004/0054701 (2004-03-01), Garst
patent: 2006/0001667 (2006-01-01), LaViola et al.
patent: 2006/0062470 (2006-03-01), Zhu et al.
patent: 2006/0062471 (2006-03-01), Xu et al.
patent: 2009/0052777 (2009-02-01), Yu et al.
patent: WO2006136849 (2006-12-01), None
Wan, “An Interactive Mathematical Handwriting Recognizer for the Pocket PC”, retrieved on Jun. 28, 2007, at <<http://www.orcca.on.ca/MathML/MathHWRec/abstract.html>>, pp. 1-4.
Fujimoto et al, “A Handwriting Interface to Various Computer Algebra Systems via OpenXM Framework”, retrieved on Jun. 28, 2007, at <<http://personales.unican.es/iglesias/ACA-Session/Fujimoto.htm>>, pp. 1-2.
Okamura et al, “Handwriting Interface for Computer Algebra Systems” retrieved at <<http://www.inftyproject.org/articles/1999—ATCM—Okamura.pdf>>, p. 10.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Using handwriting recognition in computer algebra does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Using handwriting recognition in computer algebra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using handwriting recognition in computer algebra will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4268950

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.