Computer graphics processing and selective visual display system – Computer graphics processing – Character generating
Reexamination Certificate
2007-09-18
2007-09-18
Wang, Jin-Cheng (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Character generating
C345S467000, C715S252000
Reexamination Certificate
active
10322857
ABSTRACT:
A system and method determines an optimum size for a font for readability. A method determines font characteristics by determining a character density for the font and multiplying the character density by a sharpest focusable area of the viewing medium. The method further includes varying the character density according to a range in a number of clusters per fixation to determine a maximum font size and a minimum font size. In an embodiment, the character density is a ratio of a number of clusters per em in the font to a number of visible clusters within a predetermined foveal angle. The predetermined foveal angle can be a field of vision for sharpest focus of an eye or a reader specific foveal angle that reflects the reader's visual acuity, taking into consideration macular degeneration, vision impairments, vision sharpness, tunnel vision, eye disease, near sightedness, far sightedness, dyslexia, and astigmatism.
REFERENCES:
patent: 4700400 (1987-10-01), Ross
patent: 4851825 (1989-07-01), Naiman
patent: 5335294 (1994-08-01), Niki
patent: 5416898 (1995-05-01), Opstad et al.
patent: 5513277 (1996-04-01), Huttenlocher
patent: 5740456 (1998-04-01), Harel et al.
patent: 5966473 (1999-10-01), Takahashi et al.
patent: 6064767 (2000-05-01), Muir et al.
patent: 6073148 (2000-06-01), Rowe et al.
patent: 6075892 (2000-06-01), Fan et al.
patent: 6256650 (2001-07-01), Cedar et al.
patent: 6282327 (2001-08-01), Betrisey et al.
patent: 6310624 (2001-10-01), Watanabe
patent: 6320587 (2001-11-01), Funyu
patent: 6330577 (2001-12-01), Kim
patent: 6601021 (2003-07-01), Card et al.
patent: 6661921 (2003-12-01), Tanioka
patent: 6683611 (2004-01-01), Cleveland
patent: 6750875 (2004-06-01), Keely et al.
patent: 6931415 (2005-08-01), Nagahara
patent: 6975761 (2005-12-01), Swann et al.
patent: 0949801 (1999-10-01), None
patent: 7049865 (1995-02-01), None
patent: 9146520 (1997-06-01), None
Nazir, TA, Jacobs, AM, & O'Regan, JK, “Letter legibility and visual word recognition,” Memory & Cognition, Jul. 1998, 26 (4), 810-821.
Zwahlen, Helmut T. and Shaolin, Xiong. “Legibility of Text on Traffic Signs as a Function of Luminance and Size”, Paper No. 01 2693 presented at the 80th Annual Transportation Research Board Meeting, Washington, DC, Jan. 7-11, 2001.
Clark JJ, O'Regan JK, “Word ambiguity and the optimal viewing position in reading”, Vision Res. Feb. 1999;39(4):843-57.
D. Dhanya, A. G. Ramakrishnan, and P. B. Pati, “Script Identification in printed bilingual documents”, Sadhana, vol. 27, Part 1, Feb. 2002, pp. 73-82.
J. Hochberg; L. Kerns; P. Kelly; T. Thomas; “Automatic script identification from images using cluster-based templates”, Proc. Document Analysis and Recognition, vol. 1, Aug. 14-16, 1995, pp. 378-381.
V. Eglin; S. Bres; H. Emptoz; “Printed text featuring usin g the visual criteria of legibility and complexity”, Proc. Pattern Recognition, vol. 1, Aug. 16-20, 1998, pp. 942-944.
Marc Brysbaert et al.; “The Right Visual Field Advantage and the Optimal Viewing Position Effect: On the Relation Between Foveal and Parafoveal Word Recognition,” 1996 (pp. 385 through 395).
Helmut T. Zwahlen et al.; “Legibility of Text on Traffic Signs as a Function of Luminance and Size,” 2001 (16 pages).
Tatjana A. Nazir and Arthur M. Jacobs; Letter legibility and visual word recognition; Jun. 12, 2001; pp. 1-22; http:/
ivea.psycho.univ-paris5.fr/Papillon/Papillon.html.
James J. Clark and J. Kevin O'Regan; Word Ambiguity and the Optimal Viewing Position in Reading; Jun. 9, 1998; pp. 1-49; Preprint submitted to Elsevier Preprint; Laboratoire de Psychologie Expérimentale Centre National de la Recherche Scientifique Université René Descartes EPHE, EHESS, Paris, France.
H. Alvestrand; Tags for the Identification of Languages; Mar. 1995; pp. 1-8; http://www.ietf.org/rfc/rfc1766.txt.
ISO 639-2; Codes for the Representation of Names of Languages; Aug. 14, 2002; pp. 1-16; http://lcweb.loc.gov/standards/iso639-2/langcodes.html.
Bos et al., Cascading Style Sheets, level 2, CSS2 Specification, May 12, 1998, 25 pages.
Delaplain et al.; Line Spacing Between Successive Lines of Fonts Having Differing Heights, IBM Technical Disclosure Bulletin, Sep. 1984, vol. 27, No. 4B, p. 2374.
Holleran et al., Vertical Spacing of Computer-Presented Text, 1993, ACM Press, Conferene on Human Factors in Computing Systems, Interact :'93 and Chi '93 Conference Companion on Human Factors in Computing Systems, pp. 179-180, Amsterdam, The Netherlands, XP002344749 p. 17-, lrft-hand column, lines 29-37, p. 180, right-hand column, line 10-23.
IBM, Character Size Measurement, retrieved from the Internet Sep. 13, 2005: http:/web.archive.org/web/20020220160337/http:///www.pc.ibm.com/ww/healthycomputing/vdc-org.html] p. 1, lines 23-28.
Kahn et al., Principles of Typography for User Interface Design, Interactions, Nov. 1998-Dec. 1998, pp. 15-29.
Meko, Ltd, Flat Panels & The European Display Screen Directive, A Question of Character, Sep. 2002.
Thornton, James., Font Specification Options, Apr. 2, 2002, retrieved from the Internet Sep. 15, 2005, http://jamesthornton.com/emacs
ode/emacs—537.html, 2 pages.
Zramdini et al., Optical font Recognition from Projection Profiles, Electronic Publishing, vol. 6 No. 3, Sep. 1993 pp. 249-260.
Arditi, et al., “Reading with fixed and variable character pitch”, Optical Society of America, vol. 7, No. 10, 1990, pp. 2011-2015.
LandOfFree
International automatic line height system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with International automatic line height system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and International automatic line height system and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3728314