Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
ClearType
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
==Patents== ClearType is a [[registered trademark]] and Microsoft claims protection under the following U.S. [[patent]]s, all expired:<ref name="msip"> {{cite web|url=http://www.microsoft.com/iplicensing/productDetail.aspx?productTitle=ClearType |title=Microsoft Intellectual Property and Licensing: ClearType |website=[[Microsoft]] |access-date=2008-12-02 |url-status=dead |archive-url=https://web.archive.org/web/20090113030909/http://www.microsoft.com/iplicensing/productDetail.aspx?productTitle=ClearType |archive-date=January 13, 2009 }} </ref><ref name="cleartype_expl">{{cite web|url=http://david.freetype.org/cleartype-patents.html|date=2007-06-01|access-date=2009-04-09|title=ClearType Patents, FreeType and the Unix Desktop: an explanation|author=David Turner|archive-date=2009-03-31|archive-url=https://web.archive.org/web/20090331224109/http://david.freetype.org/cleartype-patents.html|url-status=dead}}</ref> * Subpixel rendering: ** {{US patent|6188385}} β ''Method and apparatus for displaying images such as text'' ** {{US patent|6219025}} β ''Mapping image data samples to pixel sub-components on a striped display device'' ** {{US patent|6239783}} β ''Weighted mapping of image data samples to pixel sub-components on a display device'' ** {{US patent|6307566}} β ''Methods and apparatus for performing image rendering and rasterization operations'' * Complex color filtering: ** {{US patent|6225973}} β ''Mapping samples of foreground/background color image data to pixel sub-components'' ** {{US patent|6243070}} β ''Method and apparatus for detecting and reducing color artifacts in images'' ** {{US patent|6393145}} β ''Methods apparatus and data structures for enhancing the resolution of images to be rendered on patterned display devices'' ** {{US patent|6973210}} β ''Filtering image data to obtain samples mapped to pixel sub-components of a display device'' ** {{US patent|7085412}} β ''Filtering image data to obtain samples mapped to pixel sub-components of a display device'' * Subpixel font hinting and layout: ** {{US patent|6421054}} β ''Methods and apparatus for performing grid fitting and hinting operations'' ** {{US patent|6282327}} β ''Maintaining advance widths of existing characters that have been resolution enhanced'' * ClearType tuning: ** {{US patent|6624828}} β ''Method and apparatus for improving the quality of displayed images through the use of user reference information''
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)