The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 1997
Filed:
Oct. 24, 1994
Stuart Raymond Patrick, Issaquah, WA (US);
Amit Chatterjee, Redmond, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
In response to a command to draw text on a screen, a computer's operating system creates a superglyph bitmap that combines text and a background color into a single bitmap. The bitmap is then transferred to screen memory by either a graphics driver or the operating system itself, depending upon whether the graphics driver has special characteristics for displaying the bitmap such as monochrome-to-color conversion. With this division of tasks, graphics drivers may be simplified to handle tasks for which they are uniquely qualified and the operating system handles more general tasks such a creating the bitmap. The concept may also be applied to other types of bitmaps, wherever it is advantageous to create bitmaps with the operating system and transfer bitmaps with either a graphics driver or the operating system.