Buffer Optimization
US-2016104457-A1 · Apr 14, 2016 · US
Font control for electro-optic displays and related apparatus and methods
US9928810B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9928810-B2 |
| Application number | US-201615010980-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2016 |
| Priority date | Jan 30, 2015 |
| Publication date | Mar 27, 2018 |
| Grant date | Mar 27, 2018 |
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- Title
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- Abstract
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Abstract
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Methods are described for sequentially rendering fonts at multiple bit depths while reducing differences in visual appearance between the fonts rendered at different bit depths. The same hinting may be used for rendering the font at two different bit depths. Methods for reducing artifacts including edge artifacts also are described, including the use of font masks for updating electro-optic displays.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for driving an electro-optic display, the method comprising: displaying a glyph on a display at a first time, wherein the glyph includes a font using a font hint, wherein at the first time, the glyph is presented at a first bit depth; and displaying the same glyph at a second time on the display at a second bit depth, wherein the glyph presented at the second time includes the same font hint, wherein the first bit depth has fewer bits than the second bit depth, and wherein the time needed to display the glyph in the first bit depth is shorter than the time needed to display the glyph in the second bit depth. 2. The method of claim 1 , wherein the first bit depth is 1-bit. 3. The method of claim 1 , wherein the font hint is specific to the second bit depth.
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Classifications
Reduction of after-image effects · CPC title
for enhancement of character form, e.g. smoothing · CPC title
for resetting or blanking · CPC title
- G09G3/3446Primary
with more than two electrodes controlling the modulating element · CPC title
based on particles moving in a fluid or in a gas, e.g. electrophoretic devices (electrophoretic devices per se G02F1/167) · CPC title
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Frequently asked questions
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- What does patent US9928810B2 cover?
- Methods are described for sequentially rendering fonts at multiple bit depths while reducing differences in visual appearance between the fonts rendered at different bit depths. The same hinting may be used for rendering the font at two different bit depths. Methods for reducing artifacts including edge artifacts also are described, including the use of font masks for updating electro-optic dis…
- Who is the assignee on this patent?
- E Ink Corp
- What technology area does this patent fall under?
- Primary CPC classification G09G3/3446. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 27 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).