System and method for rendering graphics and video on a display

• US 7,236,204 B2
• Filed: 02/20/2001
• Issued: 06/26/2007
• Est. Priority Date: 02/20/2001
• Status: Expired due to Term

• Current Assignee: ARRIS Enterprises LLC (CommScope Holding Company, Inc.)
• Original Assignee: Digeo Incorporated (CommScope Holding Company, Inc.)
• Inventors: Perlman, Stephen G.
• Primary Examiner(s): Natnael; Paulos M.
• Application Number:
  US09/792,019
• Publication Number:
  US 20020135696A1
• Time in Patent Office: 2,317 Days
• Field of Search: 348/441, 348/446, 348/448, 348/452, 348/455, 348/458, 348/459, 348/581, 345/698, 345/699
• US Class Current: 348/448
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G09G 2310/0229 De-interlacing
• CPC Class Codes: G09G 2320/0247 Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2360/02 Graphics controller able to handle multiple formats, e.g. input or output formats
• CPC Class Codes: G09G 2370/027 Arrangements and methods specific for the display of internet documents
• CPC Class Codes: H04N 7/012 Conversion between an interlaced and a progressive signal for graphics images G09G2310/0229

Abstract

A method for properly rendering various types of graphical and video content is disclosed comprising: determining whether a display on which the content is to be displayed is a progressive or an interlaced display; for a progressive display, de-interlacing any interlaced source content, transforming any bitmapped source content to fit the progressive display'"'"'s resolution and/or scaling factors, and geometrically rendering any source content in a geometric description format into a bitmap image to fit the progressive display'"'"'s resolution and/or scaling factors; and for an interlaced display, if the interlaced source content is not provided at the interlaced display'"'"'s resolution and/or scaling factors, de-interlacing the interlaced source content to produce de-interlaced source content, and transforming the de-interlaced source content to fit the interlaced display'"'"'s resolution and/or scaling factors.

Claims

1. A method for rendering source content on an interlaced display comprising:

if a portion of said source content is interlaced source content, determining whether said interlaced source content is provided at said interlaced display'"'"'s resolution and/or scaling factors; and

if said interlaced source content is not provided at said interlaced display'"'"'s resolution and/or scaling factors,

de-interlacing said interlaced source content to produce de-interlaced source content, and

transforming said de-interlaced source content to fit said interlaced display'"'"'s resolution and/or scaling factors; and

if a portion of said source content is graphics content, determining whether any of said graphics content is in a geometric description format; and

geometrically rendering said graphics content in said geometric description format into a bitmap image to fit said interlaced display'"'"'s resolution and/or scaling factors.

2. The method as in claim 1 further comprising:

applying a flicker filter to said graphics content.

3. The method as in claim 2 further comprising:

compositing said graphics content with any existing video source content to produce a final image; and

displaying said final image on said interlaced display.

4. A method for rendering source content on a progressive display comprising:

de-interlacing any interlaced source content;

transforming any bitmapped source content to fit said progressive display'"'"'s resolution and/or scaling factors; and

geometrically rendering any source content in a geometric description format into a bitmap image to fit said progressive display'"'"'s resolution and/or scaling factors.

5. The method as in claim 4 further comprising:

compositing said all of said source content to produce a final image; and

displaying said final image on said progressive display.

6. A system for rendering a plurality of different types of graphics and video source content on an interlaced display comprising:

de-interlacing means for de-interlacing any interlaced source content to produce de-interlaced source content if said interlaced source content is not provided at said interlaced display'"'"'s resolution and/or scaling factors;

transformation means transforming said de-interlaced source content to fit said interlaced display'"'"'s resolution and/or scaling factors; and

graphics determination means for determining whether any of said graphics content is in a geometric description format.

7. The system as in claim 6 further comprising:

geometric rendering means for geometrically rendering said graphics content in said geometric description format into a bitmap image to fit said interlaced display'"'"'s resolution and/or scaling factors.

8. The system as in claim 7 further comprising:

flicker filter means for filtering said graphics content.

9. The system as in claim 8 further comprising:

compositing means for compositing said graphics content with any existing video source content to produce a final image; and

display means for displaying said final image on said interlaced display.

10. A system for rendering source content on a progressive display comprising:

de-interlacing means for de-interlacing any interlaced source content;

transformation means for transforming any bitmapped source content to fit said progressive display'"'"'s resolution and/or scaling factors; and

geometric rendering means for geometrically rendering any source content in a geometric description format into a bitmap image to fit said progressive display'"'"'s resolution and/or scaling factors.

11. The system as in claim 10 further comprising:

compositing means for compositing said all of said source content to produce a final image; and

display means for displaying said final image on said progressive display.

12. A method for properly rendering various types of graphical and video content comprising:

determining whether a display on which said content is to be displayed is a progressive or an interlaced display;

for a progressive display, de-interlacing any interlaced source content, transforming any bitmapped source content to fit said progressive display'"'"'s resolution and/or scaling factors, and geometrically rendering any source content in a geometric description format into a bitmap image to fit said progressive display'"'"'s resolution and/or scaling factors; and

for an interlaced display, if said interlaced source content is not provided at said interlaced display'"'"'s resolution and/or scaling factors, de-interlacing said interlaced source content to produce de-interlaced source content, and transforming said de-interlaced source content to fit said interlaced display'"'"'s resolution and/or scaling factors.

13. The method as in claim 12 further comprising:

compositing said all of said source content to produce a final image; and

displaying said final image on said progressive display.

14. The method as in claim 12 further comprising:

for a progressive display, if a portion of said source content is graphics content, determining whether any of said graphics content is in a geometric description format; and

geometrically rendering said graphics content in said geometric description format into a bitmap image to fit said interlaced display'"'"'s resolution and/or scaling factors.

15. The method as in claim 14 further comprising:

applying a flicker filter to said graphics content.

16. The method as in claim 15 further comprising:

compositing said graphics content with any existing video source content to produce a final image; and

displaying said final image on said interlaced display.