Displaying Data on Lower Resolution Displays

• US 20090273708A1
• Filed: 07/15/2009
• Published: 11/05/2009
• Est. Priority Date: 04/28/1999
• Status: Active Grant

• Current Assignee: James P. Ketrenos
• Original Assignee: James P. Ketrenos
• Inventors: Ketrenos, James P.
• Granted Patent: US 7,999,877 B2
• Time in Patent Office: Days
• US Class Current: 348/441
• CPC Class Codes: G09G 2340/045 Zooming at least part of an image, i.e. enlarging it or shrinking it
• CPC Class Codes: G09G 5/391 Resolution modifying circuits, e.g. variable screen formats
• CPC Class Codes: H04N 19/112 according to a given display mode, e.g. for interlaced or progressive display mode
• CPC Class Codes: H04N 19/44 Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
• CPC Class Codes: H04N 19/59 involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
• CPC Class Codes: H04N 7/01 Conversion of standards , e.g. involving analogue television standards or digital television standards processed at pixel level
• CPC Class Codes: H04N 7/012 Conversion between an interlaced and a progressive signal for graphics images G09G2310/0229

Abstract

Data intended to be displayed on a higher resolution display such as a non-interlaced display used as a computer monitor may be converted for display on a lower resolution display such as an interlaced display. The conversion may be done in a way that preserves the intended frame format while enhancing readability. For example, in one embodiment, the frames intended for non-interlaced display may be preserved in size for display in the same frame format on a lower resolution interlaced display. Local magnification may be selectively implemented for particular regions to enhance the readability of those regions. Upon selection, such local magnification may provide pixel loss and color corrections in addition to local magnification. In this way the frame format may be preserved while enhancing readability.

Claims

1. A method of displaying information on a lower resolution display comprising:

receiving data formatted for display on a higher resolution display;

selectively enlarging a portion of the information on the lower resolution display; and

identifying regions of likely pixel loss when said data is displayed on said lower resolution display.

2. The method of claim 1 including converting data formatted for display on higher resolution non-interlaced display, for display on a lower resolution interlaced display.

3. The method of claim 2 including preserving the display size of the non-interlaced information so that a frame of non-interlaced information is displayed as a frame of interlaced information.

4. The method of claim 1 including identifying areas of likely color distortion in converting from higher to lower resolution display.

5. The method of claim 4 including locating high saturation colors which are sufficiently close to one another to result in color distortion.

6. The method of claim 4 including correcting for hue differences between interlaced and non-interlaced displays.

7. A processor based system comprising:

a processor to identify regions of likely pixel loss when displaying data formatted for display on a higher resolution display is displayed on a lower resolution display; and

a memory coupled to said processor, said memory storing instructions that cause the selective enlargement of data intended for display on a higher resolution display when said data is displayed on a lower resolution display, wherein said processor is adapted to convert data formatted for display on a higher resolution, display for display on a lower resolution display.

8. The system of claim 7 including a remote control unit adapted to provide input signals for said processor.

9. The system of claim 7 including a television receiver coupled to said processor.

10. The system of claim 7 wherein said system is a set-top computer system.

11. The system of claim 7, said processor to identify areas of likely color distortion and converting from non-interlaced to interlaced display.

12. The system of claim 7, said processor to locate high saturation colors which are sufficiently close to one another to result in color saturation.

13. The system of claim 7, said processor to correct the hue differences between interlaced and non-interlaced displays.