IMAGE METADATA OVER EMBEDDED DATAPORT

• US 20190043442A1
• Filed: 07/12/2018
• Published: 02/07/2019
• Est. Priority Date: 07/12/2018
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: KP, Sameer, Angadi, Vinay, Lee, Yiting, Wooster, Roland, Karalatti, Sagar
• Application Number:
  US16/034,302
• Publication Number:
  US 20190043442A1
• Time in Patent Office: Days
• CPC Class Codes: G06F 16/5838 using colour
• CPC Class Codes: G06F 16/78 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 2360/16 Calculation or use of calculated indices related to luminance levels in display data
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• CPC Class Codes: G09G 2370/042 for monitor identification
• CPC Class Codes: G09G 3/2096 Details of the interface to the display terminal specific for a flat panel suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167
• CPC Class Codes: G09G 3/3413 Details of control of colour illumination sources
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092
• CPC Class Codes: G09G 5/005 Adapting incoming signals to the display format of the display terminal
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: G09G 5/02 characterised by the way in which colour is displayed details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 5/04 using circuits for interfacing with colour displays
• CPC Class Codes: G09G 5/10 Intensity circuits

Abstract

A processing unit, device, system and method are described. A processing unit can be configured to access frame data and associated metadata. The processing unit can be configured to send the associated metadata from a processing unit to a display controller on a channel that is different than a channel configured to send the frame data.

Claims

1. A processing unit comprising:

a display engine, configured to;

access frame data and associated metadata; and

send the associated metadata on a channel that is different than a channel configured to send the frame data.

2. The processing unit of claim 1, wherein the associated metadata is sent using a sideband channel of a digital display interface and the frame data is sent using a main channel of the digital display interface.

3. The processing unit of claim 2, wherein the digital display interface is an embedded display port interface.

4. The processing unit of claim 1, wherein the frame data is sent using a synchronous transfer protocol.

5. The processing unit of claim 1, wherein the associated metadata is sent using an asynchronous transfer protocol.

6. The processing unit of claim 2, wherein the main channel of the digital display interface structure prevents transmission of the associated metadata.

7. The processing unit of claim 1, wherein the associated metadata includes luminance and color information for one or more frames.

8. The processing unit of claim 7, wherein the associated metadata includes a maximum luminance value for one or more frames.

9. The processing unit of claim 1, wherein the associated metadata includes a color range value for one or more frames.

10. An electronic device, comprising:

a digital display interface, configured to connect to an embedded display device, the digital display interface including a main channel and a sideband channel; and

a display engine, configured to;

access frame data and associated metadata;

send the frame data to the embedded display device through the main channel of the digital display interface; and

send the associated metadata to the embedded display device through the sideband channel of the digital display interface.

11. The electronic device of claim 10, wherein the digital display interface is an embedded display port interface.

12. The electronic device of claim 10, wherein the frame data is sent using a synchronous transfer protocol.

13. The electronic device of claim 10, wherein the associated metadata sent using an asynchronous transfer protocol.

14. The electronic device of claim 10, wherein the main channel of the digital display interface structure prevents transmission of the associated metadata.

15. The electronic device of claim 10, wherein the associated metadata includes luminance and color value information for one or more frames.

16. The electronic device of claim 15, wherein the associated metadata includes a maximum luminance value for the one or more frames.

17. The electronic device of claim 15, wherein the associated metadata includes a color range value for the one or more frames.

18. The electronic device of claim 10, wherein the device further includes an embedded display.

19. The electronic device of claim 10, wherein the device further includes a display controller connected to the display engine and the embedded display.

20. A computer system comprising:

one or more processors;

a digital display interface;

a graphics processing unit, configured to;

access frame data and associated metadata;

send the frame data to the embedded display device through a main channel of the digital display interface; and

send the associated metadata to the embedded display device through a sideband channel of the digital display interface

an embedded display controller, connected to the graphics processing unit and configured to;

adjust the frame data based on the associated metadata; and

send the frame data to an embedded display for presentation.

21. The computer system of claim 20, wherein the main channel of the digital display interface structure prevents transmission of the associated metadata.

22. The computer system of claim 20, wherein the associated metadata includes luminance and color value information for one or more frames.

23. The computer system of claim 20, wherein the associated metadata includes a maximum luminance value for the one or more frames.

24. The computer system of claim 20, wherein the associated metadata includes a color range value for the one or more frames.

25. The computer system of claim 20, further comprising:

a cable connecting the graphic processing unit to the embedded display controller wherein the main channel and sideband channel use the cable to communicate with the embedded display controller.