Method, apparatus and system to provide video data for buffering

• US 8,963,944 B2
• Filed: 05/15/2012
• Issued: 02/24/2015
• Est. Priority Date: 05/15/2012
• Status: Active Grant

• Current Assignee: Omnivision Technologies Incorporated (Will Semiconductor Co., Ltd. Shanghai)
• Original Assignee: Omnivision Technologies Incorporated (Will Semiconductor Co., Ltd. Shanghai)
• Inventors: Lu, Manuel, Ng, Sunny
• Primary Examiner(s): Chauhan, Ulka
• Assistant Examiner(s): ZALALEE, SULTANA MARCIA
• Application Number:
  US13/472,423
• Publication Number:
  US 20130308057A1
• Time in Patent Office: 1,015 Days
• Field of Search: None
• US Class Current: 345/589
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: H04N 19/152 by measuring the fullness of the transmission buffer

Abstract

Techniques and mechanisms for circuitry to provide video data for loading to a buffer. In an embodiment, a loader circuit receives video data and determines MX data for a video frame and NZ data for the video frame, wherein M and N are different respective dimensions of a color space, and wherein X is a first encoding type and Z is a second encoding type. The first MX data includes data representing a first portion of a color component value, and the first NZ data includes data representing a second portion of that color component value. In another embodiment, the loader circuit sends the MX data via a first channel while sending the NZ data via a second channel to a random access buffer.

Claims

1. A method comprising:

at a first loader circuit;

receiving first video data;

determining, based on the received first video data, first MX data for a first video frame, first MZ data for the first video frame and first NZ data for the first video frame, wherein M and N are different respective dimensions of a color space, and wherein X is a first encoding type and Z is a second encoding type;

sending the first MX data from the first loader circuit via a first channel, wherein display conditioning logic receives the first MX data independent of a first random access buffer;

during the sending the first MX data, sending the first NZ data from the first loader circuit via a second channel to the first random access buffer, wherein the first MX data and the first NZ data are sent in a first time slot; and

sending the first MZ data from the first loader circuit to a second random access buffer via a channel other than the first channel, wherein the first MZ data is sent in a second time slot preceding the first time slot.

2. The method of claim 1, wherein the first MX data includes data representing a first portion of a color component value, and wherein the first NZ data includes data representing a second portion of the color component value.

3. The method of claim 1, wherein the second encoding type is a thermometer encoding type.

4. The method of claim 1, wherein the channel other than the first channel is the second channel.

5. The method of claim 4, wherein determining the first MZ data is based on a set of one or more value ranges which each correspond to a respective dimension of another color space.

6. The method of claim 4, further comprising:

receiving the first MX data at a first-in-first-out (FIFO) buffer; and

receiving the first MZ data at the second random access buffer;

debuffering the first MX data from the FIFO buffer to the display conditioning logic; and

during the debuffering the first MX data, debuffering the MZ from the second random access buffer to the display conditioning logic.

7. The method of claim 4, further comprising:

determining based on the received first video data first NX data for the first video frame; and

sending the first NX data from the first loader circuit via the first channel, wherein the first NX data is sent in a third time slot after the first time slot.

8. The method of claim 1, further comprising:

at a second loader circuit;

determining based on second video data first MZ data for the first video frame; and

sending the first MZ data from the second loader circuit to a second random access buffer via a third channel, wherein the first MZ data is sent in a second time slot preceding the first time slot.

9. An apparatus comprising:

a video exchange circuit to receive first video data, the video exchange circuit including;

encode logic to determine, based on the first video data, first MX data for a first video frame, first MZ data for the first video frame and first NZ data for the first video frame, wherein M and N are different respective dimensions of a color space, and wherein X is a first encoding type and Z is a second encoding type, the encode logic further to send the first MX data from the video exchange circuit via a first channel concurrent with the encode logic to send the first NZ data from the video exchange circuit to a first random access buffer via a second channel,

wherein the first MX data and the first NZ data are sent in a first time slot, the encode logic further to send the first MZ data from the video exchange circuit to a second random access buffer via a channel other than the first channel, wherein the first MZ data is sent in a second time slot preceding the first time slot, wherein display conditioning logic receives the first MX data independent of the first random access buffer.

10. The apparatus of claim 9, wherein the first MX data includes data to represent a first portion of a color component value, and wherein the first NZ data includes data to represent a second portion of the color component value.

11. The apparatus of claim 9, wherein the second encoding type is a thermometer encoding type.

12. The apparatus of claim 9, wherein the channel other than the first channel is the second channel.

13. The apparatus of claim 12, wherein the encode logic to determine the first MZ data based on a set of one or more value ranges which each correspond to a respective dimension of another color space.

14. The apparatus of claim 12, the encode logic further to determine, based on the received first video data, first NX data for the first video frame, the encode logic further to send the first NX data from the first loader circuit via the first channel, wherein the first NX data is sent in a third time slot after the first time slot.

15. The apparatus of claim 9, further comprising:

a second loader circuit to determine, based on second video data, first MZ data for the first video frame, the second loader circuit further to send the first MZ data from the second loader circuit to a second random access buffer via a third channel, wherein the first MZ data is sent in a second time slot preceding the first time slot.

16. A system comprising:

a first random access buffer;

a video exchange circuit to receive first video data, the video exchange circuit including;

encode logic to determine, based on the first video data, first MX data for a first video frame, first MZ data for the first video frame and first NZ data for the first video frame, wherein M and N are different respective dimensions of a color space, and wherein X is a first encoding type and Z is a second encoding type, the encode logic further to send the first MX data from the video exchange circuit via a first channel concurrent with the encode logic to send the first NZ data from the video exchange circuit to the first random access buffer via a second channel,

wherein the first MX data and the first NZ data are sent in a first time slot, the encode logic further to send the first MZ data from the video exchange circuit to a second random access buffer via a channel other than the first channel, wherein the first MZ data is sent in a second time slot preceding the first time slot, wherein display conditioning logic receives the first MX data independent of the first random access buffer.

17. The system of claim 16, wherein the first MX data includes data to represent a first portion of a color component value, and wherein the first NZ data includes data to represent a second portion of the color component value.

18. The system of claim 16, wherein the channel other than the first channel is the second channel.

19. The system of claim 18, wherein the encode logic to determine the first MZ data based on a set of one or more value ranges which each correspond to a respective dimension of another color space.

20. The system of claim 16, further comprising:

a second loader circuit to determine, based on second video data, first MZ data for the first video frame, the second loader circuit further to send the first MZ data from the second loader circuit to a second random access buffer via a third channel, wherein the first MZ data is sent in a second time slot preceding the first time slot.