Enumeration system and method for a LED display

• US 8,766,880 B2
• Filed: 12/11/2007
• Issued: 07/01/2014
• Est. Priority Date: 12/11/2007
• Status: Expired due to Fees

• Current Assignee: ADTI Media LLC
• Original Assignee: ADTI Media, LLC140
• Inventors: Kharrati, Hamid, Sefton, Robert J.
• Primary Examiner(s): HERNANDEZ, JESUS J
• Application Number:
  US12/001,312
• Publication Number:
  US 20090146917A1
• Time in Patent Office: 2,394 Days
• Field of Search: None
• US Class Current: 345/46
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 2330/045 Protection against panel overheating
• CPC Class Codes: G09G 2330/08 Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]

Abstract

A system and method are provided for a pixel module to determine its location in a large scale LED display. The system and method determine the pixel module'"'"'s location based upon the data received by the module and the identity of the module'"'"'s port via which the data was received.

Claims

1. A method of identifying the location of a light module in a two dimensional array of light modules, comprising:

receiving, via a single data port of a plurality of data ports of a recipient light module, data representing at least the identity of a row number and a column number of a source light module that is the source of the received data;

setting the column number for the recipient light module to the column number of the source light module and a row number for the recipient light module to the row number of the source light module incremented by a first predetermined value if the data stream is received via a first data port of the recipient light module;

setting the row number for the recipient light module to the row number of the source light module and a column number for the recipient light module to the column number of the source light module incremented by a second predetermined value if the data stream is received via a second data port of the recipient light module;

setting the row number for the recipient light module to the row number of the source light module decremented by a third predetermined value and a column number for the recipient light module to the column number of the source light module if the data stream is received via a third data port of the recipient light module; and

setting the column number for the recipient light module to the column number of the source light module decremented by a fourth predetermined value and a row number for the recipient light module to the row number of the source light module if the data stream is received via a fourth data port of the recipient light module.

3. The method according to claim 1, wherein recipient light module includes one or more circuits that are communicatively coupled to the first data port, the second data port, the third data port, and the fourth data port, wherein the one or more circuits set the column number and the row number for the recipient light module.

4. The method according to claim 3, wherein the one or more circuits include an enumeration state machine.

5. The method according to claim 3, wherein the one or more circuits include a packet processor that is operatively coupled to the enumeration state machine.

6. The method according to claim 3, wherein the one or more circuits are part of an FPGA.

7. The method according to claim 3, wherein the recipient light module is a master light module.

8. The method according to claim 7, wherein the master light module controls a plurality of slave light modules.

9. The method according to claim 8, wherein the master light module is in direct communication with other master light modules.

10. The method according to claim 1, wherein the recipient light module includes a controller and a plurality of light elements.

11. The method according to claim 10, wherein the plurality of light elements provide at least at least two light colors.

12. The method according to claim 1, wherein the recipient light module includes a power regulator.

13. The method according to claim 1, wherein the recipient light module is an LED module.

2. A method of identifying the location of a light module in a two dimensional array of light modules, comprising:

receiving, via a single data port of a plurality of data ports of a recipient light module, data representing at least the identity of a segment number and a column number of a source light module that is the source of the received data of the recipient light source module;

setting the column number for the recipient light module to the column number of the source light module and its segment number to the segment number of the source light module incremented by a first predetermined value if the data stream is received via a first data port of the recipient light source module;

setting the segment number for the recipient light module to the segment number of the source light module and a column number for the recipient light module to the column number of the source light module incremented by a second predetermined value if the data stream is received via a second data port of the recipient light source module;

setting the segment number for the recipient light module to the segment number of the source light module decremented by a third predetermined value and a column number for the recipient light module to the column number of the source light module if the data stream is received via a third data port of the recipient light source module; and

setting the column number for the recipient light module to the column number of the source light module decremented by a fourth predetermined value and a segment number for the recipient light module to the segment number of the source light module if the data stream is received via a fourth data port of the recipient light source module.

14. The method according to claim 2, wherein recipient light module includes one or more circuits that are communicatively coupled to the first data port, the second data port, the third data port, and the fourth data port, wherein the one or more circuits set the column number and the segment number for the recipient light module.

15. The method according to claim 14, wherein the one or more circuits include an enumeration state machine.

16. The method according to claim 14, wherein the one or more circuits include a packet processor that is operatively coupled to the enumeration state machine.

17. The method according to claim 14, wherein the one or more circuits are part of an FPGA.

18. The method according to claim 2, wherein the recipient light module is a master light module.

19. The method according to claim 18, wherein the master light module controls a plurality of slave light modules.

20. The method according to claim 19, wherein the master light module is in direct communication with other master light modules.

21. The method according to claim 2, wherein the recipient light module includes a controller and a plurality of light elements.

22. The method according to claim 21, wherein the plurality of light elements provide at least at least two light colors.

23. The method according to claim 2, wherein the recipient light module includes a power regulator.

24. The method according to claim 2, wherein the recipient light module is an LED module.

25. A method of identifying the location of a light module in a two dimensional array of light modules, comprising:

receiving, via a single data port of a plurality of data ports of a recipient light module, data representing at least the identity of a segment number and a row number of a source light module that is the source of the received data of the recipient light source module;

setting the row number for the recipient light module to the row number of the source light module and its segment number to the segment number of the source light module incremented by a first predetermined value if the data stream is received via a first data port of the recipient light source module;

setting the segment number for the recipient light module to the segment number of the source light module and a row number for the recipient light module to the row number of the source light module incremented by a second predetermined value if the data stream is received via a second data port of the recipient light source module;

setting the segment number for the recipient light module to the segment number of the source light module decremented by a third predetermined value and a row number for the recipient light module to the row number of the source light module if the data stream is received via a third data port of the recipient light source module; and

setting the row number for the recipient light module to the row number of the source light module decremented by a fourth predetermined value and a segment number for the recipient light module to the segment number of the source light module if the data stream is received via a fourth data port of the recipient light source module.

26. The method according to claim 25, wherein recipient light module includes one or more circuits that are communicatively coupled to the first data port, the second data port, the third data port, and the fourth data port, wherein the one or more circuits set the row number and the segment number for the recipient light module.

27. The method according to claim 26, wherein the one or more circuits include an enumeration state machine.

28. The method according to claim 26, wherein the one or more circuits include a packet processor that is operatively coupled to the enumeration state machine.

29. The method according to claim 26, wherein the one or more circuits are part of an FPGA.

30. The method according to claim 25, wherein the recipient light module is a master light module.

31. The method according to claim 30, wherein the master light module controls a plurality of slave light modules.

32. The method according to claim 31, wherein the master light module is in direct communication with other master light modules.

33. The method according to claim 25, wherein the recipient light module includes a controller and a plurality of light elements.

34. The method according to claim 33, wherein the plurality of light elements provide at least at least two light colors.

35. The method according to claim 25, wherein the recipient light module includes a power regulator.

36. The method according to claim 25, wherein the recipient light module is an LED module.