Enumeration system and method for a led display

• US 20090146917A1
• Filed: 12/11/2007
• Published: 06/11/2009
• Est. Priority Date: 12/11/2007
• Status: Active Grant

• Current Assignee: ADTI Media LLC
• Original Assignee: ADTI Media LLC
• Inventors: Kharrati, Hamid, Sefton, Robert J.
• Granted Patent: US 8,766,880 B2
• Time in Patent Office: Days
• 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 light module for use in a display having a two dimensional array of light modules, the light module comprising:

a module housing;

a plurality of color light elements mounted in the housing;

at least three bidirectional data ports;

a controller within the module housing and coupled to each of the data ports, the controller identifying the location of the light module in the two dimensional display in response to data received via a data port and the identity of the data port receiving the data.

2. A light module as recited in claim 1 wherein the data received by a recipient light module includes data representing the identity of a row number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes a plurality of data ports, the recipient light module identifying its location in the display by setting its column number to the column number of the source light module and its row number to the row number of the source light module incremented by a predetermined value if the data stream is received via one of the data ports.

3. A light module as recited in claim 1 wherein the data received by a recipient light module includes data representing the identity of a row number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes a plurality of data ports, the recipient light module identifying its location in the display by setting its row number to the row number of the source light module and its column number to the column number of the source light module incremented by a predetermined value if the data stream is received via one of the data ports.

4. A light module as recited in claim 1 wherein the data received by a recipient light module includes data representing the identity of a row number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes a plurality of data ports, the recipient light module identifying its location in the display by setting its row number to the row number of the source light module decremented by a predetermined value and its column number to the column number of the source light module if the data stream is received via one of the data ports.

5. A light module as recited in claim 1 wherein the data received by a recipient light module includes data representing the identity of a row number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes a plurality of data ports, the recipient light module identifying its location in the display by setting its column number to the column number of the source light module decremented by a predetermined value and its row number to the row number of the source light module if the data stream is received via one of the data ports.

6. A light module as recited in claim 1 wherein the data received by a recipient light module includes data representing the identity of a row number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes at least a first data port, a second data port, a third data port and a fourth data port, the recipient light module identifying its location in the display by:

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

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

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

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

7. A light module as recited in claim 1 wherein the controller extracts data associated with its identified location from a data stream received via at least one of its data ports.

8. A light module as recited in claim 7 wherein the controller outputs at least the portion of the received data stream directed to other light modules on at least two data ports other than the data port receiving the data stream from which the data was extracted.

9. A light module as recited in claim 1 wherein the light elements are LEDs, the data ports include a first data port, a second data port, a third data port and a fourth data port and further including a circuit coupled to the controller for controlling the intensities of the LEDs of the light module in accordance with data from a data stream received on the first data port, the controller outputting at least a portion of the received data stream on the second, third and fourth data ports.

10. A light module as recited in claim 9 wherein the controller is responsive to status information received from one or more other light modules on the second, third and/or fourth data ports to output the received status message on the first data port.

11. A light module for use in a display having a two dimensional array of light modules, a first group of the light modules comprising:

a module housing;

a plurality of colored light elements mounted in the housing;

at least three bidirectional data ports;

a controller within the module housing and coupled to each of the data ports, the controller identifying a column number and a row number of the light module in the two dimensional display in response to data received via a data port and the identity of the data port receiving the data.

12. A light module for use in a display having a two dimensional array of light modules, a first group of the light modules comprising:

a module housing;

a plurality of colored light elements mounted in the housing;

at least three bidirectional data ports;

a controller within the module housing and coupled to each of the data ports, the controller identifying a column number and a segment number of the light module in the two dimensional display in response to data received via a data port and the identity of the data port receiving the data.

13. A light module as recited in claim 12 wherein the data received by a recipient light module includes data representing the identity of a segment number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes a plurality of data ports, the recipient light module identifying its column number and segment number by setting its column number 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 predetermined value if the data stream is received via one of the data ports.

14. A light module as recited in claim 12 wherein the data received by a recipient light module includes data representing the identity of a segment number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes a plurality of data ports, the recipient light module identifying its column number and segment number by setting its segment number to the segment number of the source light module and its column number to the column number of the source light module incremented by a predetermined value if the data stream is received via one of the data ports.

15. A light module as recited in claim 12 wherein the data received by a recipient light module includes data representing the identity of a segment number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes a plurality of data ports, the recipient light module identifying its column number and segment number by setting its segment number to the segment number of the source light module decremented by a predetermined value and its column number to the column number of the source light module if the data stream is received via one of the data ports.

16. A light module as recited in claim 12 wherein the data received by a recipient light module includes data representing the identity of a segment number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes a plurality of data ports, the recipient light module identifying its column number and segment number by setting its column number to the column number of the source light module decremented by a predetermined value and its segment number to the segment number of the source light module if the data stream is received via one of the data ports.

17. A light module as recited in claim 12 wherein the data received by a recipient light module includes data representing the identity of a segment number and a column number of a source light module that is the source of the data received by a recipient light module and the recipient light module includes at least a first data port, a second data port, a third data port and a fourth data port, the recipient light module identifying its position in the display by:

setting its column number 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 predetermined value if the data stream is received via the first data port;

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

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

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

18. A light module as recited in claim 12 wherein the display includes a second group of light modules each having a module housing and a plurality of color light elements mounted in the housing wherein a plurality of the light modules of the second set are coupled to an associated one of the light modules of the first group to receive data therefrom.

19. A light module as recited in claim 12 further including a second group of light modules and wherein a segment includes one light module from the first group and a plurality of light modules from the second group wherein the light modules of the second group each have a module housing and a plurality of color light elements mounted in the housing, the light elements being controlled with data received from the light module in the segment that is from the first group.

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

receiving, in a recipient light source, data representing the identity of a row number and a column number of a source light module that is the source of the received data; and

setting a column number for the recipient light source to the column number of the source light module and its row number to the row number of the source light module incremented by a predetermined value if the data stream is received via one of a plurality of data ports.

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

receiving, in a recipient light source, data representing the identify of a row number and a column number of a source light module that is the source of the received data; and

setting a row number for the recipient light source to the row number of the source light module and its column number to the column number of the source light module incremented by a predetermined value if the data stream is received via one of a plurality of data ports.

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

receiving, in a recipient light source, data representing the identify of a row number and a column number of a source light module that is the source of the received data; and

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

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

receiving, in a recipient light source, data representing the identify of a row number and a column number of a source light module that is the source of the received data; and

setting its column number to the column number of the source light module decremented by a predetermined value and its row number to the row number of the source light module if the data stream is received via one of a plurality of data ports.

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

receiving, in a recipient light source, data representing the identify of a row number and a column number of a source light module that is the source of the received data;

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

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

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

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

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

receiving, in a recipient light source, data representing the identify of a segment number and a column number of a source light module that is the source of the received data; and

setting a column number for the recipient light source 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 predetermined value if the data stream is received via one of a plurality of data ports.

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

receiving, in a recipient light source, data representing the identify of a segment number and a column number of a source light module that is the source of the received data; and

setting a segment number for the recipient light source to the segment number of the source light module and its column number to the column number of the source light module incremented by a predetermined value if the data stream is received via one of a plurality of data ports.

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

receiving, in a recipient light source, data representing the identify of a segment number and a column number of a source light module that is the source of the received data; and

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

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

receiving, in a recipient light source, data representing the identify of a segment number and a column number of a source light module that is the source of the received data; and

setting its column number to the column number of the source light module decremented by a predetermined value and its segment number to the segment number of the source light module if the data stream is received via one of a plurality of data ports.

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

receiving, in a recipient light source, data representing the identify of a segment number and a column number of a source light module that is the source of the received data; and

setting a column number for the recipient light source 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 predetermined value if the data stream is received via a first data port;

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

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

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