IP Library Granted Patent US 7,262,746
Granted Patent B2
US 7,262,746 · App. 10/385,035 · Granted Aug 28, 2007

Video wall

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Quick Facts
Patent No.
US 7,262,746
App. No.
10/385,035
Granted
Aug 28, 2007
Kind
B2
Abstract

A video wall ( 2 ) is formed of several adjacent displays ( 14 1 - 14 15 ). The display surfaces of the adjacent displays form a continuous or quasi-continuous display surface for the video wall. The wall has an input adapted for receiving images from multiplexed sources. The images from the multiplexed sources are demultiplexed in a demultiplexer ( 22 ). The demultiplexer provides images from the demultiplexed sources to processors ( 24 1 - 24 15 ) for display on the adjacent displays. Using multiplexed sources makes it possible to reduce the number of cables at the input to the wall or to increase the number of images that may simultaneously be displayed on the wall.

Claims (35)

1. A video wall, comprising:

at least two displays forming a continuous or quasi-continuous display surface,

at least one input adapted for receiving images from multiplexed sources, each one of the received images originating from an original source before being multiplexed,

at least one demultiplexer that is adapted to receive images from multiplexed sources and to output images from demultiplexed sources, and

the at least one demultiplexer being further adapted to make each image output from the demultiplexed sources available to both of the displays for display on the continuous or quasi-continuous display surface.

2. The video wall of claim 1 , wherein the demultiplexer is adapted to demultiplex images from time-multiplexed sources using TMDS protocol.

3. The video wall of claim 1 , further comprising a multiplexer having at least two inputs adapted for receiving images from at least two sources, the multiplexer being adapted for multiplexing images received on said inputs; a connection between the multiplexer and said at least one demultiplexer.

4. The video wall of claim 3 , wherein the multiplexer is adapted for time-multiplexing images received on said inputs using TMDS protocol.

5. The video wall of claim 3 , wherein the number of images per second for one source in the images from multiplexed sources is lower than the number of images per second for said source provided on said multiplexer input.

6. The video wall of claim 3 , wherein the video wall comprises one demultiplexer and wherein said demultiplexer is adapted to provide the images from demultiplexed sources to each of said displays.

7. The video wall of claim 3 , wherein each display in the video wall comprises a demultiplexer and a processor, and wherein a demultiplexer is adapted to the images from demultiplexed sources to the processor.

8. The video wall of claim 1 , wherein the video wall comprises one demultiplexer and wherein said demultiplexer is adapted to provide the images from demultiplexed sources to each of said displays.

9. The video wall of claim 1 , wherein each display in the video wall comprises a demultiplexer and a processor, and wherein a demultiplexer is adapted to the images from demultiplexed sources to the processor.

10. A process for displaying images on a video wall comprising at least two displays forming a continuous or quasi-continuous display surface, the process comprising:

providing at least two displays that form a continuous or quasi-continuous display surface,

receiving images from multiplexed sources, each one of the received images originating from an original source before being multiplexed,

demultiplexing the received images and outputting images from demultiplexed sources,

providing each one of the images output from the demultiplexed sources to all of the displays, and

displaying images from at least one of the demultiplexed sources on the continuous or quasi-continuous display surface formed by the at least two displays.

11. The process of claim 10 , wherein the step of demultiplexing comprises time-demultiplexing the received images using TMDS protocol.

12. The process of claim 10 , further comprising the steps of

receiving images from at least two sources;

multiplexing the images received from said sources; and

transmitting images from the multiplexed sources.

13. The process of claim 12 , wherein the step of multiplexing comprises time-multiplexing the images received from said sources using TMDS protocol.

14. The process of claim 13 , wherein the step of multiplexing further comprises reducing the number of images per second for at least one of said sources.

15. The process of claim 12 , wherein the wall comprises a single demultiplexer and wherein the step of demultiplexing comprises, at the demultiplexer, demultiplexing the received images and outputting images from demultiplexed sources to all displays in the wall.

16. The process of claim 12 wherein each display in the wall comprises a demultiplexer and wherein the step of demultiplexing comprises, at each demultiplexer, demultiplexing the received images and outputting images from demultiplexed sources.

17. The process of claim 10 , wherein the wall comprises a single demultiplexer and wherein the step of demultiplexing comprises, at the demultiplexer, demultiplexing the received images and outputting images from demultiplexed sources to all displays in the wall.

18. The process of claim 10 , wherein each display in the wall comprises a demultiplexer and wherein the step of demultiplexing comprises, at each demultiplexer, demultiplexing the received images and outputting images from demultiplexed sources.

19. A video wall, comprising:

at least two displays forming a continuous or quasi-continuous display surface,

at least one input adapted to receive images from multiplexed sources,

at least one demultiplexer that is adapted to receive images from multiplexed sources and that is adapted to output images from demultiplexed sources, each one of the received images originating from an original source before being multiplexed,

at least two image processors, each image processor being adapted to select images or parts of images among the various demultiplexed sources to be displayed by each display.

Assignments (4)
SECURITY INTEREST Recorded Jun 6, 2017
From: PLANAR SYSTEMS, INC.; NATURALPOINT, INC.; CLARITY, A DIVISION OF PLANAR SYSTEMS, INC.; PLANAR CHINA LLC; PLANAR TAIWAN LLC
To: SILICON VALLEY BANK
Reel/Frame 042616/0497 →
NUNC PRO TUNC ASSIGNMENT Recorded Dec 9, 2016
From: PLANAR SYSTEMS OY
To: PLANAR SYSTEMS, INC.
Reel/Frame 040702/0830 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2016
From: PLANAR SAS
To: PLANAR SYSTEMS OY
Reel/Frame 040878/0371 →
SECURITY AGREEMENT Recorded Dec 3, 2013
From: PLANAR SYSTEMS, INC.; CLARITY, A DIVISION OF PLANAR SYSTEMS, INC.; PLANAR CHINA, LLC; PLANAR TAIWAN LLC
To: SILICON VALLEY BANK
Reel/Frame 031763/0719 →