Browse Prior Art Database

Visually fault tolerant digital signage system

IP.com Disclosure Number: IPCOM000179107D
Original Publication Date: 2009-Feb-06
Included in the Prior Art Database: 2009-Feb-06
Document File: 3 page(s) / 48K

Publishing Venue

IBM

Abstract

Disclosed is a system for digital signage application with fault tolerance capability. This makes the secure image display when host PC is crashed.

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Visually fault tolerant digital signage system
Figure 1 shows a conventional system of digital signage system.

Operating system(ex: MS-Windows*)

Display signage image

  電子看板 ディスプレイ

IBM e-server売出し中! 100万円!

OS Crash! 0x00000 0x00000

(fatal image
as digital signage)

 Display application

Personal computer

Conventional digital signage system has some problem that related S/W crash.

-When display application crashed, system display bare OS image or crush image.(①)

-Require additional cost to watch digital signage from Internet or private network(②)

* Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation in the United States, other countries, or both.

CPU

reset, restart

Graphic

Internet or private network

Management Function

Figure 1.

Figure 2. this disclosure is implemented in Graphics-chip.

flat panel display

Signage Image (ex: Add image)

Operating system(ex: MS-Windows*)

Display signage image

 Display application

Personal computer(PC)

CPU

notify heart- beat from application

notify operating system status

Graphic Chip

SEL

Switch

Image

Buffer

watch function

Image registration

Usually, a digital signage system shows signage image that is constructed by CPU and send to a flat panel display (①). The watch function(⑤) is watching system status and application status. When the watch system find system error or application error, the watch system acts to switching function "SEL"(④), and switch image from CPU to Image Buffer(②) and displays image to the flat palnel display (③). This prevents from showing operating system image or crash image to the flat panel display.

Figure 2.

Figure 3. this disclosure is implemented in descrete circuit.

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flat panel display

Signage Image (ex: Add image)

Operating system

Display signage image

 Display application

CPU

PC

GPU

notify heart- beat from application

notify operating system status

Switch circuit

SEL

Switch

Image buffer

②...