FIELD OF THE INVENTION
The invention is an electronic Circuitry which interfaces the various modules
together, most importantly it interfaces/ processes the analog Video Signal.
BACKGROUND OF THE INVENTION
Requirement of Designing a New Back Plane Layout came from the requirement
of the storage of Aircraft video data such as Cockpit Video, Videos/ continuous
images coming from other systems in an single system which are very important
for the post crash analysis of the Aircraft. Earlier Audio and Flight Data only
have been used for the post crash analysis, now the use of video for the Crash
analysis definitely makes it easier to find out the fault.
SUMMARY OF PRESENT INVENTION
In accordance with one aspect of present invention, is to provide an interface for
Analog Video Signal Processing.
In accordance with second aspect of present invention, is to provide a back plane
which connects various Modules together such as Crash Protected Memory
Module along with Video , audio and CPU card which makes the use of different
flight, Audio and Video data transfer media with certain protocol (i.e. ARINC
717, ARINC 818) Redundant.
In accordance with another aspect of present invention, is to be used for the
Recording of processed Video Signal in the crash protected memory module
which enable the post crash analysis more thorough and comprehensive.
Recording of processed video data is more effective because both the crash
protected memory module and video cards are being connected to the common
backplane, which makes the use of video data transfer media with certain
protocol redundant.
In accordance with yet another aspect of present invention, is that this backplane
not only accommodate the Analog video signals coming from camera or other
system rather it is also providing the interfacing of Flight and Audio Data coming
from sensors or other systems Via some data transfer media with certain protocol
like ARINC 717. It also provide the path for o/p analog video signal for Display.
BRIEF DESCRIPTION OF THE DRAWINGS
Detailed description would be more apprehensive along with the available
figures.
Fig. 1 is a Diagram which shows the interfaces of various types of signals such
as Video, audio and Flight Data to the Back Plane .
Fig. 2 is giving a Visual Idea of the Connectors such as circular, DB connector ,
Harwin connector along with the positions of DC-DC convertors.
Fig. 3 is a block diagram which is explaining the flow of signals along with their
interaction between two different cards and storage to Crash Protected Memory
Module(CPMM).
DETAILED DESCRIPTION
The analog video signals are coming from various sources. These Sources
consist of cameras and systems present in aircraft such as mission computer,
Digital map generator and Multifunctional display. These Signals are interfaced to
different cards such as Video, audio and CPU card via Back Plane. Processed
analog video and audio signals are then stored in the crash protected memory
module which is interfaced with the cards via back plane. All Input signals are
interfaced to different cards via 128 pin circular connector which is further
connected to 2 sets of 44 pin DB connectors. Back Plane also incorporate two
DC- DC convertors to provide 5V , 3.3V and 1.8 V voltage Supply to all the
Cards. DB connectors are interfaced further to one 122 pin and two 80 pin
airborne connector, where 122 pin airborne connector is used for video card
interfacing and other two 80 pin airborne connectors are used for CPU and Audio
card. Through these connectors Video , Audio and CPU cards are connected to
each other via Backplane. Once the Analog Video and Audio signals are
processed by Video and Audio Card, the processed Video and Audio data is
stored to CPMM ( Crash Protected Memory Module) with the intervention of CPU
Card as shown in Fig. 3.

WE CLAIMS:-
Accordingly, the description of the present invention is to be considered as illustrative only and is for the purpose of teaching those skilled in the art of the best mode of carrying out the invention. The details may be varied substantially without departing from the spirit of the invention, and exclusive use of all modifications which are within the scope of the appended claims is reserved. We Claim

1. Interfacing/ Processing of RGB (Component Video) and Y/C (S-Video) Video Signals via a backplane.
2. Interfacing of different video, audio and CPU card with Crash Protected memory Module (CPMM) via Backplane.
3. Audio and Video Signal Replay of the acquired analog audio and video Signal.
4. Storage of Audio, Video and Flight Data together in a Crash Protected Memory Module (CPMM). ,TagSPECI:As per Annexure-II