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Proceedings Paper

Digital video interfaces for high-resolution imaging sensors and displays
Author(s): Stephen J. Fenley
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Paper Abstract

This paper will cover some of the same ground that was presented in a paper by Peterson. It discussed transmitting video information over a digital video interface to support a number of displays which included a 1024 X 768 pixel display updated at 60 Hz. The paper indicated that a minimum bit rate of 1.465E+09 bits/sec was required to meet 8 bit gray shade performance and a number of other design constraints. What will be different in this paper is how some existing digital video standards can be hardened for use in an avionics application (imaging sensors and display interfaces) and how this interface can be converted back into the commercial standard. Converting into a commercial standard is a significant requirement for lab testing and instrumentation such as recording. One specific example is the use of SMPTE 292M as the basis for a sensor video interface. This commercial standard supports high definition TV (HDTV) formats. This includes resolutions ranging from a 1920 X 1080 format interlaced into 30 Hz frames to a 1280 X 720 non-interlaced format with 60 Hz frames. Based upon the Boeing Company's experience with signals similar to SMPTE 292M (e.g. Fiber Channel), hardening (without modifications) to meet the avionics environment would be difficult if not impractical. The compatibility needs to address both emissions so video signals do not interfere with sensitive radio receivers and susceptibility so as emitters do not interfere with piloting and targeting display information on the aircraft. The SMPTE 292M interface can share a bit rate that is similar to the previously mentioned bit. The data format will differ between the sensor and display. Boeing plans to implement both the display and the sensor interface, and will define these as interface standards.

Paper Details

Date Published: 28 August 2000
PDF: 12 pages
Proc. SPIE 4022, Cockpit Displays VII: Displays for Defense Applications, (28 August 2000); doi: 10.1117/12.397778
Show Author Affiliations
Stephen J. Fenley, The Boeing Co. (United States)

Published in SPIE Proceedings Vol. 4022:
Cockpit Displays VII: Displays for Defense Applications
Darrel G. Hopper, Editor(s)

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