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Proceedings Paper

Advanced image manipulation controller for cockpit LCD displays
Author(s): Gopal Ramachandran
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Paper Abstract

Key features of a family of LSI integrated circuits will be explained. These DSP devices are capable of taking digital inputs of either NTSC/PAL/SECAM video in YCrCb 4:2:2 format, or computer graphics data from a PC in RGB 8:8:8 format, de- interlacing the data (if required), then re-sizing the resolution of the image independently in the horizontal and vertical axes to fit arbitrary display resolutions. The devices use patented digital filter techniques to perform zoom-only or both zoom as well as shrink. The devices also include registers that allow for cropping the active input image, and registers to completely control horizontal and vertical timing parameters for LCD displays. Current members of this family work at clock rates of up to 84 MHz, at resolutions of 1024 X 768, and upcoming members of the family will raise both the target resolution and pixel rates. All these parts generate all timing signals required by the display. Typically, no external memory is required for zooming and shrinking. Cockpit display applications that could benefit from this chip include processing and display of video, FLIR, EFIS/EICAS displays, radar, digital terrain maps, ultrasonic/sonar, computer graphics/symbol generators, etc. The devices are members of the gmZx family of scaling chips, first introduced in April '97.

Paper Details

Date Published: 14 September 1998
PDF: 9 pages
Proc. SPIE 3363, Cockpit Displays V: Displays for Defense Applications, (14 September 1998); doi: 10.1117/12.321772
Show Author Affiliations
Gopal Ramachandran, Genesis Microchip Corp. (United States)

Published in SPIE Proceedings Vol. 3363:
Cockpit Displays V: Displays for Defense Applications
Darrel G. Hopper, Editor(s)

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