High performance radar display

Details High performance radar display High performance radar display

2007-01-09

2007-01-09

Gregory, Bernarr E. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

Display

C342S175000, C342S181000, C342S185000, C342S195000, C342S197000

Reexamination Certificate

active

10969444

ABSTRACT:
A scan conversion is provided which allows the scan converter to work with data in its most convenient format in a radar memory. A displayable image is mirrored to a graphics memory simultaneously with the write portion of the radar memory of the scan conversion process. On every write to the radar memory, radar data is simultaneously converted to associated colors by indexing a color look-up table and writing the indexed color to the graphics memory. A simulated phosphor decay for the display is provided by decreasing the intensity of each pixel in the radar memory once each antenna scan and similarly decreasing the intensity of data in corresponding locations in the graphics memory to simulate the decay of a phosphor coated screen in a CRT display. The signals in the graphics memory are coupled to a display at a rate that simulates a display on a phosphor coated screen.

REFERENCES:
patent: 3412398 (1968-11-01), Schrader
patent: 3631483 (1971-12-01), Ruggles et al.
patent: 4412220 (1983-10-01), Aanstoot et al.
patent: 4660043 (1987-04-01), Lachaize et al.
patent: 4754279 (1988-06-01), Cribbs
patent: 7020434 (2006-03-01), Legan

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