Moving map display using optical tunnel

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

340995, 364443, 364460, H04N 718

Patent

active

044994915

ABSTRACT:
A moving map display is provided to represent the location of a vehicle such as an aircraft on a video display of a map. Map images are scanned by a remote pickup unit (40) using flying spot scanning techniques to scan transparencies (51) of sections of the map. In order to increase the resolution of map images, each transparency (51) is divided into a plurality of sections and an image of the flying spot from a CRT (45) is superimposed simultaneously onto the nine sections, using an optical tunnel. In order to scan only the desired portions of these images and in order to produce a coherent display, the images are selectively gated "on", electronically or by using light shuttering techniques. In the preferred embodiment, four of a group of nine images are used to create a given display, although other combinations are possible.
The resultant display is a composite video modulated raster derived from the scanned images on the slide (51). Advantages include the ability to replace individual slides (51) when a section of the map must be updated, and an ability to accomplish positional accuracy which is not dependent upon exact dimensions of a large map area reproduced onto film, and retain full CRT resolution.

REFERENCES:
patent: 2552464 (1951-05-01), Siezen
patent: 3366959 (1968-01-01), Roberts
patent: 3523183 (1970-08-01), Silverman
patent: 4061995 (1977-12-01), McCrickerd
patent: 4070662 (1978-01-01), Narveson
patent: 4138726 (1979-02-01), Girault
patent: 4152722 (1979-05-01), Inuiya
patent: 4240108 (1980-12-01), Levy
patent: 4360876 (1982-11-01), Girault
patent: 4380776 (1983-04-01), Smith
patent: 4384338 (1983-05-01), Bennett
patent: 4400727 (1983-08-01), Aron
patent: 4415934 (1983-11-01), Konishi
patent: 4418360 (1983-11-01), Glasgow
Krolak, "The Optical Tunnel--A Versatile Electrooptical Tool", Journal of the SMPTE, vol. 72, Mar. 1963.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Moving map display using optical tunnel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Moving map display using optical tunnel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moving map display using optical tunnel will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1392673

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.