Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1980-01-31
1981-07-07
Martin, John C.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358229, H04N 718
Patent
active
042778042
ABSTRACT:
An undistorted view of regions rearward of a vehicle such as a tractor-trailer is provided by a closed circuit television system wherein a television camera having a wide angle viewing capability is positioned at the rear of the vehicle at an effective viewing elevation between about 20% and 70% of the total height of the vehicle. The camera is protected against debilitating factors by a protective enclosure which occupies minimal space and affords secure attachment to said vehicle by virtue of a mounting wherein the axis of said camera lens is horizontally disposed in a plane perpendicular to the longitudinal axis of said vehicle. A mirror associated with said camera lens at a 45 degree angle thereto serves the two-fold purpose of permitting the desired mode of mounting of said enclosure, and reversing the image presented to said camera.
The camera is connected by means of electrical wires to a television receiver positioned within easy view of the driver of the vehicle.
REFERENCES:
patent: 3689695 (1972-09-01), Rosenfield
"Electronic Whiz Kids Display Better Ideas for Building Cars", Mason-Electronic Design 20, Sep. 28, 1972, pp. 38 and 40, 358-393.
Martin John C.
Masinick Michael A.
Rainer Norman B.
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