Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1981-11-09
1984-01-31
Britton, Howard
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
376248, 376249, H04N 718
Patent
active
044293291
ABSTRACT:
A system for the remote visual inspection of a structure including two vessels, one disposed within the otherand defining an annulus therebetween. A guide member is provided circumferentially about an upper periphery of the two vessels. Mounted on the guide member are two motor-driven, diametrically opposed trolleys which support a flexible track member which extends downwardly through the annulus from one of the trolleys and back up the other side of the annulus to the other trolley. At least one motor-driven carrige is mounted on the track member and carries a camera and light source. By appropriate positioning of the trolleys and the carriage, all the surfaces of the vessels defining the annulus are accessible for visual inspection by the camera. In accordance with a particular preferred embodiment, markers are placed at preselected points in the annulus on one of the vessels to permit verification of the location of the camera and carriage. Advantageously, the markers are in the form of a preselected pattern to provide verification of the clarity of the image being transmitted by the camera. In accordance with another preferred embodiment, the system further includes means for recording signals received from the camera and simultaneously recording the position of the camera.
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Clemens Donald D.
Larson, Jr. Elmer M.
Morgan William T.
Steele, III Oliver P.
Wright Fred R.
Britton Howard
DeLarvin Clark E.
Electric Power Research Institute Inc.
Hamann H. Fredrick
Kolin Henry
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