Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1988-08-19
1989-09-19
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 93, 358107, H04N 718
Patent
active
048686484
ABSTRACT:
A system for inspecting a pipeline in order to determine eccentricity thereof comprises the steps of directing a beam from one end of the pipeline to the other end, disposing a detecting means, which is provided with a light receiving body having a light receiving surface for receiving the beam and a television camera for taking a picture of the light receiving body, in the pipeline so as to be moved along the axis of the pipeline, processing an output signal of the television camera while maintaining the position of the light receiving body to have a predetermined relationship to the inner surface of the pipeline and determining whether or not the pipeline is eccentric on the basis of the result of said processing step.
REFERENCES:
patent: 3783189 (1974-01-01), Nelson
patent: 4616258 (1986-10-01), Ono et al.
patent: 4654702 (1987-03-01), Tolino et al.
Groody James J.
Kabushiki Kaisha Iseki Kaihatsu Koki
Kostak Victor R.
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