Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1978-12-29
1980-03-18
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
H04N 718
Patent
active
041942183
ABSTRACT:
An inspection apparatus for underground channels such as sewer pipes and conduits for communication or electric cables and many other conduits for various utilities. The apparatus has a television camera which is adjustable in its position in accordance with the size of an underground channel, and a reversible motor which rotates V belts to advance and retract the apparatus in the underground channels. The television camera and the movement of the apparatus is controlled at a remote place.
REFERENCES:
patent: 3064077 (1962-11-01), Cary
patent: 3541248 (1970-11-01), Young
patent: 3715484 (1973-02-01), Latall
patent: 3739095 (1973-06-01), Alden
patent: 3761623 (1973-09-01), Hara
patent: 3885091 (1975-05-01), Fish
patent: 3958080 (1976-05-01), Schadler
patent: 3984627 (1976-10-01), Galerne
patent: 4107738 (1978-08-01), Van Norman
Britton Howard W.
Kabushiki Kaisha Kantool
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