Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1986-11-04
1987-12-01
Britton, Howard W.
Facsimile and static presentation processing
Static presentation processing
Attribute control
128 4, 128 6, H04N 718
Patent
active
047108070
ABSTRACT:
In an electronic endoscope apparatus, image signals from a solid state image pickup device are converted into television picture signals, and pictures are displayed on a monitor television on the basis of the television picture signals. At least one chopper is arranged between a light source and an end of an optical system for transmitting an illuminating light from the light source to an illuminating window of an endoscope. The chopper is rotated by a motor to bring the illuminating light into the form of pulses. Rotation of the chopper is controlled in such a manner that a center of supply time duration of each illuminating light pulse is brought into coincidence with a point of time at which the image signals to be offered to either one of odd and even field scannings are transferred from a light receiving portion to a memory portion of the image pickup device.
REFERENCES:
patent: 3166623 (1965-01-01), Waidelich, Jr.
patent: 3525332 (1970-08-01), Kosaka
patent: 4233650 (1980-11-01), Hagner et al.
patent: 4621284 (1986-11-01), Nishioka
patent: 4631582 (1986-12-01), Nagasaki et al.
patent: 4653478 (1987-03-01), Nagasaki et al.
Britton Howard W.
Kabushiki Kaisha Machida Seisakusho
Peng John K.
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