Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1989-04-27
1990-10-30
Peng, John K.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358168, 358169, 128 6, H04N 718, H04N 557
Patent
active
049672690
ABSTRACT:
An endoscope automatic light control apparatus comprises an automatic light control apparatus for controlling the quantity of light incident to an imaging apparatus for imaging an endoscopic image so as to maintain a signal from the imaging apparatus substantially at a constant level. An automatic gaim control apparatus inputs a signal from the imaging apparatus and controls its output level so as to maintain the signal substantially at a constant level. The automatic light control apparatus and the automatic gain control apparatus respectively having a plurality of brightness information generating apparatuses generating brightness information based on the signal from the imaging apparatus. The plurality of brightness information generating apparatuses are different from each other in a method of generating brightness information and one of the plurality of brightness information generating apparatuses able to be selected. A selecting apparatus selects the brightness generating apparatus of the same method as the automatic light control apparatus and as the automatic gain control apparatus. The automatic light control apparatus controls the quantity of light based on the brightness information and the automatic gain control apparatus controls its output level based on the brightness information. The endoscope apparatus further comprises an endoscope unit having an insert section with an observation window and an image forming optical system, an imaging apparatus, a signal processing apparatus and an illuminating system.
REFERENCES:
patent: 4327738 (1982-05-01), Green et al.
patent: 4475539 (1984-10-01), Konomura
patent: 4532918 (1985-08-01), Wheeler
patent: 4535758 (1985-08-01), Longacre et al.
patent: 4621284 (1986-11-01), Nishioka et al.
patent: 4631582 (1986-12-01), Nagasaki et al.
patent: 4646724 (1987-03-01), Sato et al.
patent: 4755873 (1988-07-01), Kobayashi
patent: 4791480 (1988-12-01), Muranaka
Hasegawa Jun
Kanno Masahide
Nakagawa Takehiro
Saito Katsuyuki
Sasagawa Katsuyoshi
Olympus Optical Co,. Ltd.
Peng John K.
LandOfFree
Endoscope automatic light control apparatus and endoscope appara does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Endoscope automatic light control apparatus and endoscope appara, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Endoscope automatic light control apparatus and endoscope appara will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-278636