Television – Special applications – With endoscope
Reexamination Certificate
2004-06-22
2009-08-11
Czekaj, David (Department: 2621)
Television
Special applications
With endoscope
C348S069000
Reexamination Certificate
active
07573499
ABSTRACT:
A CCD driver circuit adjusts and supplies pulse-type signals to a CCD in order to adjust the sensitivity of the CCD. A metering circuit meters a signal output from the CCD. A sensitivity control circuit controls the sensitivity of the CCD by controlling the sensitivity multiplication factor of the CCD based on a metering result by the metering circuit. A metering correcting circuit corrects a metering result from the metering circuit based on a charge multiplication factor from the sensitivity control circuit. An aperture control circuit controls an aperture based on a metering signal corrected by the metering correcting circuit. Thus, an image of an object of which strength of light largely varies can be obtained as an image under a proper dimming state.
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Doguchi Nobuyuki
Hirao Isami
Imaizumi Katsuichi
Okawa Fumiyuki
Ozawa Takeshi
Czekaj David
Olympus Corporation
Scully , Scott, Murphy & Presser, P.C.
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