Solid state image pickup device and camera
AssigneeCanon Kabushiki Kaisha
InventorsTomohisa Kinugasa, Hidekazu Takahashi
Life of this patent
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Abstract
A solid-state image pickup device wherein, in order to obtain an output of large amplitude from a low-contrast object without using a bottom detecting circuit to thereby increase a capturing rate, an accumulation end is determined when a maximum value signal in a photosensor array reaches a predetermined accumulation end level, and an amplifier circuit unit is provided for amplifying a signal, which is outputted from each of the pixels of the photosensor array, with reference to the maximum value signal of the photosensor array and for outputting the signal.
Claims2
A solid state image pickup device, comprising:
- a photosensor array;
- a control unit for determining accumulation end of photocarrier of the photosensor array when a maximum value signal among signals outputted from pixels of the photosensor array reaches a predetermined voltage;
- and
- an amplifier circuit unit for amplifying a signal, which is outputted from each of the pixels of the photosensor array, with reference to the maximum value signal and for outputting the signal.
2-8. (canceled)
Dependencies are inferred from the claim text.