Solid-state imaging apparatus and camera system
AssigneeCanon Kabushiki Kaisha
InventorTomohisa Kinugasa
Life of this patent
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Abstract
A solid-state imaging apparatus has a plurality of read out circuits (128) reading out pixel output signals from pixels in a pixel region, a common signal output line (123) connected to the plurality of read out circuits via switch units, a first load unit (124) connected to the signal output line and a positive power source, a second load unit (125) connected to the signal output line and a ground power source, a maximum value output unit outputting a maximum value of a plurality of pixel signals input to the read out circuits, a minimum value output unit outputting a minimum value of a plurality of pixel signals input to the read out circuits, and a switching unit switching output of the maximum value output unit and output of the minimum value output unit during a pixel signal accumulation period.
Claims8
A solid-state imaging apparatus comprising:
- a plurality of photoelectric conversion units;
- a plurality of read out circuits arranged correspondingly to each of the plurality of photoelectric conversion units, wherein each of the plurality of read out circuits includes a maximum value output unit for outputting a maximum value among a plurality of pixel signals input to the readout circuits from the corresponding photoelectric conversion units, and a minimum value output unit for outputting a minimum value among a plurality of pixel signals input to the readout circuits from the corresponding photoelectric conversion units;
- a signal output line connected commonly to outputs of the plurality of read out circuits;
- and
- a switching unit for switching between an output from the maximum value output unit and an output from the minimum value output unit, during a period of accumulating a pixel signal.
Dependencies are inferred from the claim text.