Image pickup apparatus having a common amplifier
AssigneeCanon Kabushiki Kaisha
InventorTetsunobu Kochi
Life of this patent
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Abstract
To implement a solid-state image pickup element in which the peripheral circuit is downsized, there is provided a solid-state image pickup element including a plurality of pixel blocks each having a plurality of photoelectric conversion elements, a plurality of transfer switches each having one terminal connected to a corresponding photoelectric conversion element, a signal input portion commonly connected to the other terminal of each of the plurality of transfer switches, and an amplifier connected to the signal input portion, and a scanning circuit for outputting a scanning clock for each pixel block.
Claims11
A solid-state image pickup element comprising:
- a plurality of pixel blocks each having a plurality of photoelectric conversion elements, a plurality of transfer switches for transferring signals from said respective photoelectric conversion elements, and a common amplifier for receiving signals from said plurality of transfer switches;
- a scanning circuit for outputting a scanning clock for each pixel block;
- and
- an operation processing circuit for receiving a plurality of transfer clocks corresponding to said plurality of transfer switches in said pixel block, for performing operation processing for the scanning clock output from said scanning circuit and the plurality of transfer clocks, and for supplying processed signals as clocks for driving said plurality of transfer switches.
A solid-state image pickup element comprising:
- a plurality of pixel blocks each having a plurality of photoelectric conversion elements, a plurality of transfer switches for transferring signals from said respective photoelectric conversion elements, and a common amplifier for receiving signals from said plurality of transfer switches;
- a scanning circuit for outputting a scanning clock for each pixel block;
- a reset switch arranged in each pixel block to reset a signal input portion;
- and
- an operation processing circuit for receiving a reset clock input, for performing arithmetic processing for the scanning clock and the reset clock input, and for supplying a processed signal as a clock for driving said reset switch.
A solid-state image pickup element comprising:
- a plurality of pixel blocks each having a plurality of photoelectric conversion elements, a plurality of transfer switches for transferring signals from said respective photoelectric conversion elements, and a common amplifier for receiving signals from said plurality of transfer switches;
- a scanning circuit for outputting a scanning clock for each pixel block;
- a selection switch arranged in each pixel block to select said pixel block;
- and
- an operation processing circuit for receiving a selection clock input, for performing arithmetic processing for the scanning clock and the selection clock input, and for supplying a processed signal as a clock for driving said selection switch.
Dependencies are inferred from the claim text.