Collective charge reading and injection in random access charge

Details Collective charge reading and injection in random access charge Collective charge reading and injection in random access charge

1996-01-26

1998-02-10

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

348308, 348306, H04N 5335

Patent

active

057171998

ABSTRACT:
Random access charge transfer devices are provided in which it is possible to simultaneously read electric charge that is stored within each detection element (pixel) that is in one of any desired combination of columns and that is also in one of any desired combination of rows. It is also possible to simultaneously read electric charge stored within each detection element or pixel in at least one selected column or row. In addition, it is possible to simultaneously cause injection of some or all of the electric charge stored in each detection element in one of any desired combination of columns and also in one of any desired combination of rows, or to simultaneously cause injection of some or all of the electric charge stored in each detection element in at least one selected column or row. In certain embodiments, a plurality of pre-amplifiers are connected to the column or row electrodes of the charge transfer device, for simultaneously producing a plurality of outputs, each output corresponding to the electric charge stored within at least one detection element or pixel in a single column or row, and a summation amplifier is provided having a feedback loop that is connected into each of the pre-amplifiers.

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