SOLID STATE IMAGE PICKUP DEVICE AND ITS DRIVING METHOD
PROBLEM TO BE SOLVED: To provide a solid state image pickup device capable of reading pixel signals at a high speed without influences of a parasitic capacitance of a wiring for a pixel power supply.SOLUTION: The image pickup device comprises an image pickup part 1, in which pixel cells 2 outputting...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a solid state image pickup device capable of reading pixel signals at a high speed without influences of a parasitic capacitance of a wiring for a pixel power supply.SOLUTION: The image pickup device comprises an image pickup part 1, in which pixel cells 2 outputting signals corresponding to a light reception amount are aligned two-dimensionally; a row selection circuit 3 for selecting the pixel cells by a row unit; and a column circuit 7 for reading the signals output from the pixel cells selected by the row selection circuit 3 via a vertical signal line 19 for every column of the pixel cells 2. The column circuit 7 comprises a pixel power supply circuit 4 for supplying a current to the pixel cells 2 selected by the row selection circuit 3 via the vertical signal line 19 for every column of the pixel cells 2 when reading the signals. The row selection circuit 3 switches between selection of the pixel cells of a first row and simultaneous selection of the pixel cells 2 in the first row and the pixel cells 2 in a second row, during a period for reading the signals from the pixel cells 2 in one row. |
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