IMAGE SENSOR, IMAGING SYSTEM, AND IMAGE SENSOR CONTROL METHOD

IMAGE SENSOR, IMAGING SYSTEM, AND IMAGE SENSOR CONTROL METHOD

PROBLEM TO BE SOLVED: To reduce flicker noise even if the number of pixels in a pixel array is increased. SOLUTION: An image sensor includes a pixel array and a control unit 220. In the pixel array, a plurality of pixels P211 are arrayed in a row direction and a column direction, each of the pixels...

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Hauptverfasser: UMIBE NORIYUKI, TASHIRO KAZUAKI
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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TASHIRO KAZUAKI
description PROBLEM TO BE SOLVED: To reduce flicker noise even if the number of pixels in a pixel array is increased. SOLUTION: An image sensor includes a pixel array and a control unit 220. In the pixel array, a plurality of pixels P211 are arrayed in a row direction and a column direction, each of the pixels P211 being brought into a selected state when an electric potential of a charge-voltage converter 207 is between a first electric potential and a second electric potential, and being brought into a non-selected state when the electric potential of the charge-voltage converter 207 is a third electric potential. The control unit 220 performs, in a first period, a control operation of an electric potential of a signal line 8-1 to turn off a MOS transistor 232 while the electric potential of the charge-voltage converter 207 of the pixels brought into the selected state is maintained at an electric potential of the selected state, and performs, in a second period subsequent to the first period, a control operation of the electric potential of the signal line 8-1 to turn on the MOS transistor 232 while the electric potential of the charge-voltage converter 207 of the pixels brought into in the selected state is maintained at an electric potential of the selected state. COPYRIGHT: (C)2010,JPO&INPIT
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title IMAGE SENSOR, IMAGING SYSTEM, AND IMAGE SENSOR CONTROL METHOD
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