IMAGING DEVICE
First Claim
1. An imaging device having:
- pixels being disposed two-dimensionally, in matrix, and having a photoelectric conversion part converting a light into an electric signal;
a plurality of vertical signal lines each coupled to a plurality of the pixels in a column direction and receiving an optical signal containing optical information and a reset signal containing a noise component from the pixels;
a column amplifier amplifying the optical signal and the reset signal read to each of the vertical signal lines; and
a holding part holding each of the optical signal and the reset signal amplified in the column amplifier, the imaging device comprising;
a first clip driving circuit being disposed between each of the vertical signal lines and the column amplifier and clips a signal out of a predetermined voltage;
a first clip voltage generation circuit giving a clip voltage to the first clip driving circuit;
a second clip driving circuit being disposed between the column amplifier and the holding part and clips a signal out of a predetermined voltage; and
a second clip voltage generation circuit giving a clip voltage to the second clip driving circuit.
1 Assignment
0 Petitions
Accused Products
Abstract
An imaging device has pixels being disposed two-dimensionally, in matrix, a plurality of vertical signal lines each coupled to a plurality of the pixels in a column direction, a column amplifier amplifying an optical signal and a reset signal, and a holding part holding each of the optical signal and the reset signal. The imaging device is provided with a first clip driving circuit which is disposed between the vertical signal lines and the column amplifier and clips a signal out of a predetermined voltage, a first clip voltage generation circuit which gives a clip voltage to the first clip driving circuit, a second clip driving circuit which is disposed between the column amplifier and the holding part and clips a signal out of a predetermined voltage, and a second clip voltage generation circuit which gives a clip voltage to the second clip driving circuit.
75 Citations
4 Claims
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1. An imaging device having:
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pixels being disposed two-dimensionally, in matrix, and having a photoelectric conversion part converting a light into an electric signal; a plurality of vertical signal lines each coupled to a plurality of the pixels in a column direction and receiving an optical signal containing optical information and a reset signal containing a noise component from the pixels; a column amplifier amplifying the optical signal and the reset signal read to each of the vertical signal lines; and a holding part holding each of the optical signal and the reset signal amplified in the column amplifier, the imaging device comprising; a first clip driving circuit being disposed between each of the vertical signal lines and the column amplifier and clips a signal out of a predetermined voltage; a first clip voltage generation circuit giving a clip voltage to the first clip driving circuit; a second clip driving circuit being disposed between the column amplifier and the holding part and clips a signal out of a predetermined voltage; and a second clip voltage generation circuit giving a clip voltage to the second clip driving circuit. - View Dependent Claims (2, 3, 4)
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Specification