Solid-state imaging device and driving method of solid-state imaging device, and electronic equipment
First Claim
1. A solid-state imaging device comprising:
- a first substrate including;
a pixel array unit including a plurality of pixels, anda plurality of vias on a periphery of the first substrate; and
a second substrate including;
signal processing circuitry including an AD converter configured to digitize an analog pixel signal read from respective ones of the plurality of pixels through corresponding ones of the plurality of vias, the signal processing circuitry configured to transfer digitized pixel data at a first speed higher than a frame rate;
a memory configured to store the pixel data transferred from the signal processing circuitry;
data processing circuitry configured to read pixel data at a second speed lower than the first speed from the memory; and
control circuitry configured to, when the pixel data is read from the memory unit, stop operation of a current source connected with the signal line and operation of at least the AD converter of the signal processing circuitry.
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Abstract
The solid-state imaging device of the present disclosure includes a signal processing unit including an AD converter that digitizes an analog pixel signal read from each pixel of the pixel array unit to a signal line, the signal processing unit transferring digitized pixel data at a first speed higher than a frame rate; a memory unit that stores the pixel data transferred from the signal processing unit; a data processing unit that reads pixel data at a second speed lower than the first speed from the memory unit; and a control unit that, when the pixel data is read from the memory unit, controls to stop operation of a current source connected with the signal line and operation of at least the AD converter of the signal processing unit.
26 Citations
20 Claims
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1. A solid-state imaging device comprising:
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a first substrate including; a pixel array unit including a plurality of pixels, and a plurality of vias on a periphery of the first substrate; and a second substrate including; signal processing circuitry including an AD converter configured to digitize an analog pixel signal read from respective ones of the plurality of pixels through corresponding ones of the plurality of vias, the signal processing circuitry configured to transfer digitized pixel data at a first speed higher than a frame rate; a memory configured to store the pixel data transferred from the signal processing circuitry; data processing circuitry configured to read pixel data at a second speed lower than the first speed from the memory; and control circuitry configured to, when the pixel data is read from the memory unit, stop operation of a current source connected with the signal line and operation of at least the AD converter of the signal processing circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A driving method of a solid-state imaging device, the method comprising,
in driving the solid-state imaging device including: -
a first substrate including; a pixel array unit including a plurality of pixels, and a plurality of vias on a periphery of the first substrate; and a second substrate including; signal processing circuitry including an AD converter configured to digitize an analog pixel signal read from respective ones of the plurality of pixels through corresponding ones of the plurality of vias, the signal processing circuitry configured to transfer digitized pixel data at a first speed higher than a frame rate; a memory configured to store the pixel data transferred from the signal processing circuitry; and data processing circuitry configured to read pixel data at a second speed lower than the first speed from the memory, when reading the pixel data from the memory, performing driving to stop operation of a current source connected with the signal line and operation of at least the AD converter of the signal processing circuitry.
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18. Electronic equipment comprising a solid-state imaging device comprising:
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a signal processing unit including an AD converter that digitizes an analog pixel signal read from each pixel of a pixel array unit to a signal line, the signal processing unit transferring digitized pixel data at a first speed higher than a frame rate; a memory unit that stores the pixel data transferred from the signal processing unit; a data processing unit that reads pixel data at a second speed lower than the first speed from the memory unit; and a control unit that, when the pixel data is read from the memory unit, controls to stop operation of a current source connected with the signal line and operation of at least the AD converter of the signal processing unit.
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19. A solid-state imaging device comprising:
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a first substrate including; a pixel array unit including a plurality of pixels, and a plurality of first vias on a periphery of the first substrate; a second substrate including; signal processing circuitry including an AD converter configured to digitize an analog pixel signal read from respective ones of the plurality of pixels through corresponding ones of the plurality of first vias, the signal processing circuitry configured to transfer digitized pixel data at a first speed higher than a frame rate, and control circuitry; and a third substrate including; a memory configured to store the pixel data transferred from the signal processing circuitry, and data processing circuitry configured to read pixel data at a second speed lower than the first speed from the memory, wherein the control circuitry is configured to, when the pixel data is read from the memory unit, stop operation of a current source connected with the signal line and operation of at least the AD converter of the signal processing circuitry. - View Dependent Claims (20)
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Specification