To improve the image quality of image data in a solid-state imaging device that reads a signal according to a potential difference between respective floating diffusion regions of a pair of pixels. A pixel unit is provided with a plurality of rows each including a plurality of pixels. A readout row selection unit selects any of the plurality of rows as a readout row every time a predetermined period elapses, and causes each of the plurality of pixels in the readout row to generate a signal potential according to a received light amount. A reference row selection unit selects a row different from a previous row from among the plurality of rows as a current reference row every time the predetermined period elapses, and causes each of the plurality of pixels in the reference row to generate a predetermined reference potential. A readout circuit unit reads a voltage signal according to a difference between the signal potential and the reference potential.

Disclosed is an image sensor including a first comparison circuit suitable for comparing an active pixel signal with a ramp signal to generate a first comparison signal through a first comparison output terminal, and a first compensation circuit coupled to the first comparison output terminal, and suitable for selectively applying a first compensation noise, which corresponds to a power noise generated by the first comparison circuit, to the first comparison output terminal on the basis of a first control signal.

An image sensor supporting a full resolution mode and a crop mode, the image sensor including: a pixel array including a plurality of pixels configured to generate a pixel signal by sensing an object; an analog-to-digital converter configured to convert the pixel signal into a digital signal and including a plurality of metal lines; a bias generator configured to apply a bias voltage to the plurality of metal lines; and a bias controller including: a first transistor configured to activate all of the plurality of metal lines based on a first control signal; and a second transistor configured to activate a first metal line for the crop mode among the plurality of metal lines based on a second control signal.

An image sensor supporting a full resolution mode and a crop mode, the image sensor including: a pixel array including a plurality of pixels configured to generate a pixel signal by sensing an object; an analog-to-digital converter configured to convert the pixel signal into a digital signal and including a plurality of metal lines; a bias generator configured to apply a bias voltage to the plurality of metal lines; and a bias controller including: a first transistor configured to activate all of the plurality of metal lines based on a first control signal; and a second transistor configured to activate a first metal line for the crop mode among the plurality of metal lines based on a second control signal.

Noise is reduced in a solid-state image capturing element provided with an ADC for each column. An analog-to-digital converter increases or decreases an analog signal using an analog gain selected from among a plurality of analog gains, and converts the increased or decreased analog signal to a digital signal. An input switching section inputs, as the analog signal, one of a test signal having a predetermined level and a pixel signal to the analog-to-digital converter. In a case where a test signal is inputted, a correction value calculation section obtains, from the analog signal and the digital signal, a correction value for correcting an error in the selected analog gain, and outputs the correction value. A correction section, when inputted with the pixel signal after the correction value is outputted, corrects the digital signal using the correction value.

An image signal processor and an image sensor including the same are disclosed. An image sensor includes a pixel array configured to convert received optical signals into electrical signals, a readout circuit configured to convert the electrical signals into image data and output the image data, and an image signal processor configured to perform deep learning-based image processing on the image data based on training data selected from among first training data and second training data based on a noise level of the image data.

Some embodiments include a system, comprising: a plurality of pixels; a plurality of data lines coupled to the pixels; a plurality of switches coupling the pixels to the data lines; a plurality of readout circuits coupled to the data lines; control logic coupled to the readout circuits, the control logic configured to, for one of the pixels: acquire a first value for the pixel while the corresponding switch is in an off state; reset the corresponding readout circuit corresponding for the pixel; acquire a second value for the pixel after resetting the readout circuit; turn on the corresponding switch; acquire a third value for the pixel after turning on the corresponding switch; and combine the first value, the second value, and the third value into a combined value for the pixel.

An imaging device includes a plurality of pixel sensors that respond to incident light. At least one drive-sense circuit is configured to generating a sensed signal corresponding to one of the plurality of pixel sensors. The at least one drive-sense circuit includes: a first conversion circuit configured to convert, a receive signal component of a sensor signal corresponding to the one of the plurality of pixel sensors into the sensed signal, wherein the sensed signal indicates a change in a capacitance associated with the one of the plurality of pixel sensors; a second conversion circuit configured to generate, based on the sensed signal, a drive signal component of the sensor signal corresponding to the one of the plurality of pixel sensors. The at least one drive-sense circuit is further configured to generate a plurality of other sensed signals corresponding to other ones of the plurality of pixel sensors for the other ones of the plurality of pixel sensors. A graphics processing module is configured to generate image data based on the sensed signal and the plurality of other sensed signals.

An imaging device includes a plurality of pixel sensors that respond to incident light. At least one drive-sense circuit is configured to generating a sensed signal corresponding to one of the plurality of pixel sensors. The at least one drive-sense circuit includes: a first conversion circuit configured to convert, a receive signal component of a sensor signal corresponding to the one of the plurality of pixel sensors into the sensed signal, wherein the sensed signal indicates a change in a capacitance associated with the one of the plurality of pixel sensors; a second conversion circuit configured to generate, based on the sensed signal, a drive signal component of the sensor signal corresponding to the one of the plurality of pixel sensors. The at least one drive-sense circuit is further configured to generate a plurality of other sensed signals corresponding to other ones of the plurality of pixel sensors for the other ones of the plurality of pixel sensors. A graphics processing module is configured to generate image data based on the sensed signal and the plurality of other sensed signals.

The present disclosure relates to a read-out circuit comprising N inputs configured to be connected to N respective outputs of a pixel array of an image sensor, with N being an integer strictly greater than 1; and N analog-to-digital converters organized in K groups, with K being an integer strictly greater than 1 and strictly less than N, and each having a first input coupled to a respective one of the N inputs and a second input. In each group, the second inputs of the analog-to-digital converters of the group are connected together, electrically decoupled from the second inputs of the analog-to-digital converters of the other groups, and configured to receive a first reference signal that is identical for all the analog-to-digital converters of the group.