To output event information at high sensitivity and high speed with a simple configuration. An imaging device includes: a plurality of pixels each having a plurality of photoelectric conversion elements that photoelectrically converts incident light to generate an electric signal; a detecting section that outputs a detection signal in a case where an absolute value of a change amount of the electric signal in a pixel of the plurality of pixels exceeds a predetermined threshold; a signal processing section that performs predetermined signal processing on the basis of the detection signal output from the detecting section; an AZ output section that outputs an auto-zero signal for initializing the detecting section; a time code generator that outputs a time code changing at a predetermined cycle; a first holding circuit that holds the time code output from the time code generator when the auto-zero signal is output; a second holding circuit that holds the time code output from the time code generator when the detection signal is output; and a transfer section that transfers the time code held in the first holding circuit and the time code held in the second holding circuit to the signal processing section in association with each other.

A photoelectric conversion apparatus includes a processing circuit, and a memory that stores a computer-readable instruction for causing, when executed by the processing circuit, the photoelectric conversion apparatus to generate control signals for controlling an operation of an image capturing unit configured to perform image capturing using avalanche light emission, control a first generation unit to generate control signals of a first frame and a second frame, wherein a number of the control signals during an exposure period of the second frame is smaller than a number of the control signals during an exposure period of the first frame, acquire an output of the first frame captured by the image capturing unit and an output of the second frame captured by the image capturing unit, and generate an image based on the output of the first frame and the output of the second frame.

A device includes a conversion unit, a generation unit configured to generate a pulse signal based on a signal from the conversion unit, a counter circuit configured to count the generated pulse signal, and a time measurement circuit configured to measure a time wherein one of a count value counted by the counter circuit or a time measurement value measured by the time measurement circuit is selectively output.

An apparatus includes a photodiode including an anode and a cathode, a switch connected to a node of one of the anode and the cathode and to a power supply line via which a driving voltage is supplied, and functioning to switch a resistance value between the node and the power supply line, and a generation unit configured to generate a pulse signal for controlling switching of the switch. The apparatus is operable in one of two modes including a first mode and a second mode, the second mode being usable in a lower luminance condition than a luminance condition in the first mode. In an exposure period for acquiring one frame of signals, the number of pulse signals in the second mode is smaller than in the first mode.

An apparatus includes a photodiode including an anode and a cathode, a switch connected to a node of one of the anode and the cathode and to a power supply line via which a driving voltage is supplied, and functioning to switch a resistance value between the node and the power supply line, and a generation unit configured to generate a pulse signal for controlling switching of the switch. The apparatus is operable in one of two modes including a first mode and a second mode, the second mode being usable in a lower luminance condition than a luminance condition in the first mode. In an exposure period for acquiring one frame of signals, the number of pulse signals in the second mode is smaller than in the first mode.

A device that may include a transmitter that is configured to transmit, per each sensing iteration, a radiation pulse; an array of pixels, each pixel comprises multiple subpixels, each subpixel comprises single photon avalanche diodes (SPADs) that are coupled to each other in parallel, and one or more quenching circuits, wherein each subpixel is configured to output a subpixel output signal indicative of a reflected radiation pulse sensed by one or more SPADs of the subpixel; wherein the reflected radiation pulse is reflected from an area of an object that was illuminated by the radiation pulse; and a processing circuit that is configured to: read, for each pixel, multiple subpixel output signals from the multiple subpixels of the pixel; receive, per each sensing iteration, transmission timing information indicative of a timing of transmission of the radiation pulse; and determine, per each sensing iteration and per each subpixel, a timing of a first detection of the reflected pulse detected by any of the SPADs of the subpixel.

An imaging device according to an embodiment of the present disclosure includes a light-receiving pixel, a power supply, a driver, and a current circuit. The light-receiving pixel includes a light-receiving element and a pixel transistor. The light-receiving element generates electric charge corresponding to an amount of received light. The power supply generates a first power supply voltage at a first power supply node. The driver drives the pixel transistor on the basis of the first power supply voltage at the first power supply node. The current circuit causes a power supply current to flow through a current path led to the first power supply node. The power supply current has a predetermined current value. The current circuit includes a load, a load driving section, and a switch. The load driving section drives the load. The switch is provided on the current path. The switch allows the power supply current to flow through the current path by being turned on in a period in which a voltage in the load changes by a predetermined voltage.

An imaging device according to an embodiment of the present disclosure includes a light-receiving pixel, a power supply, a driver, and a current circuit. The light-receiving pixel includes a light-receiving element and a pixel transistor. The light-receiving element generates electric charge corresponding to an amount of received light. The power supply generates a first power supply voltage at a first power supply node. The driver drives the pixel transistor on the basis of the first power supply voltage at the first power supply node. The current circuit causes a power supply current to flow through a current path led to the first power supply node. The power supply current has a predetermined current value. The current circuit includes a load, a load driving section, and a switch. The load driving section drives the load. The switch is provided on the current path. The switch allows the power supply current to flow through the current path by being turned on in a period in which a voltage in the load changes by a predetermined voltage.

According to an example embodiment, an image sensor including a plurality of pixels, each pixel includes: a photodiode; a pulse generator configured to generate a pulse signal based on an electric signal generated according to a photon incident on the photodiode; and a counter configured to count and output the number of pulse signals, wherein a period of the pulse signal is modulated according to an ambient illuminance of the image sensor.

In an image sensor including a pixel array having a plurality of pixels, each of the plurality of pixels includes: a first photodiode; a second photodiode having a larger light-receiving area than the first photodiode; a first floating diffusion node where charge generated in the first photodiode is accumulated; a second floating diffusion node where charge generated in the second photodiode is accumulated; a first capacitor accumulating charge overflowing from the first photodiode; a first driving transistor configured to generate an output signal corresponding to a voltage of the second floating diffusion node; and a second capacitor storing an amount of overflow charges according to an overflow operation for accumulating the overflowing charge and storing an amount of reset charges according to a reset operation for resetting the first floating diffusion node.