Patent classifications
H04N5/376
Imaging device
An imaging device has a sensor chip and a signal processing chip. The sensor chip includes a pixel array in which a plurality of pixels are arranged in a 2-dimensional matrix and a data output terminal group made up of a plurality of data output terminals which output analog signals of pixels for each pixel column of the pixel array. The signal processing chip includes a data input terminal group electrically coupled to the data output terminal group, a plurality of A/D converters which convert analog signals of pixels received by the data input terminal group into digital signals for each pixel column of the pixel array, and a control unit which controls operation of the plurality of A/D converters.
Driving method for image pickup apparatus, and image pickup apparatus
A pixel portion includes a plurality of first pixel rows and a plurality of second pixel rows each being arranged so as to be adjacent to the first pixel row. Among the first pixel row and the second pixel row arranged so as to be adjacent to each other, during at least a part of a period from an end of the electric charge accumulation period in the second pixel row until an end of an output period in which signals from pixels in the first pixel row are output, electric charges accumulated in photoelectric conversion units of pixels in the second pixel row are reset.
Image sensor with high dynamic range and method
In one form, a pixel for use in image sensing comprises a photodetector, a sink device, and a readout circuit. The photodetector is formed in a semiconductor substrate and has a charge collection region for receiving photocharge representative of incident light. The sink device is formed in the semiconductor substrate and adjacent to the charge collection region and has a gate overlying and insulated from the semiconductor substrate and receiving a responsivity control signal. The readout circuit transfers the photocharge collected by the charge collection region of the photodetector to an output in response to a select signal. In another form, the pixel may be used in an image sensor having a pixel array of such pixels.
Synchronized solid-state imaging element, imaging device, and electronic device
There is provided a solid-state imaging element in which a first substrate in which a pixel circuit including a pixel array unit is formed and a second substrate in which a plurality of signal processing circuits are formed are laminated, and a common reference clock is supplied to the plurality of signal processing circuits that are formed on the second substrate.
ON-CHIP MULTIPLEXING PIXEL CONTROL CIRCUIT
The present invention belongs to the technical field of CMOS image sensors, and particularly relates to an on-chip multiplexing pixel control circuit for controlling a super-large area array splicing CMOS image sensor. The multiplexing type pixel control circuit includes at least one multiplexing unit, each multiplexing unit includes L levels of serial pixel control sub-circuits and a windowing address gating circuit. Through the different positions of the multiplexing units in the whole chip, the group address buffer circuits of the multiplexing units generate different group address reference signals, which are compared with a group decoding address generated in a group decoding address buffer circuit to realize group decoding and gate the multiplexing unit. Meanwhile, the serial pixel control sub-circuit in the multiplexing unit is compared with a row decoding address to realize exposure and readout control of a corresponding row of the multiplexing unit. The control circuit of the present invention is simple in structure and reliable in control, and has excellent expandability and multiplexing capability, which can be applied to CMOS image sensor chip circuits with different area array scales.
RANGING METHOD AND RANGING DEVICE
A ranging method uses a light source and a range sensor. The range sensor includes a charge-generating area and first and second charge-accumulating areas. Charges generated in the charge-generating area are transferred to the first charge-accumulating area during a first period so as to be accumulated in the first charge-accumulating area and the second charge-accumulating area during a second period so as to be accumulated in the second charge-accumulating area. A distance d to an object OJ is arithmetized based on a quantity of charges accumulated in the first charge-accumulating area and a quantity of charges accumulated in the second charge-accumulating area. When pulse light is emitted from the light source, the pulse light whose light-intensity stable period within the emission period of the pulse light is set in advance to be longer than each of the first and second periods is emitted from the light source.
HDR PIXEL
The image sensor according to the invention is an image sensor with a matrix of pixels for generating a resulting image with a higher dynamic range from the acquisition of two original images, wherein the pixels of the image sensor are designed as demodulation pixels, wherein each comprises a conversion region for generating charge carriers from the received radiation, a separation device for temporally separating the generated charge carriers into two charge carrier streams, a memory device with two memories for separately storing the charge carriers of the two charge carrier streams, and a read-out device for converting the stored charge carriers into electrical signals, wherein the separation device is designed to carry out the separation of the charge carriers generated in one period into two different time periods.
TIME DETECTION CIRCUIT, AD CONVERSION CIRCUIT, AND SOLID-STATE IMAGING DEVICE
A latch unit that starts an operation of capturing a data signal according to a startup instruction signal and holds the data signal and ends the capturing operation at a timing at which an execution instruction signal is input, a first signal path that transfers a latch timing signal as the startup instruction signal, and a second signal path that transfers the latch timing signal as the execution instruction signal are included, and a first logic element that outputs a first output signal switched to a logical value according to a logical value of an input signal at a first predetermined timing, and a signal maintenance logic circuit that continues to output a second output signal with a predetermined logical value according to the logical value of the input signal until initialization of a reset signal is indicated are arranged in the second signal path.
PHOTON COUNTING DEVICE AND PHOTON COUNTING METHOD
A photon counting device includes a plurality of pixels each including a photoelectric conversion element configured to convert input light to charge, and an amplifier configured to amplify the charge converted by the photoelectric conversion element and convert the charge to a voltage, an A/D converter configured to convert the voltages output from the amplifiers of the plurality of pixels to digital values; and a conversion unit configured to convert the digital value output from the A/D converter to the number of photons by referring to reference data, for each of the plurality of pixels, and the reference data is created based on a gain and an offset value for each of the plurality of pixels.
IMAGING APPARATUS INCLUDING ZOOM MECHANISM, AND INTERCHANGEABLE LENS
An imaging apparatus including an exchangeable lens and a camera body. The camera body transmits a synchronizing signal having the same cycle as the cycle of the capturing operation in the imaging unit, to the interchangeable lens. The controller of the exchangeable lens performs a zoom tracking control by determining the focus position of the focus lens from the position of the zoom lens detected by the position detector by referring to the relation information, and controlling the focus lens driver to move the focus lens to the determined focus position, The controller performs the zoom tracking control in a cycle (for example, one-eighth) shorter than a cycle indicated by the synchronizing signal received from the camera body.