Abstract: The present disclosure relates to an imaging device, a pixel and a method thereof. The imaging device comprises: a pixel array, which comprises multiple pixels arranged in rows and columns, wherein at least one pixel comprises multiple subpixels, and the multiple subpixels share one floating diffusion region; and a control circuit, which controls the pixel array; wherein the control circuit reads the multiple subpixels one by one under the rolling shutter state, and reads the multiple subpixels simultaneously under the global shutter state.

Abstract: A counter, an analog-to-digital converter, and a method for reading out image signals; the counter comprises N cascaded counting units, each of which comprises a writable D flip-flop, which has a clock input, a data input, a Q output, a Q-bar output, a control input, and a write input; the clock input of the writable D flip-flop of each counting unit is connected to the Q-bar or Q output of the writable D flip-flop of a previous counting unit, except that the clock input of the writable D flip-flop of a first counting unit of the N cascaded counting units receives a clock signal; the Q-bar output of each writable D flip-flop is connected to the data input of the same writable D flip-flop, each Q output generates a counting result, each control input receives a control signal, and each write input receives a write signal.

Abstract: This application belongs to the technical field of semiconductor devices, and relates to a pixel circuit, a control method, and an image sensor, including: at least two pixel units arranged in an array, wherein transmission transistors of at least two pixels of at least one pixel unit are connected to a corresponding first group of transmission control lines, and a transmission transistor of one other pixel is connected to a corresponding second group of transmission control lines. Therefore, the pixel circuit, the control method and the image sensor provided in the present application can control the density of phase focus of the image sensor by controlling the first group of transmission control lines and the second group of transmission control lines without changing the structure of the pixel, the structure is simple, and the optical performance is good.

Abstract: This application belongs to the technical field of semiconductor devices, and relates to a pixel circuit, a control method, and an image sensor, including: at least two pixel units arranged in an array, wherein transmission transistors of two pixels of at least one pixel unit are connected to a corresponding first group of transmission control lines, and transmission transistors of other pixel unit are connected to a corresponding second group of transmission control lines. Therefore, the pixel circuit, the control method and the image sensor provided in the present application can control the density of phase focus of the image sensor by controlling the first group of transmission control lines and the second group of transmission control lines without changing the structure of the pixel, the structure is simple, and the optical performance is good.

Abstract: A counter, an analog-to-digital converter, and a method for reading out image signals; the counter comprises N cascaded counting units, each of which comprises a writable D flip-flop, which has a clock input, a data input, a Q output, a Q-bar output, a control input, and a write input; the clock input of the writable D flip-flop of each counting unit is connected to the Q-bar or Q output of the writable D flip-flop of a previous counting unit, except that the clock input of the writable D flip-flop of a first counting unit of the N cascaded counting units receives a clock signal; the Q-bar output of each writable D flip-flop is connected to the data input of the same writable D flip-flop, each Q output generates a counting result, each control input receives a control signal, and each write input receives a write signal.

Abstract: An image sensor array and circuit design and method employing a voltage and current detection circuit capable of quantifying a power signal, grounding signal, internal reference voltage and internal reference current. An image sensor comprising the invented circuit design may be incorporated within a digital camera.

Abstract: An image sensor array and circuit design and method employing a voltage and current detection circuit capable of quantifying a power signal, grounding signal, internal reference voltage and internal reference current. An image sensor comprising the invented circuit design may be incorporated within a digital camera.

Abstract: The present invention discloses an image sensor, an image readout method, and an electronic device. The image sensor comprises: a pixel array and a plurality of readout conversion circuits, the readout conversion circuit comprises: a comparison circuit for comparing an output signal of the column pixel with a ramp signal to obtain a first output signal and a second output signal; a selection module for selecting the first output signal during a first sampling count, and selecting the second output signal during a second sampling count; a counter for counting according to the first output signal and the second output signal to obtain total quantization value of the first sampling count and the second sampling count, so as to obtain actual signal quantization result according to the total quantization value. The image readout speed of the image sensor is improved.

Abstract: The present disclosure relates to an imaging device, a pixel and a method thereof The imaging device comprises: a pixel array, which comprises multiple pixels arranged in rows and columns, wherein at least one pixel comprises multiple subpixels, and the multiple subpixels share one floating diffusion region; and a control circuit, which controls the pixel array; wherein the control circuit reads the multiple subpixels one by one under the rolling shutter state, and reads the multiple subpixels simultaneously under the global shutter state.

Abstract: This application belongs to the technical field of semiconductor devices, and relates to a pixel circuit, a control method, and an image sensor, including: at least two pixel units arranged in an array, wherein transmission transistors of two pixels of at least one pixel unit are connected to a corresponding first group of transmission control lines, and transmission transistors of other pixel unit are connected to a corresponding second group of transmission control lines. Therefore, the pixel circuit, the control method and the image sensor provided in the present application can control the density of phase focus of the image sensor by controlling the first group of transmission control lines and the second group of transmission control lines without changing the structure of the pixel, the structure is simple, and the optical performance is good.

Abstract: This application belongs to the technical field of semiconductor devices, and relates to a pixel circuit, a control method, and an image sensor, including: at least two pixel units arranged in an array, wherein transmission transistors of at least two pixels of at least one pixel unit are connected to a corresponding first group of transmission control lines, and a transmission transistor of one other pixel is connected to a corresponding second group of transmission control lines. Therefore, the pixel circuit, the control method and the image sensor provided in the present application can control the density of phase focus of the image sensor by controlling the first group of transmission control lines and the second group of transmission control lines without changing the structure of the pixel, the structure is simple, and the optical performance is good.

Abstract: The present invention discloses an image sensor, an image readout method, and an electronic device. The image sensor comprises: a pixel array and a plurality of readout conversion circuits, the readout conversion circuit comprises: a comparison circuit for comparing an output signal of the column pixel with a ramp signal to obtain a first output signal and a second output signal; a selection module for selecting the first output signal during a first sampling count, and selecting the second output signal during a second sampling count; a counter for counting according to the first output signal and the second output signal to obtain total quantization value of the first sampling count and the second sampling count, so as to obtain actual signal quantization result according to the total quantization value. The image readout speed of the image sensor is improved.

Abstract: Disclosed are a pixel unit, and an imaging method and apparatus thereof. The pixel has a first and a second pixel sub-portion each comprising one or more photodiodes; one or more transfer transistors each coupled to a floating diffusion, for transferring the charges generated by the one or more photodiodes in response to incident light during an exposure period and accumulated in the photodiode during said exposure period respectively to the floating diffusion; a reset transistor; and a source follower transistor coupled to the floating diffusion for amplifying and outputting the pixel signal of the floating diffusion. In some embodiments, the pixel further includes a capacitor and a gain control transistor.

Abstract: An image sensor pixel noise suppression circuit having a source follower transistor based pixel circuit, a power supply voltage and noise mirror circuit, a power supply voltage and noise gain circuit, and a comparator circuit. An output of the comparator circuit provides an image related output signal wherein the noise component of the source follower signal has been suppressed. The invention further includes a CMOS image sensor containing the image sensor pixel noise suppression circuit.

Abstract: An image sensor array and circuit design employs a method of black level compensation to address vertical image shading related to global exposure image capture and rolling row by row readout schemes. An image sensor having the invented black level compensation pixel array and method may be incorporated within a digital camera.

Abstract: An image sensor array and circuit design employs a method of black level compensation to address vertical image shading related to global exposure image capture and rolling row by row readout schemes. An image sensor having the invented black level compensation pixel array and method may be incorporated within a digital camera.

Abstract: Disclosed are a pixel unit, and an imaging method and apparatus thereof. The pixel comprises a first and a second pixel sub-portion each comprising one or more photodiodes; one or more transfer transistors each coupled to a floating diffusion, for transferring the charges generated by the one or more photodiodes in response to incident light during an exposure period and accumulated in the photodiode during said exposure period respectively to the floating diffusion; a reset transistor; and a source follower transistor coupled to the floating diffusion for amplifying and outputting the pixel signal of the floating diffusion. In some embodiments, the pixel further includes a capacitor and a gain control transistor.

Abstract: Disclosed are a pixel unit, and an imaging method and apparatus thereof. The pixel has a first and a second pixel sub-portion each comprising one or more photodiodes; one or more transfer transistors each coupled to a floating diffusion, for transferring the charges generated by the one or more photodiodes in response to incident light during an exposure period and accumulated in the photodiode during said exposure period respectively to the floating diffusion; a reset transistor; and a source follower transistor coupled to the floating diffusion for amplifying and outputting the pixel signal of the floating diffusion. In some embodiments, the pixel further includes a capacitor and a gain control transistor.

Abstract: An image sensor pixel noise suppression circuit having a source follower transistor based pixel circuit, a power supply voltage and noise mirror circuit, a power supply voltage and noise gain circuit, and a comparator circuit. An output of the comparator circuit provides an image related output signal wherein the noise component of the source follower signal has been suppressed. The invention further includes a CMOS image sensor containing the image sensor pixel noise suppression circuit.

Abstract: A pixel cell and row select and row driver circuits include two column bias circuits and row driver circuits, one placed at the right and one placed at the left side of the array of pixel cells. The digital control signals for the two sets of bias and row driver circuits enter at the center top or bottom of the array of pixel cells and drive the circuits symmetrically. The combination of two-sided row driver and column bias helps eliminate any signal delay and bias difference between the left and right side of the pixel cell array. More significantly this circuit construction can minimize horizontal shading in the resulting image.