Abstract: A method of controlling a comparator includes during a first time period, enabling an auto-zero loop to provide an initial offset calibration of a differential preamplifier that includes differential memory capacitors; and during a second time period after the first window, enabling a self-calibrating circuit to provide an offset calibration of the differential preamplifier, and minimizing an output offset of a dynamic latch. Wherein the dynamic latch is configured to latch an output of the differential preamplifier at a sampling frequency, the auto-zero loop including an auxiliary amplifier configured to inject a correction signal into the differential preamplifier based on a voltage across the differential memory capacitors, and the self-calibrating circuit including a charge pump configured to adjust the voltage across the differential memory capacitors based on an output of the dynamic latch.

Abstract: A method of controlling a comparator includes during a first time period, enabling an auto-zero loop to provide an initial offset calibration of a differential preamplifier that includes differential memory capacitors; and during a second time period after the first window, enabling a self-calibrating circuit to provide an offset calibration of the differential preamplifier, and minimizing an output offset of a dynamic latch. Wherein the dynamic latch is configured to latch an output of the differential preamplifier at a sampling frequency, the auto-zero loop including an auxiliary amplifier configured to inject a correction signal into the differential preamplifier based on a voltage across the differential memory capacitors, and the self-calibrating circuit including a charge pump configured to adjust the voltage across the differential memory capacitors based on an output of the dynamic latch.

Abstract: An analog-to-digital converter (ADC) sampling system and method for imaging and non-imaging systems to conserve power consumption is provided. The ADC sampling system performs only two comparisons for each pixel based on a background value and a threshold value to determine whether the light detected by the pixel is different from a background image.

Abstract: An analog-to-digital converter (ADC) sampling system and method for imaging and non-imaging systems to conserve power consumption is provided. The ADC sampling system performs only two comparisons for each pixel based on a background value and a threshold value to determine whether the light detected by the pixel is different from a background image.

Abstract: A device comprises a camera having a dual VL and IR imaging sensors and a readout assembly communicatively coupled to the dual VL and IR imaging sensors, an user interface for displaying an image captured by the camera, a processor for processing the captured image, and a memory for storing the processed image. The readout assembly comprises a first readout circuit and a second readout circuit. The dual VL and IR imaging sensors comprises a plurality of visual light (VL) imaging pixels for capturing first image data in response to the visual light (VL) and an infrared (IR) imaging pixels for capturing second image data in response to IR wavelength ranges between 850 nm and 14000000 nm.

Abstract: A multi-spectral visual light (VL) and infrared (IR) imaging system and method suitable for use in security cameras, security devices, surveillance cameras, surveillance devices, consumer digital cameras, consumer digital devices, thin clients, thick clients, industrial machine vision systems, automotive cameras, home furnishing cameras, residential cameras, commercial cameras, object detectors, as well as other markets and/or applications is provided. The multi-spectral VL and infrared IR imaging system comprises a plurality of VL imaging sensors, a plurality of infrared (IR) imaging sensors, and a readout assembly operatively connected to the CMOS imaging sensors and the IR imaging sensors, wherein the IR imaging sensors configured to generate thermal signals and operate the CMOS imaging sensors.