3. Ultra-Low-Noise CMOS Image Sensor with Reset-Gate-Less Pixel

Ultra Low Noise CMOS Image Sensors

The continuous improvements of CMOS image sensors (CIS) in terms of quantum efficiency, speed, resolution, etc. brought this low-cost devices into high-performance applications replacing progressively the charge coupled devices (CCDs). Photoelectron counting capability is the next step for CIS for ultimate low light performance and new imaging paradigms. With Recent improvements of CIS sensitiv...

A High-Sensitivity Low Dark Current 1.75T/Pixel CMOS Image Sensor with Ring-Gate Shared-Pixel Design

CMOS image sensor with pseudorandom pixel Placement

The picture element (pixel) in conventional image sensors are placed in the form of a lattice for ease of implementation. Lattice placement of pixels intrinsically has directional singularity on the clarity of image representation, and the clarity is significantly dependent on the directions of the objects in the image. For example, horizontal lines are perfectly represented, while slanted line...

CMOS Active Pixel Image Sensor

This paper addresses the development of a micropower 176 144 CMOS active pixel image sensor that dissipates one to two orders of magnitude less power than current state-of-the-art CMOS image sensors. The chip operates from a 1.5-V voltage source and the power consumption measured for the chip running from an internal 25.2-MHz clock yielding 30 frames per second is about 550 W. This amount enabl...

Briefs CMOS Active Pixel Image Sensor with Simple Floating Gate Pixels

Absbact-A new pixel structure using a simple floating gate (SFG) has been proposed. The pixel consists of a coupling capacitor, a photogate, a barrier gate and a MOS transistor. It featum complete reset that results in no kTC noise and no image lag, hlgh blooming overload protection, nondestructive readout (NDRO), and CMOS compatibility. Its basic operation has been confirmed with a 3 2 0 x 2 7...