18322629. Image sensor with high dynamic range and low noise simplified abstract (Apple Inc.)
Image sensor with high dynamic range and low noise
Organization Name
Inventor(s)
Vladimir Koifman of Rishon Lezion (IL)
Image sensor with high dynamic range and low noise - A simplified explanation of the abstract
This abstract first appeared for US patent application 18322629 titled 'Image sensor with high dynamic range and low noise
Simplified Explanation
The patent application describes an image sensor with advanced column readout circuits and detector elements.
- The image sensor includes a logic die with column readout circuits and a sensor die with an array of detector elements.
- Each detector element consists of a photodiode with cathode and anode terminals and a floating diffusion node.
- Various transistors, such as reset transistors, source follower transistors, and select transistors, are used to control the operation of the detector elements.
- The transistors help in resetting the floating diffusion node, amplifying the signal, and selecting specific detector elements for readout.
Potential Applications
This technology can be used in digital cameras, smartphones, surveillance cameras, and medical imaging devices.
Problems Solved
1. Improved image quality and sensitivity. 2. Enhanced signal processing capabilities. 3. Reduction in noise and distortion in captured images.
Benefits
1. Higher resolution images. 2. Better low-light performance. 3. Faster readout speeds. 4. Improved overall image quality.
Potential Commercial Applications
Optimizing Image Sensor Technology for Enhanced Performance.
Original Abstract Submitted
An image sensor includes a logic die, including column readout circuits, and a sensor die, overlaid on the logic die and including bitlines connected to the column readout circuits and an array of detector elements. Each detector element includes a photodiode having cathode and anode terminals and a floating diffusion node connected to one of the terminals of the photodiode. A first reset transistor is coupled between the floating diffusion node and a reset voltage. A source follower transistor has an input connected to the floating diffusion node and an output connect to a first terminal of an output capacitor having first and second terminals, with the first terminal. A second reset transistor is coupled between a second terminal of the output capacitor and the reset voltage. A select transistor is coupled between the second terminal of the output capacitor and one of the bitlines.
