IMAGE SENSOR WITH TEST CIRCUIT

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IMAGE SENSOR WITH TEST CIRCUIT - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240214552 titled 'IMAGE SENSOR WITH TEST CIRCUIT

The patent application describes an image sensor with a pixel array that generates analog signals in response to light, an analog-to-digital converter that converts these signals into digital form, and a test circuit that changes a reset code based on a horizontal time period to test the counting operation of the converter.

Pixel array generates analog signals in response to incident light
Analog-to-digital converter converts analog signals into digital form
Test circuit changes reset code based on horizontal time period to test counting operation of the converter

Potential Applications: - Digital cameras - Surveillance systems - Medical imaging devices

Problems Solved: - Ensures accurate conversion of analog signals to digital form - Facilitates testing of counting operation in the converter

Benefits: - Improved image quality - Enhanced performance and reliability - Simplified testing process

Commercial Applications: Title: "Advanced Image Sensors for High-Performance Cameras" This technology can be used in high-end digital cameras, security cameras, and medical imaging equipment, enhancing their functionality and performance in various applications.

Prior Art: Researchers can explore prior patents related to image sensors, analog-to-digital converters, and test circuits to understand the existing technology landscape in this field.

Frequently Updated Research: Researchers in the field of image sensor technology may be conducting studies on improving the efficiency and accuracy of analog-to-digital conversion processes, which could be relevant to this innovation.

Questions about Image Sensor Technology: 1. How does this image sensor technology compare to traditional analog sensors? This image sensor technology offers improved performance and accuracy in converting analog signals to digital form, enhancing overall image quality and reliability.

2. What are the key advantages of using a test circuit to monitor the counting operation of the analog-to-digital converter? The test circuit allows for real-time monitoring and adjustment of the converter's counting operation, ensuring accurate and consistent digital signal conversion.

Original Abstract Submitted

provided is an image sensor including a pixel array that includes a plurality of pixels, wherein each of the plurality of pixels is configured to generate an analog signal in response to incident light; an analog-to-digital converter that includes a counter, wherein the analog-to-digital converter is configured to convert the analog signal into a digital signal; and a test circuit that is configured to change a reset code according to a horizontal time period, wherein the reset code corresponds to a first counting value during a reset time period of a test mode according to a count clock signal, and wherein the test circuit is configured to test a counting operation of the counter based on the reset code that changes according to the horizontal time period.