Primary Image Sensor Integrating Signal Processing for Multi-Sensor Systems
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Solution Overview
Problem
Mobile and handheld devices with single image sensors face challenges in implementing applications like video conferencing due to the inability to display captured images simultaneously, leading to increased costs and complexity when using multiple image sensors.
Innovation Solution
A multiple image sensor system with a primary integrated image sensor connected to secondary image sensors, where the primary sensor processes images and adjusts output signals based on data received from secondary sensors, reducing the need for duplicate processing circuitry across all sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple image sensors are used to enable simultaneous image capture and display, then the functionality for applications like video conferencing is improved, but the device cost and complexity increase due to duplicated components in each sensor
Solution Approach 1:
The primary image sensor is designed to perform multiple functions: it captures images for both the external display and the internal display, and its integrated processing circuit handles image processing for both displays. This multi-functionality eliminates the need for separate dedicated sensors for each display, reducing overall system complexity while maintaining the capability for simultaneous image capture and display.
Solution Approach 2:
The patent combines the image processing circuitry directly within the primary image sensor chip, merging functions that were traditionally separate (sensor capture and image processing) into a single integrated unit. This integration reduces the number of discrete components and interconnections, thereby reducing device complexity while enabling simultaneous operation with multiple displays.
2Adaptability or versatility
If multiple image sensors are used to enable simultaneous image capture and display, then the functionality for applications like video conferencing is improved, but the device cost increases due to duplicated components in each sensor
Solution Approach 1:
The primary image sensor with integrated processing circuitry serves as a universal imaging solution for both displays, eliminating the need to manufacture and assemble multiple complete sensor modules. This reduces component inventory requirements, assembly steps, and overall manufacturing cost while maintaining the functionality needed for applications like video conferencing.
3Ease of manufacture
If a single image sensor is used, then the device cost and complexity are reduced, but the ability to display captured images simultaneously on multiple displays is limited
Solution Approach 1:
The patent merges the image processing circuitry with the image sensor to create an integrated unit that can rapidly process and output images for multiple displays simultaneously. This integration enables a single sensor to fulfill the functionality previously requiring multiple sensors, maintaining cost-effectiveness while achieving multi-display capability.
Data Source
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AI summary
A primary integrated image sensor is operatively connected to one or more secondary image sensors. The primary integrated image sensor includes a pixel array integrated on a semiconductor substrate along with one or more of an image signal processing circuit, readout circuitry, a digital serial interface, storage, a timing circuit, an analog-to-digital converter, and a bi-directional digital input/output circuit. Each secondary image sensor can be implemented as a Complementary Metal Oxide Semiconductor (CMOS) or a Charge Coupled Device (CCD) image sensor and include a pixel array along with one or more of a readout circuitry, a digital serial interface, a timing circuit, an output circuit, and an optional analog-to-digital converter. Images captured by the primary integrated image sensor and each secondary image sensor are processed by the primary image sensor. Each secondary image sensor can also transmit physical and operational data to the primary integrated image sensor.