Camera Module True IDE Interface Bypass Host CPU
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Solution Overview
Problem
Existing camera modules integrated into portable electronic devices, such as cell phones and PDAs, face challenges with slow data transmission due to insufficient central processing unit speed and require significant software modifications to support multiple display modules, increasing development time and complexity.
Innovation Solution
A camera module with a True IDE interface that includes a display module control interface, image sensor, and camera control circuit, capable of operating in both bypass and bridge modes, allowing efficient control of multiple display modules using a chip select signal and performing image processing directly, thereby reducing software modification needs and enhancing integration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the camera module uses a built-in integration approach sharing the host's data bus, then the device complexity is reduced, but the data transmission speed becomes insufficient when the host's CPU speed is not high enough
Solution Approach 1:
The patent divides the control function into two segments: the host handles high-level control while the camera module's internal circuit handles low-level display control. This segmentation allows the camera module to independently manage display data without relying solely on the host's CPU speed, resolving the contradiction between integration simplicity and data transmission speed.
Solution Approach 2:
The camera module's internal circuit acts as an intermediary between the host and the display module. It receives control signals from the host, processes display data locally, and sends it to the display module. This intermediary function enables fast local processing without requiring the host's CPU to be extremely fast, thus resolving the speed limitation while maintaining integration simplicity.
2Ease of manufacture
If the camera module is integrated with external enclosure, then the ease of manufacture is improved, but significant software modifications are required increasing development time
Solution Approach 1:
The camera module is designed with universal control interface that can work with multiple display modules without requiring host software modifications. The internal circuit is designed to handle both built-in and external enclosure configurations, making the module versatile and reducing development time while maintaining manufacturing ease.
3Adaptability or versatility
If the camera module controls multiple display modules through the host, then the adaptability is improved, but the device complexity increases due to software modification requirements
Solution Approach 1:
The camera module's internal circuit is designed to self-manage the control of multiple display modules independently of the host's software. It uses chip select signals to automatically identify and control connected display modules, eliminating the need for complex host software modifications while maintaining high adaptability to different display configurations.
Data Source
AI summary
A camera module of image processing and a method for integrating the camera module with a host are described. The camera module has a display control interface, an image sensor, and a camera control circuit. The display control interface is used to control at least one display module. The image sensor is used to capture image and provide image data signals. The camera control circuit is used to control the camera module. The camera module bypasses the display data signals of a host to display control modules according to a bypass signal. The camera module also performs image processing according to the bypass signal and a command set.