Image Sensor Circuit Board Switching to Reduce Board Variants
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Solution Overview
Problem
Image sensors require multiple types of circuit boards with different components and wires to synchronize and process image signals, leading to complexity and increased costs due to the need for managing and mounting various types of boards.
Innovation Solution
A circuit board design incorporating a switch with four or more selection pins and a logic circuit that activates or deactivates electronic components based on input signals, allowing a single type of board to function as multiple types by selectively outputting signals through independent output terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of circuit boards with different components and wires are used to synchronize and process image signals, then the image sensor can meet different functional requirements, but the complexity in management increases, costs increase, and mounting errors may occur
Solution Approach 1:
The patent applies universality by designing a single type of circuit board that can perform multiple functions through configurable logic circuits. The board includes selection pins and logic circuits that enable it to be configured as different types of boards (first type with reference clock output, second type with synchronization signal output, or third type without signal output) based on switch settings, eliminating the need for multiple physical board types while maintaining adaptability to different functional requirements
2Adaptability or versatility
If multiple types of circuit boards with different lengths and components are used, then the image reading area can be adjusted to match specifications, but the processes of managing and mounting components become complicated
Solution Approach 1:
The patent uses a universal circuit board design that can be configured for different image reading areas through logic circuit settings rather than physical modifications. The same board type can be adapted to different specifications by changing the configuration of selection pins and logic circuit outputs, simplifying the manufacturing and mounting processes while maintaining the ability to adjust the image reading area to match various specifications
3Adaptability or versatility
If switches are used to activate or deactivate components and switch wirings, then the number of types of circuit boards can be reduced, but the logic circuits must have sufficient output terminals to control multiple components
Solution Approach 1:
The patent resolves the output terminal limitation by introducing a temporal dimension through sequential control. The logic circuits use clock signals and synchronization signals to control components in different time phases rather than requiring simultaneous control through multiple output terminals. This allows a single output terminal to effectively control multiple components by switching their activation in sequence, thereby reducing the number of required output terminals while maintaining the ability to control numerous components
Data Source
AI summary
Each of circuit boards functioning as boards includes a switch including four or more selection pins, a logic circuit, and electronic components. The logic circuit outputs an ON signal from one output terminal selected from four or more output terminals independent from each other, when receiving an ON signal input from only a predetermined one selection pin of the selection pins and receiving OFF signals input from all the other selection pins. The electronic components are activated or deactivated in accordance with signals output from the logic circuit.