Logic Chip Vibration Correction Signal Routing for High-Speed Processing
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Solution Overview
Problem
Existing semiconductor devices with anti-shake functions face challenges in achieving high-speed processing due to decreased microcomputer processing rates with increasing signal processing volumes, and integrating dedicated signal processing circuits requires costly redesigns.
Innovation Solution
A semiconductor device with a driver chip and logic chip sealed in a single package, featuring a vibration correction control unit, correction signal processing unit, and multiple signal output sections for various motor control types, allowing for high-speed and versatile processing by combining digital and analog circuits, and enabling flexible signal processing through a central processing unit and dedicated circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a microcomputer is used for signal processing, then various types of processing operations can be achieved by a single microcomputer, but the processing rate decreases as the volume of signal processing increases
Solution Approach 1:
The patent divides the signal processing system into two segments: a microcomputer for high-level control and signal generation, and a dedicated signal processing circuit for high-speed execution of specific processing operations. This segmentation allows the microcomputer to maintain versatility while the dedicated circuit ensures high processing rates for computationally intensive tasks.
Solution Approach 2:
The patent introduces an intermediary dedicated signal processing circuit that acts as a bridge between the microcomputer and the anti-shake control system. This intermediary handles the computationally intensive signal processing operations, freeing the microcomputer to perform other control functions while maintaining overall system versatility.
2Productivity
If dedicated signal processing circuits are integrated to increase processing rate, then high-speed processing is achieved, but redesign of dedicated circuits is required each time apparatus design changes, significantly increasing manufacturing costs
Solution Approach 1:
The patent designs the dedicated signal processing circuit with universal interfaces and standardized communication protocols that allow it to work with different microcomputer configurations. This universality enables the same dedicated circuit design to be used across multiple apparatus iterations, reducing manufacturing costs while maintaining high processing rates.
Solution Approach 2:
The patent implements a dynamic architecture where the dedicated signal processing circuit can be selectively enabled or configured based on the specific apparatus requirements. This allows the system to adapt to different design changes without requiring complete redesign of the dedicated circuit, thereby reducing manufacturing costs while preserving high-speed processing capability.
3Adaptability or versatility
If multiple types of signal processing are performed, then functionality is enhanced, but the processing rate decreases due to increased computational load
Solution Approach 1:
The patent segments signal processing tasks into two categories: control and configuration functions handled by the microcomputer, and time-critical processing operations handled by the dedicated signal processing circuit. This segmentation allows multiple types of signal processing to be performed simultaneously without compromising processing rate for critical operations.
Solution Approach 2:
The patent replaces the purely software-based signal processing approach with a hybrid architecture that uses hardware-based dedicated circuits for computationally intensive operations. This substitution of mechanical/computational approach enables enhanced functionality while maintaining high processing rates for critical signal processing tasks.
Data Source
AI summary
A MCP semiconductor device with an “anti-shake” function includes a driver chip and a logic chip. The logic chip includes a correction signal processing unit which obtains a value for vibration of apparatus based on a vibration detection signal to generate a correction signal and a control signal output unit having a plurality of types of signal output sections which output a vibration control signal in accordance with the correction signal to a vibration correction control unit which executes vibration correction control for an optical component. The logic chip further includes a driver output terminal which outputs the vibration control signal to the driver chip, an external output terminal which outputs the control signal to an external circuit other than the driver chip, and also an output switch unit which connects one of the plurality of signal output sections with the driver output terminal or the external output terminal.