Mouse Control Chip Multiplexing Pin Voltage Detection
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Solution Overview
Problem
Conventional mouse devices require multiple pins to detect different operating states, increasing manufacturing costs and limiting functionality, as each pin is dedicated to detecting a single control component.
Innovation Solution
A mouse device utilizing a control chip with a multiplexing pin and a voltage detection circuit, where the multiplexer couples the multiplexing pin to different voltage sources based on the operating state of control components, allowing the voltage detection circuit to identify states through detected voltage values, thereby reducing the number of pins needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple pins are used to detect different operating states of control components, then the detection accuracy and functionality are improved, but the manufacturing cost and device complexity increase
Solution Approach 1:
The patent applies multiplexing technology where a single pin on the control chip can detect multiple different operating states by sequentially connecting to different voltage sources through external switching components. This allows one pin to perform multiple detection functions that would traditionally require multiple dedicated pins, thereby reducing pin count while maintaining detection accuracy
Solution Approach 2:
The patent implements periodic switching between different voltage sources connected to the multiplexing pin. The external circuitry periodically connects different voltage levels to the pin based on the operating state of different control components, allowing the control chip to detect multiple states through time-division multiplexing rather than requiring simultaneous dedicated pins for each state
2Adaptability or versatility
If multiple pins are used to detect different operating states, then the operating functions are enhanced, but the manufacturing cost increases
Solution Approach 1:
By making the single multiplexing pin universal capable of detecting multiple control component states through sequential voltage level detection, the system achieves enhanced operating functions without proportionally increasing pin count and associated manufacturing costs
Solution Approach 2:
The patent merges multiple detection functions into a single pin interface by combining external switching components with the control chip's multiplexing capability. This consolidation reduces the total number of pins required, directly lowering manufacturing costs while preserving all necessary operating functions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces the number of pins required while maintaining functional capabilities, saving energy and allowing for the identification of multiple control components' states using a single multiplexing pin, thus lowering manufacturing costs and enhancing operational efficiency.
Implementation Method 1
the voltage detection circuit is configured to detect a voltage value on the multiplexing pin
Data Source
AI summary
There is provided a mouse device including a control chip and at least one control component. The control chip includes a voltage detection circuit coupled to the at least one control component through at least one multiplexing pin and detects at least one voltage value on the at least one multiplexing pin using the voltage detection circuit thereby identifying an operating state of the at least one control component.