Shared Input Reset Circuit for Robust TWS Earphone Recovery
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Solution Overview
Problem
True wireless stereo (TWS) earphones face challenges in providing a dedicated reset terminal due to size constraints, necessitating improved robustness in reset operations without such a terminal.
Innovation Solution
An information processing device and method that utilize a common input terminal to detect and reset built-in circuits by distinguishing between different signal types based on voltage levels, ensuring robustness by resetting only when specific voltage conditions are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated reset terminal is provided, then reset reliability is improved, but device size increases
Solution Approach 1:
The patent applies multi-functionality by enabling a common input terminal to serve both as a general signal input terminal and as a reset terminal. The terminal can distinguish between different signal types (normal input signals and reset signals) based on voltage level detection, allowing one terminal to perform multiple functions without requiring a dedicated reset terminal, thus reducing housing size while maintaining reset reliability
2Volume of moving object
If a common input terminal is used for both reset and other signals, then device size is reduced, but reset robustness deteriorates
Solution Approach 1:
The patent applies parameter changes by utilizing voltage level as a distinguishing parameter to differentiate between reset signals and normal input signals. The detection unit detects the voltage level of the input signal, and when the voltage exceeds a predetermined threshold, the system determines it is a reset signal. This parameter-based differentiation enables robust reset operations through a shared terminal without confusion with other signals
3Measurement precision
If voltage threshold detection is implemented, then signal differentiation accuracy is improved, but detection complexity increases
Solution Approach 1:
The patent replaces complex mechanical or circuit-based signal differentiation mechanisms with a simpler voltage level detection approach. By using a detection unit that monitors voltage thresholds, the system achieves accurate signal differentiation without requiring complex circuitry or mechanical switches, thus improving signal differentiation accuracy while keeping detection complexity manageable
Data Source
AI summary
The present technology relates to an information processing device and an information processing method capable of reset with excellent robustness without a dedicated reset terminal being provided.A built-in circuit is reset in a period of a first point of time to a second point of time, wherein an input signal input from a common input terminal into which a reset signal for instructing reset of the circuit and a signal of a different type from the reset signal are input is detected at the first point of time to have a first voltage or higher at which the input signal is determined to be the reset signal, and the reset signal is detected at the second point of time to have a second voltage or lower that is lower than the first voltage. This technology can be applied to a TWS earphone and the like.