Earphone Recognition Stabilizing Time Prevents Erroneous Interrupts
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Solution Overview
Problem
Portable terminals face issues in accurately recognizing the type of earphone connected due to unstable connections and erroneous interrupt signals generated during insertion and separation, leading to unintended operations such as pausing music or changing audio paths.
Innovation Solution
A method and apparatus that detect interrupt signals associated with changes in connection states, determine if a preset stabilizing time has elapsed, and maintain the connection state if it remains consistent with the pre-interrupt state, preventing erroneous operations by stabilizing the connection between the earphone and interface unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the interrupt terminal is installed in a side of the ear jack hole, then the connection stability is improved, but the device generates multiple interrupt signals during insertion and separation procedures
Solution Approach 1:
The patent introduces a stabilizing time period that begins when an interrupt signal is generated. During this period, the system waits before processing the interrupt signal to determine connection state changes. This preliminary waiting action filters out transient signals caused by unstable connections during insertion and separation, allowing the system to distinguish between genuine connection changes and temporary contact instability.
2Measurement precision
If the interrupt terminal contacts the ear plug during insertion, then the interrupt signal is generated for recognition, but the connection state fluctuates causing erroneous operations
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors whether the connection state changes after the stabilizing time period. If the connection state remains unchanged after the stabilizing period, the interrupt signal is discarded. This feedback loop ensures that only stable, genuine connection changes trigger recognition actions, preventing erroneous operations while maintaining accurate earphone type detection.
3Speed
If the interrupt signal is processed immediately upon generation, then the response speed is improved, but erroneous operations occur due to unstable connections
Solution Approach 1:
The patent introduces a stabilizing time period that begins when an interrupt signal is generated. During this period, the system waits before processing the interrupt signal to determine connection state changes. This preliminary waiting action filters out transient signals caused by unstable connections during insertion and separation, allowing the system to distinguish between genuine connection changes and temporary contact instability.
Data Source
AI summary
A method and an apparatus for preventing an erroneous operation according to generation of an interrupt signal during separation and mounting procedures of an earphone are provided. The method includes detecting generation of an interrupt associated with a change in a connection state between the earphone and an interface unit, determining the connection state when the generation of the interrupt is detected, determining whether a preset stabilizing time for stabilizing the change in the connection state has elapsed, determining whether the determined connection state is identical with a connection state before the generation of the interrupt when the preset stabilizing time elapses, and maintaining the connection state before the generation of the interrupt when the determined connection state is identical with the connection state before the generation of the interrupt.