Wireless Earphone Channel Auto-Assignment via Dock Position Detection
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Solution Overview
Problem
Current multimedia playing systems require users to manually identify left and right sound channels in earphones to achieve a stereo effect, which is inconvenient, especially when using portable electronic devices.
Innovation Solution
A multimedia playing system with a portable electronic device and single-ear type wireless earphones that automatically selects the sound channels based on the relative position of the dock ports and user, using a controller, audio processor, and detecting circuit to provide the correct sound channel signal to each earphone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual identification of sound channels is required, then users can achieve stereo effect, but user convenience deteriorates
Solution Approach 1:
The system automatically detects which earphone is inserted in which ear and autonomously assigns the correct sound channel (left or right) without requiring user intervention. The controller detects the relative position between the user and dock ports, then automatically provides the appropriate sound channel signal to each earphone, making the system self-configuring.
Solution Approach 2:
The system performs preliminary detection of the user's relative position to the dock ports before audio playback begins. The controller obtains the first relative position between the first dock port and the user when the earphone separates from the dock port, and pre-configures the sound channel assignment based on this detected position.
2Ease of operation
If automatic channel selection is implemented, then user convenience improves, but system complexity increases
Solution Approach 1:
The patent replaces manual mechanical identification (users reading L/R labels or color codes) with an automated detection system. The controller uses electrical/connection-based detection to identify which earphone is connected to which dock port, substituting mechanical user action with electronic automation.
3Reliability
If sound channels are not automatically assigned, then device complexity remains low, but stereo effect quality deteriorates
Solution Approach 1:
The system continuously monitors the connection status between earphones and dock ports, detecting when earphones are inserted or removed. Based on this feedback, the controller dynamically adjusts and reassigns sound channels to ensure the correct left/right audio signal is always delivered to the appropriate earphone, maintaining stereo quality throughout use.
Data Source
AI summary
A multimedia playing system is provided. A portable electronic device includes a first dock port, a second dock port, a power module, an audio processor and a controller. When a first single-ear wireless earphone connects with the first dock port, the power module charges the first single-ear wireless earphone via the first dock port. When a second single-ear wireless earphone connects with the second dock port, the power module charges the second single-ear wireless earphone via the second dock port. The audio processor provides a left sound channel signal and a right sound channel signal. When the first single-ear wireless earphone separates from the first dock port, the controller provides one of the left sound channel signal and the right sound channel signal to the first single-ear wireless earphone according to a relative position between the first dock port and a user.