Audio Output Device Charging State Transmission via Intermediary
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Solution Overview
Problem
Users of Bluetooth earphones face difficulties in immediately recognizing battery charging issues when the earphones are inserted into a charging case, as the charging state is not easily identifiable by the connected electronic device.
Innovation Solution
An audio output device with a battery, wireless communication circuit, and control circuit that detects electrical connection with a power supply device, releases communication with an electronic device, starts charging, and transmits charging state information when the battery residual capacity meets a designated condition, allowing the electronic device to receive charging state updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the Bluetooth earphone releases the communication connection with the electronic device when inserted into the charging case, then power consumption is reduced and charging is enabled, but the user cannot identify the charging state through the electronic device
Solution Approach 1:
The patent introduces an intermediary mechanism (wireless communication circuit) that enables the charging case to transmit charging state information to the electronic device without requiring a continuous Bluetooth connection between the earphone and the electronic device. The charging case acts as a mediator that receives charging status data from the earphone and forwards it to the electronic device, thus resolving the contradiction between power saving and information availability.
2Loss of information
If the Bluetooth earphone maintains communication connection with the electronic device while in the charging case, then charging state information can be transmitted, but power consumption increases and charging efficiency decreases
Solution Approach 1:
The patent extracts the communication function from the earphone during charging by enabling the charging case to handle information transmission independently. The earphone's communication circuit is deactivated or put in low-power mode during charging, while the charging case's communication circuit takes over the task of transmitting charging state information to the electronic device, thus improving charging efficiency while maintaining information availability.
3Volume of moving object
If the battery volume is reduced to make the earphone smaller, then user comfort is improved, but battery duration is shortened
Solution Approach 1:
The patent implements a nested structure where the earphone units are placed inside the charging case. The charging case contains not only the earphones but also a power supply battery that can charge the earphone batteries. This nested arrangement allows the earphone to maintain a small size with a compact battery while the larger capacity battery is housed in the charging case, effectively extending the usable duration without increasing the earphone's volume.
Data Source
AI summary
An audio output device is provided. The audio output device includes a battery, a wireless communication circuit, and a control circuit electrically connected to the battery and the wireless communication circuit, wherein the control circuit releases a communication connection with an electronic device using the wireless communication circuit if an electrical connection between the audio output device and a power supply device is sensed, starts charging of the battery of the audio output device by using the power supplied from the power supply device, temporarily activates the wireless communication circuit if either a residual battery quantity of the audio output device or a residual battery quantity of the power supply device satisfies a designated charging condition during charging of the battery of the audio output device, and transmits information about the charging state of the audio output device or the power supply device to the electronic device.