Wireless Headset Reset Circuit Using Charging Contacts
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Solution Overview
Problem
Wireless headsets often experience abnormal operations due to unstability in device connections or sudden shutdowns, yet they lack space for additional resetting buttons due to minimal design trends, necessitating a reset mechanism without increasing physical buttons.
Innovation Solution
A wireless headset design incorporating a charging contact, microcontroller, and resetting circuit that utilizes a voltage dividing circuit, inverter, integrator, schmitt trigger, differentiator, and inverter to generate a low-level resetting signal when connected to a charging case, allowing the headset to reboot without an additional pressing button.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a resetting button is added to the wireless headset, then the headset can be reset to solve running errors, but the design becomes more complex and the appearance is no longer minimized
Solution Approach 1:
The patent merges the resetting function with the existing charging contact by integrating a resetting circuit that uses the charging voltage to generate resetting signals. This eliminates the need for a separate resetting button while maintaining the ability to reset the headset, thus resolving the contradiction between reliability improvement and design complexity.
Solution Approach 2:
The charging contact is given dual functionality: it serves both as a power charging interface and as a resetting trigger. The resetting circuit detects the charging voltage and automatically generates resetting signals, allowing the same physical contact to perform multiple functions without increasing device complexity.
2Ease of operation
If a resetting button is added to the wireless headset, then the headset can be reset before new running process, but the headset surface requires additional buttons which contradicts minimal design trend
Solution Approach 1:
The resetting operation is merged with the charging operation. When the user places the headset in the charging case, the charging contact automatically triggers both charging and resetting functions through the resetting circuit, eliminating the need for separate physical buttons and maintaining minimal headset appearance.
Solution Approach 2:
The resetting circuit automatically detects the presence of charging voltage and self-activates to generate resetting signals without requiring additional user input. The system serves itself by using the charging action to automatically trigger the reset function, maintaining ease of operation while preserving minimal design.
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
Ensures stable operation by resetting the headset before use, enhancing operational reliability without the need for extra buttons.
Implementation Method 1
the voltage dividing circuit is capable of reducing the charging voltage into a dividing voltage
Implementation Method 2
the first inverter is electrically connected to an outputting end of the voltage dividing circuit to invert the dividing voltage and output an inverting signal
Implementation Method 3
the integrator is electrically connected between the first inverter and the schmitt trigger to integrate the inverting signal and to output an integration signal
Implementation Method 4
the schmitt trigger compares the integration signal with the resetting signal, and the schmitt trigger outputs a rectifying signal
Implementation Method 5
the differentiator is electrically connected between the schmitt trigger and the second inverter to differentiate the rectifying signal and output a differential signal
Implementation Method 6
the second inverter is electrically connected to the resetting port to reinforce the differential signal and output the resetting signal
Data Source
AI summary
A wireless headset includes a charging contact set on a housing surface of the wireless headset, a microcontroller arranged inside the wireless headset, and a resetting circuit. The microcontroller is set to reset the wireless headset when the microcontroller receives a resetting signal. The charging contact is electrically connected to the microcontroller to charge a first battery module arranged inside the wireless headset. The resetting circuit is arranged inside the wireless headset. The resetting circuit is electrically connected between the charging contact and the microcontroller. When the charging contact is connected to an external power source. The resetting circuit sends a resetting signal to the microcontroller, and the resetting circuit resets the wireless headset. The microcontroller is equipped with a resetting port to receive the resetting signal.