Active Noise Cancelling Headset Power Supply via Audio Cable
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Solution Overview
Problem
The power supply operation of active noise reduction headsets is highly complex due to the need for lithium-ion batteries and chargers, which complicates power management and frequent battery replacements.
Innovation Solution
The method involves using a terminal, such as a mobile phone, to transmit a signal of first voltage to the headset, which processes it to obtain a signal of second voltage, transmitted to a noise reduction chip, allowing the headset to operate and recharge the battery, thereby simplifying power supply by utilizing the microphone cable as a power cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lithium-ion battery and charger are used to supply power to the noise reduction chip, then the headset can operate independently, but the power supply operation becomes highly complex
Solution Approach 1:
The patent extracts the power supply function from the traditional battery-based system and transfers it to the audio cable. The cable that originally only transmitted audio signals now also carries power, eliminating the need for a separate battery and charger system. This simplifies the power supply operation while reducing device complexity.
Solution Approach 2:
The audio cable is given multiple functions: it continues to transmit audio signals while also serving as a power supply conduit. By making the cable multi-functional, the patent eliminates the need for separate power management components, thereby simplifying both operation and system complexity.
2Duration of action of moving object
If a lithium-ion battery is used to supply power, then the headset can function without external power sources, but frequent battery replacements are required
Solution Approach 1:
The patent implements preliminary action by continuously charging the headset through the audio cable during normal use. Instead of waiting for the battery to deplete and then replacing or recharging it, the system maintains continuous power supply and charging, eliminating the need for periodic battery replacement and associated time loss.
3Device complexity
If the audio cable is used to transmit both audio signals and power, then the power supply system is simplified, but the cable must handle multiple functions simultaneously
Solution Approach 1:
The audio cable is designed to perform multiple functions simultaneously: audio signal transmission and power supply. This multi-functionality reduces the need for separate components and simplifies the overall power supply system, as the same infrastructure serves dual purposes without requiring additional adaptors or interfaces.
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
This solution effectively resolves the complexity of power supply in active noise reduction headsets by enabling real-time energy acquisition and reducing the need for frequent battery replacements, improving user experience and convenience.
Implementation Method 1
receiving, by the active noise reduction headset, a signal of first voltage transmitted by the terminal; and processing, by the active noise reduction headset, the signal of the first voltage to obtain a signal of second voltage
Data Source
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Figure 3
Figure 4-a~5
AI summary
Embodiments of the present invention provide a method, an apparatus, and a system for supplying power to an active noise reduction headset, which relate to the field of electronic products and can resolve a problem that a power supply operation of the active noise reduction headset is highly complex. The method for supplying power to an active noise reduction headset includes: receiving a signal of first voltage transmitted by the terminal; processing the signal of the first voltage to obtain a signal of second voltage, where the second voltage is less than the first voltage, and the signal of the second voltage is transmitted to a noise reduction chip of the active noise reduction headset, so that the noise reduction chip of the active noise reduction headset acquires the signal of the second voltage to implement a noise reduction function. The method, apparatus, and system for supplying power to an active noise reduction headset provided in the embodiments of the present invention are used to supply power to the active noise reduction headset.