Active Noise Cancelling Power Cord for Low-Frequency Audio Noise
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Solution Overview
Problem
Existing noise reduction methods in audio and recording equipment are inadequate in addressing low-frequency noise, which degrades sound quality and affects subsequent judgments.
Innovation Solution
An active noise cancelling cord that transmits power through a ground wire, live wire, and neutral wire to engage a noise reduction mode, offsetting noise frequencies and producing a magnetic field spectrum of 7.83 Hz to enhance sound quality by correcting phase imbalances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional three-pin plug noise reduction structure is used, then stable power is supplied, but noise generation is not effectively reduced
Solution Approach 1:
The patent introduces an intermediary active noise cancellation circuit between the power supply and audio signal path, which processes and cancels noise before it affects the audio output, thereby maintaining stable power while reducing noise generation
Solution Approach 2:
The invention replaces the conventional passive electrical connection with an active electronic system that uses signal processing and magnetic field generation to actively counteract noise, transforming the noise reduction approach from passive to active
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
The solution effectively reduces noise interference, restoring smooth sinusoidal waveforms and improving tone quality by using a magnetic field spectrum of 7.83 Hz, thereby enhancing the overall sound quality of audio.
Implementation Method 1
the noise reduction mode compares a frequency (such as a power of 60 Hz), and a noise of the audio is offset by a reverse signal
Implementation Method 2
the tone quality mode produces magnetic field spectrum of low-frequency around 7.83 Hz (also known as the Schumann wave) to enhance sound quality
Data Source
AI summary
An active noise cancelling cord contains: a plug including a ground-wire conductor, a live-wire conductor, and a neutral-wire conductor; a socket including a protrusion in which a first receiving orifice, a second receiving orifice and a third receiving orifice are defined; and a noise reduction mode. The body is connected with a plug and a socket, and a shell is located between the plug and the socket. The conductive set includes a ground wire electrically connected with a ground-wire conductor and a first receiving orifice, a live wire electrically connected with a live-wire conductor and a second receiving orifice, a neutral wire electrically connected with a neutral-wire conductor and a third receiving orifice, a plug anti-noise wire electrically connected with a live-wire conductor, and the noise reduction mode, and a socket anti-noise wire electrically connected with the second receiving orifice and the noise reduction mode.