Audio Signal Conveyance with Noise Filtering

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Solution Overview

Problem

Existing audio player systems face interference and noise degradation due to electromagnetic noise in environments, which affects the clarity of audio signals when using auxiliary connections.

Innovation Solution

A multi-pin unit configured for receiving audio and ground signal paths, coupled with a cable unit and a filter unit to establish signal paths from an input to an output locus, with a connector pin unit presenting the signals in a single-pin configuration and filtering out predetermined noise components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If auxiliary audio connections are used for higher volume listening, then audio output capability is improved, but electromagnetic noise interference increases

Engineering Contradiction:

Improveaudio output capabilityVSAvoidelectromagnetic noise interference

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

A dedicated audio cable with multi-pin connector serves as an intermediary transmission medium between the audio player and auxiliary device. The cable includes separate conductors for audio signals and ground, with filtering components integrated to block electromagnetic noise while allowing audio frequencies to pass through, thus mediating between the source and destination while protecting against interference.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The ground path in the cable system is utilized to actively counteract electromagnetic noise interference. By providing a dedicated ground conductor and integrating filtering components, the system converts the potentially harmful electromagnetic noise into a controlled signal that can be filtered and rejected, turning the noise problem into an opportunity for improved signal integrity through active noise cancellation and filtering.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Adaptability or versatility

If multiple signal paths are transmitted through a cable, then audio signal transmission capability is improved, but susceptibility to electromagnetic noise increases

Engineering Contradiction:

Improveaudio signal transmission capabilityVSAvoidelectromagnetic noise susceptibility

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The cable system segments the transmission paths into separate conductors for different audio signals (left channel, right channel) and ground. Each conductor is electrically isolated and can be individually filtered, allowing multiple signal paths to be transmitted simultaneously while protecting each path from electromagnetic interference through dedicated filtering on each conductor.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Filtering components are integrated as intermediaries within the cable system, positioned between the audio player output and the auxiliary device input. These filters act as mediators that selectively allow audio frequency signals to pass while blocking electromagnetic noise, protecting the multiple signal paths without requiring external filtering equipment.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 electromagnetic noise interference, improving sound clarity at auxiliary sound units by filtering out noise, thus enhancing audio signal transmission.

Implementation Method 1

a filter unit coupled with the at least one cable unit for filtering at least one predetermined signal component from the at least two audio signal paths

Methodology Applied

Scientific EffectElectromagnetic filtering: Filter (electronic)

Data Source

PatentUS8706273B2Apparatus and method for conveying audio signals from an input locus to an output locus

Publication Date: 2014.04.22 GENERAL WIRELESS OPERATIONS INC

AI summary

An apparatus for conveying audio signals from an input locus to an output locus remote from the input locus includes: (a) a multi-pin unit configured for receiving at least three signal paths at the input locus, including at least two audio signal paths for conveying the audio signals and at least one ground path; (b) at least one cable unit coupled with the multi-pin unit, substantially spanning an interval between the multi-pin unit and the output locus, and presenting the at least three signal paths at the output locus; (c) a connector pin unit coupled with the at least one cable unit at the output locus, and presenting the at least three signal paths in a single-pin configuration; and (d) a filter unit coupled with the at least one cable unit for filtering at least one predetermined signal component from the at least two audio signal paths.