Analog Circuit for Three-Dimensional Sound Without Distortion

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Solution Overview

Problem

Existing three-dimensional sound systems simulate a three-dimensional effect by manipulating two-dimensional signals, resulting in sound distortion.

Innovation Solution

A circuit device that compares the amplitude and phase of sound signals in two independent channels to create a real-time three-dimensional sound effect by amplifying the dominant signal based on phase differences, eliminating the need for software manipulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If software is used to simulate three-dimensional effect by manipulating two-dimensional signals, then a three-dimensional sound effect can be achieved, but sound distortion occurs

Engineering Contradiction:

Improvethree-dimensional sound effectVSAvoidsound distortion

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent replaces software-based signal manipulation with a hardware circuit system that directly processes sound signals. The circuit uses operational amplifiers, capacitors, and resistors to physically manipulate sound waves in three-dimensional space, eliminating the distortion inherent in software simulation while achieving genuine spatial audio effects

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The circuit dynamically changes multiple parameters including amplitude, phase, frequency, and time delay of sound signals simultaneously. By adjusting these parameters through analog circuit elements, the system creates authentic three-dimensional sound positioning without the quality loss associated with digital signal processing

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If software manipulation is used to create three-dimensional effect, then spatial direction can be simulated, but the system complexity increases

Engineering Contradiction:

Improvespatial direction simulationVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent replaces complex software algorithms with a relatively simple analog circuit consisting of operational amplifiers, capacitors, and resistors. This hardware implementation achieves spatial direction simulation through physical signal processing, reducing overall system complexity while maintaining three-dimensional audio capabilities

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The circuit automatically analyzes the stereo signal and independently determines spatial positioning without requiring external software processing. The operational amplifiers and timing circuits self-adjust to create appropriate time delays and amplitude variations, eliminating the need for complex software control systems

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8792647B2Circuit device for providing a three-dimensional sound system

Publication Date: 2014.07.29 SIDHU DALWINDER SINGH

AI summary

A circuit device for a three-dimensional sound system is disclosed. The device circuit contains a plurality of resistors, capacitors and transistors. The circuit is an analog circuit creating an actual three-dimensional sound system where the listener can perceive sound coming from different spatial directions. The circuit device accomplishes this by sensing the amplitude and phase difference between the sound signals.