Adjustable Ultrasonic Transducer Module for Directional Audio

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Solution Overview

Problem

Conventional audio devices generate omnidirectional sound, making it difficult to direct audio specifically to a user while maintaining flexibility and reducing power consumption, especially in wearable devices.

Innovation Solution

An electronic module with an adjustable substrate and transducers configured to radiate ultrasonic waves, which intersect and demodulate to form directional audible sound waves, allowing for customizable sound projection and reduced power consumption by naturally aligning transducers on a non-planar surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If transducers are arranged on a planar surface, then manufacturing is simpler, but transducer alignment precision deteriorates

Engineering Contradiction:

Improvetransducer arrangement simplicityVSAvoidtransducer alignment precision

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent applies curvature by transitioning from a planar surface to a spherical or curved surface for transducer arrangement. This curvature enables precise angular positioning of transducers relative to each other, improving alignment precision while maintaining manufacturing feasibility through standardized curved substrates.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent moves the transducer arrangement from a two-dimensional planar surface to a three-dimensional curved or spherical surface. This dimensional change provides additional degrees of freedom for positioning, allowing precise spatial alignment of transducers in multiple directions simultaneously.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Device complexity

If transducers are fixed in position, then device structure is simpler, but adaptability to different users deteriorates

Engineering Contradiction:

Improvedevice structure simplicityVSAvoiduser adaptability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic adjustability to the transducer positions, allowing the device to adapt to different users and usage scenarios. The adjustable mechanism enables reconfiguration of transducer arrangements while maintaining a relatively simple base structure when in fixed positions.

Inventive Principle:

Principle #15Dynamics

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

Enables directional sound delivery to specific users while reducing power consumption by naturally aligning transducers on a non-planar surface, enhancing flexibility in audio device design and user experience.

Implementation Method 1

The first transducer is configured to radiate a first ultrasonic wave. The second transducer is configured to radiate a second ultrasonic wave

Methodology Applied

Scientific EffectUltrasonic wave radiation and demodulation: Ultrasound

Implementation Method 2

The first ultrasonic wave and the second ultrasonic wave are demodulated to form a second sonic wave audible for a body

Methodology Applied

Scientific EffectAcoustic demodulation:

Data Source

PatentUS11792565B2Electronic module

Publication Date: 2023.10.17 ADVANCED SEMICON ENG INC

AI summary

An electronic module is provided. The electronic module includes a first transducer and a second transducer. The first transducer is configured to radiate a first ultrasonic wave. The second transducer is configured to radiate a second ultrasonic wave. A location of the first transducer is configured to be adjustable with respect to the second transducer.