Low Frequency Stimulator Beat Extraction Music Synchronization

Solution Overview

Problem

Conventional low frequency stimulators lack variability in electrical stimulation, leading to user boredom and diminished therapy or diet effects due to tolerance from repetitive pulse patterns, and require manual recognition of operation modes through LED indicators.

Innovation Solution

A low frequency stimulator that extracts beats from music using sound pressure comparisons and applies corresponding electrical stimulation through electrode pads, incorporating a beat extraction unit and pulse generation unit to provide dynamic stimulation, and includes a body fat measuring unit using body impedance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the low frequency stimulator uses various pulse patterns to prevent tolerance, then the therapy effect is maintained, but the device complexity increases

Engineering Contradiction:

Improvetherapy effectVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the pulse pattern variable rather than fixed. The controller dynamically changes the pulse pattern based on elapsed time, transitioning from an initial pattern to a second different pattern after a predetermined time period. This temporal variation prevents the user's body from developing tolerance to a single repetitive pattern while maintaining manageable device complexity through a systematic switching mechanism.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the low frequency stimulator generates the same low frequency repeatedly, then the device operation is simple, but the user loses interest and becomes mentally bored

Engineering Contradiction:

Improvedevice operationVSAvoiduser engagement

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements periodic action by alternating between different low frequency pulses at predetermined time intervals. The generator produces a first low frequency pulse pattern initially, then switches to a second different low frequency pulse pattern after the predetermined time elapses. This periodic variation maintains user engagement and prevents mental boredom while keeping the device operation relatively simple through automated timing-based switching.

Inventive Principle:

Principle #19Periodic action

3Device complexity

If the low frequency stimulator uses a single operation mode with fixed pulse pattern, then the device complexity is low, but the body acquires tolerance and therapy effect deteriorates

Engineering Contradiction:

Improvedevice complexityVSAvoidtherapy effect

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent applies dynamics by making the pulse pattern variable rather than fixed. The controller dynamically changes the pulse pattern based on elapsed time, transitioning from an initial pattern to a second different pattern after a predetermined time period. This temporal variation prevents the user's body from developing tolerance to a single repetitive pattern while maintaining manageable device complexity through a systematic switching mechanism.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements periodic action by alternating between different low frequency pulses at predetermined time intervals. The generator produces a first low frequency pulse pattern initially, then switches to a second different low frequency pulse pattern after the predetermined time elapses. This periodic variation maintains user engagement and prevents mental boredom while keeping the device operation relatively simple through automated timing-based switching.

Inventive Principle:

Principle #19Periodic action

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 stimulator maintains user engagement by varying electrical stimulation intensity with music beats, preventing tolerance and allowing for effective muscle exercise and body fat measurement without separate devices.

Implementation Method 1

a beat extraction unit that extracts a beat by comparing sizes of sound pressures of acoustic signals having different frequencies

Methodology Applied

Scientific EffectSound pressure comparison: Sound

Implementation Method 2

a current flows from one electrode pad to the other electrode pad through the body of the user, and in this process, the electrical stimulation is generated in the body of the user

Methodology Applied

Scientific EffectElectrical conduction through body: Conduction (electrical)

Implementation Method 3

measuring body fat of the user through the electrical pads

Methodology Applied

Scientific EffectBody impedance measurement: Electrical Resistance

Data Source

PatentUS9233243B2Low frequency stimulator using music and diet system including low frequency stimulator

Publication Date: 2016.01.12 MOON CHAN GON

AI summary

The present invention relates to a low-frequency stimulator using music, and a weight-loss assisting system having a low-frequency stimulator. The low-frequency stimulator according to an embodiment of the present invention includes: a beat extracting unit extracting a beat through a sound pressure magnitude comparison between one or more acoustic signals having different frequencies generated when music is played on a music player; a pulse generator generating a pulse having the same magnitude as that of the extracted beat; and a pair of electrode pads attached to a user's body and applying an electrical stimulus having an intensity corresponding to the magnitude of the generated pulse to the user's body.