Acoustic Authentication Signal Modulation for Manual Code Elimination
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Solution Overview
Problem
Conventional two-factor authentication methods relying on Bluetooth, WIFI, cellular networks, or hardware are cumbersome, unreliable, and vulnerable as they require manual input of numeric or alphanumeric codes.
Innovation Solution
The use of acoustic frequencies, specifically ultrasonic, audible, and hypersonic frequencies, to transmit data between devices for authentication purposes, eliminating the need for Bluetooth, wireless, or network connectivity, and reducing user interactions through acoustic signal modulation and decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional two-factor authentication uses Bluetooth, WIFI, cellular networks or additional hardware to transmit authentication data, then authentication can be completed, but the method becomes vulnerable, unreliable, and cumbersome requiring manual input of numeric or alphanumeric codes
Solution Approach 1:
The patent replaces manual mechanical input (typing codes) with acoustic signal transmission. The mobile device automatically transmits authentication data through acoustic waves (speaker to microphone), eliminating the need for users to manually enter codes while maintaining security through acoustic channel authentication
Solution Approach 2:
The patent introduces acoustic waves as an intermediary medium for authentication data transmission. Instead of direct network communication or manual input, authentication data is encoded into acoustic signals that transmit through the air medium, providing both convenience and enhanced security through physical channel verification
2Productivity
If acoustic frequencies are used to transmit authentication data between devices, then user interactions are reduced and authentication becomes more efficient, but ambient noise may interfere with signal transmission
Solution Approach 1:
The patent applies local quality by using specific ultrasonic frequency ranges (above human hearing) for data transmission. This localized frequency selection allows authentication signals to operate in a dedicated acoustic band that is less susceptible to ambient noise, enabling efficient automatic authentication while maintaining signal integrity
Solution Approach 2:
The patent converts the limitation of inaudible ultrasonic frequencies into a benefit by using frequencies that cannot be heard by humans. This transforms potential signal weakness into an advantage where the signals remain imperceptible to ambient acoustic interference, enabling reliable automatic authentication without user awareness or manual intervention
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
This method provides a secure and efficient authentication process by filtering out ambient noise and minimizing user interactions, creating a reliable and unidirectional or bidirectional communication channel for device authentication and access control.
Implementation Method 1
The transmitter may comprise a decoder that decodes an acoustic signal to obtain the authentication data
Implementation Method 2
The receiver may comprise a detector that detects an acoustic signal
Data Source
AI summary
In particular embodiments, a method for transmitting authentication data using acoustical means, comprising: encoding, by a first device, information into an acoustic signal; emitting, by an audio output component of the first device, the acoustic signal; detecting, by an audio input component of a second device, the acoustic signal; and decoding, by the second device, the acoustic signal into one or more pieces of information.