Audio Signal Data Transfer Using Server-Side Decoding
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Solution Overview
Problem
Conventional data transmission through audio signals between devices in close proximity faces challenges such as decoding difficulties in noisy environments, misuse of audio files, and specific hardware prerequisites, which hinder secure and efficient data transfer.
Innovation Solution
A system and method utilizing an application server, audio signal emitters and receivers, proximity detectors, and frequency selectors to establish a secure channel for data transfer between devices using anti-duplication frequencies, enabling financial transactions and ensuring device proximity and security through a communication network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional audio signal transmission is used for data transfer between devices in close proximity, then data transfer capability is enabled, but decoding accuracy deteriorates in noisy environments
Solution Approach 1:
The patent introduces an application server as an intermediary between transmitting and receiving devices. The server receives audio signals containing encoded data, performs decoding operations, and retrieves corresponding data from databases. This mediator approach transfers the complex decoding task from resource-constrained mobile devices to a powerful server environment, enabling accurate data recovery even from noisy audio signals without requiring sophisticated local hardware
Solution Approach 2:
The patent replaces the mechanical/audio-based decoding process with a server-based computational system. Instead of relying on local audio processing hardware and algorithms on mobile devices, the system substitutes this with centralized server-side processing that uses database lookups and application logic to accurately recover transmitted data, effectively replacing the mechanical decoding challenge with a software-based solution
2Ease of operation
If audio files are transmitted openly for data transfer, then data transfer simplicity is maintained, but security deteriorates due to unauthorized access
Solution Approach 1:
The application server acts as a secure intermediary that mediates all data transfers. Audio signals are transmitted openly through the air, but the server intercepts these signals, validates them against stored records in its databases, and only processes authenticated transactions. This mediator approach maintains the simplicity of audio-based transmission while adding a security layer that prevents unauthorized access and misuse
Solution Approach 2:
The system performs preliminary actions by pre-storing transaction data, device identifiers, and authentication information in the application server's databases before actual transfers occur. When an audio signal is received, the server can immediately verify it against pre-stored records, enabling quick security validation without complicating the transmission process. This preliminary preparation of security credentials maintains operational simplicity while ensuring robust security
3Adaptability or versatility
If conventional audio decoding is used without hardware prerequisites, then device compatibility is improved, but decoding efficiency deteriorates
Solution Approach 1:
The application server serves as a powerful intermediary that handles all computationally intensive decoding and data retrieval operations. Mobile devices with varying hardware capabilities only need to perform simple audio playback and recording, while the server performs the complex work of decoding audio signals, querying databases, and processing transactions. This divides the workload such that device compatibility is maintained (any device with a speaker and microphone can participate) while overall decoding efficiency is dramatically improved through server-side processing power
Data Source
AI summary
The embodiments herein provide a method and system for establishing data communication through a secure channel using audio signals. The method comprises registering a plurality of users to an application, initiating the application by a registered user, emitting audio signals using the audio signal emitter to establish a secure channel with the other participating device, receiving audio signals from the other participating device, validating the other participating device using a validating module, detecting the proximity of the other participating device using a proximity detector, establishing a secure channel between the participating devices, wherein the secure channel is established using audio channels, and enabling financial transaction between the participating devices.