Secure Transaction System Using Inaudible Audio Signals
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Solution Overview
Problem
Users face difficulties in identifying and purchasing products they see or hear about in audio-visual content, as current systems lack the ability to efficiently extract and utilize product information from inaudible signals, leading to extensive searches and potential failure in finding the desired product.
Innovation Solution
A system that includes a mobile device and a server, where the mobile device receives audio-visual signals from digital devices and extracts product information from the inaudible portion, using a trusted execution environment to verify the source and integrity of the information, authenticate users, and facilitate secure transactions by linking them to authentic merchant sites.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If users conduct extensive searches using Internet search engines to locate product information, then they may find the desired product, but they waste significant time and effort
Solution Approach 1:
The system embeds product information (such as product IDs, names, and merchant details) directly into audio-visual content before transmission. This preliminary embedding of information allows users to instantly access product details without conducting extensive searches, resolving the contradiction between information availability and search time
Solution Approach 2:
The patent introduces an intermediary system consisting of audio extraction modules, product information databases, and merchant site linkers that automatically extract product information from audio signals and connect users to merchant sites. This intermediary infrastructure eliminates the need for manual searching while ensuring accurate product information delivery
2Ease of operation
If product information is embedded in audio signals for easy access, then product identification becomes efficient, but security and authenticity verification become challenging
Solution Approach 1:
The system implements feedback mechanisms where extracted product information is verified against authenticated databases, and merchant site authenticity is confirmed through verification protocols. This feedback loop ensures that while product identification remains easy through audio extraction, the reliability and authenticity of the information are maintained through continuous verification
Solution Approach 2:
Merchant information and product databases are pre-authenticated and secured before being linked to audio content. This preliminary security setup ensures that when users easily access product information through audio signals, the underlying data integrity and merchant authenticity are already verified, resolving the security challenge
Data Source
AI summary
Method to perform secure transactions with a digital device starts with microphone receiving signal generated by the digital device. Signal includes product information in inaudible portion of signal that identifies at least one product associated with a timeframe of signal. Trusted execution environment (TEE) generates start signal based on first sensor signal from first sensor that may be inertial sensor. Start signal is generated when first sensor signals indicate that user wishes to perform transactions with digital device. TEE verifies an origin of the product information to determine integrity of the origin and data. Display device displays purchasing information to a user that is based on the product information. TEE authenticates user based on second sensor signal from second sensor that may be biometrics sensor. TEE completes transaction to purchase at least one product by providing payment information associated with user. Other embodiments are also described.