Acoustic Locality Check for Secure Content Transmission
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Solution Overview
Problem
Existing content transmission technologies face challenges in ensuring user convenience while maintaining security and privacy, particularly in scenarios where personal or paid content is shared between devices, as users often struggle with complex technical descriptions and unintended content reception.
Innovation Solution
A content processing apparatus and method utilizing sound for locality checks, which generates acoustic sound for determining peripheral devices and ensuring secure content transmission by mixing data with preset basic sounds, such as music or inaudible frequency band sounds, to facilitate secure and convenient content sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RTT/TTL-based locality check is used for security, then content transmission security is improved, but user convenience deteriorates due to complex confirmation screens and technical descriptions
Solution Approach 1:
The patent replaces the traditional visual confirmation interface (display screens showing RTT/TTL values and technical descriptions) with an acoustic confirmation system. The transmitting device emits ultrasonic sound waves containing encoded locality check information, and the receiving device detects these waves through its microphone. This substitution eliminates the need for users to interpret complex technical parameters on screens, while maintaining security through acoustic signal verification of device proximity and identity.
Solution Approach 2:
The patent introduces acoustic signals as an intermediary medium to convey locality check information between devices. Instead of directly displaying technical parameters or requiring users to process visual information, the system uses ultrasonic waves as a carrier to transmit encoded data about device identity and location. This intermediary acoustic channel simplifies the user experience while preserving the security verification function.
2Ease of operation
If default reception acceptance is set for user convenience, then ease of operation is improved, but security and privacy deteriorate due to potential unintended content reception
Solution Approach 1:
The patent performs preliminary acoustic verification of device identity and location before enabling content reception. The receiving device must successfully detect and verify the ultrasonic signal from the transmitting device before content transmission is authorized. This preliminary acoustic confirmation ensures that only the intended receiving device can accept content, preventing unintended reception while maintaining a simple user interface without complex confirmation screens.
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 solution ensures secure and user-friendly content transmission by accurately identifying peripheral devices and preventing unintended content reception, enhancing user convenience without compromising security and privacy.
Implementation Method 1
a speaker configured to output the acoustic sound
Implementation Method 2
a microphone configured to receive response sound output from an external apparatus which receives the acoustic sound
Data Source
AI summary
A content processing apparatus using sound includes a sound processor configured to generate acoustic sound for a locality check when an event in which locality check is to be executed is generated, a speaker configured to output the acoustic sound, a microphone configured to receive response sound output from an external apparatus which receives the acoustic sound, and a controller configured to determine the external apparatus which outputs the response sound as a peripheral apparatus.