Sound-Based Authentication for Secure Electronic Material Distribution

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing information processing systems fail to securely distribute and manage electronic materials within a predetermined space, as they can be leaked outside the intended area due to the lack of effective authentication and deletion mechanisms.

Innovation Solution

An information processing system that uses sound frequencies for authentication and deletion control, where a host apparatus outputs a predetermined sound, and client apparatuses respond to authenticate and receive data, with the system ensuring that material is only accessible within a specific space by converting passwords into sound and periodically checking for client apparatus presence.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If material is distributed to portable terminals using terminal IDs, then participants can read the material, but the material may be transferred outside the meeting room and leaked

Engineering Contradiction:
ImproveMaterial distribution to participantsVSAvoidInformation leakage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary authentication by detecting portable terminals within the meeting room before distributing material. This ensures that only authorized participants present in the meeting room receive the material, preventing unauthorized distribution and potential leakage.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors the meeting room for portable terminals and provides feedback on participant presence. This feedback mechanism allows the system to control material access dynamically, ensuring that material can only be accessed when authorized terminals are detected in the meeting room.

Inventive Principle:
Principle #23Feedback

2Reliability

If a server stores and manages participant terminal IDs, then material distribution can be controlled, but the system requires complex device and server infrastructure

Engineering Contradiction:
ImproveMaterial distribution controlVSAvoidServer and device requirements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses the portable terminals themselves to perform authentication and material distribution functions. The terminals autonomously participate in the authentication process by responding to detection signals, eliminating the need for a centralized server to manage terminal IDs and reducing overall system complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The portable terminals serve multiple functions: they act as both the detection target and the authentication device. The same terminal that is detected in the meeting room also performs the authentication process, reducing the need for separate authentication infrastructure and simplifying the system architecture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 approach ensures that electronic materials are securely distributed and deleted within a predetermined space, preventing unauthorized access and leakage by using sound-based authentication and periodic checks for client apparatus presence.

Implementation Method 1

a first information processing apparatus which outputs a sound having a predetermined frequency (frequencies)

Methodology Applied
Scientific EffectSound output:

Implementation Method 2

a second information processing apparatus which collects the sound that is output by the first information processing apparatus

Methodology Applied
Scientific EffectSound collection:

Data Source

PatentUS9100823B2Information processing system and information processing apparatus
Publication Date: 2015.08.04 RICOH CO LTD
  • US9100823B2 patent drawing
  • US9100823B2 patent drawing
  • US9100823B2 patent drawing

AI summary

An information processing system includes a first information processing apparatus that outputs a sound of a predetermined frequency; and a second information processing apparatus that collects the sound that is output from the first information processing apparatus, and outputs a response to the sound of the predetermined frequency to the first information processing apparatus. The first information processing apparatus transmits predetermined data to the second information processing apparatus that has output the response to the sound of the predetermined frequency.