Voice Recognition Security for Image Processing Apparatus

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Solution Overview

Problem

Voice input for confidential information in image forming apparatuses poses a security risk due to potential leakage as users may inadvertently read aloud sensitive information during operation instructions.

Innovation Solution

An image processing apparatus equipped with a voice recognizer, hardware processor, and authenticator that recognizes voice input, performs authentication, and invalidates confidential information if it matches the recognized data, providing a notification for security measures to prevent leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If voice input is used for confidential information, then ease of operation is improved, but security reliability deteriorates due to potential leakage

Engineering Contradiction:
Improveease of operationVSAvoidsecurity reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary authentication to determine if voice input contains confidential information before executing the requested operation. If confidential information is detected, the system proactively invalidates the authentication result and prevents the operation, thereby securing against potential leakage before it can occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system introduces an intermediary authentication check between voice input and operation execution. This intermediary layer analyzes the voice input to detect confidential information and mediates whether to proceed with the operation, thus resolving the conflict between ease of use and security.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If voice input mode is shifted to operation unit input mode to prevent leakage, then security reliability is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvesecurity reliabilityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system applies partial authentication - it only invalidates the voice input when confidential information is actually detected, rather than universally switching to operation unit input mode. This selective approach maintains ease of operation for non-confidential inputs while ensuring security when needed.

Inventive Principle:
Principle #16Partial or excessive action

3Reliability

If confidential information is invalidated after voice recognition, then security reliability is improved, but loss of information occurs

Engineering Contradiction:
Improvesecurity reliabilityVSAvoidloss of information
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The system converts the potential harm of voice input leakage into a benefit by using voice recognition to detect confidential information. The same voice recognition capability that could expose confidential information is used to identify and protect against it, invalidating the authentication when confidential information is detected.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

4Reliability

If authentication is performed to determine execution authority, then security reliability is improved, but device complexity increases

Engineering Contradiction:
Improvesecurity reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The authentication unit performs multiple functions: it authenticates user identity, detects confidential information in voice input, and determines execution authority. By making the authentication unit universal and multi-functional, the system avoids adding separate complex components while maintaining high security reliability.

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

Data Source

PatentUS11830492B2Image processing apparatus, image forming apparatus, confidential information management method, and recording medium
Publication Date: 2023.11.28 KONICA MINOLTA INC
  • US11830492B2 patent drawing
  • US11830492B2 patent drawing
  • US11830492B2 patent drawing

AI summary

An apparatus includes: a hardware processor that executes, based on recognized information obtained by voice recognition, a process requiring an execution authority; and an authenticator that performs authentication to determine, using first confidential information that is preset, whether the execution authority has been given. Upon determining that the recognized information corresponds to the preset confidential information, the hardware processor provides a user with a predetermined notification regarding security of the preset confidential information.