Voice Output Control Device Prioritizing Information Values

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Solution Overview

Problem

Existing voice output systems in vehicles fail to adjust voice outputs flexibly when multiple voice information items with different content data are present simultaneously, leading to potentially important information being deleted without exception, thus reducing the chances of providing necessary information to the user.

Innovation Solution

A voice output control device that includes a control unit capable of comparing the information values of multiple voice information items and adjusting their output based on their relative importance, considering the presence or absence of corresponding display content, to prioritize higher value information items and vary their information values accordingly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If voice output is adjusted by fixed priority order in adjustment table, then output scheduling is simple and deterministic, but flexibility in handling different content types is reduced and important information may be deleted without exception

Engineering Contradiction:
Improvevoice output scheduling simplicityVSAvoidadaptability to different content data
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by making the voice output priority dynamic rather than fixed. The determination unit dynamically determines whether to output voice based on the number of times content data has been input, and the variable value setting unit dynamically adjusts information values based on display output status. This allows the system to adapt its voice output behavior to different situations while maintaining operational simplicity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies local quality by treating different content data differently rather than applying a uniform priority rule. The system selectively applies voice output suppression only to content data that has been input multiple times, while preserving voice output for content data with different information values. This localized approach maintains simplicity for common cases while adding adaptability for specific situations.

Inventive Principle:
Principle #3Local quality

2Loss of information

If voice output is cancelled without exception when same content data is input multiple times, then redundant information is eliminated, but necessary information may be deleted and information delivery reliability is reduced

Engineering Contradiction:
Improveredundant information eliminationVSAvoidinformation delivery reliability
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The patent applies parameter changes by modifying the information value parameter based on the display output status. When display output is not performed, the variable value setting unit increases the information value, which can change the voice output determination from suppression to approval. This parameter adjustment ensures that important information is not deleted even when input multiple times, while still eliminating redundant information when appropriate.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies feedback by using the determination result of whether display output is performed to adjust the information value. This feedback mechanism allows the system to respond to the actual output status and make appropriate adjustments to voice output decisions, ensuring that necessary information is preserved while redundant information is eliminated.

Inventive Principle:
Principle #23Feedback

3Device complexity

If fixed priority order is used for voice output, then system complexity is low, but information value differentiation among multiple voice information items is not achieved

Engineering Contradiction:
Improvecontrol system complexityVSAvoidinformation value differentiation
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The patent applies preliminary action by pre-setting information values for different voice information items before output determination. The variable value setting unit preliminarily adjusts these information values based on display output status, enabling the system to differentiate information values without adding complex real-time decision-making logic. This maintains low system complexity while achieving information value differentiation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10163435B2Voice output control device, voice output control method, and recording medium
Publication Date: 2018.12.25 DENSO CORP
  • US10163435B2 patent drawing
  • US10163435B2 patent drawing
  • US10163435B2 patent drawing

AI summary

A voice output control device includes a control unit. The control unit controls a voice output device to output voice information items according to output requests transmitted from multiple output request units. The control unit compares a high and low relationship of information values preliminary set in the voice information items corresponding to the output requests, and controls the voice output device to output preferentially the voice information item having a higher information value. The control unit determines whether a display device outputs a content corresponding to each voice information item. The control unit sets each information value variably according to a determination result.