Audio Output Control Device for Seamless Vehicle Audio Scheduling
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Solution Overview
Problem
Existing audio output interfaces in vehicles fail to consider temporal characteristics of audio information, leading to unnatural interruptions and incomplete transmission of important information when prioritizing multiple audio outputs.
Innovation Solution
An audio output control device that acquires end time information and delay permissible information for earlier and later audio outputs, determining whether to wait or interrupt based on their temporal relationship, and prioritizing outputs based on information values to ensure seamless and meaningful audio delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If audio outputs are arbitrated using a fixed priority arbitration table, then the output management becomes simple and deterministic, but the temporal characteristics of audio information are not considered, causing unnatural interruptions and incomplete information transmission
Solution Approach 1:
The patent transforms the static arbitration table into a dynamic system that considers temporal characteristics. The arbitration device now evaluates not only priority levels but also the timing relationships between audio outputs, allowing the arbitration criteria to adapt based on whether significant content has been transmitted and whether delay is permissible, thus resolving the contradiction between simple management and reliable information transmission
Solution Approach 2:
The patent introduces new parameters (significant content transmission status and delay permission) to the arbitration process. By changing the arbitration parameters from simple priority levels to include temporal characteristics, the system can make more informed decisions about whether to interrupt or wait, thereby maintaining information transmission completeness while preserving manageable output control
2Speed
If later audio information with higher priority is output immediately when requested, then the response time is reduced, but earlier audio information may be interrupted before significant content is transmitted, causing information loss
Solution Approach 1:
The patent applies preliminary action by checking whether significant content has been transmitted before allowing interruption. The arbitration device evaluates the transmission status of significant content in advance, and only permits interruption of earlier audio outputs after their significant content has been successfully transmitted, thus preventing information loss while maintaining fast response for high-priority outputs
Solution Approach 2:
The patent introduces feedback mechanisms where the arbitration device continuously monitors the transmission status of significant content and uses this information to make real-time arbitration decisions. This feedback loop ensures that interruption decisions are based on actual transmission progress, preventing information loss while allowing rapid response to high-priority requests when appropriate
3Reliability
If earlier audio information is allowed to complete before outputting later audio information, then information transmission completeness is maintained, but the response time for high-priority audio information increases
Solution Approach 1:
The patent applies local quality by differentiating between different parts of audio information (significant content vs. non-significant content) and applying different arbitration rules to each. The system allows interruption only after significant content has been transmitted, while being more restrictive about interrupting during significant content transmission, thus maintaining information completeness while optimizing response time for high-priority outputs
4Adaptability or versatility
If audio outputs are interrupted at any timing for arbitration, then flexible priority management is achieved, but the audio information becomes unnatural and meaningless to the user
Solution Approach 1:
The patent applies preliminary anti-action by preemptively checking whether significant content has been transmitted before allowing interruption. This preliminary check prevents the harmful effect of unnatural interruptions by ensuring that only audio outputs whose significant content has been fully transmitted can be interrupted, thus maintaining user comprehension naturalness while preserving priority management flexibility
Data Source
AI summary
An audio output control device includes a control device that adjusts an output of earlier audio information and an output of later audio information in a situation where a request for outputting the later audio information is made before the output of the earlier audio information ends. The control device includes: a first acquisition device that acquires end time information of the earlier audio information; a second acquisition device that acquires delay permissible information of the later audio information; and a first determination device that determines whether a wait for outputting the later audio information is available, according to the end time information and the delay permissible information. When the wait is available, the control device outputs the later audio information after preferentially executing the output of the earlier audio information.