In-Vehicle Voice Interface Using Visual Phrase Prompts
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Solution Overview
Problem
Users of existing voice command systems need to listen and recognize emphasized voice commands, which is inconvenient and requires improvement for better usability.
Innovation Solution
An information processing device with a touch panel and voice processing capabilities, offering non-voice and voice operation modes, where in voice mode, example phrases are displayed on the panel for users to utter voice commands, allowing the device to execute corresponding actions based on the generated voice data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the device uses voice command emphasizing means to selectively emphasize words uttered as voice commands, then the device can identify command words, but the user needs to listen and recognize emphasized words which reduces convenience
Solution Approach 1:
The patent transitions from a single voice-output dimension to multiple dimensions by introducing visual display (touch panel) alongside voice output. The touch panel displays example phrases and operational feedback, creating a multi-sensory interface that eliminates the need for users to listen and recognize emphasized words, thereby improving convenience while maintaining command recognition accuracy
Solution Approach 2:
The touch panel serves as an intermediary between the voice processing system and the user. Instead of directly emphasizing words through voice alone, the system uses the touch panel to display example phrases and operational status, mediating the communication and eliminating the need for users to actively recognize emphasized words in the voice output
2Productivity
If the device provides only voice operation mode, then the device can execute commands efficiently, but users cannot see example phrases or operational status which reduces usability
Solution Approach 1:
The touch panel is designed to serve multiple functions simultaneously: displaying example phrases for voice commands, showing operational status feedback, and providing visual guidance to users. This multi-functionality enhances usability without compromising command execution efficiency, as the visual information is provided passively while voice commands continue to be processed efficiently
3Ease of operation
If the device displays operation buttons on touch panel, then users can see available commands, but users must manually operate buttons which reduces voice command efficiency
Solution Approach 1:
The system dynamically adapts its interface based on the selected operational mode. In voice operation mode, the touch panel displays example phrases and provides visual feedback while the system prioritizes voice command processing. The interface transitions smoothly between modes, maintaining both visual accessibility and voice command efficiency through dynamic behavior adjustment
Data Source
AI summary
For an information processing device capable of accepting user's voice and executing processing based on the voice, convenience for a user is improved. A control portion 20 of an in-vehicle device 12 includes a non-voice operation mode and a voice operation mode as operation modes, and in the case that the operation mode is the non-voice operation mode, displays an operation button on a touch panel 26, and when it is detected that the operation button is operated, executes the processing corresponding to the operated operation button, and in the case that the operation mode is a voice operation mode M2, displays on the touch panel 26 an example phrase image indicating an example of a phrase to be uttered by the user in the case of making the processing corresponding to the operation button be executed instead of the operation button, and when voice data based on the phrase indicated by the example phrase image is generated, executes the processing corresponding to the operation button.