Vehicle Voice Control Device for Hands-Free Call Audio Adjustment
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Solution Overview
Problem
Existing technologies for controlling voice output during hands-free calls in vehicles do not allow external speakers to adjust voice settings inside the vehicle, limiting user satisfaction.
Innovation Solution
A control device mounted on the vehicle recognizes voice commands from external terminals, interprets the requested operations, selects appropriate microphone positions within the vehicle cabin, and transmits the collected voice to the external terminal, enabling external speakers to adjust audio settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If voice output is controlled based on occupant attributes and speaker attributes, then voice output control is improved, but external speakers cannot adjust voice settings inside the vehicle
Solution Approach 1:
The patent introduces a voice recognition system as an intermediary that allows external speakers to control internal voice settings. The system recognizes voice commands from external speakers and translates them into control actions for the vehicle's internal audio system, enabling remote control without direct interaction with vehicle controls.
Solution Approach 2:
The control system is designed to accept voice commands from multiple sources (both internal occupants and external speakers) and perform multiple functions (adjusting voice output for different occupants). This universal design allows the same system to serve both internal control needs and external adjustment requirements.
2Measurement precision
If multiple microphone positions are used to collect voice, then voice collection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent divides the voice collection function into multiple independent microphone units positioned at different locations within the vehicle. Each microphone is responsible for collecting voice from its specific position, and the system selectively activates appropriate microphones based on the situation, reducing the need for complex omnidirectional collection systems.
Solution Approach 2:
The system dynamically selects and activates specific microphone positions based on real-time conditions such as which occupant is speaking and the direction of the voice source. This dynamic activation reduces the number of microphones needing simultaneous operation, simplifying the overall system while maintaining high voice collection accuracy when needed.
Data Source
AI summary
The control device includes a control unit. The control unit recognizes a voice command transmitted from a telephone terminal outside the vehicle. The control unit interprets the operation content requested by the recognized voice command. The control unit selects one or more positions at which the sound is picked up by the microphone in the vehicle cabin based on the interpreted operation content. The control unit picks up a voice uttered at one or more selected positions by a microphone and transmits the picked up voice to a telephone terminal.