Broadband Audio Navigation Signals for Driver Distraction Reduction
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Solution Overview
Problem
Navigation functions in mobile devices often provide audio or visual instructions that distract users, particularly when driving, as they require attention away from the task at hand.
Innovation Solution
The method involves determining broadband audio signals associated with navigation instructions, such as white noise, pink noise, or blue noise, to convey instructions without visual distraction, with signal characteristics and volume adjustments based on navigation events and distances, allowing users to focus on their task while receiving navigation cues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional audio or visual navigation instructions are provided to users, then navigation information is conveyed clearly, but user distraction increases and safety decreases
Solution Approach 1:
The patent transforms traditional narrowband audio navigation instructions into broadband audio signals containing multiple frequency components. This parameter change in signal bandwidth creates a distinctive auditory experience that conveys navigation information while minimizing distraction from other audio sources, thus resolving the contradiction between information delivery and user distraction.
Solution Approach 2:
The patent replaces traditional visual display mechanisms with audio-based navigation instructions. By substituting the visual-mechanical interface with an audio interface using broadband signals, the system maintains navigation information delivery while eliminating the need for visual attention, thereby reducing user distraction and improving safety.
2Object-affected harmful factors
If broadband audio signals are used for navigation instructions, then user distraction is minimized, but signal complexity and processing requirements increase
Solution Approach 1:
The patent extracts and emphasizes specific frequency components within the broadband audio signal to convey navigation information. By selectively enhancing certain frequency ranges while maintaining the overall broadband character, the system reduces processing complexity compared to manipulating the entire spectrum, thus resolving the contradiction between minimizing distraction and reducing signal processing complexity.
3Loss of information
If audio navigation instructions are provided at higher volume levels, then instruction clarity improves, but distraction from other audio sources increases
Solution Approach 1:
The patent applies different frequency characteristics to different navigation instruction types (e.g., turn left vs. turn right). By assigning distinct broadband frequency profiles to different instructional categories, the system maintains clarity through frequency differentiation rather than volume increases, thus resolving the contradiction between instruction clarity and audio distraction.
Data Source
AI summary
Methods, apparatuses, and computer program products are herein provided for providing broadband audio signal navigation instructions. A method may include determining a broadband audio signal associated with at least one navigation instruction. The method may further include causing the broadband audio signal to be provided to the user. The broadband audio signal may be a representation of an audio signal with components in all frequencies capable of being at least one of perceived or broadcast by a speaker. Corresponding apparatuses and computer program products are also provided.