Context-Aware Voice Guidance for Navigation
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Solution Overview
Problem
Current map-based applications, especially those using 3D maps, are often processing-intensive, leading to inefficiencies, slowness, and limited functionality due to the demands of rendering three-dimensional data, resulting in a suboptimal user experience.
Innovation Solution
A navigation application with a touch-sensitive screen and multi-touch interface that offers multiple views (2D and 3D turn-by-turn navigation, realistic road signs, dynamic instruction generation, voice recognition, and integration with other routing apps, featuring smooth transitions and adaptive controls to optimize user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If 3D maps are used for navigation, then the visual realism and spatial understanding are improved, but the processing intensity and energy consumption increase significantly
Solution Approach 1:
The system dynamically switches between 2D and 3D map views based on user interaction and navigation context. The 3D view is rendered only when needed (e.g., during turn-by-turn navigation), while 2D views are used for overview and routing phases, optimizing energy consumption while maintaining visual realism when required.
Solution Approach 2:
The patent changes the rendering parameters of the map display, transitioning between 2D and 3D representations. By adjusting the dimensionality parameter of the map view, the system balances visual realism and energy consumption, allowing users to experience 3D realism during critical navigation moments while conserving energy during less demanding phases.
2Loss of information
If 3D maps are used for navigation, then the spatial understanding is improved, but the application speed and efficiency decrease
Solution Approach 1:
The system dynamically adjusts the map dimensionality based on the navigation phase. During route planning and overview, 2D maps are used for fast rendering and high productivity. During turn-by-turn navigation where spatial understanding is critical, the system transitions to 3D views to enhance spatial comprehension, accepting the temporary performance cost.
Solution Approach 2:
The navigation process is segmented into different phases (route planning, overview, turn-by-turn navigation), and the map dimensionality is optimized for each phase. This segmentation allows the system to maintain high productivity during planning while providing enhanced spatial understanding during execution.
3Ease of operation
If multiple views and smooth transitions are implemented, then the user experience is improved, but the device complexity and processing demands increase
Solution Approach 1:
The system implements dynamic view transitions between 2D and 3D maps based on user interactions and navigation context. This dynamic approach enhances user experience by providing appropriate visual information at the right time while managing device complexity through context-aware rendering decisions rather than continuously maintaining multiple complex views.
4Ease of operation
If voice recognition navigation guidance is added, then the ease of operation is improved, but the processing intensity and energy consumption increase
Solution Approach 1:
The navigation system integrates multiple guidance modalities (visual maps, voice recognition, haptic feedback) into a unified interface. This multi-functionality allows the system to provide hands-free operation through voice recognition while also offering visual and tactile alternatives, enhancing ease of operation while managing energy consumption through selective activation of different modalities.
Data Source
AI summary
A context-aware voice guidance method is provided that interacts with other voice services of a user device. The voice guidance does not provide audible guidance while the user is making a verbal request to any of the voice-activated services. Instead, the voice guidance transcribes its output on the screen while the verbal requests from the user are received. In some embodiments, the voice guidance only provides a short warning sound to get the user's attention while the user is speaking on a phone call or another voice-activated service is providing audible response to the user's inquires. The voice guidance in some embodiments distinguishes between music that can be ducked and spoken words, for example from an audiobook, that the user wants to pause instead of being skipped. The voice guidance ducks music but pauses spoken words of an audio book in order to provide voice guidance to the user.