Speech Input Component Selection with Variable Touch Areas
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Solution Overview
Problem
Current speech recognition systems face challenges in allowing users to quickly and reliably correct incorrectly recognized voice inputs, particularly in environments where user attention cannot be diverted, such as in vehicles, as existing methods require precise selection or awareness of recognition probabilities.
Innovation Solution
A method and device that process voice inputs to determine recognition probabilities for each component, adjusting the selection parameter based on these probabilities, allowing easier selection of low-probability components through a touchscreen interface with variable touch areas, enabling users to correct errors without precise targeting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the user is presented with all recognized components equally for selection, then the user can select any component for correction, but the user cannot quickly identify and select components with low recognition probability, leading to increased selection time and user distraction
Solution Approach 1:
The patent applies visual highlighting to components with low recognition probability, making them stand out from correctly recognized components. This allows users to quickly identify potential errors without having to carefully examine each component, thereby reducing the time needed to locate and correct speech recognition errors while maintaining high accuracy.
2Ease of operation
If the touch area for selecting components is made uniform, then the interface is simple to implement, but components with low recognition probability are difficult to select, requiring precise user interaction that increases distraction
Solution Approach 1:
The patent implements variable touch areas where components with low recognition probability are assigned larger selection areas than components with high recognition probability. This local differentiation allows users to easily select potentially erroneous components with larger target areas, reducing the precision required for interaction and minimizing user distraction, especially in safety-critical environments like vehicle operation.
3Device complexity
If all components are displayed with the same visual prominence, then the display is simple and clean, but the user cannot quickly identify components that need correction
Solution Approach 1:
The patent uses visual highlighting to differentiate components based on their recognition probability. Components with low recognition probability are highlighted to draw user attention, enabling rapid identification of potential errors. This approach maintains display simplicity while significantly improving the speed of error correction by guiding user attention to the most likely candidates for correction.
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a method for selecting a component (13) of a speech input. In the method according to the invention, the speech input is captured, wherein the speech input comprises several components (13). The captured speech input is processed, and a text is recognized. For each component (13) of the speech input, a recognition probability is determined, which indicates the probability with which the component (13) has been correctly recognized. The recognized text of the speech input is displayed on a screen (3), and for each component (13), the value of a parameter for selecting the component (13) is set by means of an input device (4, 9) depending on the determined recognition probability. Furthermore, the invention includes a device (1, 10) for selecting a component (13) of a speech input.