Voice Assistant Wake-Up Duration Extension
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Solution Overview
Problem
Voice assistant devices often switch to sleep mode prematurely due to static follow-up durations, leading to missed user requests and user burden to provide requests within a short time frame, without clear awareness of the device's operational mode.
Innovation Solution
A method and apparatus that dynamically extend the wake-up duration of voice assistant devices based on the probability of subsequent user inputs, determined by intent analysis, historic data, and contextual factors, ensuring the device remains in wake-up mode until a subsequent input is received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the voice assistant device uses a static follow-up duration, then the device can switch to sleep mode efficiently, but the device may switch to sleep mode prematurely and miss user requests
Solution Approach 1:
The patent applies dynamics by transitioning from a static follow-up duration to a dynamic wake-up duration that adapts based on user behavior. The system calculates a probability of subsequent voice input and adjusts the wake-up duration accordingly, allowing the device to remain active longer when users are likely to provide follow-up requests and switch to sleep mode when unlikely, thus resolving the contradiction between reliable request reception and time loss.
2Reliability
If the voice assistant device extends the wake-up duration, then subsequent voice inputs can be received, but the device consumes more energy
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the wake-up duration parameter based on calculated probability of subsequent voice input. Instead of using a fixed extended duration, the system modifies this parameter in real-time based on user behavior patterns, intent analysis, and contextual factors, ensuring energy is consumed only when necessary to maintain wake-up mode for potentially useful interactions.
Solution Approach 2:
The system implements feedback by continuously monitoring user interactions, calculating probability of subsequent voice input, and using this information to adjust the wake-up duration. This closed-loop approach ensures that the device extends wake-up mode only when the feedback indicates a high likelihood of useful subsequent input, thereby balancing reliable input reception with energy conservation.
3Productivity
If the voice assistant device uses a short static time period for follow-up mode, then the device can quickly return to sleep mode, but users are burdened to provide requests within a short time frame
Solution Approach 1:
The patent resolves this contradiction by making the follow-up mode duration dynamic rather than static. The system adjusts the time period based on calculated probability of subsequent voice input, allowing flexible time frames that adapt to user behavior patterns. This enables the device to be responsive while giving users adequate time to provide requests without artificial constraints.
Data Source
AI summary
Embodiments of present disclosure relates to a voice assistant device and method for controlling the voice assistant device. The voice assistant device comprising receiver configured to receive at least one voice input from user, when operated in wake-up mode. Intent associated with the at least one voice input from the at least one user. Further, probability of issuance of a subsequent voice input from the at least one user is determined based on at least one of the intent, historic data and one or more contextual factors. An extended wake-up duration of the voice assistant device is estimated, when the probability is greater than a predefined threshold value. Further, duration of the wake-up mode is extended for the extended wake-up duration to receive the subsequent voice input from the at least one user.