Voice Command Routing via Biometric Authentication
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Solution Overview
Problem
Existing voice-based command systems in multi-device environments lack effective user authentication and privacy, as responses to voice commands are often broadcasted to all devices, compromising user privacy and security.
Innovation Solution
A primary device communicates with secondary devices across a network, using biometric data such as ear features and voice recognition to identify users and authenticate them, ensuring that responses to voice commands are routed only to the intended user's device, thereby enhancing privacy and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If voice command responses are broadcasted to all devices in a multi-device environment, then device simplicity and ease of operation are improved, but user privacy and security deteriorate
Solution Approach 1:
The patent segments the broadcast response into targeted responses by dividing the audience into specific user groups based on biometric authentication. Instead of sending the same response to all devices, the system identifies which specific users authorized the voice command and routes responses only to their associated devices, thus maintaining operational simplicity while protecting privacy.
Solution Approach 2:
The patent introduces biometric authentication data as an intermediary between the voice command input and the response output. This intermediary layer verifies user identity before routing responses, acting as a mediator that filters which devices receive responses based on authenticated user identities, thereby protecting privacy without complicating the user interface.
2Object-affected harmful factors
If biometric authentication is implemented to identify users and route responses, then user privacy and security are improved, but device complexity increases
Solution Approach 1:
The patent implements a universal biometric authentication framework that can identify users across multiple devices and communication channels. The same authentication mechanism works for voice commands, notification signals, and direct audio signals, providing a multi-functional solution that handles various input types through a single authentication pathway, thereby managing complexity through standardization.
Solution Approach 2:
The patent performs biometric authentication in advance before routing responses, extracting and verifying user identity information from incoming signals beforehand. By preparing authentication data upfront and establishing user-device associations in advance, the system reduces the computational complexity during the actual response routing process.
3Measurement precision
If user identification based on biometric data is performed, then response routing accuracy is improved, but processing time increases
Solution Approach 1:
The patent extracts biometric data and performs preliminary user identification before the full processing cycle completes. By identifying users early in the signal processing chain—from notification signals, audio signals, or voice commands—the system establishes user-device mappings in advance, reducing the time required for accurate response routing.
Solution Approach 2:
The patent applies different processing levels to different signal types, extracting biometric data locally at the point of input. For voice commands, voice biometrics are extracted immediately; for other signals, device-associated biometric data is used. This localized approach avoids unnecessary full-system processing and reduces overall processing time while maintaining routing accuracy.
Data Source
AI summary
A primary device arranged to communicate with one or more secondary devices across a communications network. The primary device comprises at least one processor and memory comprising computer executable instructions, which when executed by the at least one processor, are configured to: receive an audio signal comprising a voice command associated with a user; determine a secondary device associated with the user from the one or more secondary devices; and transmit a response to the voice command to the determined secondary device.