Vehicle Microphone Controller Voice Data Encryption
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Solution Overview
Problem
Consumer concerns about the privacy of voice data collected by vehicles for various applications, such as phone calls and virtual assistants, are not adequately addressed by existing technologies.
Innovation Solution
A vehicle computer system with a microphone controller that encrypts voice input using a key store and communicates with application controllers possessing decryption keys, enabling secure voice recognition sessions by encrypting and decrypting voice data within the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If voice data is collected and transmitted for various applications, then the functionality and versatility of the vehicle system is improved, but consumer privacy concerns worsen due to potential unauthorized access to sensitive voice information
Solution Approach 1:
The system performs encryption of voice data at the source (microphone controller) before transmission or storage, and pre-distributes decryption keys to authorized application controllers. This preliminary security action ensures that voice data remains protected throughout its lifecycle, allowing versatile utilization while preventing unauthorized access and addressing privacy concerns from the outset
Solution Approach 2:
The patent introduces encryption keys and decryption keys as intermediary security mechanisms between the voice data collection system and various applications. These cryptographic intermediaries act as mediators that control access to voice data, enabling legitimate applications to utilize voice information while blocking unauthorized access, thus resolving the contradiction between versatility and privacy protection
2Object-affected harmful factors
If voice data is encrypted to protect privacy, then consumer privacy concerns are addressed, but system complexity increases due to key management and encryption/decryption operations
Solution Approach 1:
The system segments the encryption and decryption functions into separate dedicated components: a microphone controller that encrypts voice data and stores encryption keys, and application controllers that hold corresponding decryption keys. This segmentation distributes the cryptographic burden across multiple specialized units rather than centralizing complexity in one location, making the overall system more manageable and scalable
Solution Approach 2:
The microphone controller autonomously performs encryption of voice data using its stored keys, and application controllers independently decrypt data using their own keys. This self-service approach eliminates the need for a centralized key management server or complex coordination protocols, reducing system complexity while maintaining strong privacy protection through distributed cryptographic operations
Data Source
AI summary
A microphone controller includes a processor programmed to receive voice input from one or more microphones to be utilized in a voice recognition session initiated by the microphone controller. Further the microphone controller includes a key store including one or more keys configured to encrypt the received voice input to an encrypted voice data.