Sound ID System Local Pattern Recognition for Privacy

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Solution Overview

Problem

Existing voice-activated devices, such as Amazon Alexa or Google Assistant, raise privacy concerns as they transmit and store users' conversations and sounds in the cloud, allowing unknown entities to access and monitor personal data.

Innovation Solution

A Sound ID System that uses a device with a microphone to recognize pre-recorded sound patterns and keywords, only transmitting specific actions to the cloud or other devices when these patterns are detected, ensuring that no other sound or conversation data is stored or transmitted, maintaining user privacy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If voice-activated devices transmit and store all conversations and sounds in the cloud, then the device can provide comprehensive voice assistance and processing capabilities, but user privacy is compromised as unknown entities can access and monitor personal data

Engineering Contradiction:
Improvevoice assistance capabilityVSAvoidprivacy risk
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts only the essential functionality (voice pattern recognition and keyword detection) from the cloud dependency, allowing the device to operate with minimal cloud interaction. Only pre-defined actions are transmitted to the cloud, while all other processing occurs locally, thus maintaining privacy while preserving core voice assistance capabilities

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements local processing of voice data by storing pre-recorded sound patterns and keywords in the device's memory and performing recognition operations locally using a processor. This ensures that personal conversations and sounds remain on the device and are not transmitted to the cloud, maintaining user privacy while enabling voice-activated functionality

Inventive Principle:
Principle #3Local quality

2Object-affected harmful factors

If the device processes and stores all sound data locally, then user privacy is maintained, but the device complexity and computational requirements increase

Engineering Contradiction:
Improveprivacy protectionVSAvoidprocessing complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-recording sound patterns, signatures, and keywords in the device's memory before operation. This allows the processor to perform simple pattern matching operations rather than complex speech analysis, significantly reducing computational requirements while maintaining privacy through local processing

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements partial action by only transmitting pre-determined actions to the cloud when specific sound patterns are recognized, rather than transmitting all processed data. This minimizes cloud interaction and reduces the computational burden of data management while maintaining privacy protection

Inventive Principle:
Principle #16Partial or excessive action

3Object-affected harmful factors

If the device transmits only pre-determined actions to the cloud, then privacy is maintained, but the voice processing capability is limited compared to full cloud-based processing

Engineering Contradiction:
Improveprivacy preservationVSAvoidvoice processing capability
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The patent segments the voice processing functionality into two parts: local pattern recognition and keyword detection, and cloud-based action execution. This segmentation allows the device to maintain privacy by keeping sensitive voice data local while still leveraging cloud capabilities for executing pre-defined actions, balancing privacy preservation with functional capability

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11749268B2Sound identification system for privacy
Publication Date: 2023.09.05 DEVICEBOOK INC
  • US11749268B2 patent drawing

AI summary

A “SOUND ID SYSTEM” comprise a Device with a microphone that continuously monitors the surrounding environment. Pre-recorded personalized or unique sound patterns, signatures, and/or key words, and/or their derivatives, are stored in the Device. When such a pre-determined pre-recorded sound pattern, signature, or key words, or their derivatives, are recognized by the Device, a corresponding pre-determined action or action sequence will be sent to the Cloud, or other devices, to execute. Such other devices can attach, co-habitat, and wired/wirelessly connect to the Device, or share some components with the Device. If the Device does not recognize any particular pre-recorded sound pattern, signature or key words, or their derivatives, then the Device will not transmit to disclose to any outside device or other entity, any monitored sound information.