Sensor Device Anonymizing Personal Data Using GAN
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Solution Overview
Problem
Existing sensor devices struggle to protect personal information included in sensor data while maintaining data quality and attribute information.
Innovation Solution
A sensor device with a stacked multilayer structure, where a sensor unit and a processing unit are integrated in a single semiconductor device. The processing unit anonymizes personal information by replacing it with another person's information, using a generative adversarial network to maintain data quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensor data is collected and output with original personal information, then data quality and attribute information are maintained, but personal information protection is compromised
Solution Approach 1:
The patent extracts and removes personal information from sensor data through a dedicated processing unit. The processing unit identifies personal information regions in captured images and separates them from the rest of the data, outputting only anonymized portions that maintain quality while protecting privacy.
Solution Approach 2:
The patent introduces a processing unit as an intermediary between the sensor unit and external systems. This processing unit acts as a mediator that anonymizes personal information before data leaves the sensor device, ensuring both protection and quality retention through its image processing and anonymization functions.
2Reliability
If personal information is anonymized by replacing with another person's information, then personal information protection is improved, but data processing complexity increases
Solution Approach 1:
The patent merges the sensor unit and processing unit into a single integrated sensor device. The processing unit is formed in the same semiconductor device as the sensor unit, combining data acquisition and anonymization processing in one device to reduce overall system complexity despite the added processing functionality.
Solution Approach 2:
The sensor device performs self-service by automatically anonymizing personal information within its own processing unit before output. The device handles its own privacy protection needs without requiring external processing systems, reducing the complexity burden on external systems.
3Adaptability or versatility
If a stacked multilayer structure is used to integrate sensor unit and processing unit, then device integration is improved, but manufacturing complexity increases
Solution Approach 1:
The patent transitions from planar integration to three-dimensional stacked integration. The sensor unit and processing unit are formed in different layers stacked vertically, utilizing the depth dimension to accommodate multiple functional units. This layered approach enables high integration while maintaining manufacturability through standard semiconductor stacking processes.
Data Source
AI summary
Provided is a sensor device that protects personal information included in sensor data. The sensor device is configured by mounting a sensor unit and a processing unit that anonymizes personal information included in sensor information acquired by the sensor unit in a single semiconductor device. The processing unit detects the personal information from the sensor information, identifies attribute information of the personal information, generates another person information having same attribute information, and replaces the personal information in the sensor information with the another person information. The processing unit uses a generative adversarial network to generate another person information that cannot be distinguished between true and false.