Patent ID: 11914676
Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. A system for monitoring and correcting obfuscation of vehicle-related data, comprising:
an input circuit for receiving the vehicle-related data via a wireless connection;
a backend computer, operatively coupled to the input circuit, the backend computer comprising an anonymization filter for anonymizing vehicle-related data, wherein the anonymization filter comprises
a filter section for removing personal data;
a filter section for calculating traffic density;
a filter section for temporal obfuscation of the data;
a filter section for spatial obfuscation of the data; and
a filter section for outputting anonymous data comprising a specification of a degree of obfuscation;

and wherein the backend computer comprises an observer circuit, operatively coupled to the anonymization filter, the observer circuit comprising
an observer section for randomly selecting an anonymous data set;
an observer section for collecting further anonymous data sets for a same position, and determining an actual cluster size; and
an observer section for comparing the actual cluster size with an estimated cluster size to determine a correction parameter for the anonymization filter,

and wherein the observer circuit is configured to check functionality of the anonymization filter.