Layered masking of content
US11250162B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2019 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Mar 25, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems and computer program products for layered masking of data are described. A system receives content including personally identifiable information (PII). The system redacts the content by masking the PII. The system identifies the PII in multi-layer processing, where in each layer, the system determines a respective confidence score indicating a probability that a token is PII. If the confidence score is sufficiently high, the system masks the token. Otherwise, the system provides the token to a next layer for processing. The layers can include regular expression based processing, lookup table based processing, and machine learning based processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.