Federated speaker verification method based on differential privacy
US11170786B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2021 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | May 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L17/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure proposes a federated speaker verification method based on differential privacy, including: 1. performing, by a server, UBM pre-training to obtain an initial UBM; 2. receiving, by the client, the pre-trained initial UBM, and performing initial UBM learning based on local private speech data; 3. performing, by the client, differential privacy protection based on learned statistics; 4. aggregating, by the server, statistics uploaded by multiple clients, and updating the initial UBM; and 5. receiving, by the client, the updated UBM, performing adjustment based on the local private speech data to obtain a GMM for a user of the client, and determining, based on the updated UBM and the GMM, whether a to-be-verified speech is generated by the user of the client.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.