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US11151123B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An example operation may include one or more of obtaining a machine-readable code from a first document among a set of documents, extracting a probabilistic data structure from the machine-readable code which includes probabilistic hashes accumulated from the set of documents, determining whether a document hash of a second document is included within the probabilistic data structure, and in response to a determination that the document hash is included within the probabilistic data structure, outputting a notification indicating the second document is included in the set of documents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.