Dynamic machine-readable codes
US11188938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Jul 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0816
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for determining a condition under which a sign has been viewed includes receiving a uniform resource locator from a user endpoint device, where the uniform resource locator is embedded in a machine-readable code displayed on the sign, and extracting information from the uniform resource locator, where the information describes the condition under which the sign was viewed by a user of the user endpoint device. A method for transmitting information describing a condition under which a sign is currently viewable includes generating the information describing the condition under which the sign is currently viewable and inserting the information in a uniform resource locator, where the uniform resource locator is embedded in a machine-readable code displayed on the sign.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.