Location-based message distribution
US11158189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2020 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Apr 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/44
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to the disclosed approaches, a first processor receives location messages from second processors. Each location message specifies published geographical coordinates that indicate a geographical location, and the published geographical coordinates are a version of actual geographical coordinates truncated from a first level of precision to a second level of precision. The first processor accesses subscriptions to location topics in response to the location messages. Each location topic specifies in the second level of precision, subscribed-to geographical coordinates of a location. The first processor determines whether or not the published geographical coordinates match any of the subscribed-to geographical coordinates. Non-matching location messages are discarded, and matching location messages are transmitted to one or more third processors identified by the subscriptions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.