Location information adjustment method and system, and device
US11994607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2023 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Mar 29, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/72454
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A first electronic device determines that a first trigger condition is satisfied, sends a first instruction to enable a first sound wave transmitter to send a first sound wave signal, and sends a second instruction to enable a second sound wave transmitter to send a second sound wave signal. A second electronic device sends a third instruction to enable a first sound wave receiver to receive the first sound wave signal and the second sound wave signal, calculates a first receiving start moment and a second receiving start moment, obtains first location information, determines second location information based on the first receiving start moment, the second receiving start moment, and the first location information, and sends the second location information to the first electronic device. The first electronic device updates third location information by using the second location information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.