Data transmission method, apparatus, and system
US11044016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Dec 17, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A data transmission method to avoid a channel resource waste where first random data and second random data are generated by a sending device; at least two pieces of reference data are determined; a modulation signal based on the first random data, the second random data, and the at least two pieces of reference data are generated; a component in a first polarization direction and a component in a second polarization direction of a first laser signal by using the modulation signal are modulated by the sending device, to obtain a second laser signal, where the first polarization direction and the second polarization direction are perpendicular to each other, and the second laser signal includes a quantum light and a reference light; and the second laser signal is sent by the sending device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.