Data transmission method and device
US9516327B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 2013 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Aug 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a data transmission method and device. The method comprises: a first terminal collecting image(s) displayed on a display screen of a second terminal through an image collecting module; wherein the image(s) is (or are) generated by encoding binary data of a file to be transmitted by the second terminal, and displayed on the display screen of the second terminal, and wherein a plurality of color gradations of pixels of the image(s) correspond to corresponding binary data; and the first terminal decoding the collected image(s) to obtain binary data and restoring the corresponding file according to the obtained binary data, thus achieving data transmission between terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.