Digital transmission system for transmitting additional data and method thereof
US8891674B2 · kind B2 · utility
4Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2008 |
| Grant date | Nov 18, 2014 |
| Priority date | — |
| Expiry date | May 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital transmission system is provided. The system includes a transmission signal generation unit which generates transmission signals by loading data to be transmitted on carrier waves; and an additional data processing unit which loads a low power signal expressing additional data on the carrier waves on which the data is loaded by the transmission signal generation unit. The system may be embodied as an orthogonal frequency division multiplexing (OFDM) system such as a Digital Video Broadcasting-Terrestrial (DVB-T) system, or a single carrier system such as a Vestigial Sideband (VSB) system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.