Method for digital data transmission in the zero symbol of COFDM modulation method
US5617411A · kind A · utility
14Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1994 |
| Grant date | Apr 1, 1997 |
| Priority date | — |
| Expiry date | Aug 18, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/20
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A frame oriented, digital data transmission method wherein data are transmitted in the zero symbol of the frame of the modulation method provided in the COFDM (Coded Orthogonal Frequency Division Multiplex) which is provided in digital radio. This allows for further digital data to be independently transmitted outside of the actual digital multiplex signal. The method can also be used, among other things, for transmitter identification in common frequency networks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.