Robust carrier identifying method and apparatus for bandwidth-on-demand (BOD) system
US6711710B2 · kind B2 · utility
6Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Jun 5, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/1858
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An approach for identifying a particular carrier among a plurality of carriers in a satellite communication system is disclosed. A transmitter multiplies an encoded signal by a prescribed periodic sequence to form a watermarked signal and transmits the watermarked signal associated with a particular carrier over a communication channel. A receiver tunes to one of the carriers and extracts a data sequence from the one carrier. The receiver multiplies the data sequence with the prescribed periodic sequence to form another watermarked signal and determines whether the watermarked signals match.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.