Supressed cycle based carrier modulation using amplitude modulation
Abstract
A sinusoidal RF carrier is modulated for the transmission of digital binary data streams through the amplitude supression of carrier wavelets, which are defined between zero crossover positions representing zero energy locations. This modulation is accomplished when the carrier is slightly amplitude modulated with a modulation signal that is equal in frequency to the carrier itself and the modulation always begins or ends upon the exact zero voltage crossing point of the RF cycle phase. The modulation is applied as a slight shift of the amplitude of any single cycle, each cycle representing a single bit of data. A single cycle of RF will either represent a "1" or "0" depending upon the amplitude of the cycle, relative to other adjacent cycles in the same carrier.
Term
Term ended
Projected expiry passed 22 January 2024, 2.7 years ago.
- Priority
- Filed and published
- Projected expiry
- Today
9 members in 6 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 91605401 | United States of America | A | |
| 0131105 | United States of America | W | |
| PCTUS0131105 | – | – | – |
| US20010916054 | – | – | – |
| WO2001US31105 | – | – | – |
Members9
| Document | Office | Kind | |
|---|---|---|---|
| US2002058484A1 | United States of America | A1 | |
| CA2455737A1 | Canada | A1 | |
| WO03013089A2 | World Intellectual Property Organization (WIPO) | A2 | |
| WO03013089A3 | World Intellectual Property Organization (WIPO) | A3 | |
| IS7122AThis record | Iceland | A | |
| EP1410591A2 | European Patent Office (EPO) | A2 | |
| US6901246B2 | United States of America | B2 | |
| AU2002211428B2 | Australia | B2 | |
| CA2455737C | Canada | C |
Numbers
- Publication, DOCDB
- 7122
- Publication, EPODOC
- IS7122
- Application
- 7122
- Application, DOCDB
- 7122
- Application, EPODOC
- IS20040007122
Titles
- Icelandic
- Burðarbylgjumótun byggð á dreifðri lotu þar sem styrkmótun er notuð
Classification
- CPC, 4
- H04L27/0004
- H04L27/02
- H04L27/04
- H04L27/06
- IPC, 4
- H04L27 00
- H04L27 02
- H04L27 04
- H04L27 06