Digital carrierless amplitude and phase modulation (CAP) transmitter using vector arithmetic structure (VAS)
US7065145B2 · kind B2 · utility
1Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2001 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Aug 18, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4921
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for carrierless amplitude and phase CAP encoding of data in a manner avoiding the use of pulse shaping filters for in-phase and quadrature impulse signals. Specifically, in-phase and quadrature vector arithmetic structures (VAS) to adapt respective in-phase and quadrature impulse components to produce appropriate shaped in-phase and quadrature components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.