Digitally adaptive modulated transmitter
US7035600B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2003 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Dec 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0475
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit for use in a broadcast transmitter for adaptively compensating for carrier signal distortions caused by amplitude modulating an RF carrier signal. The circuit includes a modulator/amplifier network that receives an RF carrier signal and modulates it by a received amplitude varying signal to obtain therefrom a modulated carrier signal which may exhibit distortions caused by the amplitude modulating of the RF carrier signal. A digitally adaptive corrector precorrects the amplitude varying signal prior to application thereof to the network to compensate for any modulated carrier signal distortions. This includes a digital processor that provides signal correction as a function of digital samples representing amplitude variations of the modulated RF carrier signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.