Method of configuring a polar-based modulator using a parameter look-up table
US7518461B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2007 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Jun 7, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03C5/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A polar-based modulator includes an amplitude signal generator operating at a set gain and a command module that selects an appropriate one parameter lookup table based on an identification of the current network communication system. The command module receives a digital representation of the desired amplitude and using the received digital amplitude and selected parameter lookup table determines control commands used by a scalar to appropriately modulate an amplitude modulated signal output from the amplitude signal generator. Use of the parameter lookup table and command module in the digital realm eliminates the complexities of comparable functionality in the analog realm. Further, operating the amplitude signal generator at a set gain and scaling the output eliminates the complexities associated with generating an appropriately amplified signal within the amplitude signal generator and improves the overall efficiency for generating such an amplitude modulated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.