Pulse shaping for a baseband wireless transmitter
US6658053B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1999 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Sep 29, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7174
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating a baseband signal from a data pulse to approximate a filter transfer function is disclosed. The method comprises generating the data pulse, generating a plurality of delayed short pulses from the data pulse, and generating an output baseband signal from the of delayed pulses. The apparatus for generating a baseband signal from a data pulse to approximate a filter transfer function, comprises an input node coupled to the data pulse, an output node, a pull-up circuit coupled to said output node which generates positive going excursions of the baseband signal, and a pull-down circuit coupled to said output node which generates negative going excursions of the baseband signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.