Satellite receiver having analog-to-digital converter demodulation
US5630227A · kind A · utility
114Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1995 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Dec 20, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18517
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A satellite receiver is provided which downconverts an incoming band of signals received at a carrier frequency to a signal spectrum centered about an intermediate frequency (IF). The IF signal spectrum is filtered to provide a group of signals therefrom. The group comprises a subset of all the signals in the incoming band of signals. The group of signals from the IF signal spectrum is sampled at a high frequency which is greater than the highest frequency present in the group but lower than the intermediate frequency, in order to provide the group of signals at baseband directly from the IF signal spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.