Method and apparatus for satellite receiver with variable predetection bandwidth
US5507025A · kind A · utility
50Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1993 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Nov 2, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/1054
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A satellite receiver having first and second stages that are serially coupled so that an output of the first stage feeds into an input of the second stage is provided. Each of the first and second stages includes a tunable oscillator for providing a reference frequency, a means coupled to the input and the tunable oscillator for mixing a frequency modulated (FM) signal on that stage's input with the reference frequency to provide an intermediate frequency (IF) FM signal, and a bandpass filter for filtering the IF FM signal and providing the filtered IF FM signal to that stage's output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.