Agile output band pass filter for agile up converter
US5129100A · kind A · utility
3Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1991 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Jul 23, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/1638
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The need for replacing the dedicated external output filter each time a different channel is selected is eliminated through the use of a switchable array of low and high pass filters which forms a filter circuit which may be varied for use with any channel. The band pass of the filter is selected in accordance with the selected channel number. The channel number is decoded to actuate RF relays which switch selected filters into the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.