Method for improving the wanted signal in a radio receiving unit
US6370370B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Jun 28, 1999 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Jun 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3078
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
It is known for a signal-strength detection unit to be used to detect the ratio of the input signal to the wanted signal obtained after it. A disadvantage in this case is that interference elements, which are also amplified, not only corrupt the output signal of the signal-strength detection unit, but can also adversely affect the quality of the wanted signal.The invention is based on the object of providing a method for improving the wanted signal in the receiving unit of a communications system.The method according to the invention for improving the wanted signal in a radio receiving unit having a channel filter, having a switch, having a control unit, having a signal-strength detection unit and having controllable amplifiers is distinguished in that the control unit drives the switch in such a manner that the switch alternately supplies a first signal upstream of the channel filter and a second signal downstream from the channel filter to the signal-strength detection unit, and that the output signal of the signal-strength detection unit is supplied to the control unit, and that the amplifiers are driven as a function of the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.