Switched amplifying device
US6127886A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7239
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switched amplifying device for use in a wireless telecommunications receiver as an amplifier of an RF signal has an amplifying device electrically connected in parallel with a switch. The switched amplifying device has a bypass mode in which an electrical path of the RF signal bypasses the amplifying device and is connected to an RF output port. The switched amplifying device also has a amplification mode in which, the electrical path of the RF signal flows through the amplifying device prior to presentation of the RF signal at the RF output. In the bypass mode, the amplification device is in an off state. Similarly, in the amplification mode, the bypass device is in an off state. Use of the switched amplifying device according to the teachings of the present invention in a receiver permits accommodation of a larger dynamic range in amplitude of received signal with less signal degradation and noise figure than in prior art amplification devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.