Radio frequency signal receiver with adequate automatic gain control
US7668517B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 6, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Jan 9, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/52
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention provides a radio frequency signal receiver with adequate gain control path to control the gain of a mixer and/or a channel selection filter, comprising a low noise amplifier for receiving and amplifying a radio frequency signal, a local oscillator (LO) for providing a LO signal, a mixer for down converting the radio frequency signal by the LO signal to an intermediate signal, a channel selection filter for receiving and filtering the intermediate signal to develop an output signal, and an automatic gain control unit for feedback adjusting the gain of the low noise amplifier and forward controlling the gain of the mixer and channel selection filter in accordance with the output signal of the low noise amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.