Apparatus for controlling sensitivity by using digital gating in receiver and receiver with the same
US8270538B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2009 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jul 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/06
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is a wireless communication system, more particularly, a receiver and a chipset for DSRC. A receiver includes: a low noise amplifier (LNA) amplifying a received radio (RF) signal while minimizing amplification of noise included in the received RF signal; a mixer down-converting a frequency of an output signal of the LNA to output an intermediate frequency (IF) signal; a frequency synthesizer generating and outputting a frequency signal for the frequency-down conversion of the mixer to the mixer; a bandpass filter passing a necessary band of a channel in an output signal of the mixer; a log amplifier amplifying an output signal of the bandpass filter in log scale and outputting a received signal strength indicator of an output signal of the bandpass filter; a detector comparing an output of the log amplifier with a predetermined binary threshold value, outputting a first binary signal when the output of the log amplifier is less than the predetermined binary threshold value, and outputting a second binary signal when the output of the log amplifier is equal to or greater than the predetermined binary threshold value; a switch serially connected with an output terminal of t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.