Patent ID: 6313874
Filing Date: 2001-11-06
Classification: H04B,H04N

Abstract:
A receiver circuit for use in a leakage detector, said leakage detector operable to measure leakage in a communication system, the communication system operable to transmit broadband communication signals comprising one or more radio frequency RF carrier signals modulated by one or more baseband communication signals, each (RF) carrier signal having a channel frequency, the receiver circuit operable to generate a baseband leakage signal, the receiver circuit comprising:a) an RF input for receiving a broadband communication signal, the broadband communication signal including a first signal associated with a first channel frequency;b) a narrow band filter operably coupled to the RF input for receiving at least a portion of the broadband communication signal and producing a filtered and unconverted first signal therefrom, the narrow band filter having a pass band that includes the first channel frequency; andc) a direct demodulator coupled to the narrow band filter, the direct demodulator operable to generate a baseband leakage signal from the filtered and unconverted first signal.