Receiver for multicarrier signals protected from unwanted...

Details Receiver for multicarrier signals protected from unwanted... Receiver for multicarrier signals protected from unwanted...

H - Electricity

04

B

325/104

H04B 1/16 (2006.01) H03G 3/20 (2006.01) H04L 27/26 (2006.01)

Patent

CA 1215127

-18- ABSTRACT OF THE DISCLOSURE The invention relates to a multicarrier signal receiver protected against unwanted signals, Between the high frequency circuit and the inter- mediate frequency circuit, it has a frequency- selective attenuation and preselection circuit, whilst a circuit for detecting the disturbed channels is coupled to the demodulation circuit and supplies control signals characteristic of the appearance and disappearance of the unwanted signals. The receiver also comprises a control circuit eliminating the disturbed channel for processing demodulated signals and for the automatic control of the intermediate frequency amplifier circuit, and controlling the attenuation of the disturbed channel in the selective atten- uation circuit.

427223

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