Radio receiver

Details Radio receiver Radio receiver

1996-05-03

1998-02-24

Au, Amelia

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

455254, H04B 112

Patent

active

057220603

ABSTRACT:
A radio receiver has an antenna circuit, a high-frequency amplifier, a tuned circuit, a mixer for generating a first intermediate frequency signal, and an AGC circuit applied with an output signal of the radio receiver for controlling a gain of the receiver. An intermodulation predicting circuit is provided. The intermodulation predicting circuit has a high-frequency amplifier applied with an output of the radio receiver, and a mixer for generating a second intermediate frequency signal. The intermodulation predicting circuit has a dynamic range smaller than that of the radio receiver. Therefore an intermodulation prediction signal based on a received broadcasting signal is produced earlier than a response to the received broadcasting signal at the radio receiver.

REFERENCES:
patent: 5321851 (1994-06-01), Sugayama et al.
patent: 5390345 (1995-02-01), Wada et al.
patent: 5483694 (1996-01-01), Bartels et al.

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