Multipath detector for an FM tuner

Details Multipath detector for an FM tuner Multipath detector for an FM tuner

1991-04-05

1992-10-27

Kuntz, Curtis

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

H04B 116

Patent

active

051597080

ABSTRACT:
A multipath detector circuit is in a form of a differential amplifier and has a first level dependent on strength of a received signal and a second level set to a lower level than the first level. The circuit produces a multipath level signal when the first level reduces below a threshold represented by a difference between the first level and the second level increases with an increase of the first level. The multipath detector circuit is arranged so that the threshold increases with an increase of the first level.

REFERENCES:
patent: 4511849 (1985-04-01), Yoshihisa
patent: 4547739 (1985-10-01), Lutz
patent: 4567441 (1986-01-01), Main
patent: 4578807 (1986-03-01), Okanoby
patent: 4926132 (1990-05-01), Main
patent: 4998289 (1991-03-01), Rabe et al.

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