Reverse Nyquist slope filter

Details Reverse Nyquist slope filter Reverse Nyquist slope filter

1988-05-17

1990-03-20

Safourek, Benedict V.

Telecommunications

Receiver or analog modulated signal frequency converter

Modulation distortion or cross talk correction or elimination

455209, 358197, H04B 110

Patent

active

049107984

ABSTRACT:
A circuit for providing a mirrored version of a preselected transfer function includes a circuit having the preselected transfer function coupled to receive a signal modulated by a signal that is to experience the mirrored transfer function. The modulated signal at the output terminal of this circuit is mixed with a signal at a frequency that is greater than the carrier frequency of the modulated signal. The signal resulting from this mixing operation then is low pass filtered to provide the desired mirrored response.

REFERENCES:
patent: 4211979 (1980-07-01), Muraoka et al.
patent: 4370741 (1983-01-01), Haass
patent: 4476536 (1984-10-01), Jones, Jr.
patent: 4580289 (1986-04-01), Enderby
patent: 4602287 (1986-07-01), Fockens

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