Bandpass filter with ability to tune a pass frequency,...

Electrical computers: arithmetic processing and calculating – Electrical analog calculating computer – Particular function performed

Reexamination Certificate

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Reexamination Certificate

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06954774

ABSTRACT:
A bandpass filter which has a tunable passband frequency and independently controllable Q and passband gain, where the filter employs a separate passband gain control which is summed with a gain loop controlling the Q of the filter.

REFERENCES:
patent: 4965853 (1990-10-01), Barnard
patent: 5375146 (1994-12-01), Chalmers
patent: 5440264 (1995-08-01), Sevenhans et al.
patent: 5960091 (1999-09-01), White et al.

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