DK151669C - Firpol til realisering af vilkaarlige overfoeringsfunktioner af hoejere orden - Google Patents

Firpol til realisering af vilkaarlige overfoeringsfunktioner af hoejere orden

Info

Publication number
DK151669C
DK151669C DK473678A DK473678A DK151669C DK 151669 C DK151669 C DK 151669C DK 473678 A DK473678 A DK 473678A DK 473678 A DK473678 A DK 473678A DK 151669 C DK151669 C DK 151669C
Authority
DK
Denmark
Prior art keywords
firpol
terms
conditions
higher order
order
Prior art date
Application number
DK473678A
Other languages
English (en)
Other versions
DK151669B (da
DK473678A (da
Inventor
Karl Heinz Feistel
Original Assignee
Karl Heinz Feistel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karl Heinz Feistel filed Critical Karl Heinz Feistel
Publication of DK473678A publication Critical patent/DK473678A/da
Publication of DK151669B publication Critical patent/DK151669B/da
Application granted granted Critical
Publication of DK151669C publication Critical patent/DK151669C/da

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
    • H03H11/1252—Two integrator-loop-filters
DK473678A 1977-10-26 1978-10-25 Firpol til realisering af vilkaarlige overfoeringsfunktioner af hoejere orden DK151669C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2747857A DE2747857C3 (de) 1977-10-26 1977-10-26 Vierpol, dessen Übertragungsfunktion einstellbar ist
DE2747857 1977-10-26

Publications (3)

Publication Number Publication Date
DK473678A DK473678A (da) 1979-04-27
DK151669B DK151669B (da) 1987-12-21
DK151669C true DK151669C (da) 1988-05-30

Family

ID=6022221

Family Applications (1)

Application Number Title Priority Date Filing Date
DK473678A DK151669C (da) 1977-10-26 1978-10-25 Firpol til realisering af vilkaarlige overfoeringsfunktioner af hoejere orden

Country Status (5)

Country Link
US (1) US4223272A (da)
DE (1) DE2747857C3 (da)
DK (1) DK151669C (da)
FR (1) FR2407611A1 (da)
GB (1) GB2016233B (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132046A (en) * 1982-10-26 1984-06-27 Voice Microsystems Ltd Improvements in or relating to state variable filters
GB2172762A (en) * 1985-03-21 1986-09-24 Topexpress Ltd Improvements in electrical transfer filters
US4679001A (en) * 1985-10-11 1987-07-07 International Business Machines Corporation Adaptive stop-notch filter
US4805126A (en) * 1985-11-26 1989-02-14 Rodems James D Electronic compensation network
US5652544A (en) * 1994-11-09 1997-07-29 Crest Audio Inc. Apparatus and method for programming an amplifier
US5652542A (en) * 1994-11-09 1997-07-29 Crest Audio, Inc. Digital signal processor for amplifier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1906280A1 (de) * 1969-02-08 1970-09-03 Wolff Dr Ing Dieter Aktive Differenzintegratorfilter
DE2059728C3 (de) * 1970-12-04 1973-09-20 Wandel U. Goltermann, 7410 Reutlingen Spulenloser Dampfungs und Lauf zeitentzerrer
US3769606A (en) * 1971-05-26 1973-10-30 Singer Co Digitally controlled frequency filter
US3883830A (en) * 1974-05-13 1975-05-13 Hekimian Laboratories Inc Line conditioner with independent gain and delay control
US4085380A (en) * 1976-11-26 1978-04-18 Rockwell International Corporation Biquad RC active filter

Also Published As

Publication number Publication date
FR2407611B1 (da) 1983-11-18
GB2016233B (en) 1982-09-15
DK151669B (da) 1987-12-21
DE2747857A1 (de) 1979-05-03
DE2747857B2 (de) 1979-11-15
FR2407611A1 (fr) 1979-05-25
DK473678A (da) 1979-04-27
DE2747857C3 (de) 1980-07-24
GB2016233A (en) 1979-09-19
US4223272A (en) 1980-09-16

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Legal Events

Date Code Title Description
PBP Patent lapsed