JPS54134952A - Low pass filter for telephone band - Google Patents

Low pass filter for telephone band

Info

Publication number
JPS54134952A
JPS54134952A JP3680979A JP3680979A JPS54134952A JP S54134952 A JPS54134952 A JP S54134952A JP 3680979 A JP3680979 A JP 3680979A JP 3680979 A JP3680979 A JP 3680979A JP S54134952 A JPS54134952 A JP S54134952A
Authority
JP
Japan
Prior art keywords
pass filter
low pass
telephone band
telephone
band
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP3680979A
Other languages
English (en)
Japanese (ja)
Inventor
Baaru Jieraaru
Boodan Jiyatsuku
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Inc
Original Assignee
Nokia Inc
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 Nokia Inc filed Critical Nokia Inc
Publication of JPS54134952A publication Critical patent/JPS54134952A/ja
Pending legal-status Critical Current

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters

Landscapes

  • Networks Using Active Elements (AREA)
JP3680979A 1978-04-07 1979-03-28 Low pass filter for telephone band Pending JPS54134952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810479A FR2422291A1 (fr) 1978-04-07 1978-04-07 Filtre passe-bas pour bande telephonique

Publications (1)

Publication Number Publication Date
JPS54134952A true JPS54134952A (en) 1979-10-19

Family

ID=9206879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3680979A Pending JPS54134952A (en) 1978-04-07 1979-03-28 Low pass filter for telephone band

Country Status (15)

Country Link
JP (1) JPS54134952A (pl)
AU (1) AU4584779A (pl)
BE (1) BE874754A (pl)
DE (1) DE2913135A1 (pl)
EG (1) EG14776A (pl)
FI (1) FI72018C (pl)
FR (1) FR2422291A1 (pl)
GB (1) GB2019146A (pl)
IT (1) IT1118544B (pl)
LU (1) LU81123A1 (pl)
MX (1) MX144741A (pl)
NL (1) NL7902568A (pl)
PL (1) PL214706A1 (pl)
SE (1) SE435121B (pl)
ZA (1) ZA791627B (pl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2307626B (en) * 1995-11-24 2000-06-07 Nokia Mobile Phones Ltd A signal receiver
DE10032530C2 (de) * 2000-07-05 2002-10-24 Infineon Technologies Ag Verstärkerschaltung mit Offsetkompensation
US6552604B2 (en) * 2001-02-16 2003-04-22 The Boeing Company Digitally tuned analog notch filter circuit
RU2249910C2 (ru) * 2003-06-16 2005-04-10 Государственное образовательное учреждение высшего профессионального образования Военный институт радиоэлектроники Активный фнч третьего порядка с нулем передачи
RU2677362C1 (ru) * 2018-03-14 2019-01-16 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Активный rc-фильтр
RU2722752C1 (ru) * 2019-12-11 2020-06-03 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Полосовой фильтр с независимой подстройкой частоты полюса, затухания полюса и коэффициента передачи

Also Published As

Publication number Publication date
GB2019146A (en) 1979-10-24
BE874754A (fr) 1979-09-12
EG14776A (en) 1985-03-31
DE2913135A1 (de) 1979-10-18
FR2422291B1 (pl) 1982-03-19
NL7902568A (nl) 1979-10-09
MX144741A (es) 1981-11-18
IT1118544B (it) 1986-03-03
LU81123A1 (fr) 1979-11-07
SE435121B (sv) 1984-09-03
ZA791627B (en) 1980-04-30
SE7903088L (sv) 1979-10-08
FI72018B (fi) 1986-11-28
AU4584779A (en) 1979-10-11
FI791076A7 (fi) 1979-10-08
FI72018C (fi) 1987-03-09
FR2422291A1 (fr) 1979-11-02
PL214706A1 (pl) 1979-12-17
IT7967695A0 (it) 1979-04-03

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