PL214706A1 - LOW-CUT FILTER FOR TELEPHONE BAND - Google Patents

LOW-CUT FILTER FOR TELEPHONE BAND

Info

Publication number
PL214706A1
PL214706A1 PL21470679A PL21470679A PL214706A1 PL 214706 A1 PL214706 A1 PL 214706A1 PL 21470679 A PL21470679 A PL 21470679A PL 21470679 A PL21470679 A PL 21470679A PL 214706 A1 PL214706 A1 PL 214706A1
Authority
PL
Poland
Prior art keywords
low
cut filter
telephone band
telephone
band
Prior art date
Application number
PL21470679A
Other languages
Polish (pl)
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of PL214706A1 publication Critical patent/PL214706A1/en

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
PL21470679A 1978-04-07 1979-04-05 LOW-CUT FILTER FOR TELEPHONE BAND PL214706A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7810479A FR2422291A1 (en) 1978-04-07 1978-04-07 LOW PASS FILTER FOR TELEPHONE BAND

Publications (1)

Publication Number Publication Date
PL214706A1 true PL214706A1 (en) 1979-12-17

Family

ID=9206879

Family Applications (1)

Application Number Title Priority Date Filing Date
PL21470679A PL214706A1 (en) 1978-04-07 1979-04-05 LOW-CUT FILTER FOR TELEPHONE BAND

Country Status (15)

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

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 (en) * 2000-07-05 2002-10-24 Infineon Technologies Ag Amplifier circuit with offset compensation
US6552604B2 (en) * 2001-02-16 2003-04-22 The Boeing Company Digitally tuned analog notch filter circuit
RU2249910C2 (en) * 2003-06-16 2005-04-10 Государственное образовательное учреждение высшего профессионального образования Военный институт радиоэлектроники Active low frequency filter of the third order with zero transmission
RU2677362C1 (en) * 2018-03-14 2019-01-16 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Active rc filter
RU2722752C1 (en) * 2019-12-11 2020-06-03 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Band-pass filter with independent adjustment of pole frequency, pole attenuation and transmission coefficient

Also Published As

Publication number Publication date
GB2019146A (en) 1979-10-24
BE874754A (en) 1979-09-12
EG14776A (en) 1985-03-31
DE2913135A1 (en) 1979-10-18
JPS54134952A (en) 1979-10-19
FR2422291B1 (en) 1982-03-19
NL7902568A (en) 1979-10-09
MX144741A (en) 1981-11-18
IT1118544B (en) 1986-03-03
LU81123A1 (en) 1979-11-07
SE435121B (en) 1984-09-03
ZA791627B (en) 1980-04-30
SE7903088L (en) 1979-10-08
FI72018B (en) 1986-11-28
AU4584779A (en) 1979-10-11
FI791076A7 (en) 1979-10-08
FI72018C (en) 1987-03-09
FR2422291A1 (en) 1979-11-02
IT7967695A0 (en) 1979-04-03

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