BE874754A - LOW PASS FILTER FOR TELEPHONE BAND - Google Patents

LOW PASS FILTER FOR TELEPHONE BAND

Info

Publication number
BE874754A
BE874754A BE1/9306A BE1009306A BE874754A BE 874754 A BE874754 A BE 874754A BE 1/9306 A BE1/9306 A BE 1/9306A BE 1009306 A BE1009306 A BE 1009306A BE 874754 A BE874754 A BE 874754A
Authority
BE
Belgium
Prior art keywords
pass filter
low pass
telephone band
telephone
band
Prior art date
Application number
BE1/9306A
Other languages
French (fr)
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 BE874754A publication Critical patent/BE874754A/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
BE1/9306A 1978-04-07 1979-03-12 LOW PASS FILTER FOR TELEPHONE BAND BE874754A (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
BE874754A true BE874754A (en) 1979-09-12

Family

ID=9206879

Family Applications (1)

Application Number Title Priority Date Filing Date
BE1/9306A BE874754A (en) 1978-04-07 1979-03-12 LOW PASS 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 (5)

* 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
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
IT7967695A0 (en) 1979-04-03
FR2422291A1 (en) 1979-11-02
PL214706A1 (en) 1979-12-17
SE435121B (en) 1984-09-03
LU81123A1 (en) 1979-11-07
IT1118544B (en) 1986-03-03
FR2422291B1 (en) 1982-03-19
JPS54134952A (en) 1979-10-19
EG14776A (en) 1985-03-31
GB2019146A (en) 1979-10-24
FI72018B (en) 1986-11-28
DE2913135A1 (en) 1979-10-18
ZA791627B (en) 1980-04-30
FI791076A (en) 1979-10-08
AU4584779A (en) 1979-10-11
NL7902568A (en) 1979-10-09
FI72018C (en) 1987-03-09
MX144741A (en) 1981-11-18
SE7903088L (en) 1979-10-08

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: CIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCAT

Effective date: 19960331