FI72018C - Laogpassfilter foer telefonband. - Google Patents

Laogpassfilter foer telefonband. Download PDF

Info

Publication number: FI72018C
Authority: FI; Finland
Prior art keywords: resistor; capacitor; filter; operational amplifier; low
Prior art date: 1978-04-07

Application number

FI791076A

Other languages

English (en)

Finnish (fi)

Swedish (sv)

Other versions

FI791076A7 (fi

FI72018B (fi

Inventor

Gerard Bars

Jacques Baudin

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.)

1978-04-07

Filing date

1979-04-02

Publication date

1987-03-09

1979-04-02 Application filed by Cit Alcatel filed Critical Cit Alcatel

1979-10-08 Publication of FI791076A7 publication Critical patent/FI791076A7/fi

1986-11-28 Application granted granted Critical

1986-11-28 Publication of FI72018B publication Critical patent/FI72018B/fi

1987-03-09 Publication of FI72018C publication Critical patent/FI72018C/fi

Links

239000003990 capacitor Substances 0.000 claims description 24
238000013459 approach Methods 0.000 claims 1
238000005070 sampling Methods 0.000 description 6
238000010586 diagram Methods 0.000 description 1
230000001629 suppression Effects 0.000 description 1

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)

FI791076A 1978-04-07 1979-04-02 Laogpassfilter foer telefonband. FI72018C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR7810479A FR2422291A1 (fr)	1978-04-07	1978-04-07	Filtre passe-bas pour bande telephonique
FR7810479		1978-04-07

Publications (3)

Publication Number	Publication Date
FI791076A7 FI791076A7 (fi)	1979-10-08
FI72018B FI72018B (fi)	1986-11-28
FI72018C true FI72018C (fi)	1987-03-09

Family

ID=9206879

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI791076A FI72018C (fi)	1978-04-07	1979-04-02	Laogpassfilter foer telefonband.

Country Status (15)

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

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

1978
- 1978-04-07 FR FR7810479A patent/FR2422291A1/fr active Granted
1979
- 1979-03-12 BE BE1/9306A patent/BE874754A/fr not_active IP Right Cessation
- 1979-03-19 GB GB7909533A patent/GB2019146A/en not_active Withdrawn
- 1979-03-28 JP JP3680979A patent/JPS54134952A/ja active Pending
- 1979-03-28 EG EG79191A patent/EG14776A/xx active
- 1979-04-02 DE DE19792913135 patent/DE2913135A1/de not_active Withdrawn
- 1979-04-02 FI FI791076A patent/FI72018C/fi not_active IP Right Cessation
- 1979-04-02 NL NL7902568A patent/NL7902568A/xx not_active Application Discontinuation
- 1979-04-03 IT IT67695/79A patent/IT1118544B/it active
- 1979-04-05 PL PL21470679A patent/PL214706A1/xx unknown
- 1979-04-05 ZA ZA791627A patent/ZA791627B/xx unknown
- 1979-04-05 MX MX177213A patent/MX144741A/es unknown
- 1979-04-05 AU AU45847/79A patent/AU4584779A/en not_active Abandoned
- 1979-04-05 LU LU81123A patent/LU81123A1/fr unknown
- 1979-04-06 SE SE7903088A patent/SE435121B/sv not_active IP Right Cessation

Also Published As

Publication number	Publication date
GB2019146A (en)	1979-10-24
SE435121B (sv)	1984-09-03
ZA791627B (en)	1980-04-30
DE2913135A1 (de)	1979-10-18
SE7903088L (sv)	1979-10-08
LU81123A1 (fr)	1979-11-07
AU4584779A (en)	1979-10-11
FR2422291B1 (fr)	1982-03-19
IT7967695A0 (it)	1979-04-03
FR2422291A1 (fr)	1979-11-02
IT1118544B (it)	1986-03-03
BE874754A (fr)	1979-09-12
MX144741A (es)	1981-11-18
EG14776A (en)	1985-03-31
FI791076A7 (fi)	1979-10-08
PL214706A1 (pl)	1979-12-17
FI72018B (fi)	1986-11-28
JPS54134952A (en)	1979-10-19
NL7902568A (nl)	1979-10-09

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Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: COMPAGNIE INDUSTRIELLE DES