FR1491491A - Improvements to low frequency filters - Google Patents

Improvements to low frequency filters

Info

Publication number
FR1491491A
FR1491491A FR67554A FR67554A FR1491491A FR 1491491 A FR1491491 A FR 1491491A FR 67554 A FR67554 A FR 67554A FR 67554 A FR67554 A FR 67554A FR 1491491 A FR1491491 A FR 1491491A
Authority
FR
France
Prior art keywords
low frequency
frequency filters
filters
low
frequency
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.)
Expired
Application number
FR67554A
Other languages
French (fr)
Inventor
Robert Basard
Michel Rene Joseph Dalbera
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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications SA
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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Priority to FR67554A priority Critical patent/FR1491491A/en
Priority to CH899167A priority patent/CH458561A/en
Priority to GB2911167A priority patent/GB1119509A/en
Priority to ES342519A priority patent/ES342519A1/en
Application granted granted Critical
Publication of FR1491491A publication Critical patent/FR1491491A/en
Expired 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
    • H03H11/1295—Parallel-T filters
    • 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
    • H03H11/1213—Frequency selective two-port networks using amplifiers with feedback using transistor amplifiers
FR67554A 1966-06-30 1966-06-30 Improvements to low frequency filters Expired FR1491491A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR67554A FR1491491A (en) 1966-06-30 1966-06-30 Improvements to low frequency filters
CH899167A CH458561A (en) 1966-06-30 1967-06-23 Low-frequency filter device
GB2911167A GB1119509A (en) 1966-06-30 1967-06-23 Low frequency filters
ES342519A ES342519A1 (en) 1966-06-30 1967-06-30 Low frequency filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR67554A FR1491491A (en) 1966-06-30 1966-06-30 Improvements to low frequency filters

Publications (1)

Publication Number Publication Date
FR1491491A true FR1491491A (en) 1967-08-11

Family

ID=8612147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR67554A Expired FR1491491A (en) 1966-06-30 1966-06-30 Improvements to low frequency filters

Country Status (4)

Country Link
CH (1) CH458561A (en)
ES (1) ES342519A1 (en)
FR (1) FR1491491A (en)
GB (1) GB1119509A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443731A2 (en) * 1990-02-20 1991-08-28 Advanced Micro Devices, Inc. Collision filter comprising at least one notch filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6552604B2 (en) * 2001-02-16 2003-04-22 The Boeing Company Digitally tuned analog notch filter circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443731A2 (en) * 1990-02-20 1991-08-28 Advanced Micro Devices, Inc. Collision filter comprising at least one notch filter
EP0443731A3 (en) * 1990-02-20 1992-10-21 Advanced Micro Devices, Inc. Improved collision filter

Also Published As

Publication number Publication date
GB1119509A (en) 1968-07-10
CH458561A (en) 1968-06-30
ES342519A1 (en) 1968-07-16

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