FR51477E - Filtre à bande réglable - Google Patents

Filtre à bande réglable

Info

Publication number
FR51477E
FR51477E FR51477DA FR51477E FR 51477 E FR51477 E FR 51477E FR 51477D A FR51477D A FR 51477DA FR 51477 E FR51477 E FR 51477E
Authority
FR
France
Prior art keywords
band filter
adjustable band
adjustable
filter
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.)
Expired
Application number
Other languages
English (en)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR51477E publication Critical patent/FR51477E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/545—Filters comprising resonators of piezoelectric or electrostrictive material including active elements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
FR51477D 1936-11-20 1941-04-05 Filtre à bande réglable Expired FR51477E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE829429X 1936-11-20

Publications (1)

Publication Number Publication Date
FR51477E true FR51477E (fr) 1942-08-12

Family

ID=6748531

Family Applications (4)

Application Number Title Priority Date Filing Date
FR829429D Expired FR829429A (fr) 1936-11-20 1937-11-17 Filtre à bande réglable
FR51477D Expired FR51477E (fr) 1936-11-20 1941-04-05 Filtre à bande réglable
FR51641D Expired FR51641E (fr) 1936-11-20 1941-06-17 Filtre à bande réglable
FR51908D Expired FR51908E (fr) 1936-11-20 1942-01-07 Filtre à bande réglable

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR829429D Expired FR829429A (fr) 1936-11-20 1937-11-17 Filtre à bande réglable

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR51641D Expired FR51641E (fr) 1936-11-20 1941-06-17 Filtre à bande réglable
FR51908D Expired FR51908E (fr) 1936-11-20 1942-01-07 Filtre à bande réglable

Country Status (1)

Country Link
FR (4) FR829429A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742615A (en) * 1952-12-30 1956-04-17 Rca Corp Frequency selective circuits

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2898398A (en) * 1953-08-28 1959-08-04 Rca Corp Frequency selective circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742615A (en) * 1952-12-30 1956-04-17 Rca Corp Frequency selective circuits

Also Published As

Publication number Publication date
FR51908E (fr) 1943-05-25
FR51641E (fr) 1943-03-18
FR829429A (fr) 1938-06-27

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