FR51641E - Adjustable band filter - Google Patents

Adjustable band filter

Info

Publication number
FR51641E
FR51641E FR51641DA FR51641E FR 51641 E FR51641 E FR 51641E FR 51641D A FR51641D A FR 51641DA FR 51641 E FR51641 E FR 51641E
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
French (fr)
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 FR51641E publication Critical patent/FR51641E/en
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)
FR51641D 1936-11-20 1941-06-17 Adjustable band filter Expired FR51641E (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR51641E true FR51641E (en) 1943-03-18

Family

ID=6748531

Family Applications (4)

Application Number Title Priority Date Filing Date
FR829429D Expired FR829429A (en) 1936-11-20 1937-11-17 Adjustable band filter
FR51477D Expired FR51477E (en) 1936-11-20 1941-04-05 Adjustable band filter
FR51641D Expired FR51641E (en) 1936-11-20 1941-06-17 Adjustable band filter
FR51908D Expired FR51908E (en) 1936-11-20 1942-01-07 Adjustable band filter

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR829429D Expired FR829429A (en) 1936-11-20 1937-11-17 Adjustable band filter
FR51477D Expired FR51477E (en) 1936-11-20 1941-04-05 Adjustable band filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR51908D Expired FR51908E (en) 1936-11-20 1942-01-07 Adjustable band filter

Country Status (1)

Country Link
FR (4) FR829429A (en)

Families Citing this family (2)

* 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
US2898398A (en) * 1953-08-28 1959-08-04 Rca Corp Frequency selective circuits

Also Published As

Publication number Publication date
FR51477E (en) 1942-08-12
FR51908E (en) 1943-05-25
FR829429A (en) 1938-06-27

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