DE1252330B - - Google Patents

Info

Publication number
DE1252330B
DE1252330B DENDAT1252330D DE1252330DA DE1252330B DE 1252330 B DE1252330 B DE 1252330B DE NDAT1252330 D DENDAT1252330 D DE NDAT1252330D DE 1252330D A DE1252330D A DE 1252330DA DE 1252330 B DE1252330 B DE 1252330B
Authority
DE
Germany
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.)
Pending
Application number
DENDAT1252330D
Other languages
German (de)
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.)
Publication of DE1252330B publication Critical patent/DE1252330B/de
Pending 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 devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/581—Multiple crystal filters comprising ceramic piezoelectric layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/40—Piezoelectric or electrostrictive devices with electrical input and electrical output, e.g. functioning as transformers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Power Engineering (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
DENDAT1252330D 1958-09-17 Pending DE1252330B (e)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US761522A US3051919A (en) 1958-09-17 1958-09-17 Filter-transformers

Publications (1)

Publication Number Publication Date
DE1252330B true DE1252330B (e)

Family

ID=25062466

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT1252330D Pending DE1252330B (e) 1958-09-17

Country Status (4)

Country Link
US (1) US3051919A (e)
DE (1) DE1252330B (e)
FR (1) FR1235889A (e)
GB (1) GB878375A (e)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176251A (en) * 1960-01-26 1965-03-30 Erie Resistor Corp Electromechanical tuned filter
FR1307476A (fr) * 1960-12-12 1962-10-26 U S Sonics Corp Amplificateur sélecteur de fréquences
US3189852A (en) * 1962-04-14 1965-06-15 Toko Radio Coil Kenkyusho Kk Electro-mechanical filters
US3189851A (en) * 1962-06-04 1965-06-15 Sonus Corp Piezoelectric filter
DE1278623B (de) * 1962-07-16 1968-09-26 Hermsdorf Keramik Veb Impedanztransformierendes keramisches Filter fuer Siebschaltungen
US3351875A (en) * 1962-12-20 1967-11-07 Collins Radio Co Ring coupled mechanical filter
US3437848A (en) * 1964-09-24 1969-04-08 Telefunken Patent Piezoelectric plate filter
GB9817454D0 (en) * 1998-08-12 1998-10-07 Smiths Industries Plc Fluid-gauging systems
WO2012156818A2 (en) * 2011-05-17 2012-11-22 Katardjiev Llia A passive radio triggered switch with id functionality

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1923354A (en) * 1930-02-14 1933-08-22 Radio Patents Corp Selective circuits
US2276013A (en) * 1939-06-08 1942-03-10 Western Electric Co Apparatus for electrical transformation
US2343633A (en) * 1941-10-07 1944-03-07 Gen Electric Frequency measuring device
NL83190C (e) * 1942-06-10
US2729708A (en) * 1951-02-02 1956-01-03 Rca Corp Band-pass amplifier systems
US2877432A (en) * 1957-01-08 1959-03-10 Clevite Corp Electromechanical filter elements

Also Published As

Publication number Publication date
FR1235889A (fr) 1960-07-08
US3051919A (en) 1962-08-28
GB878375A (en) 1961-09-27

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