IT1125644B - Filtro meccanico - Google Patents

Filtro meccanico

Info

Publication number
IT1125644B
IT1125644B IT27177/79A IT2717779A IT1125644B IT 1125644 B IT1125644 B IT 1125644B IT 27177/79 A IT27177/79 A IT 27177/79A IT 2717779 A IT2717779 A IT 2717779A IT 1125644 B IT1125644 B IT 1125644B
Authority
IT
Italy
Prior art keywords
mechanical filter
filter
mechanical
Prior art date
Application number
IT27177/79A
Other languages
English (en)
Other versions
IT7927177A0 (it
Inventor
Gounji Kasay Takashi
Shirai Kenji
Original Assignee
Fujitsu Ltd
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
Priority claimed from JP13964878A external-priority patent/JPS5566119A/ja
Priority claimed from JP14986878A external-priority patent/JPS5575331A/ja
Priority claimed from JP14986678A external-priority patent/JPS5575330A/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of IT7927177A0 publication Critical patent/IT7927177A0/it
Application granted granted Critical
Publication of IT1125644B publication Critical patent/IT1125644B/it

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
    • H03H9/48—Coupling means therefor
    • H03H9/50—Mechanical coupling means

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Micromachines (AREA)
IT27177/79A 1978-11-13 1979-11-09 Filtro meccanico IT1125644B (it)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP13964878A JPS5566119A (en) 1978-11-13 1978-11-13 Mechanical filter
JP14986878A JPS5575331A (en) 1978-12-04 1978-12-04 Polarized mechanical filter
JP14986678A JPS5575330A (en) 1978-12-04 1978-12-04 Mechanical filter

Publications (2)

Publication Number Publication Date
IT7927177A0 IT7927177A0 (it) 1979-11-09
IT1125644B true IT1125644B (it) 1986-05-14

Family

ID=27317908

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27177/79A IT1125644B (it) 1978-11-13 1979-11-09 Filtro meccanico

Country Status (4)

Country Link
US (1) US4314216A (it)
DE (1) DE2945787C2 (it)
FR (1) FR2441958B1 (it)
IT (1) IT1125644B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5006824A (en) * 1986-04-07 1991-04-09 Rockwell International Corporation Third mode torsional F-M resonator

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1381694A (fr) * 1963-01-18 1964-12-14 Telefunken Patent Filtre de bande mécanique
DE1214811B (de) * 1963-01-18 1966-04-21 Telefunken Patent Mechanisches Resonanzfilter
DE1286238B (de) * 1965-08-09 1969-01-02 Siemens Ag Elektromechanisches Bandfilter
US3440574A (en) * 1966-05-05 1969-04-22 Collins Radio Co Mechanical filter having ceneral stopband characteristics
US3440572A (en) * 1966-05-27 1969-04-22 Collins Radio Co Mechanical filter section with envelope delay compensation characteristic
US3516029A (en) * 1967-02-06 1970-06-02 Collins Radio Co Mechanical filters employing multimode resonators
US3488608A (en) * 1967-02-08 1970-01-06 Collins Radio Co General stopband mechanical disc filter section employing multimode discs
DE1541975C3 (de) * 1967-05-12 1975-03-06 Siemens Ag, 1000 Berlin U. 8000 Muenchen Elektromechanisches Bandfilter
US3633133A (en) * 1969-10-06 1972-01-04 Collins Radio Co Narrow bandwidth mechanical filter using large area coupling wires
JPS50124551A (it) * 1974-02-28 1975-09-30
DE2607879C3 (de) * 1976-02-26 1981-06-19 Siemens AG, 1000 Berlin und 8000 München Elektromechanisches Filter, bei welchem mehrere, parallelachsig angeordnete, stabförmig ausgebildete mechanische Biegeresonatoren vorgesehen sind
JPS594018A (ja) * 1982-06-30 1984-01-10 Fujitsu Ltd モニタパタ−ン

Also Published As

Publication number Publication date
FR2441958B1 (fr) 1986-09-05
FR2441958A1 (fr) 1980-06-13
DE2945787A1 (de) 1980-05-14
DE2945787C2 (de) 1983-12-01
IT7927177A0 (it) 1979-11-09
US4314216A (en) 1982-02-02

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