BE740969A - - Google Patents

Info

Publication number
BE740969A
BE740969A BE740969DA BE740969A BE 740969 A BE740969 A BE 740969A BE 740969D A BE740969D A BE 740969DA BE 740969 A BE740969 A BE 740969A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE740969A publication Critical patent/BE740969A/xx

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
    • H03H9/56—Monolithic crystal filters
    • H03H9/566—Electric coupling means therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • H03H2003/0414—Resonance frequency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
BE740969D 1968-10-30 1969-10-29 BE740969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77184368A 1968-10-30 1968-10-30

Publications (1)

Publication Number Publication Date
BE740969A true BE740969A (en) 1970-04-01

Family

ID=25093109

Family Applications (1)

Application Number Title Priority Date Filing Date
BE740969D BE740969A (en) 1968-10-30 1969-10-29

Country Status (8)

Country Link
US (1) US3573672A (en)
BE (1) BE740969A (en)
CH (1) CH501340A (en)
DE (1) DE1953826C2 (en)
FR (1) FR2021887A1 (en)
GB (1) GB1287002A (en)
NL (1) NL155693B (en)
SE (1) SE365083B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699484A (en) * 1970-06-24 1972-10-17 Vernitron Corp Width extensional resonator and coupled mode filter
US3697788A (en) * 1970-09-30 1972-10-10 Motorola Inc Piezoelectric resonating device
US3732510A (en) * 1970-10-12 1973-05-08 Bell Telephone Labor Inc Multisection precision-tuned monolithic crystal filters
US3676805A (en) * 1970-10-12 1972-07-11 Bell Telephone Labor Inc Monolithic crystal filter with auxiliary filter shorting tabs
JPS5329265B2 (en) * 1972-09-20 1978-08-19
US4112147A (en) * 1977-05-13 1978-09-05 Western Electric Company, Inc. Method of manufacturing a monolithic crystal filter
DE2823540C2 (en) * 1977-06-08 1985-04-18 Kinseki Ltd., Tokio/Tokyo Piezoelectric multiple resonator
US4329666A (en) * 1980-08-11 1982-05-11 Motorola, Inc. Two-pole monolithic crystal filter
US4676993A (en) * 1984-11-29 1987-06-30 General Electric Company Method and apparatus for selectively fine-tuning a coupled-dual resonator crystal and crystal manufactured thereby
US4627379A (en) * 1984-11-29 1986-12-09 General Electric Company Shutter apparatus for fine-tuning a coupled-dual resonator crystal
US4833430A (en) * 1984-11-29 1989-05-23 General Electric Company Coupled-dual resonator crystal
US4839618A (en) * 1987-05-26 1989-06-13 General Electric Company Monolithic crystal filter with wide bandwidth and method of making same
JPH05508293A (en) * 1991-04-22 1993-11-18 モトローラ・インコーポレーテッド Surface mountable piezoelectric device with finishing plate mask in situ
DE69416129T2 (en) * 1994-10-10 1999-07-01 Endress Hauser Gmbh Co A method for operating an ultrasonic transducer and circuit arrangement for performing the method
JPH1098350A (en) * 1996-07-31 1998-04-14 Daishinku Co Piezoelectric vibrating device
US6020797A (en) * 1998-08-21 2000-02-01 Cts Corporation Electrode connection configuration and method for a multi-pole monolithic crystal filter
JP2008206139A (en) * 2007-01-25 2008-09-04 Matsushita Electric Ind Co Ltd Dual mode piezoelectric filter, method of manufacturing the filter, high frequency circuit component and communication device using the filter
JP2008245243A (en) * 2007-02-26 2008-10-09 Epson Toyocom Corp Contour resonator and adjustment method therefor
FR2966306B1 (en) * 2010-10-15 2013-06-14 Commissariat Energie Atomique BAW FILTER WITH SIDE COUPLING USING PHONONIC CRYSTALS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345491A (en) * 1941-11-25 1944-03-28 Bell Telephone Labor Inc Wave transmission network
US2859346A (en) * 1954-07-28 1958-11-04 Motorola Inc Crystal oscillator
US2956184A (en) * 1954-11-01 1960-10-11 Honeywell Regulator Co Transducer
NL277292A (en) * 1961-06-20
US3271704A (en) * 1963-03-25 1966-09-06 Bell Telephone Labor Inc Ultrasonic delay device
US3382381A (en) * 1965-05-27 1968-05-07 Piezo Technology Inc Tab plateback
FR1523518A (en) * 1966-04-11 1968-05-03 Western Electric Co Acoustic device used to transmit energy between two energy circuits

Also Published As

Publication number Publication date
FR2021887A1 (en) 1970-07-24
SE365083B (en) 1974-03-11
NL6916084A (en) 1970-05-04
US3573672A (en) 1971-04-06
DE1953826C2 (en) 1985-02-14
CH501340A (en) 1970-12-31
GB1287002A (en) 1972-08-31
DE1953826A1 (en) 1970-05-21
NL155693B (en) 1978-01-16

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: WESTERN ELECTRIC CY INC.

Effective date: 19841029