FR2143368A1 - - Google Patents

Info

Publication number
FR2143368A1
FR2143368A1 FR7222747A FR7222747A FR2143368A1 FR 2143368 A1 FR2143368 A1 FR 2143368A1 FR 7222747 A FR7222747 A FR 7222747A FR 7222747 A FR7222747 A FR 7222747A FR 2143368 A1 FR2143368 A1 FR 2143368A1
Authority
FR
France
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.)
Granted
Application number
FR7222747A
Other languages
French (fr)
Other versions
FR2143368B1 (enrdf_load_html_response
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.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Publication of FR2143368A1 publication Critical patent/FR2143368A1/fr
Application granted granted Critical
Publication of FR2143368B1 publication Critical patent/FR2143368B1/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
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02614—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves
    • H03H9/02629—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves of the edges

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR7222747A 1971-06-25 1972-06-23 Expired FR2143368B1 (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712131614 DE2131614A1 (de) 1971-06-25 1971-06-25 Funktionselement nach dem Oberflaechenwellenprinzip,insbesondere Frequenzfilter oder Ultraschallverzoegerungsleitung

Publications (2)

Publication Number Publication Date
FR2143368A1 true FR2143368A1 (enrdf_load_html_response) 1973-02-02
FR2143368B1 FR2143368B1 (enrdf_load_html_response) 1973-07-13

Family

ID=5811794

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7222747A Expired FR2143368B1 (enrdf_load_html_response) 1971-06-25 1972-06-23

Country Status (6)

Country Link
BE (1) BE785364A (enrdf_load_html_response)
DE (1) DE2131614A1 (enrdf_load_html_response)
FR (1) FR2143368B1 (enrdf_load_html_response)
GB (1) GB1361912A (enrdf_load_html_response)
IT (1) IT956738B (enrdf_load_html_response)
NL (1) NL7208444A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2363230A1 (fr) * 1976-08-24 1978-03-24 Tokyo Shibaura Electric Co Dispositif a ondes de surface elastiques

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51105252A (en) * 1975-03-13 1976-09-17 Asahi Glass Co Ltd Choonpakotaichensen oyobi sonoseizoho
JP3270042B2 (ja) * 1991-03-28 2002-04-02 エプコス アクチエンゲゼルシャフト 障害音響波成分が発生するのを防止する表面波構造を有する表面波装置
JP2019040919A (ja) * 2017-08-22 2019-03-14 株式会社ディスコ 切削装置及び溝検出方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2363230A1 (fr) * 1976-08-24 1978-03-24 Tokyo Shibaura Electric Co Dispositif a ondes de surface elastiques

Also Published As

Publication number Publication date
BE785364A (fr) 1972-10-16
NL7208444A (enrdf_load_html_response) 1972-12-28
GB1361912A (en) 1974-07-30
FR2143368B1 (enrdf_load_html_response) 1973-07-13
DE2131614A1 (de) 1972-12-28
IT956738B (it) 1973-10-10

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Legal Events

Date Code Title Description
ST Notification of lapse