FR2170291A5 - - Google Patents

Info

Publication number
FR2170291A5
FR2170291A5 FR7140292A FR7140292A FR2170291A5 FR 2170291 A5 FR2170291 A5 FR 2170291A5 FR 7140292 A FR7140292 A FR 7140292A FR 7140292 A FR7140292 A FR 7140292A FR 2170291 A5 FR2170291 A5 FR 2170291A5
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.)
Expired
Application number
FR7140292A
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.)
Gouvernement de la Republique Francaise
Original Assignee
Gouvernement de la Republique Francaise
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 Gouvernement de la Republique Francaise filed Critical Gouvernement de la Republique Francaise
Priority to FR7140292A priority Critical patent/FR2170291A5/fr
Priority to SE7213643A priority patent/SE389246B/xx
Priority to FR7238716A priority patent/FR2205253A6/fr
Priority to US00304950A priority patent/US3787786A/en
Priority to DE2254903A priority patent/DE2254903A1/de
Priority to CA156,251*7A priority patent/CA958086A/en
Priority to GB5210772A priority patent/GB1412264A/en
Priority to NL7215205A priority patent/NL7215205A/xx
Application granted granted Critical
Publication of FR2170291A5 publication Critical patent/FR2170291A5/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
    • H03H9/30—Time-delay networks
    • H03H9/42—Time-delay networks using surface acoustic waves
    • H03H9/423—Time-delay networks using surface acoustic waves with adjustable delay time

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR7140292A 1971-11-10 1971-11-10 Expired FR2170291A5 (enExample)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7140292A FR2170291A5 (enExample) 1971-11-10 1971-11-10
SE7213643A SE389246B (sv) 1971-11-10 1972-10-23 Fordrojningsledning
FR7238716A FR2205253A6 (enExample) 1971-11-10 1972-10-31
US00304950A US3787786A (en) 1971-11-10 1972-11-09 Continuously variable ultrasonic delay line
DE2254903A DE2254903A1 (de) 1971-11-10 1972-11-09 Ultraschallverzoegerungsleitung
CA156,251*7A CA958086A (en) 1971-11-10 1972-11-09 Ligne a retard ultrasonique continument variable
GB5210772A GB1412264A (en) 1971-11-10 1972-11-10 Continuously variable acoustic surface wave delay lines
NL7215205A NL7215205A (enExample) 1971-11-10 1972-11-10

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7140292A FR2170291A5 (enExample) 1971-11-10 1971-11-10
FR7238716A FR2205253A6 (enExample) 1971-11-10 1972-10-31

Publications (1)

Publication Number Publication Date
FR2170291A5 true FR2170291A5 (enExample) 1973-09-14

Family

ID=26216712

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7140292A Expired FR2170291A5 (enExample) 1971-11-10 1971-11-10
FR7238716A Expired FR2205253A6 (enExample) 1971-11-10 1972-10-31

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7238716A Expired FR2205253A6 (enExample) 1971-11-10 1972-10-31

Country Status (7)

Country Link
US (1) US3787786A (enExample)
CA (1) CA958086A (enExample)
DE (1) DE2254903A1 (enExample)
FR (2) FR2170291A5 (enExample)
GB (1) GB1412264A (enExample)
NL (1) NL7215205A (enExample)
SE (1) SE389246B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037175A (en) * 1974-01-02 1977-07-19 University Of Illinois Foundation Variable delay device
FR2266395B1 (enExample) * 1974-03-26 1980-10-31 Thomson Csf
US9099982B2 (en) * 2012-01-25 2015-08-04 International Business Machines Corporation Method of manufacturing switching filters and design structures

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103640A (en) * 1961-06-19 1963-09-10 Lab For Electronics Inc Variable ultrasonic delay line
US3360749A (en) * 1964-12-09 1967-12-26 Bell Telephone Labor Inc Elastic wave delay device
US3436688A (en) * 1966-05-24 1969-04-01 Lab For Electronics Inc Variable delay line with movable electrode
US3676721A (en) * 1970-08-28 1972-07-11 Iit Res Inst Composite surface-wave transducer

Also Published As

Publication number Publication date
CA958086A (en) 1974-11-19
FR2205253A6 (enExample) 1974-05-24
GB1412264A (en) 1975-10-29
NL7215205A (enExample) 1973-05-14
DE2254903A1 (de) 1973-05-17
SE389246B (sv) 1976-10-25
US3787786A (en) 1974-01-22

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Legal Events

Date Code Title Description
ST Notification of lapse