GB1412264A - Continuously variable acoustic surface wave delay lines - Google Patents

Continuously variable acoustic surface wave delay lines

Info

Publication number
GB1412264A
GB1412264A GB5210772A GB5210772A GB1412264A GB 1412264 A GB1412264 A GB 1412264A GB 5210772 A GB5210772 A GB 5210772A GB 5210772 A GB5210772 A GB 5210772A GB 1412264 A GB1412264 A GB 1412264A
Authority
GB
United Kingdom
Prior art keywords
input
electrode
transducer
grid
output
Prior art date
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
GB5210772A
Other languages
English (en)
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
Publication of GB1412264A publication Critical patent/GB1412264A/en
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)
GB5210772A 1971-11-10 1972-11-10 Continuously variable acoustic surface wave delay lines Expired GB1412264A (en)

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
GB1412264A true GB1412264A (en) 1975-10-29

Family

ID=26216712

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5210772A Expired GB1412264A (en) 1971-11-10 1972-11-10 Continuously variable acoustic surface wave delay lines

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
DE2254903A1 (de) 1973-05-17
US3787786A (en) 1974-01-22
FR2205253A6 (enExample) 1974-05-24
CA958086A (en) 1974-11-19
NL7215205A (enExample) 1973-05-14
SE389246B (sv) 1976-10-25
FR2170291A5 (enExample) 1973-09-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee