FR2220930B1 - - Google Patents

Info

Publication number
FR2220930B1
FR2220930B1 FR7308560A FR7308560A FR2220930B1 FR 2220930 B1 FR2220930 B1 FR 2220930B1 FR 7308560 A FR7308560 A FR 7308560A FR 7308560 A FR7308560 A FR 7308560A FR 2220930 B1 FR2220930 B1 FR 2220930B1
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
FR7308560A
Other versions
FR2220930A1 (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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7308560A priority Critical patent/FR2220930B1/fr
Priority to US448083A priority patent/US3893047A/en
Priority to GB1060374A priority patent/GB1453391A/en
Priority to DE2411218A priority patent/DE2411218A1/de
Publication of FR2220930A1 publication Critical patent/FR2220930A1/fr
Application granted granted Critical
Publication of FR2220930B1 publication Critical patent/FR2220930B1/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 devices; Electromechanical resonators
    • H03H9/30—Time-delay networks
    • H03H9/42—Time-delay networks using surface acoustic waves
    • H03H9/44—Frequency dependent delay lines, e.g. dispersive delay lines
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/02716—Tilted, fan shaped or slanted grating lines
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02779—Continuous surface reflective arrays
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02795—Multi-strip couplers as track changers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/0296—Surface acoustic wave [SAW] devices having both acoustic and non-acoustic properties
    • H03H9/02968—Surface acoustic wave [SAW] devices having both acoustic and non-acoustic properties with optical devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/30—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/72—Networks using surface acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR7308560A 1973-03-09 1973-03-09 Expired FR2220930B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7308560A FR2220930B1 (fr) 1973-03-09 1973-03-09
US448083A US3893047A (en) 1973-03-09 1974-03-04 Acoustic surface wave transmission system
GB1060374A GB1453391A (en) 1973-03-09 1974-03-08 Acoustic surface wave transmission system
DE2411218A DE2411218A1 (de) 1973-03-09 1974-03-08 Anordnung zur uebertragung von akustischen oberflaechenwellen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7308560A FR2220930B1 (fr) 1973-03-09 1973-03-09

Publications (2)

Publication Number Publication Date
FR2220930A1 FR2220930A1 (fr) 1974-10-04
FR2220930B1 true FR2220930B1 (fr) 1976-05-21

Family

ID=9116074

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7308560A Expired FR2220930B1 (fr) 1973-03-09 1973-03-09

Country Status (4)

Country Link
US (1) US3893047A (fr)
DE (1) DE2411218A1 (fr)
FR (1) FR2220930B1 (fr)
GB (1) GB1453391A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266395B1 (fr) * 1974-03-26 1980-10-31 Thomson Csf
GB1495147A (en) * 1974-08-16 1977-12-14 Secr Defence Surface acoustic wave devices
FR2326094A1 (fr) * 1975-09-26 1977-04-22 Thomson Csf Dispositif de lecture bidimensionnelle d'image optique, utilisant des ondes elastiques de surface
US4387353A (en) * 1977-09-12 1983-06-07 The United States Of America As Represented By The Secretary Of The Navy Active waveguide coupler for surface acoustic waves
FR2407571A1 (fr) * 1977-10-25 1979-05-25 Thomson Csf Dispositif piezoelectrique a couche de selenium
US4620167A (en) * 1985-05-09 1986-10-28 Trw Inc. Surface acoustic wave systems and methods
DE3937871A1 (de) * 1989-11-14 1991-05-16 Siemens Ag Oberflaechenwellen-reflektorfilter
EP0950234B1 (fr) * 1996-12-25 2004-05-26 Elo Touchsystems, Inc. Transducteur a grille pour ecran tactile acoustique
US6188160B1 (en) 1997-09-12 2001-02-13 University Of Kentucky Research Foundation Smart material control system and related method
WO2010097710A1 (fr) * 2009-02-27 2010-09-02 Dalhousie University Système d'imagerie ultrasonore haute fréquence

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568102A (en) * 1967-07-06 1971-03-02 Litton Precision Prod Inc Split surface wave acoustic delay line
US3701147A (en) * 1969-01-22 1972-10-24 Us Navy Surface wave devices for signal processing
US3621482A (en) * 1969-12-04 1971-11-16 Zenith Radio Corp Tunable surface-wave signal-translating device
DE2115412A1 (de) * 1971-03-30 1972-10-12 Siemens Ag Piezoelektrisches Filter nach dem Oberfl ächenwellenprinzip

Also Published As

Publication number Publication date
DE2411218A1 (de) 1974-09-12
US3893047A (en) 1975-07-01
GB1453391A (en) 1976-10-20
FR2220930A1 (fr) 1974-10-04

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Legal Events

Date Code Title Description
ST Notification of lapse