FR2310029A1 - Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples - Google Patents

Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples

Info

Publication number: FR2310029A1
Authority: FR; France
Prior art keywords: elimination; wave device; elastic wave; device allowing; surface elastic
Prior art date: 1975-04-30
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

FR7513619A

Other languages

English (en)

Other versions

FR2310029B1 (fr

Inventor

Gerard Coussot

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.)

1975-04-30

Filing date

1975-04-30

Publication date

1976-11-26

1975-04-30 Application filed by Thomson CSF SA filed Critical Thomson CSF SA

1975-04-30 Priority to FR7513619A priority Critical patent/FR2310029A1/fr

1976-04-26 Priority to YU1045/76A priority patent/YU37249B/xx

1976-04-27 Priority to GB17114/76A priority patent/GB1551057A/en

1976-04-27 Priority to US05/680,678 priority patent/US4025880A/en

1976-04-28 Priority to BE166514A priority patent/BE841218A/fr

1976-04-29 Priority to CA251,393A priority patent/CA1070784A/fr

1976-04-29 Priority to SU762353461A priority patent/SU652920A3/ru

1976-04-30 Priority to DE19762619290 priority patent/DE2619290A1/de

1976-04-30 Priority to JP51049824A priority patent/JPS51134547A/ja

1976-04-30 Priority to PL1976189206A priority patent/PL110354B1/pl

1976-11-26 Publication of FR2310029A1 publication Critical patent/FR2310029A1/fr

1978-02-24 Application granted granted Critical

1978-02-24 Publication of FR2310029B1 publication Critical patent/FR2310029B1/fr

Status Granted legal-status Critical Current

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
- H03H9/02874—Means for compensation or elimination of undesirable effects of direct coupling between input and output transducers
- 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
- H03H9/02622—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves of the surface, including back surface
- 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
- H03H9/0285—Means for compensation or elimination of undesirable effects of reflections of triple transit echo

Landscapes

Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

FR7513619A 1975-04-30 1975-04-30 Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples Granted FR2310029A1 (fr)

Priority Applications (10)

Application Number	Priority Date	Filing Date	Title
FR7513619A FR2310029A1 (fr)	1975-04-30	1975-04-30	Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples
YU1045/76A YU37249B (en)	1975-04-30	1976-04-26	Electromechanical arrangement with surface elastic waves
US05/680,678 US4025880A (en)	1975-04-30	1976-04-27	Elastic surface wave transmitting device for eliminating multiple transit echoes
GB17114/76A GB1551057A (en)	1975-04-30	1976-04-27	Elastic surface wave transmitting device for eliminating multiple transit echoes
BE166514A BE841218A (fr)	1975-04-30	1976-04-28	Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples
CA251,393A CA1070784A (fr)	1975-04-30	1976-04-29	Dispositif d'emission d'onde de surface elastique pour eliminer les echos de transit multiples
SU762353461A SU652920A3 (ru)	1975-04-30	1976-04-29	Передающее устройство на упругих поверхностных волнах
DE19762619290 DE2619290A1 (de)	1975-04-30	1976-04-30	Mit elastischen oberflaechenwellen arbeitende uebertragungsvorrichtung
JP51049824A JPS51134547A (en)	1975-04-30	1976-04-30	Device for transmitting surface acoustic wave
PL1976189206A PL110354B1 (en)	1975-04-30	1976-04-30	System for transmitting elastic surface waves

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7513619A FR2310029A1 (fr)	1975-04-30	1975-04-30	Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples

Publications (2)

Publication Number	Publication Date
FR2310029A1 true FR2310029A1 (fr)	1976-11-26
FR2310029B1 FR2310029B1 (fr)	1978-02-24

Family

ID=9154693

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7513619A Granted FR2310029A1 (fr)	1975-04-30	1975-04-30	Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples

Country Status (10)

Country	Link
US (1)	US4025880A (fr)
JP (1)	JPS51134547A (fr)
BE (1)	BE841218A (fr)
CA (1)	CA1070784A (fr)
DE (1)	DE2619290A1 (fr)
FR (1)	FR2310029A1 (fr)
GB (1)	GB1551057A (fr)
PL (1)	PL110354B1 (fr)
SU (1)	SU652920A3 (fr)
YU (1)	YU37249B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2358051A1 (fr) *	1976-07-09	1978-02-03	Thomson Csf	Oscillateur a ondes elastiques de surface
JPS55125713A (en) *	1979-03-22	1980-09-27	Toshiba Corp	Surface elastic wave device
JPS58154917A (ja) *	1982-03-10	1983-09-14	Hitachi Ltd	弾性表面波バンドパスフイルタ
DE3425555C2 (de) *	1984-07-11	1994-11-17	Clarion Co Ltd	SAW-Oberflächenwellenbauelement
DE3517254A1 (de) *	1985-05-13	1986-11-13	Siemens AG, 1000 Berlin und 8000 München	Mit akustischen wellen arbeitendes elektrisches filter
JPS6484909A (en) *	1987-09-25	1989-03-30	Nec Corp	Surface acoustic wave device
DE4212517C2 (de) *	1992-04-14	1995-02-23	Siemens Ag	Oberflächenwellenanordnung mit mindestens zwei in Richtung der Hauptwellenausbreitung benachbarten Oberflächenwellen-Strukturen
US10361676B2 (en) *	2017-09-29	2019-07-23	Qorvo Us, Inc.	Baw filter structure with internal electrostatic shielding

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3872410A (en) *	1972-12-04	1975-03-18	Gte Laboratories Inc	Surface wave filter for tv if stage
US3845420A (en) *	1973-03-02	1974-10-29	Raytheon Co	Surface acoustic wave phase control device
US3908137A (en) *	1973-12-26	1975-09-23	Magnavox Co	Apparatus and method for triple transit signal cancellation in an acoustical surface wave device
US3868608A (en) *	1974-04-01	1975-02-25	Gte Sylvania Inc	Surface wave filter
FR2278200A1 (fr) *	1974-07-12	1976-02-06	Thomson Csf	Dispositif electromecanique a ongles elastiques de surface

1975
- 1975-04-30 FR FR7513619A patent/FR2310029A1/fr active Granted
1976
- 1976-04-26 YU YU1045/76A patent/YU37249B/xx unknown
- 1976-04-27 US US05/680,678 patent/US4025880A/en not_active Expired - Lifetime
- 1976-04-27 GB GB17114/76A patent/GB1551057A/en not_active Expired
- 1976-04-28 BE BE166514A patent/BE841218A/fr not_active IP Right Cessation
- 1976-04-29 SU SU762353461A patent/SU652920A3/ru active
- 1976-04-29 CA CA251,393A patent/CA1070784A/fr not_active Expired
- 1976-04-30 DE DE19762619290 patent/DE2619290A1/de not_active Ceased
- 1976-04-30 JP JP51049824A patent/JPS51134547A/ja active Pending
- 1976-04-30 PL PL1976189206A patent/PL110354B1/pl unknown

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number	Publication date
BE841218A (fr)	1976-10-28
GB1551057A (en)	1979-08-22
FR2310029B1 (fr)	1978-02-24
DE2619290A1 (de)	1976-11-11
CA1070784A (fr)	1980-01-29
YU104576A (en)	1983-04-27
SU652920A3 (ru)	1979-03-15
YU37249B (en)	1984-08-31
US4025880A (en)	1977-05-24
JPS51134547A (en)	1976-11-22
PL110354B1 (en)	1980-07-31

Publication	Publication Date	Title
FR2298107A1 (fr)	1976-08-13	Dispositif d'exploration par ultrasons
BE840456A (fr)	1976-10-07	Dispositif de mesure precise des dimensions d'un objet par ultra-sons
BE828660A (fr)	1975-11-03	Dispositif annuleur d'echo
FR2309948A1 (fr)	1976-11-26	Dispositif de positionnement de transducteur
BE838504A (fr)	1976-08-12	Dispositif d'introduction de sonde
FR2308158A1 (fr)	1976-11-12	Dispositif d'exploration magnetique
FR2290786A1 (fr)	1976-06-04	Dispositif a reflexion selective d'ondes elastiques de surface
FR2325243A1 (fr)	1977-04-15	Dispositif mettant a profit des ondes de surfaces acoustiques
BE860227A (fr)	1978-02-15	Dispositif engendrant des ondes de surface acoustiques
FR2282191A1 (fr)	1976-03-12	Dispositif a ondes acoustiques superficielles
FR2345854A1 (fr)	1977-10-21	Dispositif a ondes de surface elastiques
FR2346899A1 (fr)	1977-10-28	Procede de modification de l'influence de la temperature sur le temps de propagation des ondes elastiques de surface et dispositif obtenu par ledit procede
FR2342537A1 (fr)	1977-09-23	Dispositif d'onde acoustique de surface
BE842537A (fr)	1976-10-01	Dispositif a ondes acoustiques de surface
FR2466139B1 (fr)	1988-03-04	Dispositif reflecteur d'ondes acoustiques superficielles
FR2287205A1 (fr)	1976-05-07	Dispositif d'echo-tomographie ultrasonore rapide
FR2310029A1 (fr)	1976-11-26	Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples
FR2418574B1 (fr)	1987-11-13	Dispositif mettant a profit des ondes acoustiques
FR2344180A1 (fr)	1977-10-07	Dispositif magnetostrictif a ondes elastiques de surface
BE828863A (fr)	1975-11-10	Dispositif pour l'emission d'ondes acoustiques par implosion
BE843628A (fr)	1976-10-18	Dispositif de nettoyage de surface d'element photoconducteur
FR2463473B1 (fr)	1986-03-28	Dispositif d'onde acoustique de surface
FR2310605A1 (fr)	1976-12-03	Dispositif pour l'affichage de valeurs analogiques
BE821003A (fr)	1975-04-11	Dispositif a ondes de surface acoustiques
FR2337589A1 (fr)	1977-08-05	Dispositif d'excitation d'ondes notamment d'ondes ultra-sonores incluant une lentille

Legal Events

Date	Code	Title	Description
1985-02-22	ST	Notification of lapse