FR2437070A1 - Selecteur de frequence - Google Patents
Selecteur de frequenceInfo
- Publication number
- FR2437070A1 FR2437070A1 FR7923567A FR7923567A FR2437070A1 FR 2437070 A1 FR2437070 A1 FR 2437070A1 FR 7923567 A FR7923567 A FR 7923567A FR 7923567 A FR7923567 A FR 7923567A FR 2437070 A1 FR2437070 A1 FR 2437070A1
- Authority
- FR
- France
- Prior art keywords
- frequency selector
- surface acoustic
- reflective electrodes
- propagation path
- acoustic waves
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/36—Devices for manipulating acoustic surface waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F7/00—Parametric amplifiers
- H03F7/04—Parametric amplifiers using variable-capacitance element; using variable-permittivity element
-
- 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
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
- H03H9/14508—Polyphase SAW transducers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
L'INVENTION CONCERNE UN SELECTEUR DE FREQUENCE. SELON L'INVENTION, IL COMPREND UN DISPOSITIF PIEZOELECTRIQUE 5, DES TRANSDUCTEURS UNIDIRECTIONNELS D'ONDES ACOUSTIQUES DE SURFACE D'ENTREE ET DE SORTIE 1, RESPECTIVEMENT, CHACUN ETANT DISPOSE DANS UN TRAJET DE PROPAGATION D'ONDES ACOUSTIQUES SUR LE DISPOSITIF PIEZOELECTRIQUE; DES ELECTRODES REFLECHISSANTES 3, 4 DISPOSEES DANS LE TRAJET DE PROPAGATION SUR DES COTES OPPOSES DES TRANSDUCTEURS, A PROXIMITE D'EUX; ET UN MOYEN 10 POUR APPLIQUER DES SIGNAUX EN COURANT ALTERNATIF AUX ELECTRODES REFLECHISSANTES RESPECTIVEMENT. L'INVENTION S'APPLIQUE NOTAMMENT A LA PROPAGATION DES ONDES ACOUSTIQUES DE SURFACE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11701078A JPS5544245A (en) | 1978-09-22 | 1978-09-22 | Frequency selection unit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2437070A1 true FR2437070A1 (fr) | 1980-04-18 |
FR2437070B1 FR2437070B1 (fr) | 1984-10-26 |
Family
ID=14701215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7923567A Granted FR2437070A1 (fr) | 1978-09-22 | 1979-09-21 | Selecteur de frequence |
Country Status (6)
Country | Link |
---|---|
US (1) | US4254388A (fr) |
JP (1) | JPS5544245A (fr) |
DE (1) | DE2938354A1 (fr) |
FR (1) | FR2437070A1 (fr) |
GB (1) | GB2035005B (fr) |
NL (1) | NL7907069A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3029435A1 (fr) * | 2014-12-08 | 2016-06-10 | Commissariat Energie Atomique | Dispositif vibrant comportant des reflecteurs mecaniques encastres pour definir une zone active de propagation de modes de plaque et appareil mobile comportant le dispositif |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835404B2 (ja) * | 1979-12-27 | 1983-08-02 | クラリオン株式会社 | 弾性表面波パラメトリック装置 |
US4354166A (en) * | 1980-10-23 | 1982-10-12 | United Technologies Corporation | Carrier concentration controlled surface acoustic wave resonator and oscillator |
JP2817041B2 (ja) * | 1986-09-19 | 1998-10-27 | 株式会社日立製作所 | 弾性表面波装置 |
DE4330438B4 (de) * | 1992-09-09 | 2010-07-01 | Hitachi, Ltd. | Oberflächenakustikwelleneinrichtung |
GB2376362A (en) * | 2001-06-06 | 2002-12-11 | Transense Technologies Plc | Sensor apparatus including unidirectional SAW device and reflector |
US6459345B1 (en) * | 2001-08-08 | 2002-10-01 | The United States Of America As Represented By The Secretary Of The Army | Programmable saw filter including unidirectional transducers |
US7750752B1 (en) * | 2007-06-13 | 2010-07-06 | The United States Of America As Represented By The Secretary Of The Army | Programmable SAW filter module |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1324069A (en) * | 1970-06-30 | 1973-07-18 | Ibm | Parametric devices |
FR2278200A1 (fr) * | 1974-07-12 | 1976-02-06 | Thomson Csf | Dispositif electromecanique a ongles elastiques de surface |
DE2441614A1 (de) * | 1974-08-30 | 1976-03-11 | Licentia Gmbh | Akustisches oberflaechenwellenfilter |
US3982113A (en) * | 1974-11-05 | 1976-09-21 | Bell Telephone Laboratories, Incorporated | Acoustoelectric wave semiconductor signal processing apparatus with storage of weighting factor |
GB1483993A (en) * | 1976-03-25 | 1977-08-24 | Standard Telephones Cables Ltd | Surface acoustic wave devices |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3816753A (en) * | 1971-10-18 | 1974-06-11 | Univ Leland Stanford Junior | Parametric acoustic surface wave apparatus |
JPS4917689A (fr) * | 1972-06-05 | 1974-02-16 | ||
US3827002A (en) * | 1973-05-18 | 1974-07-30 | Us Navy | Tunable electroacoustic transducers |
US3851280A (en) * | 1973-08-01 | 1974-11-26 | Texas Instruments Inc | Non-linear signal processing device using square law detection of surface elastic waves with insulated gate field effect transistor |
US3866154A (en) * | 1973-12-03 | 1975-02-11 | Westinghouse Electric Corp | Broadband unidirectional surface wave transducer |
US3925653A (en) * | 1974-01-21 | 1975-12-09 | Univ Leland Stanford Junior | Apparatus for transforming electronics signals between the time and frequency domains utilizing acoustic waves |
US4162466A (en) * | 1977-09-28 | 1979-07-24 | University Of Illinois Foundation | Surface acoustic wave resonator |
-
1978
- 1978-09-22 JP JP11701078A patent/JPS5544245A/ja active Pending
-
1979
- 1979-09-12 US US06/074,626 patent/US4254388A/en not_active Expired - Lifetime
- 1979-09-19 GB GB7932505A patent/GB2035005B/en not_active Expired
- 1979-09-21 FR FR7923567A patent/FR2437070A1/fr active Granted
- 1979-09-21 NL NL7907069A patent/NL7907069A/nl not_active Application Discontinuation
- 1979-09-21 DE DE19792938354 patent/DE2938354A1/de not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1324069A (en) * | 1970-06-30 | 1973-07-18 | Ibm | Parametric devices |
FR2278200A1 (fr) * | 1974-07-12 | 1976-02-06 | Thomson Csf | Dispositif electromecanique a ongles elastiques de surface |
DE2441614A1 (de) * | 1974-08-30 | 1976-03-11 | Licentia Gmbh | Akustisches oberflaechenwellenfilter |
US3982113A (en) * | 1974-11-05 | 1976-09-21 | Bell Telephone Laboratories, Incorporated | Acoustoelectric wave semiconductor signal processing apparatus with storage of weighting factor |
GB1483993A (en) * | 1976-03-25 | 1977-08-24 | Standard Telephones Cables Ltd | Surface acoustic wave devices |
Non-Patent Citations (2)
Title |
---|
EXBK/76 * |
EXBK/78 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3029435A1 (fr) * | 2014-12-08 | 2016-06-10 | Commissariat Energie Atomique | Dispositif vibrant comportant des reflecteurs mecaniques encastres pour definir une zone active de propagation de modes de plaque et appareil mobile comportant le dispositif |
WO2016091708A1 (fr) * | 2014-12-08 | 2016-06-16 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Dispositif vibrant comportant des reflecteurs mecaniques encastres pour definir une zone active de propagation de modes de plaque et appareil mobile comportant le dispositif |
US10503259B2 (en) | 2014-12-08 | 2019-12-10 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Vibrating device comprising embedded mechanical reflectors for defining an active plate mode propagation area and mobile apparatus comprising the device |
Also Published As
Publication number | Publication date |
---|---|
GB2035005A (en) | 1980-06-11 |
DE2938354A1 (de) | 1980-04-03 |
FR2437070B1 (fr) | 1984-10-26 |
US4254388A (en) | 1981-03-03 |
NL7907069A (nl) | 1980-03-25 |
JPS5544245A (en) | 1980-03-28 |
GB2035005B (en) | 1982-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |