NL183330C - Inrichting werkend met akoestische oppervlaktegolven. - Google Patents
Inrichting werkend met akoestische oppervlaktegolven.Info
- Publication number
- NL183330C NL183330C NLAANVRAGE7503373,A NL7503373A NL183330C NL 183330 C NL183330 C NL 183330C NL 7503373 A NL7503373 A NL 7503373A NL 183330 C NL183330 C NL 183330C
- Authority
- NL
- Netherlands
- Prior art keywords
- device operating
- surface waves
- acoustic surface
- acoustic
- waves
- Prior art date
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
- H03H9/02—Details
- H03H9/125—Driving means, e.g. electrodes, coils
- H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
- H03H9/14544—Transducers of particular shape or position
- H03H9/14552—Transducers of particular shape or position comprising split fingers
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/453,616 US3987376A (en) | 1974-03-22 | 1974-03-22 | Acoustic surface wave device with harmonic coupled transducers |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7503373A NL7503373A (nl) | 1975-09-24 |
NL183330B NL183330B (nl) | 1988-04-18 |
NL183330C true NL183330C (nl) | 1988-09-16 |
Family
ID=23801305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NLAANVRAGE7503373,A NL183330C (nl) | 1974-03-22 | 1975-03-20 | Inrichting werkend met akoestische oppervlaktegolven. |
Country Status (8)
Country | Link |
---|---|
US (1) | US3987376A (nl) |
JP (1) | JPS5744256B2 (nl) |
AU (1) | AU504238B2 (nl) |
CA (1) | CA1049646A (nl) |
DE (1) | DE2512671A1 (nl) |
FR (1) | FR2265220B1 (nl) |
GB (1) | GB1490882A (nl) |
NL (1) | NL183330C (nl) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4075582A (en) * | 1976-06-14 | 1978-02-21 | International Business Machines Corporation | Surface acoustic wave device |
US4249146A (en) * | 1979-02-23 | 1981-02-03 | Trw Inc. | Surface acoustic wave resonators utilizing harmonic frequencies |
DE2909705C2 (de) * | 1979-03-12 | 1984-09-06 | Siemens AG, 1000 Berlin und 8000 München | Akustische Oberflächenwellenanordnung |
JPS5797214A (en) * | 1980-12-08 | 1982-06-16 | Matsushita Electric Ind Co Ltd | Transducer for surface wave |
GB2117593B (en) * | 1982-03-31 | 1985-11-27 | Marconi Co Ltd | Adjusting the frequency response of surface acoustic wave devices |
JPS58213519A (ja) * | 1982-06-07 | 1983-12-12 | Clarion Co Ltd | 弾性表面波装置 |
US4491758A (en) * | 1983-05-03 | 1985-01-01 | R F Monolithics, Inc. | Surface wave device with oversampled withdrawal weighting |
DE3438246A1 (de) * | 1984-10-18 | 1986-04-24 | Siemens AG, 1000 Berlin und 8000 München | Akustisches wellenfilter |
GB8615522D0 (en) * | 1986-06-25 | 1986-07-30 | Gen Electric Co Plc | Surface acoustic wave filters |
JP2870751B2 (ja) * | 1987-02-13 | 1999-03-17 | 株式会社東芝 | 弾性表面波フィルタ |
US5521565A (en) * | 1988-09-28 | 1996-05-28 | Siemens Aktiengesellschaft | Surface wave interdigital transducer and surface wave filter with symmetric or predeterminable asymmetric transfer characteristic between input and output |
US5264751A (en) * | 1989-10-20 | 1993-11-23 | Thomson-Csf | Unilateral surface wave transducer |
US5438306A (en) * | 1992-07-02 | 1995-08-01 | Kazuhiko Yamanouchi | Surface acoustic wave filter device with symmetrical electrode arrangement |
US5952765A (en) * | 1996-11-26 | 1999-09-14 | Trw Inc. | Reduced coupling saw filter |
JP3266846B2 (ja) | 1998-01-20 | 2002-03-18 | 東洋通信機株式会社 | 反射反転型弾性表面波変換器及びフィルタ |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3376572A (en) * | 1966-09-15 | 1968-04-02 | Rca Corp | Electroacoustic wave shaping device |
US3581248A (en) * | 1969-03-26 | 1971-05-25 | Zenith Radio Corp | Acoustic filters |
US3614463A (en) * | 1970-04-01 | 1971-10-19 | Us Air Force | Microwave acoustic surface wave limiter and method of fabrication |
US3742396A (en) * | 1971-07-23 | 1973-06-26 | Stanford Research Inst | Grating surface acoustic wave transducer |
US3727155A (en) * | 1972-03-20 | 1973-04-10 | Zenith Radio Corp | Acoustic surface wave filter |
-
1974
- 1974-03-22 US US05/453,616 patent/US3987376A/en not_active Expired - Lifetime
- 1974-12-19 JP JP49146228A patent/JPS5744256B2/ja not_active Expired
-
1975
- 1975-01-07 GB GB536/75A patent/GB1490882A/en not_active Expired
- 1975-01-09 CA CA217,629A patent/CA1049646A/en not_active Expired
- 1975-01-09 AU AU77201/75A patent/AU504238B2/en not_active Expired
- 1975-03-19 FR FR7508562A patent/FR2265220B1/fr not_active Expired
- 1975-03-20 NL NLAANVRAGE7503373,A patent/NL183330C/nl not_active IP Right Cessation
- 1975-03-21 DE DE19752512671 patent/DE2512671A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
NL183330B (nl) | 1988-04-18 |
AU7720175A (en) | 1976-07-15 |
USB453616I5 (nl) | 1976-01-27 |
JPS5744256B2 (nl) | 1982-09-20 |
FR2265220B1 (nl) | 1980-08-14 |
AU504238B2 (en) | 1979-10-04 |
CA1049646A (en) | 1979-02-27 |
GB1490882A (en) | 1977-11-02 |
DE2512671A1 (de) | 1975-09-25 |
JPS50126351A (nl) | 1975-10-04 |
US3987376A (en) | 1976-10-19 |
NL7503373A (nl) | 1975-09-24 |
FR2265220A1 (nl) | 1975-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NL7501893A (nl) | Sonarinrichting. | |
NL7505903A (nl) | Resonatorinrichting voor akoestische oppervlak- tegolven. | |
SE410141B (sv) | Ultraljudsanordning | |
NL7416835A (nl) | Geluidsabsorberende inrichting. | |
NL186058C (nl) | Microfooninrichting. | |
NL7506585A (nl) | Akoestisch film-op-schuimlaminaat. | |
NL7507711A (nl) | Akoestische oppervlaktegolf-inrichting. | |
SE7506148L (sv) | Ljuddempande platta. | |
NL7514959A (nl) | Akoestisch oppervlaktefilter. | |
NL7508328A (nl) | Acoustische afbeeldinrichting. | |
NL7509774A (nl) | Acoustische oppervlaktegolf-inrichting. | |
IT1039561B (it) | Trasduttori ad estensimetro | |
NL181542C (nl) | Inrichting werkend met akoestische oppervlaktegolven. | |
NL7507698A (nl) | Oppervlaktegolfinrichting. | |
NL183330C (nl) | Inrichting werkend met akoestische oppervlaktegolven. | |
NL7612076A (nl) | Temperatuur-stabiele akoestische oppervlakte- golfinrichting. | |
NL7416771A (nl) | Akoestische testinrichting. | |
FR2293844A1 (fr) | Transducteur acoustique | |
NL7701845A (nl) | Akoestische-oppervlaktegolfinrichting. | |
NL179859C (nl) | Akoestische oppervalktegolfinrichting. | |
FR2278217A1 (fr) | Transducteur acoustique | |
BR7503422A (pt) | Dispositivo aperfeicoado de emissao de ondas mecanicas | |
NL7507463A (nl) | Akoestisch oppervlaktegolf-filter. | |
NL7512557A (nl) | Microfooninrichting. | |
SE412473B (sv) | Sidosokande sonarapparat |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
V1 | Lapsed because of non-payment of the annual fee |