FR2145750A5 - - Google Patents
Info
- Publication number
- FR2145750A5 FR2145750A5 FR7125175A FR7125175A FR2145750A5 FR 2145750 A5 FR2145750 A5 FR 2145750A5 FR 7125175 A FR7125175 A FR 7125175A FR 7125175 A FR7125175 A FR 7125175A FR 2145750 A5 FR2145750 A5 FR 2145750A5
- 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
Links
Classifications
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- 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
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- 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
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- 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
-
- 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
- H03H9/0222—Details of interface-acoustic, boundary, pseudo-acoustic or Stonely wave devices
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7125175A FR2145750A5 (en) | 1971-07-09 | 1971-07-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7125175A FR2145750A5 (en) | 1971-07-09 | 1971-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2145750A5 true FR2145750A5 (en) | 1973-02-23 |
Family
ID=9080103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7125175A Expired FR2145750A5 (en) | 1971-07-09 | 1971-07-09 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2145750A5 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2799906A1 (en) * | 1999-10-15 | 2001-04-20 | Pierre Tournois | Mobile telephone communications/remote car door opening acoustic filter construction having two solid structures with exponentially decreasing acoustic power perpendicular central interdigital acoustic region and single plane propagating. |
FR2837636A1 (en) * | 2002-03-19 | 2003-09-26 | Thales Sa | Acoustic wave interface filters having two section optimally cut Lithium Tantalate crystalline substrate material with assembled interface zone propagating acoustic waves/forming electroacoustic transducers. |
-
1971
- 1971-07-09 FR FR7125175A patent/FR2145750A5/fr not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2799906A1 (en) * | 1999-10-15 | 2001-04-20 | Pierre Tournois | Mobile telephone communications/remote car door opening acoustic filter construction having two solid structures with exponentially decreasing acoustic power perpendicular central interdigital acoustic region and single plane propagating. |
WO2001029964A1 (en) * | 1999-10-15 | 2001-04-26 | Pierre Tournois | Interface acoustic wave filter, especially for wireless connections |
JP2003512637A (en) * | 1999-10-15 | 2003-04-02 | トルノワ,ピエ−ル | Interface sound filters, especially for wireless connections |
US6737941B1 (en) * | 1999-10-15 | 2004-05-18 | Pierre Tournois | Interface acoustic waves filter, especially for wireless connections |
JP4820037B2 (en) * | 1999-10-15 | 2011-11-24 | トルノワ,ピエ−ル | Interface acoustic filter, especially for wireless connection |
FR2837636A1 (en) * | 2002-03-19 | 2003-09-26 | Thales Sa | Acoustic wave interface filters having two section optimally cut Lithium Tantalate crystalline substrate material with assembled interface zone propagating acoustic waves/forming electroacoustic transducers. |
WO2003098800A2 (en) * | 2002-03-19 | 2003-11-27 | Thales | Device with interface sound waves made of lithium tantalate |
WO2003098800A3 (en) * | 2002-03-19 | 2004-05-27 | Thales Sa | Device with interface sound waves made of lithium tantalate |
US7126251B2 (en) | 2002-03-19 | 2006-10-24 | Thales | Interface acoustic wave device made of lithium tantalate |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |