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
Application number
FR7125175A
Other languages
French (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 FR7125175A priority Critical patent/FR2145750A5/fr
Application granted granted Critical
Publication of FR2145750A5 publication Critical patent/FR2145750A5/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
    • H03H9/423—Time-delay networks using surface acoustic waves with adjustable delay time
    • 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
    • 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
FR7125175A 1971-07-09 1971-07-09 Expired FR2145750A5 (en)

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)

* Cited by examiner, † Cited by third party
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.

Cited By (9)

* Cited by examiner, † Cited by third party
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

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Legal Events

Date Code Title Description
ST Notification of lapse