FR2454223B1 - Dispositif a ondes elastiques de surface pour circuit de brouillage ou de debrouillage d'emissions de television - Google Patents

Dispositif a ondes elastiques de surface pour circuit de brouillage ou de debrouillage d'emissions de television

Info

Publication number
FR2454223B1
FR2454223B1 FR7909682A FR7909682A FR2454223B1 FR 2454223 B1 FR2454223 B1 FR 2454223B1 FR 7909682 A FR7909682 A FR 7909682A FR 7909682 A FR7909682 A FR 7909682A FR 2454223 B1 FR2454223 B1 FR 2454223B1
Authority
FR
France
Prior art keywords
interference
wave device
elastic wave
television broadcasts
surface elastic
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.)
Expired
Application number
FR7909682A
Other languages
English (en)
Other versions
FR2454223A1 (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.)
Telediffusion de France ets Public de Diffusion
Original Assignee
Telediffusion de France ets Public de Diffusion
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 Telediffusion de France ets Public de Diffusion filed Critical Telediffusion de France ets Public de Diffusion
Priority to FR7909682A priority Critical patent/FR2454223B1/fr
Publication of FR2454223A1 publication Critical patent/FR2454223A1/fr
Application granted granted Critical
Publication of FR2454223B1 publication Critical patent/FR2454223B1/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/74—Multiple-port networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
    • H03H9/76—Networks using surface acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR7909682A 1979-04-10 1979-04-10 Dispositif a ondes elastiques de surface pour circuit de brouillage ou de debrouillage d'emissions de television Expired FR2454223B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7909682A FR2454223B1 (fr) 1979-04-10 1979-04-10 Dispositif a ondes elastiques de surface pour circuit de brouillage ou de debrouillage d'emissions de television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7909682A FR2454223B1 (fr) 1979-04-10 1979-04-10 Dispositif a ondes elastiques de surface pour circuit de brouillage ou de debrouillage d'emissions de television

Publications (2)

Publication Number Publication Date
FR2454223A1 FR2454223A1 (fr) 1980-11-07
FR2454223B1 true FR2454223B1 (fr) 1986-11-28

Family

ID=9224395

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909682A Expired FR2454223B1 (fr) 1979-04-10 1979-04-10 Dispositif a ondes elastiques de surface pour circuit de brouillage ou de debrouillage d'emissions de television

Country Status (1)

Country Link
FR (1) FR2454223B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT321367B (de) * 1970-04-29 1975-03-25 Siemens Ag Piezoelektrisches Filter nach dem Oberflächenwellenprinzip
GB1381912A (en) * 1972-03-30 1975-01-29 Standard Telephones Cables Ltd Acoustic wave devices
FR2312881A1 (fr) * 1975-05-29 1976-12-24 Goff Jeannine Le Demodulateurs differentiels a dispositifs a ondes elastiques de surface

Also Published As

Publication number Publication date
FR2454223A1 (fr) 1980-11-07

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FR2454223B1 (fr) Dispositif a ondes elastiques de surface pour circuit de brouillage ou de debrouillage d'emissions de television

Legal Events

Date Code Title Description
ST Notification of lapse