FR824763A - Improvements to piezoelectric crystal filters - Google Patents

Improvements to piezoelectric crystal filters

Info

Publication number
FR824763A
FR824763A FR824763DA FR824763A FR 824763 A FR824763 A FR 824763A FR 824763D A FR824763D A FR 824763DA FR 824763 A FR824763 A FR 824763A
Authority
FR
France
Prior art keywords
piezoelectric crystal
crystal filters
filters
piezoelectric
crystal
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
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT 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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Application granted granted Critical
Publication of FR824763A publication Critical patent/FR824763A/en
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
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
    • H03H9/542—Filters comprising resonators of piezo-electric or electrostrictive material including passive elements
FR824763D 1936-07-24 1937-07-23 Improvements to piezoelectric crystal filters Expired FR824763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE824763X 1936-07-24

Publications (1)

Publication Number Publication Date
FR824763A true FR824763A (en) 1938-02-16

Family

ID=6747353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR824763D Expired FR824763A (en) 1936-07-24 1937-07-23 Improvements to piezoelectric crystal filters

Country Status (1)

Country Link
FR (1) FR824763A (en)

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