FR58660E - Device for detecting the existence of electrical potentials - Google Patents

Device for detecting the existence of electrical potentials

Info

Publication number
FR58660E
FR58660E FR58660DA FR58660E FR 58660 E FR58660 E FR 58660E FR 58660D A FR58660D A FR 58660DA FR 58660 E FR58660 E FR 58660E
Authority
FR
France
Prior art keywords
existence
detecting
electrical potentials
potentials
electrical
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)
Inventor
Martinus Den Hertog
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
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR58660E publication Critical patent/FR58660E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
    • H03C1/56—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising variable two-pole elements only
    • H03C1/58—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising variable two-pole elements only comprising diodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors
FR58660D 1945-12-18 1947-12-30 Device for detecting the existence of electrical potentials Expired FR58660E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL654159X 1945-12-18

Publications (1)

Publication Number Publication Date
FR58660E true FR58660E (en) 1954-03-02

Family

ID=19795173

Family Applications (1)

Application Number Title Priority Date Filing Date
FR58660D Expired FR58660E (en) 1945-12-18 1947-12-30 Device for detecting the existence of electrical potentials

Country Status (3)

Country Link
BE (1) BE477322A (en)
FR (1) FR58660E (en)
GB (1) GB654159A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1240947B (en) * 1962-09-12 1967-05-24 Siemens Ag Modulator circuit arrangement for keying in optional frequencies in message transmission systems

Also Published As

Publication number Publication date
GB654159A (en) 1951-06-06
BE477322A (en)

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