FR1054013A - Device for measuring the power level in conversation circuits - Google Patents

Device for measuring the power level in conversation circuits

Info

Publication number
FR1054013A
FR1054013A FR1054013DA FR1054013A FR 1054013 A FR1054013 A FR 1054013A FR 1054013D A FR1054013D A FR 1054013DA FR 1054013 A FR1054013 A FR 1054013A
Authority
FR
France
Prior art keywords
measuring
power level
conversation circuits
conversation
circuits
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1054013A publication Critical patent/FR1054013A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/10—AC or DC measuring bridges
    • G01R17/16—AC or DC measuring bridges with discharge tubes or semiconductor devices in one or more arms of the bridge, e.g. voltmeter using a difference amplifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1054013D 1950-10-07 1951-10-08 Device for measuring the power level in conversation circuits Expired FR1054013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1054013X 1950-10-07

Publications (1)

Publication Number Publication Date
FR1054013A true FR1054013A (en) 1954-02-08

Family

ID=4554996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1054013D Expired FR1054013A (en) 1950-10-07 1951-10-08 Device for measuring the power level in conversation circuits

Country Status (2)

Country Link
BE (1) BE506296A (en)
FR (1) FR1054013A (en)

Also Published As

Publication number Publication date
BE506296A (en)

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