BE454965A - - Google Patents

Info

Publication number
BE454965A
BE454965A BE454965DA BE454965A BE 454965 A BE454965 A BE 454965A BE 454965D A BE454965D A BE 454965DA BE 454965 A BE454965 A BE 454965A
Authority
BE
Belgium
Application number
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.)
Publication of BE454965A publication Critical patent/BE454965A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H04L1/248—Distortion measuring systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/50—Testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
BE454965D 1943-01-19 BE454965A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE906998X 1943-01-19

Publications (1)

Publication Number Publication Date
BE454965A true BE454965A (zh)

Family

ID=6862898

Family Applications (1)

Application Number Title Priority Date Filing Date
BE454965D BE454965A (zh) 1943-01-19

Country Status (2)

Country Link
BE (1) BE454965A (zh)
FR (1) FR906998A (zh)

Also Published As

Publication number Publication date
FR906998A (fr) 1946-02-26

Similar Documents

Publication Publication Date Title
FR957096A (zh)
JPS33009395B1 (zh)
FR964910A (zh)
FR959256A (zh)
FR958847A (zh)
NL70456C (zh)
BE453587A (zh)
BE449608A (zh)
BE452386A (zh)
BE454965A (zh)
BE454696A (zh)
BE455077A (zh)
NL67941C (zh)
BE470106A (zh)
BE468888A (zh)
BE467088A (zh)
BE459184A (zh)
BE458648A (zh)
BE455601A (zh)
BE455621A (zh)
NL98411C (zh)
BE456252A (zh)
BE456272A (zh)
BE456303A (zh)
NL94178C (zh)