FR1090934A - Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators - Google Patents

Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators

Info

Publication number
FR1090934A
FR1090934A FR1090934DA FR1090934A FR 1090934 A FR1090934 A FR 1090934A FR 1090934D A FR1090934D A FR 1090934DA FR 1090934 A FR1090934 A FR 1090934A
Authority
FR
France
Prior art keywords
locating
checking
production
another
time
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR1090934A publication Critical patent/FR1090934A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/47—One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/48—Two nitrogen atoms
    • C07D239/49—Two nitrogen atoms with an aralkyl radical, or substituted aralkyl radical, attached in position 5, e.g. trimethoprim
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/04—Distributors combined with modulators or demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electrotherapy Devices (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Rectifiers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Amplifiers (AREA)
FR1090934D 1951-08-13 1952-08-05 Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators Expired FR1090934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE718155X 1951-08-13

Publications (1)

Publication Number Publication Date
FR1090934A true FR1090934A (en) 1955-04-05

Family

ID=6626875

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1090934D Expired FR1090934A (en) 1951-08-13 1952-08-05 Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators
FR69952D Expired FR69952E (en) 1951-08-13 1956-02-06 Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR69952D Expired FR69952E (en) 1951-08-13 1956-02-06 Device for the production of voltage pulses following one another in time, used for locating in particular in telephone installations and for checking these voltage pulse generators

Country Status (5)

Country Link
US (1) US2747023A (en)
BE (2) BE513500A (en)
DE (2) DE897853C (en)
FR (2) FR1090934A (en)
GB (1) GB718155A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1003272B (en) * 1957-06-26 1957-02-28 Siemens Ag Numeric transmitter with a pick-up which searches for marking points marked by memory contacts to determine the number of pulses in a series of pulses, especially for telephone systems
US3308433A (en) * 1963-01-10 1967-03-07 Rca Corp Switching matrix
DE3045512C2 (en) * 1980-12-03 1982-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Electronic switching device for television and audio broadcast programs
US9978270B2 (en) 2014-07-28 2018-05-22 Econolite Group, Inc. Self-configuring traffic signal controller

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2117639A (en) * 1935-08-07 1938-05-17 Fay G Johnson Traffic signal
US2541932A (en) * 1948-05-19 1951-02-13 Bell Telephone Labor Inc Multiplex speech interpolation system
BE496916A (en) * 1949-07-29

Also Published As

Publication number Publication date
DE897853C (en) 1953-11-26
FR69952E (en) 1959-01-30
DE951458C (en) 1956-10-31
BE513500A (en) 1952-08-30
GB718155A (en) 1954-11-10
BE545026A (en) 1959-10-09
US2747023A (en) 1956-05-22

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