NL142041B - Telefoonstelsel met een discriminator en pulsvormingsketen. - Google Patents

Telefoonstelsel met een discriminator en pulsvormingsketen.

Info

Publication number
NL142041B
NL142041B NL63290181A NL290181A NL142041B NL 142041 B NL142041 B NL 142041B NL 63290181 A NL63290181 A NL 63290181A NL 290181 A NL290181 A NL 290181A NL 142041 B NL142041 B NL 142041B
Authority
NL
Netherlands
Prior art keywords
discriminator
telephone system
pulse chain
pulse
chain
Prior art date
Application number
NL63290181A
Other languages
English (en)
Dutch (nl)
Original Assignee
Bell Telephone Mfg
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 Bell Telephone Mfg filed Critical Bell Telephone Mfg
Publication of NL142041B publication Critical patent/NL142041B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G19/00—Refining hydrocarbon oils in the absence of hydrogen, by alkaline treatment
    • C10G19/08—Recovery of used refining agents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
    • H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Interface Circuits In Exchanges (AREA)
NL63290181A 1962-03-22 1963-03-14 Telefoonstelsel met een discriminator en pulsvormingsketen. NL142041B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US181699A US3204042A (en) 1962-03-22 1962-03-22 Discriminator and pulse forming circuit

Publications (1)

Publication Number Publication Date
NL142041B true NL142041B (nl) 1974-04-16

Family

ID=22665406

Family Applications (2)

Application Number Title Priority Date Filing Date
NL290181D NL290181A (fr) 1962-03-22
NL63290181A NL142041B (nl) 1962-03-22 1963-03-14 Telefoonstelsel met een discriminator en pulsvormingsketen.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL290181D NL290181A (fr) 1962-03-22

Country Status (4)

Country Link
US (1) US3204042A (fr)
CH (1) CH414736A (fr)
GB (1) GB978369A (fr)
NL (2) NL142041B (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2299822A (en) * 1940-04-05 1942-10-27 Bell Telephone Labor Inc Signaling system
US2552013A (en) * 1947-04-22 1951-05-08 Gen Railway Signal Co Pulse duration discriminator
US2503371A (en) * 1949-02-21 1950-04-11 Bell Telephone Labor Inc Selective signaling system
US2912579A (en) * 1955-12-09 1959-11-10 Itt Pulse width and repetition rate discriminator
DE1063640B (de) * 1956-11-03 1959-08-20 Philips Nv Impuls-Selektionsschaltung mit einem Transistor
US2978615A (en) * 1957-05-01 1961-04-04 Hughes Aircraft Co Electric trigger circuits
NL240820A (fr) * 1958-07-03
US3122650A (en) * 1960-11-07 1964-02-25 Sylvania Electric Prod Sense winding amplification and discrimination circuits
USRE26227E (en) * 1961-01-30 1967-06-27 Electronic switching system and line circuit therefor

Also Published As

Publication number Publication date
NL290181A (fr)
CH414736A (de) 1966-06-15
GB978369A (en) 1964-12-23
US3204042A (en) 1965-08-31

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: BELL TELE