BE475752A - Système de signalisation - Google Patents

Système de signalisation

Info

Publication number
BE475752A
BE475752A BE475752A BE475752A BE475752A BE 475752 A BE475752 A BE 475752A BE 475752 A BE475752 A BE 475752A BE 475752 A BE475752 A BE 475752A BE 475752 A BE475752 A BE 475752A
Authority
BE
Belgium
Prior art keywords
signaling system
signaling
Prior art date
Application number
BE475752A
Other languages
English (en)
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of BE475752A publication Critical patent/BE475752A/fr

Links

Classifications

    • 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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • H04Q1/4535—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted with an additional signal transmitted for voice protection
    • 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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1332—Logic circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
BE475752A 1942-05-01 1947-08-30 Système de signalisation BE475752A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US441330A US2332912A (en) 1942-05-01 1942-05-01 Telephone system
US482358A US2356330A (en) 1942-05-01 1943-04-09 Signaling system

Publications (1)

Publication Number Publication Date
BE475752A true BE475752A (fr) 1947-09-30

Family

ID=96738638

Family Applications (1)

Application Number Title Priority Date Filing Date
BE475752A BE475752A (fr) 1942-05-01 1947-08-30 Système de signalisation

Country Status (5)

Country Link
US (2) US2332912A (fr)
BE (1) BE475752A (fr)
CH (1) CH281612A (fr)
FR (1) FR948685A (fr)
GB (1) GB651521A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2428023A (en) * 1942-12-15 1947-09-30 Standard Telephones Cables Ltd Electric impulse receiving and timing arrangement
FR922489A (fr) * 1945-02-20 1947-06-24
US2620401A (en) * 1945-04-04 1952-12-02 Vigren Sten Daniel Automatic telephone system
BE470519A (fr) * 1946-01-26
NL67517C (fr) * 1947-04-24
US2470145A (en) * 1947-09-25 1949-05-17 American Telephone & Telegraph Multifrequency signaling system
US2484226A (en) * 1947-10-17 1949-10-11 Bell Telephone Labor Inc Indicating circuit
US2658189A (en) * 1948-01-09 1953-11-03 Bell Telephone Labor Inc Signaling system based on orthogonal functions
US2636947A (en) * 1949-12-16 1953-04-28 Bell Telephone Labor Inc Two-way trunk for pulse conversion systems
US2682576A (en) * 1951-01-20 1954-06-29 Irving H Selden Telephone system
US2854519A (en) * 1956-04-18 1958-09-30 Gen Dynamics Corp Telephone system including line identifying means
NL252835A (fr) * 1959-06-23
US3187107A (en) * 1960-03-04 1965-06-01 Int Standard Electric Corp Voice-frequency key-dialing subscriber's station
US3131264A (en) * 1960-04-13 1964-04-28 Int Standard Electric Corp Multi-frequency signalling receivers
US3140468A (en) * 1960-05-04 1964-07-07 Gen Signal Corp Selective calling system
US3259697A (en) * 1962-11-28 1966-07-05 Bell Telephone Labor Inc Telephone signaling system
DE1232214B (de) * 1964-12-15 1967-01-12 Standard Elektrik Lorenz Ag Tonfrequentes Tastwahlverfahren fuer Fernmelde-, insbesondere Fernsprechanlagen

Also Published As

Publication number Publication date
GB651521A (en) 1951-04-04
CH281612A (de) 1952-03-15
US2332912A (en) 1943-10-26
US2356330A (en) 1944-08-22
FR948685A (fr) 1949-08-08

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