NL93729C - Ontvanginrichting voor toonfrequentiesignalen - Google Patents

Ontvanginrichting voor toonfrequentiesignalen

Info

Publication number
NL93729C
NL93729C NL219653A NL219653A NL93729C NL 93729 C NL93729 C NL 93729C NL 219653 A NL219653 A NL 219653A NL 219653 A NL219653 A NL 219653A NL 93729 C NL93729 C NL 93729C
Authority
NL
Netherlands
Prior art keywords
receiving device
frequency signals
tone frequency
tone
signals
Prior art date
Application number
NL219653A
Other languages
English (en)
Dutch (nl)
Original Assignee
Bell Telephone Manf Co Sa
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
Priority claimed from NL160821A external-priority patent/NL81147C/nl
Priority to FR64957D priority Critical patent/FR64957E/fr
Priority to GB16257/52A priority patent/GB712952A/en
Priority to FR65231D priority patent/FR65231E/fr
Application filed by Bell Telephone Manf Co Sa filed Critical Bell Telephone Manf Co Sa
Priority to NL219653A priority patent/NL93729C/nl
Priority to DES55307A priority patent/DE1046116B/de
Priority to FR770718A priority patent/FR75213E/fr
Priority to CH6230758A priority patent/CH372350A/de
Priority to GB24845/58A priority patent/GB831713A/en
Priority to BE570041A priority patent/BE570041A/nl
Publication of NL93729C publication Critical patent/NL93729C/nl
Application granted granted Critical

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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
    • 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
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Amplifiers (AREA)
  • Interface Circuits In Exchanges (AREA)
NL219653A 1951-04-27 1957-08-06 Ontvanginrichting voor toonfrequentiesignalen NL93729C (nl)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR64957D FR64957E (fr) 1951-04-27 1952-06-27 Récepteurs à fréquences vocales
GB16257/52A GB712952A (en) 1951-04-27 1952-06-27 Voice-frequency signal receiver operated by two signal frequencies
FR65231D FR65231E (fr) 1951-04-27 1952-07-04 Récepteurs à fréquences vocales
NL219653A NL93729C (nl) 1951-04-27 1957-08-06 Ontvanginrichting voor toonfrequentiesignalen
DES55307A DE1046116B (de) 1951-04-27 1957-09-27 Schaltungsanordnung zum Empfang von Tonfrequenzsignalen in Fernmelde-, insbesondere Fernsprechanlagen
FR770718A FR75213E (fr) 1951-04-27 1958-07-21 Récepteurs à fréquences vocales
CH6230758A CH372350A (de) 1957-08-06 1958-07-28 Empfangseinrichtung für Tonfrequenzsignale
GB24845/58A GB831713A (en) 1951-04-27 1958-08-01 Improvements in or relating to voice frequency signal receivers
BE570041A BE570041A (nl) 1951-04-27 1958-08-04 Spreekfrequente ontvanger

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL160821A NL81147C (nl) 1951-04-27 1951-04-27 Ontvangstinrichting voor toonfrequentiesignalen
NL219653A NL93729C (nl) 1951-04-27 1957-08-06 Ontvanginrichting voor toonfrequentiesignalen

Publications (1)

Publication Number Publication Date
NL93729C true NL93729C (nl) 1960-02-16

Family

ID=26641579

Family Applications (1)

Application Number Title Priority Date Filing Date
NL219653A NL93729C (nl) 1951-04-27 1957-08-06 Ontvanginrichting voor toonfrequentiesignalen

Country Status (5)

Country Link
BE (1) BE570041A (fr)
DE (1) DE1046116B (fr)
FR (1) FR75213E (fr)
GB (1) GB831713A (fr)
NL (1) NL93729C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103558A (en) * 1959-09-24 1963-09-10 Int Standard Electric Corp ligotky

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745228C (de) * 1939-07-28 1944-03-01 Siemens Ag Elektrischer Signalempfaenger
DE856164C (de) * 1943-10-29 1952-11-20 Siemens Ag Elektrischer Signalempfaenger
DE899373C (de) * 1952-04-22 1953-12-10 Telefonbau & Normalzeit Gmbh Schaltungsanordnung zur Forttschaltung von den Teilnehmerleitungen zugeordneten Gebuehrenanzeigern
DE1013708B (de) 1955-12-22 1957-08-14 Siemens Ag Schaltungsanordnung zum Empfang von Signalspannungen

Also Published As

Publication number Publication date
GB831713A (en) 1960-03-30
DE1046116B (de) 1958-12-11
BE570041A (nl) 1961-07-28
FR75213E (fr) 1961-05-12

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