FR1032717A - Voice frequency signaling system - Google Patents

Voice frequency signaling system

Info

Publication number
FR1032717A
FR1032717A FR1032717DA FR1032717A FR 1032717 A FR1032717 A FR 1032717A FR 1032717D A FR1032717D A FR 1032717DA FR 1032717 A FR1032717 A FR 1032717A
Authority
FR
France
Prior art keywords
signaling system
voice frequency
frequency signaling
voice
signaling
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR1032717A publication Critical patent/FR1032717A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • 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)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Exchange Systems With Centralized Control (AREA)
FR1032717D 1950-01-12 1951-01-12 Voice frequency signaling system Expired FR1032717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE696503X 1950-01-12

Publications (1)

Publication Number Publication Date
FR1032717A true FR1032717A (en) 1953-07-03

Family

ID=20315345

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1032717D Expired FR1032717A (en) 1950-01-12 1951-01-12 Voice frequency signaling system

Country Status (3)

Country Link
BE (1) BE500568A (en)
FR (1) FR1032717A (en)
GB (1) GB696503A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1539001A (en) * 1967-05-05 1968-09-13 Materiel Telephonique Radiotelephone link system
US3564150A (en) * 1968-06-18 1971-02-16 Int Standard Electric Corp Mobile radio telephone and paging system

Also Published As

Publication number Publication date
GB696503A (en) 1953-09-02
BE500568A (en)

Similar Documents

Publication Publication Date Title
FR1014510A (en) Signaling system
FR951783A (en) Signaling system
FR980185A (en) Audible frequency signaling device
FR948685A (en) Signaling system
FR980088A (en) Voice frequency signaling system
CH297999A (en) AC Signaling Receiver.
FR1066199A (en) Acoustic frequency system
FR1032717A (en) Voice frequency signaling system
FR66157E (en) All-relay telephone system
FR941327A (en) Signaling system
FR922528A (en) Improvement in voice frequency signaling processes
CH318089A (en) Voice frequency receiver
FR1044603A (en) Electrical signaling systems
FR1045310A (en) Frequency modulation signaling system
FR1054473A (en) Voice frequency signaling system
FR992818A (en) Signaling system
FR944499A (en) Radio signaling training system
FR1067022A (en) Signaling lantern
FR1058881A (en) AC signaling system
FR1027232A (en) Snowshoe system
FR56660E (en) AC signaling system
FR1088328A (en) Signaling lantern
FR1022028A (en) Voice frequency signaler
FR1048924A (en) Telephone signaling
FR928243A (en) Signaling system between remote telephone offices or analogues