FR1006528A - Voice frequency oscillator-signaler - Google Patents

Voice frequency oscillator-signaler

Info

Publication number
FR1006528A
FR1006528A FR1006528DA FR1006528A FR 1006528 A FR1006528 A FR 1006528A FR 1006528D A FR1006528D A FR 1006528DA FR 1006528 A FR1006528 A FR 1006528A
Authority
FR
France
Prior art keywords
signaler
frequency oscillator
voice frequency
voice
oscillator
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)
Inventor
Dorbec
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.)
Societe Anonyme de Telecommunications SAT
Original Assignee
Societe Anonyme de Telecommunications SAT
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 Societe Anonyme de Telecommunications SAT filed Critical Societe Anonyme de Telecommunications SAT
Application granted granted Critical
Publication of FR1006528A publication Critical patent/FR1006528A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
FR1006528D 1948-01-28 1948-01-28 Voice frequency oscillator-signaler Expired FR1006528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR820021X 1948-01-28

Publications (1)

Publication Number Publication Date
FR1006528A true FR1006528A (en) 1952-04-24

Family

ID=9269810

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1006528D Expired FR1006528A (en) 1948-01-28 1948-01-28 Voice frequency oscillator-signaler

Country Status (4)

Country Link
BE (1) BE486823A (en)
DE (1) DE820021C (en)
FR (1) FR1006528A (en)
GB (1) GB656959A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745228C (en) * 1939-07-28 1944-03-01 Siemens Ag Electrical signal receiver

Also Published As

Publication number Publication date
GB656959A (en) 1951-09-05
DE820021C (en) 1951-11-08
BE486823A (en)

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