FR2373926B1 - - Google Patents

Info

Publication number
FR2373926B1
FR2373926B1 FR7637291A FR7637291A FR2373926B1 FR 2373926 B1 FR2373926 B1 FR 2373926B1 FR 7637291 A FR7637291 A FR 7637291A FR 7637291 A FR7637291 A FR 7637291A FR 2373926 B1 FR2373926 B1 FR 2373926B1
Authority
FR
France
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
FR7637291A
Other languages
French (fr)
Other versions
FR2373926A1 (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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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
Application filed by CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Priority to FR7637291A priority Critical patent/FR2373926A1/fr
Priority to GB5070677A priority patent/GB1542836A/en
Publication of FR2373926A1 publication Critical patent/FR2373926A1/fr
Application granted granted Critical
Publication of FR2373926B1 publication Critical patent/FR2373926B1/fr
Granted 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
    • H04Q1/45—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)
  • Circuits Of Receivers In General (AREA)
FR7637291A 1976-12-10 1976-12-10 Recepteur de signaux multifrequences Granted FR2373926A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7637291A FR2373926A1 (fr) 1976-12-10 1976-12-10 Recepteur de signaux multifrequences
GB5070677A GB1542836A (en) 1976-12-10 1977-12-06 Multifrequency signal receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7637291A FR2373926A1 (fr) 1976-12-10 1976-12-10 Recepteur de signaux multifrequences

Publications (2)

Publication Number Publication Date
FR2373926A1 FR2373926A1 (fr) 1978-07-07
FR2373926B1 true FR2373926B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1982-12-10

Family

ID=9180916

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637291A Granted FR2373926A1 (fr) 1976-12-10 1976-12-10 Recepteur de signaux multifrequences

Country Status (2)

Country Link
FR (1) FR2373926A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1542836A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555435A (en) * 1968-11-21 1971-01-12 Robert E Vosteen Multifrequency signal detector
US3686576A (en) * 1970-12-18 1972-08-22 Ibm Parallel tone detector
NL7101521A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-02-05 1972-08-08
US3914557A (en) * 1973-04-11 1975-10-21 Bell Telephone Labor Inc Multifrequency tone detecting arrangement
FR2295665A1 (fr) * 1974-12-18 1976-07-16 Labo Cent Telecommunicat Recepteur numerique de signaux multifrequences

Also Published As

Publication number Publication date
FR2373926A1 (fr) 1978-07-07
GB1542836A (en) 1979-03-28

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Legal Events

Date Code Title Description
TP Transmission of property