CH592994A5 - - Google Patents

Info

Publication number
CH592994A5
CH592994A5 CH407275A CH407275A CH592994A5 CH 592994 A5 CH592994 A5 CH 592994A5 CH 407275 A CH407275 A CH 407275A CH 407275 A CH407275 A CH 407275A CH 592994 A5 CH592994 A5 CH 592994A5
Authority
CH
Switzerland
Application number
CH407275A
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of CH592994A5 publication Critical patent/CH592994A5/xx

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
CH407275A 1974-04-24 1975-04-07 CH592994A5 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7414300A FR2269261B1 (ja) 1974-04-24 1974-04-24

Publications (1)

Publication Number Publication Date
CH592994A5 true CH592994A5 (ja) 1977-11-15

Family

ID=9138073

Family Applications (1)

Application Number Title Priority Date Filing Date
CH407275A CH592994A5 (ja) 1974-04-24 1975-04-07

Country Status (9)

Country Link
BE (1) BE827409A (ja)
CH (1) CH592994A5 (ja)
DE (1) DE2517807A1 (ja)
FR (1) FR2269261B1 (ja)
GB (1) GB1501706A (ja)
IE (1) IE41016B1 (ja)
IT (1) IT1037582B (ja)
NL (1) NL7504828A (ja)
SE (1) SE7504573L (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2370386A1 (fr) * 1976-11-05 1978-06-02 Constr Telephoniques Melangeur pour recepteur de signaux multifrequences
FR2485843B1 (fr) * 1980-06-25 1986-11-07 Cit Alcatel Recepteur numerique de frequences

Also Published As

Publication number Publication date
IT1037582B (it) 1979-11-20
SE7504573L (sv) 1975-10-27
IE41016B1 (en) 1979-09-26
IE41016L (en) 1975-10-24
FR2269261B1 (ja) 1976-12-17
BE827409A (fr) 1975-10-01
NL7504828A (nl) 1975-10-28
GB1501706A (en) 1978-02-22
FR2269261A1 (ja) 1975-11-21
DE2517807A1 (de) 1975-11-06

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Legal Events

Date Code Title Description
PL Patent ceased