SE7504573L - Mottagare for multifrekventa signaler - Google Patents

Mottagare for multifrekventa signaler

Info

Publication number
SE7504573L
SE7504573L SE7504573A SE7504573A SE7504573L SE 7504573 L SE7504573 L SE 7504573L SE 7504573 A SE7504573 A SE 7504573A SE 7504573 A SE7504573 A SE 7504573A SE 7504573 L SE7504573 L SE 7504573L
Authority
SE
Sweden
Prior art keywords
tone
frequencies
output
filters
frequency
Prior art date
Application number
SE7504573A
Other languages
Unknown language ( )
English (en)
Swedish (sv)
Inventor
C Coppens
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 SE7504573L publication Critical patent/SE7504573L/

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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
SE7504573A 1974-04-24 1975-04-21 Mottagare for multifrekventa signaler SE7504573L (sv)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SE7504573L true SE7504573L (sv) 1975-10-27

Family

ID=9138073

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7504573A SE7504573L (sv) 1974-04-24 1975-04-21 Mottagare for multifrekventa signaler

Country Status (9)

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

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
FR2269261B1 (OSRAM) 1976-12-17
NL7504828A (nl) 1975-10-28
FR2269261A1 (OSRAM) 1975-11-21
BE827409A (fr) 1975-10-01
IT1037582B (it) 1979-11-20
DE2517807A1 (de) 1975-11-06
IE41016B1 (en) 1979-09-26
IE41016L (en) 1975-10-24
GB1501706A (en) 1978-02-22
CH592994A5 (OSRAM) 1977-11-15

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