IE41016L - Multi-frequency signal receivers - Google Patents

Multi-frequency signal receivers

Info

Publication number
IE41016L
IE41016L IE90875A IE90875A IE41016L IE 41016 L IE41016 L IE 41016L IE 90875 A IE90875 A IE 90875A IE 90875 A IE90875 A IE 90875A IE 41016 L IE41016 L IE 41016L
Authority
IE
Ireland
Prior art keywords
frequency signal
signal receivers
receivers
frequency
signal
Prior art date
Application number
IE90875A
Other versions
IE41016B1 (en
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 IE41016L publication Critical patent/IE41016L/en
Publication of IE41016B1 publication Critical patent/IE41016B1/en

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)
IE90875A 1974-04-24 1975-04-23 Multe-frequency signal receivers IE41016B1 (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
IE41016L true IE41016L (en) 1975-10-24
IE41016B1 IE41016B1 (en) 1979-09-26

Family

ID=9138073

Family Applications (1)

Application Number Title Priority Date Filing Date
IE90875A IE41016B1 (en) 1974-04-24 1975-04-23 Multe-frequency signal receivers

Country Status (9)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2370386A1 (en) * 1976-11-05 1978-06-02 Constr Telephoniques MIXER FOR MULTIFREQUENCY SIGNAL RECEIVER
FR2485843B1 (en) * 1980-06-25 1986-11-07 Cit Alcatel DIGITAL FREQUENCY RECEIVER

Also Published As

Publication number Publication date
SE7504573L (en) 1975-10-27
NL7504828A (en) 1975-10-28
FR2269261B1 (en) 1976-12-17
IT1037582B (en) 1979-11-20
IE41016B1 (en) 1979-09-26
GB1501706A (en) 1978-02-22
BE827409A (en) 1975-10-01
FR2269261A1 (en) 1975-11-21
CH592994A5 (en) 1977-11-15
DE2517807A1 (en) 1975-11-06

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