NL7504828A - Ontvanger voor signalen met meerdere frekwenties. - Google Patents

Ontvanger voor signalen met meerdere frekwenties.

Info

Publication number
NL7504828A
NL7504828A NL7504828A NL7504828A NL7504828A NL 7504828 A NL7504828 A NL 7504828A NL 7504828 A NL7504828 A NL 7504828A NL 7504828 A NL7504828 A NL 7504828A NL 7504828 A NL7504828 A NL 7504828A
Authority
NL
Netherlands
Prior art keywords
receiver
signals
multiple frequencies
frequencies
Prior art date
Application number
NL7504828A
Other languages
English (en)
Dutch (nl)
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 NL7504828A publication Critical patent/NL7504828A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
NL7504828A 1974-04-24 1975-04-23 Ontvanger voor signalen met meerdere frekwenties. NL7504828A (nl)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL7504828A true NL7504828A (nl) 1975-10-28

Family

ID=9138073

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7504828A NL7504828A (nl) 1974-04-24 1975-04-23 Ontvanger voor signalen met meerdere frekwenties.

Country Status (9)

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

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
CH592994A5 (xx) 1977-11-15
DE2517807A1 (de) 1975-11-06
BE827409A (fr) 1975-10-01
SE7504573L (sv) 1975-10-27
IT1037582B (it) 1979-11-20
IE41016L (en) 1975-10-24
FR2269261B1 (xx) 1976-12-17
GB1501706A (en) 1978-02-22
IE41016B1 (en) 1979-09-26
FR2269261A1 (xx) 1975-11-21

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BATV A request for search has been withdrawn
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BV The patent application has lapsed
BC A request for examination has been filed
A85 Still pending on 85-01-01