JPS52107708A - Method and device for translating multiple frequency signal - Google Patents

Method and device for translating multiple frequency signal

Info

Publication number
JPS52107708A
JPS52107708A JP2092077A JP2092077A JPS52107708A JP S52107708 A JPS52107708 A JP S52107708A JP 2092077 A JP2092077 A JP 2092077A JP 2092077 A JP2092077 A JP 2092077A JP S52107708 A JPS52107708 A JP S52107708A
Authority
JP
Japan
Prior art keywords
frequency signal
multiple frequency
translating multiple
translating
signal
Prior art date
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.)
Pending
Application number
JP2092077A
Other languages
English (en)
Japanese (ja)
Inventor
Edouin Ritsutenhausu Denisu
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of JPS52107708A publication Critical patent/JPS52107708A/ja
Pending 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
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stereo-Broadcasting Methods (AREA)
JP2092077A 1976-03-03 1977-03-01 Method and device for translating multiple frequency signal Pending JPS52107708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA247,035A CA1031086A (en) 1976-03-03 1976-03-03 Method and apparatus for translating multiple frequency signalling

Publications (1)

Publication Number Publication Date
JPS52107708A true JPS52107708A (en) 1977-09-09

Family

ID=4105372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2092077A Pending JPS52107708A (en) 1976-03-03 1977-03-01 Method and device for translating multiple frequency signal

Country Status (11)

Country Link
JP (1) JPS52107708A (sv)
AU (1) AU508271B2 (sv)
BE (1) BE852056A (sv)
CA (1) CA1031086A (sv)
DE (1) DE2709370A1 (sv)
DK (1) DK88877A (sv)
FR (1) FR2343377A1 (sv)
GB (1) GB1532103A (sv)
NL (1) NL186057C (sv)
NO (1) NO770696L (sv)
SE (1) SE424129B (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5564464A (en) * 1978-11-10 1980-05-15 Hitachi Ltd Signal receiver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629907A1 (de) * 1986-09-03 1988-03-10 Standard Elektrik Lorenz Ag Signalisierungsempfaenger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710031A (en) * 1970-12-23 1973-01-09 Itt Multi frequency receiver
FR2127450A5 (sv) * 1971-03-03 1972-10-13 Ibm France
DE2116635C3 (de) * 1971-04-05 1978-10-05 Ibm Deutschland Gmbh, 7000 Stuttgart Verfahren zur digitalen Decodierung frequenzcodierter Signale und Schaltungsanordnung zur Durchführung des Verfahrens
CA976675A (en) * 1972-10-16 1975-10-21 Microsystems International Limited Dual tone receiver
US3914557A (en) * 1973-04-11 1975-10-21 Bell Telephone Labor Inc Multifrequency tone detecting arrangement
US3936801A (en) * 1974-09-12 1976-02-03 Bell Telephone Laboratories, Incorporated Multifrequency signal receiver timing circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5564464A (en) * 1978-11-10 1980-05-15 Hitachi Ltd Signal receiver
JPS5831140B2 (ja) * 1978-11-10 1983-07-04 株式会社日立製作所 信号受信器

Also Published As

Publication number Publication date
NL7702219A (nl) 1977-09-06
FR2343377A1 (fr) 1977-09-30
DE2709370A1 (de) 1977-09-08
FR2343377B1 (sv) 1983-08-12
CA1031086A (en) 1978-05-09
SE7702418L (sv) 1977-09-04
BE852056A (fr) 1977-07-01
NL186057B (nl) 1990-04-02
GB1532103A (en) 1978-11-15
NO770696L (no) 1977-09-06
SE424129B (sv) 1982-06-28
NL186057C (nl) 1990-09-03
AU508271B2 (en) 1980-03-13
AU2244877A (en) 1978-08-24
DK88877A (da) 1977-09-04

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