JPS55137788A - Digital signal receiver for receiving pcm voice - Google Patents

Digital signal receiver for receiving pcm voice

Info

Publication number
JPS55137788A
JPS55137788A JP2152180A JP2152180A JPS55137788A JP S55137788 A JPS55137788 A JP S55137788A JP 2152180 A JP2152180 A JP 2152180A JP 2152180 A JP2152180 A JP 2152180A JP S55137788 A JPS55137788 A JP S55137788A
Authority
JP
Japan
Prior art keywords
digital signal
signal receiver
pcm voice
receiving pcm
receiving
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
JP2152180A
Other languages
Japanese (ja)
Inventor
Koonnsufuetoku Sorin
Kei Fuudo Jiyatsukiiren
Jiyon Doiru Danieru
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 JPS55137788A publication Critical patent/JPS55137788A/en
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
    • H04Q1/4575—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 which are transmitted in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
JP2152180A 1979-02-22 1980-02-22 Digital signal receiver for receiving pcm voice Pending JPS55137788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA322,112A CA1111531A (en) 1979-02-22 1979-02-22 Digital signalling receiver for receiving pcm tones

Publications (1)

Publication Number Publication Date
JPS55137788A true JPS55137788A (en) 1980-10-27

Family

ID=4113607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2152180A Pending JPS55137788A (en) 1979-02-22 1980-02-22 Digital signal receiver for receiving pcm voice

Country Status (9)

Country Link
JP (1) JPS55137788A (en)
AT (1) AT386312B (en)
CA (1) CA1111531A (en)
DE (1) DE3005740A1 (en)
FR (1) FR2450017A1 (en)
GB (1) GB2044039B (en)
IT (1) IT1140634B (en)
NL (1) NL8001026A (en)
SE (1) SE452388B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779751A (en) * 1980-11-05 1982-05-19 Nec Corp Signal receiver
JPH07171782A (en) * 1991-07-16 1995-07-11 Haruo Konagai Vacuum suction device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504754A1 (en) * 1981-04-27 1982-10-29 Thomson Csf Mat Tel Sequencer for ROMs in digital waveform generator - uses program in master ROM to control operational sequences from slave ROMs via clocked bistable multivibrator circuits
US4519072A (en) * 1982-11-10 1985-05-21 Rockwell International Corporation Answer supervision system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51112218A (en) * 1975-03-28 1976-10-04 Hitachi Ltd Multifrequency signal receiver
JPS5244106A (en) * 1975-10-06 1977-04-06 Hitachi Ltd Multi-frequency signal receiver

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1603175A (en) * 1968-07-30 1971-03-22
US3863030A (en) * 1972-06-01 1975-01-28 Gte Automatic Electric Lab Inc Pcm tone receiver using digital spectrum analysis
IT1072242B (en) * 1976-12-17 1985-04-10 Cselt Centro Studi Lab Telecom PROCEDURE AND DEVICE FOR THE RECOGNITION OF TELEPHONE SIGNALS IN MULTIFREQUENCY CODE CONVERTED IN NUMERICAL FORM

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51112218A (en) * 1975-03-28 1976-10-04 Hitachi Ltd Multifrequency signal receiver
JPS5244106A (en) * 1975-10-06 1977-04-06 Hitachi Ltd Multi-frequency signal receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5779751A (en) * 1980-11-05 1982-05-19 Nec Corp Signal receiver
JPH07171782A (en) * 1991-07-16 1995-07-11 Haruo Konagai Vacuum suction device

Also Published As

Publication number Publication date
DE3005740A1 (en) 1980-09-04
IT1140634B (en) 1986-10-01
AT386312B (en) 1988-08-10
FR2450017A1 (en) 1980-09-19
SE452388B (en) 1987-11-23
CA1111531A (en) 1981-10-27
IT8019986A1 (en) 1981-08-18
GB2044039A (en) 1980-10-08
SE8001315L (en) 1980-08-23
GB2044039B (en) 1983-05-11
IT8019986A0 (en) 1980-02-18
FR2450017B1 (en) 1984-05-11
NL8001026A (en) 1980-08-26
ATA96280A (en) 1987-12-15

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