JPS54114913A - Telephone trunk or subscriber line carrier system - Google Patents

Telephone trunk or subscriber line carrier system

Info

Publication number
JPS54114913A
JPS54114913A JP1508579A JP1508579A JPS54114913A JP S54114913 A JPS54114913 A JP S54114913A JP 1508579 A JP1508579 A JP 1508579A JP 1508579 A JP1508579 A JP 1508579A JP S54114913 A JPS54114913 A JP S54114913A
Authority
JP
Japan
Prior art keywords
subscriber line
carrier system
line carrier
telephone trunk
trunk
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
JP1508579A
Other languages
Japanese (ja)
Inventor
Jiyon Jingeru Maikeru
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of JPS54114913A publication Critical patent/JPS54114913A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/002—Control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
JP1508579A 1978-02-14 1979-02-14 Telephone trunk or subscriber line carrier system Pending JPS54114913A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5812/78A GB1596943A (en) 1978-02-14 1978-02-14 Level control of digital signals

Publications (1)

Publication Number Publication Date
JPS54114913A true JPS54114913A (en) 1979-09-07

Family

ID=9803077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1508579A Pending JPS54114913A (en) 1978-02-14 1979-02-14 Telephone trunk or subscriber line carrier system

Country Status (13)

Country Link
JP (1) JPS54114913A (en)
AU (1) AU529904B2 (en)
BE (1) BE874142A (en)
BR (1) BR7900884A (en)
DE (1) DE2905080A1 (en)
DK (1) DK58979A (en)
ES (1) ES477655A1 (en)
FR (1) FR2417221A1 (en)
GB (1) GB1596943A (en)
MX (1) MX145798A (en)
NL (1) NL7900757A (en)
NO (1) NO148240C (en)
SE (1) SE7901179L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6461680A (en) * 1987-09-01 1989-03-08 Takamisawa Cybernetics Small-sized seismometer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272648A (en) * 1979-11-28 1981-06-09 International Telephone And Telegraph Corporation Gain control apparatus for digital telephone line circuits
DE3107046A1 (en) * 1981-02-25 1982-09-09 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR CONNECTING TRANSMITTERS SIGNALING ANALOG SIGNALS TO RECEIVING DEVICES RECEIVING ANALOG SIGNALS VIA A TIME-MULTIPLEX DATA-SWITCHING SYSTEM
GB8322440D0 (en) * 1983-08-19 1983-09-21 Gen Electric Co Plc Frequency division multiplex transmission equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2247858B1 (en) * 1973-09-27 1976-06-18 Ibm France

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6461680A (en) * 1987-09-01 1989-03-08 Takamisawa Cybernetics Small-sized seismometer

Also Published As

Publication number Publication date
NL7900757A (en) 1979-08-16
ES477655A1 (en) 1979-10-16
DK58979A (en) 1979-08-15
BR7900884A (en) 1979-09-11
NO790461L (en) 1979-08-15
NO148240B (en) 1983-05-24
AU529904B2 (en) 1983-06-23
DE2905080A1 (en) 1979-09-20
GB1596943A (en) 1981-09-03
BE874142A (en) 1979-08-14
AU4406979A (en) 1979-08-23
NO148240C (en) 1983-08-31
SE7901179L (en) 1979-08-15
MX145798A (en) 1982-04-02
FR2417221A1 (en) 1979-09-07

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