JPS59178054A - 加入者線延長用四線式電話装置 - Google Patents

加入者線延長用四線式電話装置

Info

Publication number
JPS59178054A
JPS59178054A JP5198783A JP5198783A JPS59178054A JP S59178054 A JPS59178054 A JP S59178054A JP 5198783 A JP5198783 A JP 5198783A JP 5198783 A JP5198783 A JP 5198783A JP S59178054 A JPS59178054 A JP S59178054A
Authority
JP
Japan
Prior art keywords
circuit
wire
line
subscriber
telephone set
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.)
Granted
Application number
JP5198783A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0347794B2 (en, 2012
Inventor
Masashige Sone
曽根　正列
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5198783A priority Critical patent/JPS59178054A/ja
Publication of JPS59178054A publication Critical patent/JPS59178054A/ja
Publication of JPH0347794B2 publication Critical patent/JPH0347794B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP5198783A 1983-03-28 1983-03-28 加入者線延長用四線式電話装置 Granted JPS59178054A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5198783A JPS59178054A (ja) 1983-03-28 1983-03-28 加入者線延長用四線式電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5198783A JPS59178054A (ja) 1983-03-28 1983-03-28 加入者線延長用四線式電話装置

Publications (2)

Publication Number Publication Date
JPS59178054A true JPS59178054A (ja) 1984-10-09
JPH0347794B2 JPH0347794B2 (en, 2012) 1991-07-22

Family

ID=12902200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5198783A Granted JPS59178054A (ja) 1983-03-28 1983-03-28 加入者線延長用四線式電話装置

Country Status (1)

Country Link
JP (1) JPS59178054A (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0884601A (ja) * 1994-09-16 1996-04-02 Rikiou:Kk 地下たび
WO2000033543A1 (en) * 1998-11-30 2000-06-08 Qualcomm Incorporated Audio interface for satellite user terminals

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5366105U (en, 2012) * 1976-11-08 1978-06-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5366105U (en, 2012) * 1976-11-08 1978-06-03

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0884601A (ja) * 1994-09-16 1996-04-02 Rikiou:Kk 地下たび
WO2000033543A1 (en) * 1998-11-30 2000-06-08 Qualcomm Incorporated Audio interface for satellite user terminals
US6731748B1 (en) 1998-11-30 2004-05-04 Qualcomm Incorporated Audio interface for satellite user terminals

Also Published As

Publication number Publication date
JPH0347794B2 (en, 2012) 1991-07-22

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