JPS6317389B2 - - Google Patents

Info

Publication number
JPS6317389B2
JPS6317389B2 JP20519082A JP20519082A JPS6317389B2 JP S6317389 B2 JPS6317389 B2 JP S6317389B2 JP 20519082 A JP20519082 A JP 20519082A JP 20519082 A JP20519082 A JP 20519082A JP S6317389 B2 JPS6317389 B2 JP S6317389B2
Authority
JP
Japan
Prior art keywords
voltage
power supply
polarity
telephone
switch
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.)
Expired
Application number
JP20519082A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5994959A (ja
Inventor
Koichi Hagishima
Takeo Koinuma
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP57205190A priority Critical patent/JPS5994959A/ja
Publication of JPS5994959A publication Critical patent/JPS5994959A/ja
Publication of JPS6317389B2 publication Critical patent/JPS6317389B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP57205190A 1982-11-22 1982-11-22 加入者線電圧極性反転方式 Granted JPS5994959A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57205190A JPS5994959A (ja) 1982-11-22 1982-11-22 加入者線電圧極性反転方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57205190A JPS5994959A (ja) 1982-11-22 1982-11-22 加入者線電圧極性反転方式

Publications (2)

Publication Number Publication Date
JPS5994959A JPS5994959A (ja) 1984-05-31
JPS6317389B2 true JPS6317389B2 (fr) 1988-04-13

Family

ID=16502890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57205190A Granted JPS5994959A (ja) 1982-11-22 1982-11-22 加入者線電圧極性反転方式

Country Status (1)

Country Link
JP (1) JPS5994959A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2610048B2 (ja) * 1989-07-31 1997-05-14 シャープ株式会社 端末用網制御装置
TW358283B (en) 1996-06-26 1999-05-11 Oki Electric Ind Co Ltd Remote testing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5596755A (en) * 1979-01-17 1980-07-23 Nec Corp Terminal starting system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5596755A (en) * 1979-01-17 1980-07-23 Nec Corp Terminal starting system

Also Published As

Publication number Publication date
JPS5994959A (ja) 1984-05-31

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