JPS5994961A - 通話電流供給方式 - Google Patents

通話電流供給方式

Info

Publication number
JPS5994961A
JPS5994961A JP57205189A JP20518982A JPS5994961A JP S5994961 A JPS5994961 A JP S5994961A JP 57205189 A JP57205189 A JP 57205189A JP 20518982 A JP20518982 A JP 20518982A JP S5994961 A JPS5994961 A JP S5994961A
Authority
JP
Japan
Prior art keywords
resistance
circuit
switch
current
terminal
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
JP57205189A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0339428B2 (enrdf_load_stackoverflow
Inventor
Koichi Hagishima
萩島　功一
Takeo Koinuma
濃沼　健夫
Kazuo Hamasato
和雄 浜里
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 JP57205189A priority Critical patent/JPS5994961A/ja
Publication of JPS5994961A publication Critical patent/JPS5994961A/ja
Publication of JPH0339428B2 publication Critical patent/JPH0339428B2/ja
Granted 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
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP57205189A 1982-11-22 1982-11-22 通話電流供給方式 Granted JPS5994961A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57205189A JPS5994961A (ja) 1982-11-22 1982-11-22 通話電流供給方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57205189A JPS5994961A (ja) 1982-11-22 1982-11-22 通話電流供給方式

Publications (2)

Publication Number Publication Date
JPS5994961A true JPS5994961A (ja) 1984-05-31
JPH0339428B2 JPH0339428B2 (enrdf_load_stackoverflow) 1991-06-13

Family

ID=16502874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57205189A Granted JPS5994961A (ja) 1982-11-22 1982-11-22 通話電流供給方式

Country Status (1)

Country Link
JP (1) JPS5994961A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01215174A (ja) * 1988-02-23 1989-08-29 Nec Corp ハウラー信号送出方式

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01215174A (ja) * 1988-02-23 1989-08-29 Nec Corp ハウラー信号送出方式

Also Published As

Publication number Publication date
JPH0339428B2 (enrdf_load_stackoverflow) 1991-06-13

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