JPS54118712A - Call current supply circuit - Google Patents

Call current supply circuit

Info

Publication number
JPS54118712A
JPS54118712A JP2685078A JP2685078A JPS54118712A JP S54118712 A JPS54118712 A JP S54118712A JP 2685078 A JP2685078 A JP 2685078A JP 2685078 A JP2685078 A JP 2685078A JP S54118712 A JPS54118712 A JP S54118712A
Authority
JP
Japan
Prior art keywords
call current
resistor
call
circuit
increment
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
JP2685078A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6216059B2 (enrdf_load_stackoverflow
Inventor
Hiroo Iijima
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 JP2685078A priority Critical patent/JPS54118712A/ja
Publication of JPS54118712A publication Critical patent/JPS54118712A/ja
Publication of JPS6216059B2 publication Critical patent/JPS6216059B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP2685078A 1978-03-08 1978-03-08 Call current supply circuit Granted JPS54118712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2685078A JPS54118712A (en) 1978-03-08 1978-03-08 Call current supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2685078A JPS54118712A (en) 1978-03-08 1978-03-08 Call current supply circuit

Publications (2)

Publication Number Publication Date
JPS54118712A true JPS54118712A (en) 1979-09-14
JPS6216059B2 JPS6216059B2 (enrdf_load_stackoverflow) 1987-04-10

Family

ID=12204743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2685078A Granted JPS54118712A (en) 1978-03-08 1978-03-08 Call current supply circuit

Country Status (1)

Country Link
JP (1) JPS54118712A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122569A (en) * 1980-03-03 1981-09-26 Fujitsu Ltd Booster system
JPS59500544A (ja) * 1982-04-01 1984-03-29 テレフオンアクチ−ボラゲツト　エル　エム　エリクソン 直流磁化されるハイブリツド変成器に含まれる供給回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122569A (en) * 1980-03-03 1981-09-26 Fujitsu Ltd Booster system
JPS59500544A (ja) * 1982-04-01 1984-03-29 テレフオンアクチ−ボラゲツト　エル　エム　エリクソン 直流磁化されるハイブリツド変成器に含まれる供給回路

Also Published As

Publication number Publication date
JPS6216059B2 (enrdf_load_stackoverflow) 1987-04-10

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