JPS5328317A - Control system of subscriber's calling signal - Google Patents

Control system of subscriber's calling signal

Info

Publication number
JPS5328317A
JPS5328317A JP10266776A JP10266776A JPS5328317A JP S5328317 A JPS5328317 A JP S5328317A JP 10266776 A JP10266776 A JP 10266776A JP 10266776 A JP10266776 A JP 10266776A JP S5328317 A JPS5328317 A JP S5328317A
Authority
JP
Japan
Prior art keywords
calling signal
subscriber
control system
started
stopped
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
JP10266776A
Other languages
English (en)
Japanese (ja)
Other versions
JPS576741B2 (en]
Inventor
Kimifumi Kojima
Shige Miyoshi
Takuji Mukaemachi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10266776A priority Critical patent/JPS5328317A/ja
Priority to US05/828,671 priority patent/US4145577A/en
Publication of JPS5328317A publication Critical patent/JPS5328317A/ja
Publication of JPS576741B2 publication Critical patent/JPS576741B2/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
    • H04M19/026—Arrangements for interrupting the ringing current

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP10266776A 1976-08-30 1976-08-30 Control system of subscriber's calling signal Granted JPS5328317A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10266776A JPS5328317A (en) 1976-08-30 1976-08-30 Control system of subscriber's calling signal
US05/828,671 US4145577A (en) 1976-08-30 1977-08-29 Ringing control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10266776A JPS5328317A (en) 1976-08-30 1976-08-30 Control system of subscriber's calling signal

Publications (2)

Publication Number Publication Date
JPS5328317A true JPS5328317A (en) 1978-03-16
JPS576741B2 JPS576741B2 (en]) 1982-02-06

Family

ID=14333573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10266776A Granted JPS5328317A (en) 1976-08-30 1976-08-30 Control system of subscriber's calling signal

Country Status (2)

Country Link
US (1) US4145577A (en])
JP (1) JPS5328317A (en])

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154205A (en) * 1978-05-26 1979-12-05 Toshiba Corp Transmission system of ringing signal
JPS56826A (en) * 1979-05-09 1981-01-07 Gen Electric Manufacture of polyetheramide acid and imide
JPS57162862A (en) * 1981-03-31 1982-10-06 Fujitsu Ltd Callout signal control system

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4273964A (en) * 1978-09-21 1981-06-16 Motek Szpindel Ring and tone plant
CA1114536A (en) * 1978-12-11 1981-12-15 William B. Kiss Ringing generator
US4298774A (en) * 1979-05-02 1981-11-03 Gte Automatic Electric Labs Inc. Call waiting signal arrangement
JPS56165451A (en) * 1980-05-24 1981-12-19 Oki Electric Ind Co Ltd Control circuit of call signal
US4590331A (en) * 1984-03-13 1986-05-20 Security Systems Internationale, Inc. Hostage negotiation telephone system
SE459138B (sv) * 1987-10-08 1989-06-05 Ericsson Telefon Ab L M Anordning i ett telekommunikationssystem vid inkoppling och urkoppling av en ringsignal
JPH0231846U (en]) * 1988-08-19 1990-02-28
JP4192856B2 (ja) * 2004-07-07 2008-12-10 ブラザー工業株式会社 通信装置，回線閉結方法およびプログラム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551604A (en) * 1969-02-26 1970-12-29 Bell Telephone Labor Inc Immediate ringing in a step-by-step telephone system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154205A (en) * 1978-05-26 1979-12-05 Toshiba Corp Transmission system of ringing signal
JPS56826A (en) * 1979-05-09 1981-01-07 Gen Electric Manufacture of polyetheramide acid and imide
JPS57162862A (en) * 1981-03-31 1982-10-06 Fujitsu Ltd Callout signal control system

Also Published As

Publication number Publication date
JPS576741B2 (en]) 1982-02-06
US4145577A (en) 1979-03-20

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