AU471035B2 - Ring-trip circuits - Google Patents

Ring-trip circuits

Info

Publication number
AU471035B2
AU471035B2 AU58697/73A AU5869773A AU471035B2 AU 471035 B2 AU471035 B2 AU 471035B2 AU 58697/73 A AU58697/73 A AU 58697/73A AU 5869773 A AU5869773 A AU 5869773A AU 471035 B2 AU471035 B2 AU 471035B2
Authority
AU
Australia
Prior art keywords
ring
trip circuits
trip
circuits
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
AU58697/73A
Other versions
AU5869773A (en
Inventor
Svach Brian Grundy Peter
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.)
Plessey Overseas Ltd
Original Assignee
Plessey Overseas 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 Plessey Overseas Ltd filed Critical Plessey Overseas Ltd
Publication of AU5869773A publication Critical patent/AU5869773A/en
Application granted granted Critical
Publication of AU471035B2 publication Critical patent/AU471035B2/en
Expired 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
AU58697/73A 1972-09-16 1973-07-30 Ring-trip circuits Expired AU471035B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB43040/72 1972-09-16
GB4304072A GB1396768A (en) 1972-09-16 1972-09-16 Ringtrip circuits

Publications (2)

Publication Number Publication Date
AU5869773A AU5869773A (en) 1975-01-30
AU471035B2 true AU471035B2 (en) 1976-04-08

Family

ID=10427065

Family Applications (1)

Application Number Title Priority Date Filing Date
AU58697/73A Expired AU471035B2 (en) 1972-09-16 1973-07-30 Ring-trip circuits

Country Status (3)

Country Link
AU (1) AU471035B2 (en)
GB (1) GB1396768A (en)
ZA (1) ZA734174B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101262536B (en) * 2007-03-07 2012-01-25 北京佳讯飞鸿电气股份有限公司 A realization method and device for ring current and magnetic ring signal

Also Published As

Publication number Publication date
ZA734174B (en) 1974-05-29
AU5869773A (en) 1975-01-30
GB1396768A (en) 1975-06-04

Similar Documents

Publication Publication Date Title
CA992341A (en) Jewel-studded components
CA1000811A (en) Current-canceling circuit
CA982715A (en) Telephone subset circuit
CA981591A (en) Muting circuit
CA977039A (en) Transistor circuit
AU6397973A (en) Circuit
CA986025A (en) Muting circuit
AU476375B2 (en) Switching circuit
CA997006A (en) Line output circuits
CA1002606A (en) Muting circuit
CA1001786A (en) Ring-trip circuit
CA998746A (en) Digital circuit
CA1006927A (en) Amplification circuit
AU471035B2 (en) Ring-trip circuits
CA978290A (en) Multiplexing circuit
AU491294B1 (en) Loudspeaker arrangement
CA891692A (en) Constant-current-output circuit arrangement
CA898399A (en) Clamping circuits
AU476270B2 (en) Printed circuits
CA896991A (en) Printed circuits
CA891140A (en) Integrating circuit arrangements
CA898415A (en) Integrated circuit
CA897829A (en) Integrated circuit
AU5791273A (en) Telephones
CA909367A (en) Amplifier circuits