JPS5738065B1 - - Google Patents

Info

Publication number
JPS5738065B1
JPS5738065B1 JP672472A JP672472A JPS5738065B1 JP S5738065 B1 JPS5738065 B1 JP S5738065B1 JP 672472 A JP672472 A JP 672472A JP 672472 A JP672472 A JP 672472A JP S5738065 B1 JPS5738065 B1 JP S5738065B1
Authority
JP
Japan
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.)
Pending
Application number
JP672472A
Other languages
Japanese (ja)
Other versions
JPS4715005A (
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 filed Critical
Publication of JPS4715005A publication Critical patent/JPS4715005A/ja
Publication of JPS5738065B1 publication Critical patent/JPS5738065B1/ja
Pending 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
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • 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)
JP672472A 1971-01-18 1972-01-18 Pending JPS5738065B1 ( )

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10732971A 1971-01-18 1971-01-18

Publications (2)

Publication Number Publication Date
JPS4715005A JPS4715005A ( ) 1972-08-17
JPS5738065B1 true JPS5738065B1 ( ) 1982-08-13

Family

ID=22316077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP672472A Pending JPS5738065B1 ( ) 1971-01-18 1972-01-18

Country Status (9)

Country Link
JP (1) JPS5738065B1 ( )
BE (1) BE778121A ( )
CA (3) CA952634A ( )
CH (1) CH544473A ( )
DE (1) DE2201764C3 ( )
ES (1) ES399297A1 ( )
FR (1) FR2122468B1 ( )
GB (1) GB1372754A ( )
IT (1) IT948859B ( )

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216669U ( ) * 1985-07-12 1987-01-31

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5076707U ( ) * 1973-11-14 1975-07-03
JPS5180105A ( ) * 1975-01-09 1976-07-13 Nakayo Telecommunications
JPS526005A (en) * 1975-07-04 1977-01-18 Oki Electric Ind Co Ltd Tone ringer receiving system
CH619332A5 (en) * 1976-02-02 1980-09-15 Intertel Ii Inc Signal-controlled system for optional blocking or unblocking of a transmission line, and use of the system
JPS5547019A (en) * 1978-09-27 1980-04-02 Sanden Corp Sound insulation device for electromagnetic clutch
JPS56501185A ( ) * 1979-08-20 1981-08-20
GB2121648B (en) * 1982-05-24 1986-12-03 Tad Avanti Ring detector and telephone line monitoring system for telephone answering unit
DE3535868C1 (en) * 1985-10-08 1987-05-21 Texas Instruments Deutschland Call signal recognition circuitry for telephone subscriber's appts. - has current sensor between rectifier and diode supplying detector sensing frequency
DE4212858A1 (de) * 1992-04-16 1993-10-21 Siemens Ag Tonrufschaltung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951910A (en) * 1958-01-14 1960-09-06 North Electric Co Substation signalling device
US3210479A (en) * 1962-08-30 1965-10-05 Automatic Elect Lab Voice-frequency selective signalling arrangement
FR1444467A (fr) * 1964-08-25 1966-07-01 Sits Soc It Telecom Siemens Ensemble d'organes formant une sonnerie à note variable, spécialement pour poste téléphonique d'abonné
US3508012A (en) * 1967-11-24 1970-04-21 Bell Telephone Labor Inc Compatible tone ringer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216669U ( ) * 1985-07-12 1987-01-31

Also Published As

Publication number Publication date
CH544473A (de) 1973-11-15
DE2201764A1 (de) 1972-08-03
CA952634A (en) 1974-08-06
ES399297A1 (es) 1975-05-01
DE2201764B2 (de) 1980-12-18
DE2201764C3 (de) 1981-10-08
CA939089A (en) 1973-12-25
BE778121A (fr) 1972-05-16
IT948859B (it) 1973-06-11
CA939090A (en) 1973-12-25
FR2122468A1 ( ) 1972-09-01
GB1372754A (en) 1974-11-06
JPS4715005A ( ) 1972-08-17
FR2122468B1 ( ) 1975-08-29

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