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 versions
JPS4715005A (ja
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
JP672472A 1971-01-18 1972-01-18 Pending JPS5738065B1 (ja)

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 (ja) 1972-08-17
JPS5738065B1 true JPS5738065B1 (ja) 1982-08-13

Family

ID=22316077

Family Applications (1)

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

Country Status (9)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216669U (ja) * 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 (ja) * 1973-11-14 1975-07-03
JPS5180105A (ja) * 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
WO1981000657A1 (en) * 1979-08-20 1981-03-05 Western Electric Co Electronic tone ringer
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 (ja) * 1985-07-12 1987-01-31

Also Published As

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

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