FR2334250A1 - Circuit de commande de sonnerie telephonique - Google Patents

Circuit de commande de sonnerie telephonique

Info

Publication number
FR2334250A1
FR2334250A1 FR7636615A FR7636615A FR2334250A1 FR 2334250 A1 FR2334250 A1 FR 2334250A1 FR 7636615 A FR7636615 A FR 7636615A FR 7636615 A FR7636615 A FR 7636615A FR 2334250 A1 FR2334250 A1 FR 2334250A1
Authority
FR
France
Prior art keywords
control circuit
ring control
telephone ring
telephone
circuit
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
FR7636615A
Other languages
English (en)
Other versions
FR2334250B1 (fr
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of FR2334250A1 publication Critical patent/FR2334250A1/fr
Application granted granted Critical
Publication of FR2334250B1 publication Critical patent/FR2334250B1/fr
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
    • H04M19/04—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/06—Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange
FR7636615A 1975-12-05 1976-12-03 Circuit de commande de sonnerie telephonique Granted FR2334250A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/638,162 US4025729A (en) 1975-12-05 1975-12-05 Telephone ringing control circuits

Publications (2)

Publication Number Publication Date
FR2334250A1 true FR2334250A1 (fr) 1977-07-01
FR2334250B1 FR2334250B1 (fr) 1981-06-12

Family

ID=24558887

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7636615A Granted FR2334250A1 (fr) 1975-12-05 1976-12-03 Circuit de commande de sonnerie telephonique

Country Status (10)

Country Link
US (1) US4025729A (fr)
JP (1) JPS5269509A (fr)
AU (1) AU504330B2 (fr)
BE (1) BE848998A (fr)
CA (1) CA1063742A (fr)
ES (1) ES453914A1 (fr)
FR (1) FR2334250A1 (fr)
GB (1) GB1563130A (fr)
IT (1) IT1065438B (fr)
SE (1) SE7613197L (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239935A (en) * 1979-04-27 1980-12-16 Bell Telephone Laboratories, Incorporated Ringing generator
US4488006A (en) * 1982-07-01 1984-12-11 At&T Bell Laboratories Apparatus for controlling the application of telephone line power in a telephone set
JPS61179647A (ja) * 1984-12-29 1986-08-12 Fujitsu Ltd サ−ビス表示用ランプの点灯方法
US5027391A (en) * 1989-08-17 1991-06-25 Call Management Products, Inc. Call management system
JPH0773298B2 (ja) * 1989-09-14 1995-08-02 富士通株式会社 Ｉｓｄｎ端末への電源入力制御装置
JPH05176354A (ja) * 1991-12-20 1993-07-13 Fujitsu Ltd 加入者インタフェース回路
EP0746128B1 (fr) * 1995-05-30 2002-09-25 STMicroelectronics S.r.l. Circuit d'interface de ligne téléphonique avec impédance de terminaison pendant les pauses du signal d'appel
SE507739C2 (sv) * 1996-11-08 1998-07-06 Ericsson Telefon Ab L M Anordning vid en linjekrets för mätning av linjespänning

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3475561A (en) * 1965-09-29 1969-10-28 Superior Continental Corp Telephone carrier system having selfcontained independently attachable line tap units
US3471650A (en) * 1966-02-07 1969-10-07 Superior Continental Corp Telephone signaling system for rejecting spurious ringing signals
US3536852A (en) * 1969-01-23 1970-10-27 Lorain Prod Corp Telephone interruption switching circuitry
US3601538A (en) * 1969-02-24 1971-08-24 Stromberg Carlson Corp Carrier and voice-frequency telephone system
US3681621A (en) * 1969-09-17 1972-08-01 Okonite Co Adjustable frequency bipolar square wave generating circuit
US3628066A (en) * 1969-11-10 1971-12-14 Okonite Co Adjustable frequency bipolar square wave generating circuit
GB1367492A (en) * 1970-08-31 1974-09-18 Matsushita Electric Ind Co Ltd Remote-control type power source switching circuit
US3904833A (en) * 1973-06-04 1975-09-09 Superior Continental Corp Ringing generator circuit with capacitor storage
JPS5342562B2 (fr) * 1974-03-20 1978-11-13

Also Published As

Publication number Publication date
BE848998A (fr) 1977-04-01
US4025729A (en) 1977-05-24
JPS5269509A (en) 1977-06-09
FR2334250B1 (fr) 1981-06-12
AU504330B2 (en) 1979-10-11
AU2013676A (en) 1978-06-08
GB1563130A (en) 1980-03-19
SE7613197L (sv) 1977-06-06
CA1063742A (fr) 1979-10-02
ES453914A1 (es) 1977-11-16
IT1065438B (it) 1985-02-25
JPS5737268B2 (fr) 1982-08-09

Similar Documents

Publication Publication Date Title
DK89378A (da) Abonnentlinie/centralliniekreds
FR2332564A1 (fr) Systeme de commande numerique de machine
FR2305075A1 (fr) Systeme de controle telephonique
BE843052A (nl) Soupape de commande comportant un systeme de securite
DK476777A (da) Digitalt styrekredsloeb
FR2317832A1 (fr) Circuit de poste telephonique
SE7810700L (sv) Abonnentkrets
FR2347822A1 (fr) Circuit de commande de tonalite
NL7806549A (nl) Telefoonaanpassingsinrichting.
FR2306339A1 (fr) Commande de turbocompresseur
FR2312137A1 (fr) Systeme de commande numerique
FR2334250A1 (fr) Circuit de commande de sonnerie telephonique
FR2298136A1 (fr) Circuit de preparation d'un systeme de commande numerique
FR2344074A1 (fr) Circuit de commande numerique de securite
FR2310028A1 (fr) Circuit de commande a
FR2336569A1 (fr) Dispositif de commande
FR2331907A1 (fr) Circuit de commande pour convertisseur
FR2381424B1 (fr) Pupitre de commande telephonique
SE7606718L (sv) Omkopplingsanordning for en automatisk telefonkommunikatiosnvexel
AU4082978A (en) Telephone party line control circuit
BE838516A (fr) Circuit de commande de gain pour un photomultiplicateur
SE7709758L (sv) Telefonlinjekrets
AT377406B (de) Dezentral gesteuerte fernsprechanlage
FR2323261A1 (fr) Circuit de commande de branchement
FR2275930A1 (fr) Circuit de commande de gain