BE611694A - Circuit de ligne d'abonné à sonnerie locale - Google Patents
Circuit de ligne d'abonné à sonnerie localeInfo
- Publication number
- BE611694A BE611694A BE611694A BE611694A BE611694A BE 611694 A BE611694 A BE 611694A BE 611694 A BE611694 A BE 611694A BE 611694 A BE611694 A BE 611694A BE 611694 A BE611694 A BE 611694A
- Authority
- BE
- Belgium
- Prior art keywords
- subscriber line
- line circuit
- local ringing
- ringing subscriber
- local
- Prior art date
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
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78147A US3059058A (en) | 1960-12-23 | 1960-12-23 | Subscriber line circuit with local ringing |
Publications (1)
Publication Number | Publication Date |
---|---|
BE611694A true BE611694A (fr) | 1962-04-16 |
Family
ID=22142214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE611694A BE611694A (fr) | 1960-12-23 | 1961-12-18 | Circuit de ligne d'abonné à sonnerie locale |
Country Status (7)
Country | Link |
---|---|
US (1) | US3059058A ( ) |
JP (1) | JPS403575B1 ( ) |
BE (1) | BE611694A ( ) |
DE (1) | DE1202349B ( ) |
FR (1) | FR1311553A ( ) |
GB (1) | GB1002571A ( ) |
NL (1) | NL272337A ( ) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL286845A ( ) * | 1961-03-03 | |||
US3247327A (en) * | 1963-01-17 | 1966-04-19 | Northern Electric Co | Telephone signalling circuits |
US3235669A (en) * | 1963-01-17 | 1966-02-15 | Northern Electric Co | Telephone signalling circuits |
US3312787A (en) * | 1963-10-17 | 1967-04-04 | Stromberg Carlson Corp | Signaling system |
US3443033A (en) * | 1963-10-31 | 1969-05-06 | Bell Telephone Labor Inc | Ringing arrangement for time division telephone systems |
US3671678A (en) * | 1970-12-22 | 1972-06-20 | Stromberg Carlson Corp | Ringing control circuit |
US3978292A (en) * | 1974-11-07 | 1976-08-31 | Bell Telephone Laboratories, Incorporated | Ringing control circuitry with shared ringing loop current detector |
US3978293A (en) * | 1974-11-07 | 1976-08-31 | Bell Telephone Laboratories, Incorporated | Ringing control circuitry with shared ringing loop current detector |
FR2296324A1 (fr) * | 1974-12-27 | 1976-07-23 | Ericsson Telefon Ab L M | Dispositif d'appel perfectionne pour installations de telephonie |
TW201524949A (zh) | 2013-11-15 | 2015-07-01 | Invista Tech Sarl | 過氧縮醛中間物之轉換 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2152475A (en) * | 1938-03-29 | 1939-03-28 | Bell Telephone Labor Inc | Signaling system |
BE515605A ( ) * | 1952-11-18 |
-
0
- NL NL272337D patent/NL272337A/xx unknown
-
1960
- 1960-12-23 US US78147A patent/US3059058A/en not_active Expired - Lifetime
-
1961
- 1961-12-14 GB GB44750/61A patent/GB1002571A/en not_active Expired
- 1961-12-18 BE BE611694A patent/BE611694A/fr unknown
- 1961-12-22 DE DEW31344A patent/DE1202349B/de active Pending
- 1961-12-22 FR FR882947A patent/FR1311553A/fr not_active Expired
- 1961-12-22 JP JP4642461A patent/JPS403575B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1002571A (en) | 1965-08-25 |
US3059058A (en) | 1962-10-16 |
JPS403575B1 ( ) | 1965-02-25 |
NL272337A ( ) | |
DE1202349B (de) | 1965-10-07 |
FR1311553A (fr) | 1962-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE611694A (fr) | Circuit de ligne d'abonné à sonnerie locale | |
CH400251A (de) | Elektronische Telephonschaltanlage | |
FR1283074A (fr) | Installation téléphonique d'abonné | |
BE611594A (fr) | Circuit de sélection d'itinéraires dans des réseaux téléphoniques | |
FR1306030A (fr) | Circuit de signalisation téléphonique | |
FR1266507A (fr) | Dispositif d'interpolation | |
FR1262722A (fr) | Mécanisme d'accrochage de combiné téléphonique | |
CH387788A (fr) | Circuit à caractéristique signal-entrant/courant-sortant linéaire | |
CH394298A (de) | Ringschaltung | |
FR1415042A (fr) | Circuit de ligne téléphonique | |
FR1317059A (fr) | Disjoncteur d'installation | |
FR77549E (fr) | Dispositif d'amorçage à circuit indépendant | |
FR1254833A (fr) | Ligne à mouche | |
FR1279819A (fr) | Combiné téléphonique d'essai | |
FR1305734A (fr) | Poste téléphonique à signalisation automatique | |
BE598979A (fr) | Circuit d'addition | |
FR1341994A (fr) | Convertisseur à interrupteurs statiques | |
FR1290441A (fr) | Circuit à caractéristique signal-entrant/courant-signal-sortant linéaire | |
FR1342936A (fr) | Circuit statique de commutation | |
FR1311531A (fr) | Circuit de sélection d'itinéraires dans des réseaux téléphoniques | |
FR1306559A (fr) | Circuits statiques de commutation | |
FR1333269A (fr) | Pendulette à sonnerie | |
FR1280622A (fr) | Central téléphonique à sélecteurs-coordinateurs | |
FR1281529A (fr) | Réseau téléphonique à enregistrement des appels | |
FR1401576A (fr) | Circuit de ligne téléphonique |