IT1015222B - Perfezionamento nei circuiti elet tronici di commutazione - Google Patents
Perfezionamento nei circuiti elet tronici di commutazioneInfo
- Publication number
- IT1015222B IT1015222B IT24191/74A IT2419174A IT1015222B IT 1015222 B IT1015222 B IT 1015222B IT 24191/74 A IT24191/74 A IT 24191/74A IT 2419174 A IT2419174 A IT 2419174A IT 1015222 B IT1015222 B IT 1015222B
- Authority
- IT
- Italy
- Prior art keywords
- improvement
- switching circuits
- electronic switching
- electronic
- circuits
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Electronic Switches (AREA)
- Meter Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3161273A GB1404078A (en) | 1973-07-03 | 1973-07-03 | Telephone outpulser circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1015222B true IT1015222B (it) | 1977-05-10 |
Family
ID=10325756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT24191/74A IT1015222B (it) | 1973-07-03 | 1974-06-20 | Perfezionamento nei circuiti elet tronici di commutazione |
Country Status (10)
| Country | Link |
|---|---|
| AR (1) | AR203751A1 (pt) |
| BE (1) | BE817196R (pt) |
| BR (1) | BR7405356A (pt) |
| DE (1) | DE2430740A1 (pt) |
| ES (1) | ES427877A1 (pt) |
| FR (1) | FR2236322B2 (pt) |
| GB (1) | GB1404078A (pt) |
| HK (1) | HK28877A (pt) |
| IT (1) | IT1015222B (pt) |
| ZA (1) | ZA742857B (pt) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3488450A (en) * | 1966-12-02 | 1970-01-06 | American Telephone & Telegraph | Sender for transmitting trains of pulses |
-
1973
- 1973-07-03 GB GB3161273A patent/GB1404078A/en not_active Expired
-
1974
- 1974-05-06 ZA ZA00742857A patent/ZA742857B/xx unknown
- 1974-06-20 IT IT24191/74A patent/IT1015222B/it active
- 1974-06-26 DE DE2430740A patent/DE2430740A1/de active Pending
- 1974-06-28 BR BR5356/74A patent/BR7405356A/pt unknown
- 1974-07-02 ES ES427877A patent/ES427877A1/es not_active Expired
- 1974-07-02 FR FR7422934A patent/FR2236322B2/fr not_active Expired
- 1974-07-03 BE BE2053727A patent/BE817196R/xx not_active IP Right Cessation
- 1974-07-04 AR AR254529A patent/AR203751A1/es active
-
1977
- 1977-06-09 HK HK288/77A patent/HK28877A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU6914474A (en) | 1975-11-20 |
| HK28877A (en) | 1977-06-17 |
| BE817196R (fr) | 1975-01-03 |
| AR203751A1 (es) | 1975-10-15 |
| FR2236322A2 (pt) | 1975-01-31 |
| ZA742857B (en) | 1975-03-26 |
| DE2430740A1 (de) | 1975-01-23 |
| ES427877A1 (es) | 1976-11-16 |
| GB1404078A (en) | 1975-08-28 |
| BR7405356A (pt) | 1976-08-31 |
| FR2236322B2 (pt) | 1978-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BE812507A (fr) | Agencements de circuits | |
| IT945378B (it) | Perfezionamento nei connettori per circuiti stampati | |
| SE400132B (sv) | Referensspenningskrets | |
| IT1023751B (it) | Resistore fusibile per circuiti elettrici di ridotte dimensioni | |
| IT992796B (it) | Perfezionamento nei circuiti per apparecchi telefonici di utente | |
| CH525519A (de) | Funktionsbildende Schaltungsanordnung | |
| MY7700062A (en) | Current dividing circuits | |
| AT329678B (de) | Schaltungsanordnung bei wechselrichtern | |
| IT1017830B (it) | Dispositivo di connessione per circuiti elettrici | |
| IT969458B (it) | Perfezionamento nei circuiti rego latori di corrente | |
| BE777472A (fr) | Circuit electronique | |
| CH496364A (de) | Symmetrische Mehrphasenschaltung | |
| AT319336B (de) | Integrierte Schaltung | |
| BE817663A (fr) | Circuits integres | |
| IT1008690B (it) | Perfezionamento nei dispositivi di protezione per circuiti elettrici | |
| IT1073771B (it) | Perfezionamento nei circuiti elettrici di sicurezza | |
| IT994442B (it) | Perfezionamento nei circuiti integrati | |
| IT1005938B (it) | Perfezionamenti nei sezionatori di circuiti elettrici adatti in particolare per protezione contro circuiti | |
| IT1015222B (it) | Perfezionamento nei circuiti elet tronici di commutazione | |
| IT1005939B (it) | Perfezionamento nei sezionatori di circuiti elettrici | |
| AT302492B (de) | Schaltungsanordnung zur Blindstromkompensation in Mehrphasennetzen | |
| IT1055300B (it) | Perfezionamento nei circuiti per centrale di telecomunicazioni | |
| SE404554B (sv) | Spenningsjemforelsekrets | |
| BE756495A (fr) | Element de commutation electronique | |
| CH515603A (de) | Flüssigkeitsarmer Leistungsschalter |