IT1084030B - Apparecchiatura di segnalazione per sistemi di telecomunicazione - Google Patents
Apparecchiatura di segnalazione per sistemi di telecomunicazioneInfo
- Publication number
- IT1084030B IT1084030B IT23369/77A IT2336977A IT1084030B IT 1084030 B IT1084030 B IT 1084030B IT 23369/77 A IT23369/77 A IT 23369/77A IT 2336977 A IT2336977 A IT 2336977A IT 1084030 B IT1084030 B IT 1084030B
- Authority
- IT
- Italy
- Prior art keywords
- telecommunication systems
- signaling equipment
- signaling
- equipment
- telecommunication
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
- H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
- H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/686,303 US4075430A (en) | 1976-05-14 | 1976-05-14 | Line signalling over common highway for telecommunications system |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1084030B true IT1084030B (it) | 1985-05-25 |
Family
ID=24755758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23369/77A IT1084030B (it) | 1976-05-14 | 1977-05-10 | Apparecchiatura di segnalazione per sistemi di telecomunicazione |
Country Status (3)
Country | Link |
---|---|
US (1) | US4075430A (it) |
BE (1) | BE865473Q (it) |
IT (1) | IT1084030B (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2740104C2 (de) * | 1977-09-06 | 1983-04-21 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Fernmeldeanlage mit einem zentralgesteuerten Koppelfeld |
US4354062A (en) * | 1980-01-31 | 1982-10-12 | Bell Telephone Laboratories, Incorporated | Communication system signaling circuit |
US4349703A (en) * | 1980-03-31 | 1982-09-14 | International Telephone And Telegraph Corporation | Programmable ring signal generator |
KR900008817A (ko) * | 1988-11-30 | 1990-06-04 | 안시환 | 교환시스템에서의 자동적인 링 부하 균등 배분방법 |
US7183871B2 (en) * | 2001-05-07 | 2007-02-27 | Viewsonics, Inc | Bi-directional access point |
US6646519B2 (en) | 2001-05-07 | 2003-11-11 | Viewsonics, Inc. | RF equalizer |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3223787A (en) * | 1961-02-20 | 1965-12-14 | Stromberg Carlson Corp | Telephone ringing control system |
US3066193A (en) * | 1961-04-07 | 1962-11-27 | Gen Dynamics Corp | Tone selection circuit |
DE2211400C2 (de) * | 1972-03-09 | 1974-02-21 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Zweistufiges Zeitmultiplex-Vermittlungssystem |
CA1018270A (en) * | 1972-05-23 | 1977-09-27 | Federico R. Laliccia | Key telephone system using time division and space division control |
CH580372A5 (it) * | 1973-08-29 | 1976-09-30 | Telefonbau & Normalzeit Gmbh | |
US3973085A (en) * | 1974-09-26 | 1976-08-03 | The Anaconda Company | Key telephone system with directly associated station cards and sets |
US3978293A (en) * | 1974-11-07 | 1976-08-31 | Bell Telephone Laboratories, Incorporated | Ringing control circuitry with shared ringing loop current detector |
US3914559A (en) * | 1974-11-07 | 1975-10-21 | Bell Telephone Labor Inc | Universal PBX line circuit for key and non-key service |
US3916118A (en) * | 1974-11-07 | 1975-10-28 | Bell Telephone Labor Inc | Station loop control arrangement for telephone switching system |
-
1976
- 1976-05-14 US US05/686,303 patent/US4075430A/en not_active Expired - Lifetime
-
1977
- 1977-05-10 IT IT23369/77A patent/IT1084030B/it active
-
1978
- 1978-03-30 BE BE2056822A patent/BE865473Q/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BE865473Q (fr) | 1978-10-02 |
US4075430A (en) | 1978-02-21 |
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