FI810438L - Foerfarande foer styrning av oeverfoering av pcm-signaler mellan anslutningar i pcm-tidsmultiplex-telefonnaet vid sammantraedesanvaendning och kopplingsanordning foer genomfoerande av foerfarandet - Google Patents
Foerfarande foer styrning av oeverfoering av pcm-signaler mellan anslutningar i pcm-tidsmultiplex-telefonnaet vid sammantraedesanvaendning och kopplingsanordning foer genomfoerande av foerfarandetInfo
- Publication number
- FI810438L FI810438L FI810438A FI810438A FI810438L FI 810438 L FI810438 L FI 810438L FI 810438 A FI810438 A FI 810438A FI 810438 A FI810438 A FI 810438A FI 810438 L FI810438 L FI 810438L
- Authority
- FI
- Finland
- Prior art keywords
- pcm
- conference
- receiving
- time
- pulse
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3005739A DE3005739C2 (de) | 1980-02-15 | 1980-02-15 | Verfahren zur Steuerung der Übertragung von PCM-Signalen zwischen Anschlußstellen eines PCM-Zeitmultiplex-Fernmeldenetzes in einem Konferenzbetrieb und Schaltungsanordnung zur Druchführung des Verfahrens |
DE3005739 | 1980-02-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI810438L true FI810438L (fi) | 1981-08-16 |
FI74182B FI74182B (fi) | 1987-08-31 |
FI74182C FI74182C (fi) | 1987-12-10 |
Family
ID=6094733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI810438A FI74182C (fi) | 1980-02-15 | 1981-02-13 | Foerfarande foer styrning av oeverfoering av pcm-signaler mellan anslutningar i pcm-tidsmultiplex-telefonnaet vid sammantraedesanvaendning och kopplingsanordning foer genomfoerande av foerfarandet. |
Country Status (5)
Country | Link |
---|---|
US (2) | US4449217A (fi) |
EP (1) | EP0034308B1 (fi) |
AT (1) | ATE5625T1 (fi) |
DE (1) | DE3005739C2 (fi) |
FI (1) | FI74182C (fi) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1211024B (it) * | 1981-04-16 | 1989-09-29 | Italtel Spa | Circuito conferenza per centrali telefoniche di commutazione di tipo numerico. |
DE3209452A1 (de) * | 1982-03-16 | 1983-09-22 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Schaltungsanordnung zum gleichzeitigen herstellen von mehreren konferenzverbindungen in einem digital nach dem pcm-verfahren durchschaltenden vermittlungssystem |
JPS60260261A (ja) * | 1984-06-07 | 1985-12-23 | Fuji Xerox Co Ltd | 会議電話用回路 |
US4606021A (en) * | 1984-08-17 | 1986-08-12 | Itt Corporation | Digital conference circuit |
HU193088B (en) * | 1985-03-21 | 1987-08-28 | Bhg Hiradastech Vallalat | Equipment for time shared digital interconnecting sources of information, in particular to the central exchanges |
US4797876A (en) * | 1987-07-10 | 1989-01-10 | Solid State Systems, Inc. | Conferencing bridge |
US4757494A (en) * | 1987-11-02 | 1988-07-12 | Gte Communication Systems Corporation | Method for generating additive combinations of PCM voice samples |
US4835767A (en) * | 1987-11-02 | 1989-05-30 | Gte Communication Systems Corporation | Additive PCM speaker circuit for a time shared conference arrangement |
US20040190701A1 (en) * | 2003-03-28 | 2004-09-30 | Versatel Networks Inc. | Apparatus and method for a distributed conference bridge |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2237383B1 (fi) * | 1973-07-12 | 1978-02-10 | Jeumont Schneider | |
CA1027265A (en) * | 1975-04-23 | 1978-02-28 | Alan S.J. Chapman | Method and apparatus for establishing a plurality of simultaneous conferences in a pcm switching system |
US3984643A (en) * | 1975-04-24 | 1976-10-05 | Northern Electric Company Limited | Method and apparatus for establishing a plurality of simultaneous conferences in a PCM switching system |
IT1040208B (it) * | 1975-07-31 | 1979-12-20 | Sits Soc It Telecom Siemens | Circuito cnferenza per centrali telefonische di commutazione di tipo numperico |
US4054757A (en) * | 1976-12-13 | 1977-10-18 | International Standard Electric Corporation | Conference circuit using PCM techniques |
US4119807A (en) * | 1977-06-13 | 1978-10-10 | Rca Corporation | Digital time division multiplex switching system |
DE2811466C3 (de) * | 1978-03-16 | 1981-01-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zur Herstellung von Konferenzverbindungen in einem PCM-Zeitmultiplexvermittlungssystem |
DE2812387C2 (de) * | 1978-03-21 | 1985-08-22 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und Schaltungsanordnung zur Herstellung von Konferenzverbindungen in einem PCM-Zeitmultiplexvermittlungssystem |
US4190742A (en) * | 1978-06-05 | 1980-02-26 | Siemens Aktiengesellschaft | Process and apparatus for producing conference connections in a PCM time multiplex switching system |
US4190744A (en) * | 1978-06-05 | 1980-02-26 | Siemens Aktiengesellschaft | Circuit arrangement and process for producing conference connections between three conference parties in a PCM time multiplex switching system |
US4229814A (en) * | 1978-07-21 | 1980-10-21 | E-Systems, Inc. | Multiplex conference bridge |
US4301531A (en) * | 1979-07-02 | 1981-11-17 | Motorola, Inc. | Three-party conference circuit for digital time-division-multiplex communication systems |
-
1980
- 1980-02-15 DE DE3005739A patent/DE3005739C2/de not_active Expired
-
1981
- 1981-02-05 EP EP81100819A patent/EP0034308B1/de not_active Expired
- 1981-02-05 AT AT81100819T patent/ATE5625T1/de not_active IP Right Cessation
- 1981-02-12 US US06/233,816 patent/US4449217A/en not_active Expired - Fee Related
- 1981-02-13 FI FI810438A patent/FI74182C/fi not_active IP Right Cessation
-
1983
- 1983-11-04 US US06/503,421 patent/US4509166A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI74182B (fi) | 1987-08-31 |
FI74182C (fi) | 1987-12-10 |
DE3005739A1 (de) | 1981-10-15 |
EP0034308B1 (de) | 1983-12-14 |
US4449217A (en) | 1984-05-15 |
EP0034308A1 (de) | 1981-08-26 |
US4509166A (en) | 1985-04-02 |
DE3005739C2 (de) | 1988-11-10 |
ATE5625T1 (de) | 1983-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: SIEMENS NIXDORF INFORMATIONSSYSTEME AG |