ZA792747B - A process and apparatus for producing conference connections in a pcm time multiplex switching system - Google Patents
A process and apparatus for producing conference connections in a pcm time multiplex switching systemInfo
- Publication number
- ZA792747B ZA792747B ZA792747A ZA792747A ZA792747B ZA 792747 B ZA792747 B ZA 792747B ZA 792747 A ZA792747 A ZA 792747A ZA 792747 A ZA792747 A ZA 792747A ZA 792747 B ZA792747 B ZA 792747B
- Authority
- ZA
- South Africa
- Prior art keywords
- switching system
- time multiplex
- multiplex switching
- pcm time
- conference connections
- Prior art date
Links
Classifications
-
- 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)
- Time-Division Multiplex Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/912,440 US4190742A (en) | 1978-06-05 | 1978-06-05 | Process and apparatus for producing conference connections in a PCM time multiplex switching system |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA792747B true ZA792747B (en) | 1980-08-27 |
Family
ID=25431923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA792747A ZA792747B (en) | 1978-06-05 | 1979-06-04 | A process and apparatus for producing conference connections in a pcm time multiplex switching system |
Country Status (8)
Country | Link |
---|---|
US (1) | US4190742A (xx) |
EP (1) | EP0005833B1 (xx) |
AR (1) | AR228840A1 (xx) |
AT (1) | ATE1082T1 (xx) |
DE (1) | DE2962881D1 (xx) |
GR (1) | GR77618B (xx) |
LU (1) | LU81346A1 (xx) |
ZA (1) | ZA792747B (xx) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3005162A1 (de) * | 1980-02-12 | 1981-08-20 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur einspeisung von hoertoenen in konferenzverbindungen |
DE3005739C2 (de) * | 1980-02-15 | 1988-11-10 | Nixdorf Computer Ag, 4790 Paderborn | Verfahren zur Steuerung der Übertragung von PCM-Signalen zwischen Anschlußstellen eines PCM-Zeitmultiplex-Fernmeldenetzes in einem Konferenzbetrieb und Schaltungsanordnung zur Druchführung des Verfahrens |
DE3148886C1 (de) * | 1981-12-10 | 1983-08-11 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Verfahren und Schaltungsanordnung zum Herstellen einer Konferenzverbindung |
US4430734A (en) * | 1981-12-14 | 1984-02-07 | Bell Telephone Laboratories, Incorporated | Demultiplexer circuit |
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 |
US4477897A (en) * | 1982-06-24 | 1984-10-16 | At&T Bell Laboratories | Linear time division multiplexed conferencer |
US4481624A (en) * | 1982-06-24 | 1984-11-06 | At&T Bell Laboratories | Linear time division multiplexed conferencer |
US4499577A (en) * | 1982-10-18 | 1985-02-12 | At&T Bell Laboratories | Linear time division multiplexed conferencer for data transfer applications |
US4541087A (en) * | 1983-06-27 | 1985-09-10 | Confertech International, Inc. | Digital teleconferencing control device, system and method |
JPS60176356A (ja) * | 1984-02-22 | 1985-09-10 | Hitachi Ltd | Pcm符号復号器 |
JPS60253361A (ja) * | 1984-05-30 | 1985-12-14 | Fujitsu Ltd | 会議通話機能を有する交換システム |
US4575845A (en) * | 1984-09-06 | 1986-03-11 | At&T Bell Laboratories | Time division multiplex conferencer |
JPS6190565A (ja) * | 1984-10-11 | 1986-05-08 | Iwatsu Electric Co Ltd | 会議通話方式 |
US4646288A (en) * | 1985-01-31 | 1987-02-24 | Denro Laboratories, Inc. | Multi-line accumulator/multiplexer |
US4686512A (en) * | 1985-03-01 | 1987-08-11 | Kabushiki Kaisha Toshiba | Integrated digital circuit for processing speech signal |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3551600A (en) * | 1968-02-23 | 1970-12-29 | Stromberg Carlson Corp | High capacity,high side-tone suppression,4-wire conference circuit |
GB1498400A (en) * | 1973-12-19 | 1978-01-18 | Post Office | Pulse code modulation systems |
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 |
FR2334244A1 (fr) * | 1975-12-04 | 1977-07-01 | Labo Cent Telecommunicat | Circuit de conference pour reseau de commutation mic |
US4119807A (en) * | 1977-06-13 | 1978-10-10 | Rca Corporation | Digital time division multiplex switching system |
-
1978
- 1978-06-05 US US05/912,440 patent/US4190742A/en not_active Expired - Lifetime
-
1979
- 1979-05-17 GR GR59273A patent/GR77618B/el unknown
- 1979-05-30 DE DE7979101666T patent/DE2962881D1/de not_active Expired
- 1979-05-30 EP EP79101666A patent/EP0005833B1/de not_active Expired
- 1979-05-30 AT AT79101666T patent/ATE1082T1/de active
- 1979-05-31 LU LU81346A patent/LU81346A1/de unknown
- 1979-06-01 AR AR276787A patent/AR228840A1/es active
- 1979-06-04 ZA ZA792747A patent/ZA792747B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2962881D1 (en) | 1982-07-08 |
EP0005833B1 (de) | 1982-05-19 |
EP0005833A1 (de) | 1979-12-12 |
AR228840A1 (es) | 1983-04-29 |
LU81346A1 (de) | 1979-09-11 |
GR77618B (xx) | 1984-09-25 |
US4190742A (en) | 1980-02-26 |
ATE1082T1 (de) | 1982-06-15 |
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