DE3268641D1 - Digital conference circuit and method - Google Patents
Digital conference circuit and methodInfo
- Publication number
- DE3268641D1 DE3268641D1 DE8282302674T DE3268641T DE3268641D1 DE 3268641 D1 DE3268641 D1 DE 3268641D1 DE 8282302674 T DE8282302674 T DE 8282302674T DE 3268641 T DE3268641 T DE 3268641T DE 3268641 D1 DE3268641 D1 DE 3268641D1
- Authority
- DE
- Germany
- Prior art keywords
- pcm
- words
- conferee
- conference circuit
- pcm words
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
- H04M3/569—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants using the instant speaker's algorithm
Landscapes
- Engineering & Computer Science (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)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA000379209A CA1151327A (en) | 1981-06-08 | 1981-06-08 | Digital conference circuit and method |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3268641D1 true DE3268641D1 (en) | 1986-03-06 |
Family
ID=4120165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8282302674T Expired DE3268641D1 (en) | 1981-06-08 | 1982-05-25 | Digital conference circuit and method |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0067006B1 (de) |
JP (1) | JPS5820055A (de) |
AT (1) | ATE17624T1 (de) |
CA (1) | CA1151327A (de) |
DE (1) | DE3268641D1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8324058D0 (en) * | 1983-09-08 | 1983-10-12 | Plessey Co Plc | Conference bridge circuit arrangement |
US4588986A (en) * | 1984-09-28 | 1986-05-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for operating on companded PCM voice data |
GB2183965A (en) * | 1985-12-10 | 1987-06-10 | Weng Pu San | Circuit structure of teleconference |
US5390177A (en) * | 1993-03-24 | 1995-02-14 | At&T Corp. | Conferencing arrangement for compressed information signals |
ATA12995A (de) * | 1995-01-25 | 1997-02-15 | Alcatel Austria Ag | Digitale fernmeldevermittlungseinrichtung mit einer schaltungsanordnung zum herstellen einer konferenzverbindung |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3428754A (en) * | 1965-08-06 | 1969-02-18 | Bell Telephone Labor Inc | Conference system wherein transmitting and receiving terminals are separately connected to a talking bus |
GB1458032A (en) * | 1973-02-05 | 1976-12-08 | Gen Electric Co Ltd | Conference circuits for use in telecommunications systems |
US3970797A (en) * | 1975-01-13 | 1976-07-20 | Gte Sylvania Incorporated | Digital conference bridge |
FR2332663A1 (fr) * | 1975-11-20 | 1977-06-17 | Labo Cent Telecommunicat | Circuit de conference pour reseau de commutation mic |
JPS5528608A (en) * | 1978-08-21 | 1980-02-29 | Toshiba Corp | Conference operation system |
US4224688A (en) * | 1978-10-30 | 1980-09-23 | Northern Telecom Limited | Digital conference circuit |
US4267593A (en) * | 1979-06-15 | 1981-05-12 | Wescom Switching, Inc. | Method and means for digital conferencing |
-
1981
- 1981-06-08 CA CA000379209A patent/CA1151327A/en not_active Expired
-
1982
- 1982-05-25 AT AT82302674T patent/ATE17624T1/de not_active IP Right Cessation
- 1982-05-25 DE DE8282302674T patent/DE3268641D1/de not_active Expired
- 1982-05-25 EP EP82302674A patent/EP0067006B1/de not_active Expired
- 1982-06-08 JP JP57097050A patent/JPS5820055A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
ATE17624T1 (de) | 1986-02-15 |
JPH0328868B2 (de) | 1991-04-22 |
EP0067006B1 (de) | 1986-01-22 |
CA1151327A (en) | 1983-08-02 |
JPS5820055A (ja) | 1983-02-05 |
EP0067006A1 (de) | 1982-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |