FR2454243A1 - TDM switching network with two time division stages - has buffer stores controlled to transfer a word in particular incoming slot to particular outgoing highway - Google Patents
TDM switching network with two time division stages - has buffer stores controlled to transfer a word in particular incoming slot to particular outgoing highwayInfo
- Publication number
- FR2454243A1 FR2454243A1 FR7909332A FR7909332A FR2454243A1 FR 2454243 A1 FR2454243 A1 FR 2454243A1 FR 7909332 A FR7909332 A FR 7909332A FR 7909332 A FR7909332 A FR 7909332A FR 2454243 A1 FR2454243 A1 FR 2454243A1
- Authority
- FR
- France
- Prior art keywords
- switching network
- highways
- word
- buffer stores
- transfer
- 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.)
- Granted
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)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
Groups of N incoming and outgoing multiplex highways and P incoming and outgoing supermultiplex highways are each formed of N multiplex highways and have aN time slots where a is the number of time slots in a multiplex highway. The supermultiplex highways are multiplexed two by two and with themselves to form double supermultiplex highways each having 2aN time slots. Thus there exists a double supermultiplex highway simultaneously containing any time slot assigned to a calling party and any time slot assigned to a called party whatever be these time slots. The buffer stores of the switching network unit can thus be rendered bidirectional and their number is P(P+1)/2 instead of P2 in the prior art.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7909332A FR2454243A1 (en) | 1979-04-12 | 1979-04-12 | TDM switching network with two time division stages - has buffer stores controlled to transfer a word in particular incoming slot to particular outgoing highway |
JP50098379A JPS5917598B2 (en) | 1978-06-30 | 1979-07-02 | time-time multiplex time division switching network unit |
DE2952891A DE2952891C1 (en) | 1978-06-30 | 1979-07-02 | Two-stage time division switching system |
US06/054,238 US4272844A (en) | 1978-06-30 | 1979-07-02 | Multiplex time division switching network unit of the time-time type |
GB7922863A GB2026285B (en) | 1978-06-30 | 1979-07-02 | Multiplex time division switching network unit |
PCT/GB1979/000109 WO1980000211A1 (en) | 1978-06-30 | 1979-07-02 | Multiplex time division switching network unit of the"time-time"type |
CA330,991A CA1128178A (en) | 1978-06-30 | 1979-07-03 | Multiplex time division switching network unit of the "time-time" type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7909332A FR2454243A1 (en) | 1979-04-12 | 1979-04-12 | TDM switching network with two time division stages - has buffer stores controlled to transfer a word in particular incoming slot to particular outgoing highway |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2454243A1 true FR2454243A1 (en) | 1980-11-07 |
FR2454243B1 FR2454243B1 (en) | 1981-10-23 |
Family
ID=9224275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7909332A Granted FR2454243A1 (en) | 1978-06-30 | 1979-04-12 | TDM switching network with two time division stages - has buffer stores controlled to transfer a word in particular incoming slot to particular outgoing highway |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2454243A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3740483A (en) * | 1971-12-30 | 1973-06-19 | Bell Telephone Labor Inc | Time division switching system with bilateral time slot interchangers |
FR2265240A1 (en) * | 1974-03-22 | 1975-10-17 | Constr Telephoniques | |
FR2339309A1 (en) * | 1976-01-23 | 1977-08-19 | Siemens Ag | TIME-DISTRIBUTION MULTIPLEXING COUPLING FIELD |
-
1979
- 1979-04-12 FR FR7909332A patent/FR2454243A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3740483A (en) * | 1971-12-30 | 1973-06-19 | Bell Telephone Labor Inc | Time division switching system with bilateral time slot interchangers |
FR2265240A1 (en) * | 1974-03-22 | 1975-10-17 | Constr Telephoniques | |
FR2339309A1 (en) * | 1976-01-23 | 1977-08-19 | Siemens Ag | TIME-DISTRIBUTION MULTIPLEXING COUPLING FIELD |
Non-Patent Citations (2)
Title |
---|
EXBK/76 * |
EXBK/77 * |
Also Published As
Publication number | Publication date |
---|---|
FR2454243B1 (en) | 1981-10-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |