BR7900814A - Aperfeicoamento em sistema telefonico,em processo de processamento de sinais e rede comutadora digital - Google Patents
Aperfeicoamento em sistema telefonico,em processo de processamento de sinais e rede comutadora digitalInfo
- Publication number
- BR7900814A BR7900814A BR7900814A BR7900814A BR7900814A BR 7900814 A BR7900814 A BR 7900814A BR 7900814 A BR7900814 A BR 7900814A BR 7900814 A BR7900814 A BR 7900814A BR 7900814 A BR7900814 A BR 7900814A
- Authority
- BR
- Brazil
- Prior art keywords
- processing
- signs
- improvement
- telephone system
- switching network
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
-
- 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
- H04Q11/0407—Selecting arrangements for multiplex systems for time-division multiplexing using a stored programme control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Time-Division Multiplex Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87695678A | 1978-02-13 | 1978-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7900814A true BR7900814A (pt) | 1979-09-04 |
Family
ID=25368938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7900814A BR7900814A (pt) | 1978-02-13 | 1979-02-09 | Aperfeicoamento em sistema telefonico,em processo de processamento de sinais e rede comutadora digital |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0003633B2 (pt) |
JP (2) | JPS54139305A (pt) |
AT (1) | AT382058B (pt) |
AU (1) | AU525090B2 (pt) |
BR (1) | BR7900814A (pt) |
CA (1) | CA1129056A (pt) |
DE (1) | DE2964187D1 (pt) |
IL (1) | IL56382A (pt) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4562572A (en) * | 1983-01-11 | 1985-12-31 | International Telephone And Telegraph Corporation | Cellular mobile radio service telephone system |
DE3405011C1 (de) * | 1984-02-13 | 1989-03-16 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Schaltungsanordnung zum Betreiben von zweiadrigen, digitalen Anschluß- und/oder Verbindungsleitungen an einer Fernmeldevermittlungsanlage |
US4638474A (en) * | 1984-12-14 | 1987-01-20 | Itt Corporation | Communication system |
DE3502942A1 (de) * | 1985-01-30 | 1986-07-31 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Digitales mobilfunksystem |
US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
US4825448A (en) * | 1986-08-07 | 1989-04-25 | International Mobile Machines Corporation | Subscriber unit for wireless digital telephone system |
FR2638307B1 (fr) * | 1988-10-21 | 1994-06-10 | Cit Alcatel | Centre de commutation pour application radiomobile |
GB8907317D0 (en) * | 1989-03-31 | 1989-05-17 | Plessey Telecomm | Communications systems |
US5430724A (en) * | 1993-07-02 | 1995-07-04 | Telefonaktiebolaget L M Ericsson | TDMA on a cellular communications system PCM link |
US5546383A (en) | 1993-09-30 | 1996-08-13 | Cooley; David M. | Modularly clustered radiotelephone system |
DE4403356C2 (de) * | 1994-02-03 | 1997-03-06 | Siemens Ag | Verfahren und Anordnung zum Übertragen von Sprache in einem Funksystem |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3118018A (en) * | 1959-03-02 | 1964-01-14 | Bell Telephone Labor Inc | Mobile radio telephone integrated system |
US3663762A (en) * | 1970-12-21 | 1972-05-16 | Bell Telephone Labor Inc | Mobile communication system |
US3898390A (en) * | 1973-05-15 | 1975-08-05 | Martin Marietta Corp | Multiple zone communications system and method |
US3890469A (en) * | 1973-12-04 | 1975-06-17 | Gte Automatic Electric Lab Inc | Time division switching system |
JPS5136808A (en) * | 1974-09-25 | 1976-03-27 | Hitachi Ltd | Pcm denwakokankiniokeru tsuwarosochi |
US3920921A (en) * | 1974-12-13 | 1975-11-18 | Gte Automatic Electric Lab Inc | Line equipment for scan and control system for synchronized pcm digital switching exchange |
US4009343A (en) * | 1974-12-30 | 1977-02-22 | International Business Machines Corporation | Switching and activity compression between telephone lines and digital communication channels |
AU1515376A (en) * | 1975-06-23 | 1978-01-05 | Ericsson L M Pty Ltd | Digital data switch with spare switch group structure |
-
1979
- 1979-01-05 EP EP79300016A patent/EP0003633B2/en not_active Expired
- 1979-01-05 IL IL56382A patent/IL56382A/xx unknown
- 1979-01-05 DE DE7979300016T patent/DE2964187D1/de not_active Expired
- 1979-01-17 CA CA319,784A patent/CA1129056A/en not_active Expired
- 1979-02-07 AU AU44012/79A patent/AU525090B2/en not_active Ceased
- 1979-02-08 JP JP1382579A patent/JPS54139305A/ja active Pending
- 1979-02-09 BR BR7900814A patent/BR7900814A/pt unknown
- 1979-02-13 AT AT0110379A patent/AT382058B/de not_active IP Right Cessation
-
1987
- 1987-08-27 JP JP1987130868U patent/JPS63165934U/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CA1129056A (en) | 1982-08-03 |
JPS63165934U (pt) | 1988-10-28 |
EP0003633B2 (en) | 1986-05-21 |
ATA110379A (de) | 1986-05-15 |
AU4401279A (en) | 1979-08-23 |
EP0003633A1 (en) | 1979-08-22 |
AT382058B (de) | 1987-01-12 |
IL56382A0 (en) | 1979-03-12 |
DE2964187D1 (en) | 1983-01-13 |
EP0003633B1 (en) | 1982-12-08 |
IL56382A (en) | 1981-05-20 |
JPS54139305A (en) | 1979-10-29 |
AU525090B2 (en) | 1982-10-21 |
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