ES428810A1 - Mejoras en los sistemas duplex de comunicacion vocal. - Google Patents
Mejoras en los sistemas duplex de comunicacion vocal.Info
- Publication number
- ES428810A1 ES428810A1 ES428810A ES428810A ES428810A1 ES 428810 A1 ES428810 A1 ES 428810A1 ES 428810 A ES428810 A ES 428810A ES 428810 A ES428810 A ES 428810A ES 428810 A1 ES428810 A1 ES 428810A1
- Authority
- ES
- Spain
- Prior art keywords
- voice communication
- bandwidth
- display device
- communication system
- luminous display
- 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
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Optical Communication System (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732338846 DE2338846C3 (de) | 1973-07-31 | 1973-07-31 | Sprachübertragungssystem mit einem Übertragungskanal, bei dem die Verständigung zwischen zwei Teilnehmern in beiden Richtungen möglich ist |
Publications (1)
Publication Number | Publication Date |
---|---|
ES428810A1 true ES428810A1 (es) | 1976-08-16 |
Family
ID=5888505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES428810A Expired ES428810A1 (es) | 1973-07-31 | 1974-07-31 | Mejoras en los sistemas duplex de comunicacion vocal. |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE818287A (fr) |
DE (1) | DE2338846C3 (fr) |
ES (1) | ES428810A1 (fr) |
FR (1) | FR2239824B3 (fr) |
GB (1) | GB1440047A (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2737453C2 (de) * | 1977-08-19 | 1984-06-20 | Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Zeitmultiplexsystem |
DE3301351A1 (de) * | 1983-01-18 | 1984-07-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur digitalen sprachuebertragung ueber einen einzigen funkkanal |
GB8322992D0 (en) * | 1983-08-26 | 1983-09-28 | Gen Electric Co Plc | Line transmission systems |
GB2151436A (en) * | 1983-12-09 | 1985-07-17 | Philips Electronic Associated | Duplex speech transmission method and a system therefor |
GB2159375A (en) * | 1984-05-19 | 1985-11-27 | Advance Electronic Prod | Interrupt on priority communication systems |
GB8418935D0 (en) * | 1984-07-25 | 1984-08-30 | Racal Res Ltd | Duplex communications |
DE3510353A1 (de) * | 1985-03-22 | 1986-09-25 | ANT Nachrichtentechnik GmbH, 7150 Backnang | System zur uebertragung insbesondere von sprache |
EP0538546B1 (fr) * | 1986-03-25 | 2004-06-23 | Motorola Inc. | Méthode et appareil de commande d'un dispositif de communication TDM |
US4949335A (en) * | 1989-01-23 | 1990-08-14 | Motorola, Inc. | A TDM quasi-duplex system |
EP0523366A3 (en) * | 1991-06-27 | 1993-06-23 | Siemens Aktiengesellschaft | Method for reducing power consumption in the mobile part of a cordless telephone |
GB9420913D0 (en) * | 1994-10-17 | 1994-11-30 | Spies Ronald W | Data compression transmission and receiving apparatus to economise on call time |
-
1973
- 1973-07-31 DE DE19732338846 patent/DE2338846C3/de not_active Expired
-
1974
- 1974-07-25 GB GB3286674A patent/GB1440047A/en not_active Expired
- 1974-07-31 FR FR7426573A patent/FR2239824B3/fr not_active Expired
- 1974-07-31 ES ES428810A patent/ES428810A1/es not_active Expired
- 1974-07-31 BE BE2053784A patent/BE818287A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
DE2338846B2 (de) | 1978-07-20 |
DE2338846C3 (de) | 1979-03-15 |
GB1440047A (en) | 1976-06-23 |
FR2239824B3 (fr) | 1977-06-03 |
DE2338846A1 (de) | 1975-02-27 |
BE818287A (fr) | 1975-01-31 |
AU7177474A (en) | 1976-01-29 |
FR2239824A1 (fr) | 1975-02-28 |
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