ES2190863A1 - Sistema de transmision de informacion, en particular sistema telefonico. - Google Patents
Sistema de transmision de informacion, en particular sistema telefonico.Info
- Publication number
- ES2190863A1 ES2190863A1 ES200050008A ES200050008A ES2190863A1 ES 2190863 A1 ES2190863 A1 ES 2190863A1 ES 200050008 A ES200050008 A ES 200050008A ES 200050008 A ES200050008 A ES 200050008A ES 2190863 A1 ES2190863 A1 ES 2190863A1
- Authority
- ES
- Spain
- Prior art keywords
- digital converter
- analog
- transmission line
- directional
- directional analog
- 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
- 230000005540 biological transmission Effects 0.000 title abstract 6
- 230000002093 peripheral effect Effects 0.000 abstract 4
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/005—Interface circuits for subscriber lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/253—Telephone sets using digital voice transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13034—A/D conversion, code compression/expansion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13039—Asymmetrical two-way transmission, e.g. ADSL, HDSL
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1309—Apparatus individually associated with a subscriber line, line circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13176—Common channel signaling, CCS7
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13209—ISDN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1322—PBX
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13292—Time division multiplexing, TDM
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Telephonic Communication Services (AREA)
- Bidirectional Digital Transmission (AREA)
Abstract
La presente invención se refiere a un sistema de transmisión de información desde una estación central tal como una central automática (1) hasta una estación periférica tal como un terminal de abonado (4). La estación central (1) está conectada del lado de la central a un convertidor analógico/digital bidireccional (7) a través de un convertidor central bidireccional analógico/digital (5) y de una línea analógica de transmisión (11). El convertidor bidireccional analógico digital (7) del lado de la central tiene su correspondiente entrada o salida conectada a un convertidor bidireccional analógico/digital (8) del lado de la estación periférica a traves de una línea de transmisión digital y de los interfaces asociados a los terminales de la línea. El convertidor bidireccional analógico/digital (8) está conectado por el lado de entrada o salida a la estación periférica a través de otra línea de transmisión analógica (3). La curva caracteristica del convertidor bidireccional analógico/digital(7) del lado de la central y la del convertidor bidireccional analógico/digital (8) de la estación periférica son lineales. La línea de transmisión consiste en una línea de transmisión de alta velocidad (12, 21, 31).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0138897A AT408297B (de) | 1997-08-19 | 1997-08-19 | Nachrichtenübertragungssystem, insbesondere telephonsystem |
AT1388/97 | 1997-08-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2190863A1 true ES2190863A1 (es) | 2003-08-16 |
ES2190863B1 ES2190863B1 (es) | 2005-05-01 |
Family
ID=3512807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES200050008A Expired - Fee Related ES2190863B1 (es) | 1997-08-19 | 1998-08-12 | Sistema de transmision de informacion, en particular sistema telefonico. |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT408297B (es) |
AU (1) | AU8718098A (es) |
BR (1) | BR9811915A (es) |
ES (1) | ES2190863B1 (es) |
GB (1) | GB2344967B (es) |
HK (1) | HK1027699A1 (es) |
PL (1) | PL338916A1 (es) |
WO (1) | WO1999009727A2 (es) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991020141A1 (de) * | 1990-06-13 | 1991-12-26 | Semcotec Handelsgesellschaft M.B.H. | Nachrichtenübertragungssystem |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9323337D0 (en) * | 1993-11-11 | 1994-01-05 | Marconi Gec Ltd | High-speed digital subscriber lines |
-
1997
- 1997-08-19 AT AT0138897A patent/AT408297B/de not_active IP Right Cessation
-
1998
- 1998-08-12 ES ES200050008A patent/ES2190863B1/es not_active Expired - Fee Related
- 1998-08-12 AU AU87180/98A patent/AU8718098A/en not_active Abandoned
- 1998-08-12 BR BR9811915-0A patent/BR9811915A/pt not_active IP Right Cessation
- 1998-08-12 PL PL98338916A patent/PL338916A1/xx unknown
- 1998-08-12 WO PCT/AT1998/000190 patent/WO1999009727A2/de not_active IP Right Cessation
- 1998-08-12 GB GB0005611A patent/GB2344967B/en not_active Expired - Fee Related
-
2000
- 2000-09-11 HK HK00105718A patent/HK1027699A1/xx not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991020141A1 (de) * | 1990-06-13 | 1991-12-26 | Semcotec Handelsgesellschaft M.B.H. | Nachrichtenübertragungssystem |
Also Published As
Publication number | Publication date |
---|---|
AU8718098A (en) | 1999-03-08 |
GB0005611D0 (en) | 2000-05-03 |
WO1999009727A3 (de) | 1999-05-14 |
GB2344967B (en) | 2002-08-28 |
AT408297B (de) | 2001-10-25 |
ES2190863B1 (es) | 2005-05-01 |
WO1999009727A2 (de) | 1999-02-25 |
PL338916A1 (en) | 2000-11-20 |
GB2344967A (en) | 2000-06-21 |
HK1027699A1 (en) | 2001-01-19 |
BR9811915A (pt) | 2000-09-05 |
ATA138897A (de) | 2001-02-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 20030816 Kind code of ref document: A1 |
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FD1A | Patent lapsed |
Effective date: 20100312 |