ES2012908A6 - Sistema de transmision de comunicaciones telegraficas. - Google Patents
Sistema de transmision de comunicaciones telegraficas.Info
- Publication number
- ES2012908A6 ES2012908A6 ES8803825A ES8803825A ES2012908A6 ES 2012908 A6 ES2012908 A6 ES 2012908A6 ES 8803825 A ES8803825 A ES 8803825A ES 8803825 A ES8803825 A ES 8803825A ES 2012908 A6 ES2012908 A6 ES 2012908A6
- Authority
- ES
- Spain
- Prior art keywords
- phonotelex
- telex
- telephone
- line
- teletype
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4902—Pulse width modulation; Pulse position modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Telephonic Communication Services (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Abstract
SISTEMA DE TRANSMISION DE COMUNICACIONES TELEGRAFICAS. EL SISTEMA DE TRANSMISION DE COMUNICACIONES TELEGRAFICAS A TRAVES DE LA RED TELEFONICA CONMUTADA ESTA CONSTITUIDO POR DOS APARATOS DENOMINADOS FONOTELEX, UNO DE ELLOS CONECTADO A UN TELETIPO Y OTRO A UNA CENTRAL TELEX, DISPONIENDO CADA UNO DE ELLOS DE UN CABLE DE CONEXION A LA LINEA TELEFONICA Y DESCONECTORES PARA CONECTAR UN TELEFONO ASOCIADO Y UN TELETIPO O LINEA TELEX, ADEMAS DE UN TRANSFORMADOR ENCHUFABLE PARA SU CONEXION A LA RED ELECTRICA. CADA FONOTELEX A SU VEZ ESTA CONSTITUIDO POR LA ASOCIACION FUNCIONAL DE DOS INTERFACES, UNO DE ELLOS CON LA LINEA DE TELEX Y OTRO CON LA LINEA TELEFONICA, UN MODULO DE CONTROL Y UN MODULO DE ALIMENTACION. AMBOS FONOTELEX TIENEN UNA PARTE COMUN CONSTITUIDA POR CIRCUITOS DETECTORES DE CORRIENTE Y UN INTERRUPTOR DE LINEA Y OTRA PARTE DISTINTA, CONSTITUIDA POR UN CONVERTIDOR DC-DC Y UN SELECTOR DE POLARIDAD ENEL CONECTADO AL TELETIPO Y UNA RESISTENCIA ASOCIADA A UNCONTACTO EN EL CONECTADO A LA CENTRAL TELEX.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8803825A ES2012908A6 (es) | 1988-12-16 | 1988-12-16 | Sistema de transmision de comunicaciones telegraficas. |
EP19890500106 EP0374077A3 (en) | 1988-12-16 | 1989-10-16 | Transmission system for telegraphic communications |
DE1989500106 DE374077T1 (de) | 1988-12-16 | 1989-10-16 | Uebertragungssystem fuer telegraphische kommunikationen. |
GR90300139T GR900300139T1 (en) | 1988-12-16 | 1991-09-27 | Transmission system for telegraphic communications |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES8803825A ES2012908A6 (es) | 1988-12-16 | 1988-12-16 | Sistema de transmision de comunicaciones telegraficas. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2012908A6 true ES2012908A6 (es) | 1990-04-16 |
Family
ID=8259414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8803825A Expired - Lifetime ES2012908A6 (es) | 1988-12-16 | 1988-12-16 | Sistema de transmision de comunicaciones telegraficas. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0374077A3 (es) |
DE (1) | DE374077T1 (es) |
ES (1) | ES2012908A6 (es) |
GR (1) | GR900300139T1 (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2776876B1 (fr) * | 1998-03-26 | 2002-02-15 | Sagem | Procede de transmission telex, adaptateur de terminal telex, terminal et passerelle de reseau pour la mise en oeuvre du procede |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2034559A (en) * | 1978-11-20 | 1980-06-04 | Vardon Ass | Communications processor for selectively connecting an input/output terminal to any of a plurality of transmission lines |
JPS5810944A (ja) * | 1981-07-13 | 1983-01-21 | Fujitsu Ltd | テレツクス通信方式 |
US4596021A (en) * | 1984-04-12 | 1986-06-17 | Prentice Corporation | Modem for switching between voice and data communications on a single telephone call |
-
1988
- 1988-12-16 ES ES8803825A patent/ES2012908A6/es not_active Expired - Lifetime
-
1989
- 1989-10-16 DE DE1989500106 patent/DE374077T1/de active Pending
- 1989-10-16 EP EP19890500106 patent/EP0374077A3/en not_active Withdrawn
-
1991
- 1991-09-27 GR GR90300139T patent/GR900300139T1/el unknown
Also Published As
Publication number | Publication date |
---|---|
DE374077T1 (de) | 1990-11-08 |
EP0374077A3 (en) | 1991-11-06 |
EP0374077A2 (en) | 1990-06-20 |
GR900300139T1 (en) | 1991-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2008-12-16 |