ES2093807T3 - Procedimiento y dispositivo de transmision multiplexada de señales dtmf. - Google Patents
Procedimiento y dispositivo de transmision multiplexada de señales dtmf.Info
- Publication number
- ES2093807T3 ES2093807T3 ES92402619T ES92402619T ES2093807T3 ES 2093807 T3 ES2093807 T3 ES 2093807T3 ES 92402619 T ES92402619 T ES 92402619T ES 92402619 T ES92402619 T ES 92402619T ES 2093807 T3 ES2093807 T3 ES 2093807T3
- Authority
- ES
- Spain
- Prior art keywords
- frequency
- numerical
- speech
- voice
- multiplexed
- 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
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
- H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
- H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Time-Division Multiplex Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
LA INVENCION PERMITE TRANSMITIR PARES DE FRECUENCIAS VOCALES ENTRE N FRECUENCIAS PREDETERMINADAS SOBRE UNA RED TELEFONICA DE TRANSMISION DE PALABRA EN FORMA DE UN MULTIPLEX DE TRAMOS BINARIOS DE PALABRA QUE TIENE UN FORMATO DETERMINADO. PARA ESTO SE A ASIGNADO A CADA FRECUENCIA VOCAL O A CADA PAR DE FRECUENCIAS UN CODIGO NUMERICO; SE GENERAN LOS CODIGOS NUMERICOS RESPECTIVOS EN RESPUESTA A UN CONTROL DE EMISION DE UN PAR DE FRECUENCIAS; SE INSERTA CADA CODIGO NUMERICO EN UN TRAMO NUMERICO EN DICHO FORMATO QUE COMPRENDE UNA PALABRA DE IDENTIFICACION QUE CONSTITUYE UN GRUPO EXCLUIDO PARA LOS TRAMOS DE PALABRA; Y, A LA RECEPCION, SE GENERAN LOS PARES DE FRECUENCIAS VOCALES RESPECTIVOS MEDIANTE EL DECODIFICADOR DE PALABRA, EN RESPUESTA AL RECONOCIMIENTO DE DICHOS CODIGOS NUMERICOS, EN SINCRONISMO CON LOS TRAMOS QUE COMPRENDEN UNA DE DICHAS PALABRAS DE IDENTIFICACION.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9111924A FR2682002B1 (fr) | 1991-09-27 | 1991-09-27 | Procede et dispositif de transmission de signaux a frequences vocales. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2093807T3 true ES2093807T3 (es) | 1997-01-01 |
Family
ID=9417367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92402619T Expired - Lifetime ES2093807T3 (es) | 1991-09-27 | 1992-09-24 | Procedimiento y dispositivo de transmision multiplexada de señales dtmf. |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0534852B1 (es) |
AT (1) | ATE145311T1 (es) |
DE (1) | DE69215183T2 (es) |
DK (1) | DK0534852T3 (es) |
ES (1) | ES2093807T3 (es) |
FR (1) | FR2682002B1 (es) |
GR (1) | GR3021779T3 (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI100932B (fi) * | 1995-04-12 | 1998-03-13 | Nokia Telecommunications Oy | Äänitaajuussignaalien lähetys radiopuhelinjärjestelmässä |
CA2187832A1 (en) * | 1995-12-21 | 1997-06-22 | Jari Hagqvist | Dtmf for downlink channel in a cellular/mobile/pcs telephone system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4837800A (en) * | 1988-03-18 | 1989-06-06 | Motorola, Inc. | Cellular data telephone system and cellular data telephone therefor |
-
1991
- 1991-09-27 FR FR9111924A patent/FR2682002B1/fr not_active Expired - Fee Related
-
1992
- 1992-09-24 AT AT92402619T patent/ATE145311T1/de not_active IP Right Cessation
- 1992-09-24 EP EP92402619A patent/EP0534852B1/fr not_active Expired - Lifetime
- 1992-09-24 DE DE69215183T patent/DE69215183T2/de not_active Expired - Fee Related
- 1992-09-24 ES ES92402619T patent/ES2093807T3/es not_active Expired - Lifetime
- 1992-09-24 DK DK92402619.8T patent/DK0534852T3/da active
-
1996
- 1996-11-27 GR GR960403176T patent/GR3021779T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
ATE145311T1 (de) | 1996-11-15 |
GR3021779T3 (en) | 1997-02-28 |
EP0534852A1 (fr) | 1993-03-31 |
DE69215183D1 (de) | 1996-12-19 |
DK0534852T3 (es) | 1997-01-20 |
EP0534852B1 (fr) | 1996-11-13 |
DE69215183T2 (de) | 1997-05-15 |
FR2682002B1 (fr) | 1993-12-24 |
FR2682002A1 (fr) | 1993-04-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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