ES2051391T3 - Modulador de gmsk. - Google Patents
Modulador de gmsk.Info
- Publication number
- ES2051391T3 ES2051391T3 ES90100758T ES90100758T ES2051391T3 ES 2051391 T3 ES2051391 T3 ES 2051391T3 ES 90100758 T ES90100758 T ES 90100758T ES 90100758 T ES90100758 T ES 90100758T ES 2051391 T3 ES2051391 T3 ES 2051391T3
- Authority
- ES
- Spain
- Prior art keywords
- gmsk
- sideband
- arrangement
- modulator
- gmsk modulator
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
- H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
- H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Circuits Of Receivers In General (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
EL INVENTO SE REFIERE A UNA DISPOSICION PARA MODULACION DE UN MENSAJE DIGITAL POR EL PROCEDIMIENTO GMSK (MINIMUM SHIFT KEYING GAUSSIANO), QUE POR MEDIO DE LA CORRESPONDIENTE PRECODIFICACION MUESTRA UNA CONDUCTA ANALOGA A UN MODULADOR DE MONOBANDA LATERAL. PARA PRODUCIR UNA SEÑAL GMSK HAY QUE INSTRUMENTAR UN DISPOSITIVO SENCILLO. POR ELLO, LA PATENTE CONTEMPLA UNA ELECCION DE LA INTERFRECUENCIA DEL ESPECTRO DE MONOBANDA PRODUCIDO (FRECUENCIA DE SALIDA DEL MODULADOR) QUE CUMPLA LA CONDICION: F(ZF) = FT/4 + N FT/2 PARA N >/= 1, EN EL QUE EL SISTEMA EXHIBE UNA RESPUESTA DE IMPULSO SIMPLE. EL SISTEMA SE REALIZA POR MEDIO DE UN FILTRO TRANSVERSAL Y TODA LA DISPOSICION EN UN PROM.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP89104193 | 1989-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2051391T3 true ES2051391T3 (es) | 1994-06-16 |
Family
ID=8201072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90100758T Expired - Lifetime ES2051391T3 (es) | 1989-03-09 | 1990-01-15 | Modulador de gmsk. |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0386412B1 (es) |
AT (1) | ATE104492T1 (es) |
DE (1) | DE59005305D1 (es) |
DK (1) | DK0386412T3 (es) |
ES (1) | ES2051391T3 (es) |
FI (1) | FI97760C (es) |
IE (1) | IE65459B1 (es) |
NO (1) | NO901037L (es) |
PT (1) | PT93368B (es) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969590A (en) * | 1975-04-04 | 1976-07-13 | Rockwell International Corporation | Surface acoustic wave apparatus |
US4648099A (en) * | 1984-12-17 | 1987-03-03 | Allied Corporation | Digital minimum shift keyed modulator |
-
1990
- 1990-01-15 ES ES90100758T patent/ES2051391T3/es not_active Expired - Lifetime
- 1990-01-15 AT AT90100758T patent/ATE104492T1/de not_active IP Right Cessation
- 1990-01-15 EP EP90100758A patent/EP0386412B1/de not_active Expired - Lifetime
- 1990-01-15 DK DK90100758.3T patent/DK0386412T3/da active
- 1990-01-15 DE DE59005305T patent/DE59005305D1/de not_active Expired - Fee Related
- 1990-03-05 NO NO90901037A patent/NO901037L/no unknown
- 1990-03-08 IE IE83290A patent/IE65459B1/en not_active IP Right Cessation
- 1990-03-08 FI FI901192A patent/FI97760C/fi not_active IP Right Cessation
- 1990-03-08 PT PT93368A patent/PT93368B/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI97760C (fi) | 1997-02-10 |
FI97760B (fi) | 1996-10-31 |
EP0386412B1 (de) | 1994-04-13 |
NO901037D0 (no) | 1990-03-05 |
NO901037L (no) | 1990-09-10 |
IE900832L (en) | 1990-09-09 |
ATE104492T1 (de) | 1994-04-15 |
FI901192A0 (fi) | 1990-03-08 |
PT93368B (pt) | 1996-05-31 |
EP0386412A1 (de) | 1990-09-12 |
IE65459B1 (en) | 1995-11-01 |
PT93368A (pt) | 1990-11-07 |
DK0386412T3 (da) | 1994-06-20 |
DE59005305D1 (de) | 1994-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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