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1. WO1999033237 - DATA TRANSMISSION METHOD AND TRANSMITTER

Publication Number WO/1999/033237
Publication Date 01.07.1999
International Application No. PCT/FI1998/000964
International Filing Date 10.12.1998
Chapter 2 Demand Filed 07.07.1999
IPC
H04L 27/10 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
10Frequency-modulated carrier systems, i.e. using frequency-shift keying
H04L 27/12 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
10Frequency-modulated carrier systems, i.e. using frequency-shift keying
12Modulator circuits; Transmitter circuits
CPC
H04L 27/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
10Frequency-modulated carrier systems, i.e. using frequency-shift keying
H04L 27/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
10Frequency-modulated carrier systems, i.e. using frequency-shift keying
12Modulator circuits; Transmitter circuits
Applicants
  • NOKIA NETWORKS OY [FI]/[FI] (AllExceptUS)
  • PIIRAINEN, Olli [FI]/[FI] (UsOnly)
  • NIEMELÄ, Kari [FI]/[FI] (UsOnly)
Inventors
  • PIIRAINEN, Olli
  • NIEMELÄ, Kari
Agents
  • PATENTTITOIMISTO TEKNOPOLIS KOLSTER OY
Priority Data
97449511.12.1997FI
Publication Language English (en)
Filing Language Finnish (FI)
Designated States
Title
(EN) DATA TRANSMISSION METHOD AND TRANSMITTER
(FR) PROCEDE DE TRANSMISSION DE DONNEES ET EMETTEUR
Abstract
(EN) The invention relates to a data transmission method and transmitter comprising an encoder (204), a first multiplier (212) for multiplying a signal to be transmitted by a modulation index, and a frequency modulator (220). The signal to be transmitted may have different data rates. To advantageously enable the transmission of different data rates, the transmitter comprises means (212, 216) for multiplying the signal to be transmitted by the modulation index which depends on the data rate of the signal to be transmitted.
(FR) La présente invention concerne un procédé de transmission de données et un émetteur comprenant un codeur (204), un premier multiplicateur (212) qui multiplie un signal devant être transmis par un indice de modulation, et un modulateur de fréquence (220). Le signal devant être transmis peut présenter différents débits binaires. L'émetteur de la présente invention, qui offre l'avantage de permettre la transmission de différents débits binaires, comprend des moyens (212,216) qui multiplient le signal devant être transmis par l'indice de modulation, lequel indice dépend du débit binaire du signal devant être transmis.
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