G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 19/07 (2006.01) G06F 1/035 (2006.01)
Patent
CA 2297259
The invention concerns a method and a system for voice transmission of a binary data sequence, the system comprising a master oscillator (OS), a FSK modulator circuit (3) receiving said sequence, an intermediate processing circuit (5) and a piezoelectric transducer (P). A logic excitation signal is applied to the transducer (P) terminals (b1, b2) and is integrated by the transducer (P) impedance capacitive part to reproduce a sinusoidal acoustic signal which is transmitted by the transducer (P) at a different voice frequency according to the logic state of the bit to transmitted.
Procédé et système de transmission sous forme vocale d'une séquence de données binaires, le système comprenant un oscillateur pilote (OS), un circuit de modulation (3) du type FSK recevant ladite séquence, un circuit de traitement intermédiaire (5) et un transducteur piézo-électrique (P). Un signal d'excitation logique est appliqué aux bornes (b1, b2) du transducteur (P) et est intégré au moyen de la partie capacitive de l'impédance du transducteur (P) pour reconstituer un signal acoustique de forme sinusoïdale qui est émis par le transducteur (P) à une fréquence vocale différente suivant l'état logique du bit à transmettre.
Ball Eric
Colnot Cedric
Elva S.a.
Robic
LandOfFree
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