Rf repeaters for time division cordless telephone systems...

Details Rf repeaters for time division cordless telephone systems... Rf repeaters for time division cordless telephone systems...

H - Electricity

04

Q

H04Q 7/36 (2006.01) H04B 7/15 (2006.01)

Patent

CA 2168681

An RF repeater for exchanging digital telephone signals between a basestation and a mobile cordless handset, has an amplifier for amplifying basestation-to-handset signals and handset-to-basestation signals, a timing generator for providing a timing output and a switching arrangement operable in response to the timing output to sample the signals and to connect the sampled signals alternately to the amplifier for amplification thereby. The timing output of the timing generator having a frequency sufficient to effect Nyquist sampling of the signals by said switching arrangement and at least one filter connected to the amplifier for reconstructing the signals from the amplified samples thereof so that said signal timing information is not required.

L'invention est un répéteur RF utilisé pour échanger des signaux téléphoniques numériques entre une station de base et un combiné mobile sans fil. Ce répéteur comporte un amplificateur servant à amplifier les signaux transmis de la station de base au combiné et du combiné à la station de base, un générateur de signaux d'horloge et un dispositif de commutation fonctionnant en réponse au signal d'horloge pour échantillonner les signaux et pour transmettre les signaux échantillonnés à l'amplificateur. Les signaux d'horloge ont une fréquence suffisamment élevée pour permettre l'échantillonnage des signaux par ledit dispositif de commutation et au moins un filtre connecté à l'amplificateur, afin de reconstruire les signaux à partir des échantillons amplifiés, de sorte qu'aucune information supplémentaire sur le signal d'horloge n'est nécessaire.

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