Data communication apparatus

H - Electricity – 04 – B

Patent

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Details

H04B 1/59 (2006.01) G06K 19/07 (2006.01)

Patent

CA 2283250

A data communication apparatus according to the present invention can be used both in one-wave mode and two-wave mode, and includes: first and second tuning circuits (1, 2); a power supply circuit (3) connected to first tuning circuit (1) for generating power by a signal received by first tuning circuit (1); an information processing circuit (15) connected to first tuning circuit (1) or second tuning circuit (2) through a switching circuit (6) and including a detection circuit (7), a decoder (8), an encoder (10) and the like. Information processing circuit (15) includes a switch control circuit (14) detecting if the mode of the received radio wave is one-wave mode or two-wave mode in accordance with an output from first tuning circuit (1) and controlling switching circuit (6) such that detection circuit (7) is connected to one of first and second tuning circuits (1, 2).

Ce dispositif de télécommunication (répondeur), pouvant correspondre avec à la fois un système à une onde et un système à deux ondes, comprend des premier et second circuits d'accord (1, 2) un circuit d'alimentation en énergie (3) connecté au premier circuit d'accord (1) et conçu pour produire de l'énergie au moyen d'un signal reçu à partir de ce premier circuit (1), ainsi qu'un circuit de traitement d'informations (15); ce dernier circuit (15) est connecté au premier (1) ou au second (2) circuit d'accord au moyen d'un circuit de commutation (6), il comprend un circuit de détection d'onde (7), un décodeur (8) et un codeur (10), ainsi qu'un circuit (14) destiné à détecter si le système d'onde radio reçue est un système à une onde ou un système à deux ondes, d'après la sortie produite par le premier circuit d'accord (1), et à commander le circuit de commutation (6) afin que celui-ci connecte le circuit de détection d'onde (7) à l'un ou l'autre des premier et second circuits d'accord (1, 2).

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