High frequency network communications over various lines

H - Electricity – 04 – M

Patent

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Details

H04M 11/04 (2006.01) H04B 3/54 (2006.01)

Patent

CA 2380322

An apparatus for high frequency electrical line communication includes a transmitter, a receiver, a modem (14), and a coupler (16) at each of two or more locations along an electrical line (18). The couplers (16) have capacitive circuits serially connected with an air-core or dielectric-core transformer. The capacitive circuits resonate with the transformer at a preselected frequency. The coupler eliminates noise and is matched to the characteristic impedance of the line at the preselected frequency, which linearizes communication on the line and allows high speed data and voice communication over long distances.

L'invention concerne un appareil de communication utilisant une ligne électrique haute fréquence, qui comprend un émetteur, un récepteur, un modem (14) et un coupleur (16) placé à deux ou plusieurs emplacements le long d'une ligne électrique (18). Les coupleurs (16) comprennent un circuit capacitif connecté en série à un transformateur à noyau d'air ou à noyau diélectrique. Les circuits capacitifs résonnent avec le transformateur à une fréquence préétablie. Le coupleur élimine le bruit et s'adapte à l'impédance caractéristique de la ligne à ladite fréquence préétablie, ce qui linéarise la communication sur la ligne et permet d'effectuer des transmissions de données et des communications voisées à haut débit sur de longues distances.

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