Data transmission method

H - Electricity – 04 – L

Patent

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Details

H04L 25/49 (2006.01) H04L 25/38 (2006.01) H04L 7/04 (2006.01)

Patent

CA 2336916

The invention relates to a method for the asynchronous serial data transmission between a transmitter and a receiver over a radio transmission link, whereby a synchronization data frame and a carrier recognition frame is arranged in front of the useful data frame. The data frames are each enframed at the beginning and end by a start bit and a stop bit at the beginning and end. The coding of all data frames results such that, in addition to the start and stop bits, an equal number of zero and one bits exists.

L'invention concerne un procédé de transmission de données asynchrone sérielle entre un émetteur et un récepteur, par l'intermédiaire d'une voie de transmission radio, une trame de données de synchronisation et une trame de données de reconnaissance de porteuse étant placées avant la trame de données utile. Les trames de données sont chacune encadrées, au début et à la fin, par un bit de début et par un bit de fin. Le codage de toutes les trames de données se fait de telle sorte, que, y compris les bits de début et d'arrêt, il y ait un nombre identique de bits "0" et de bits "1".

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