System and method for communicating using an in-vehicle system

Details System and method for communicating using an in-vehicle system System and method for communicating using an in-vehicle system

H - Electricity

04

L

H04L 1/00 (2006.01)

Patent

CA 2733705

A method to be used with first and second devices (12, 36) where the first device (12) communicates with the second device (36) via numbered data packets where the second device needs to know the number of each received packet upon reception, the method comprising the acts of at the first device (12), forming (108) a plurality of separate initial data packets, for each initial data packet, associating (214) a unique number with the initial data packet, combining the initial data packet with its associated unique number to form a numbered packet, calculating (215) a checksum for the numbered packet, combining (216) the checksum with the initial data packet to form a transmission packet that fails to include the associated unique number and transmitting (112) the transmission packet to the second device.

L'invention porte sur un procédé devant être utilisé avec des premier et second dispositifs (12, 36), le premier dispositif (12) communiquant avec le second dispositif (36) par l'intermédiaire de paquets de données numérotés, le second dispositif ayant besoin de connaître le numéro de chaque paquet reçu lors de la réception, le procédé comprenant les actions consistant à, au niveau du premier dispositif (12), former (108) une pluralité de paquets de données initiaux séparés, pour chaque paquet de données initial, associer (214) un numéro unique au paquet de données initial, combiner le paquet de données initial avec son numéro unique associé pour former un paquet numéroté, calculer (215) un total de contrôle pour le paquet numéroté, combiner (216) le total de contrôle avec le paquet de données initial pour former un paquet de transmission qui ne comprend pas le numéro unique associé et transmettre (112) le paquet de transmission au second dispositif.

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