A BARCODE FOR A BEVERAGE PREPARATION CAPSULE

A beverage preparation system comprising : (i) a capsule (1 1) with side (16), bottom (18) and top (14) walls, said capsule having a shape that is substantially symmetrical around a vertical axis, and said capsule is suitable for containing a beverage preparation ingredient to be dissolved, and/or infused, and/or extracted under pressure, by action of a fluid circulating into said capsule through said ingredient, (ii) a beverage preparation machine (1 ) suitable for receiving said capsule (11), and circulating said fluid into said capsule, (iii) optionally a capsule holder (9) for holding said capsule (1 1), at least at the time said capsule is disposed into said machine, characterized in that : the machine (1) comprises a linear barcode reader (21) suitable for reading a linear barcode sequence (25) contained in a segment S having a segment length LR, said linear barcode reader (21) being disposed in the machine such that it can read a barcode printed on the capsule while said capsule is being inserted inside said machine, and the capsule (1 1) comprises a barcode sequence (25) that is repeatedly printed along a peripheral path of the capsule, each sequence being disposed in an arc having a linear projected length Ls that is inferior to LR and said sequence (25) is composed of dots (26) spaced apart from one another along said arc, such that their projected point images along a linear segment are also spaced apart. L'invention porte sur un système de préparation de boisson comprenant: (i) une capsule (11) ayant des parois latérale (16), inférieure (18) et supérieure (14), ladite capsule ayant une forme qui est sensiblement symétrique autour d'un axe vertical, et ladite capsule étant appropriée pour contenir un ingrédient de préparation de boisson à dissoudre, et/ou à infuser, et/ou à extraire sous pression, par action d'un fluide circulant dans ladite capsule à travers ledit ingrédient, (ii) une machine de préparation de boisson (1) appropriée pour recevoir ladite capsule (11), et faire circuler ledit fluide dans ladite capsule, (iii) éventuellement, un support de capsule (9) pour supporter ladite capsule (11), au moins au moment où ladite capsule est disposée dans ladite machine, caractérisé en ce que : la machine (1) comprend un lecteur de code à barres linéaire (21) approprié pour lire une séquence de codes à barres linéaires (25) contenus dans un segment S ayant une longueur de segment LR, ledit lecteur de code à barres linéaire (21) étant disposé dan