Process and device for the approximate calculation of the...

Details Process and device for the approximate calculation of the... Process and device for the approximate calculation of the...

G - Physics

06

F

G06F 7/48 (2006.01) H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2260084

The method is applicable for the approximative computation of the exponential mean of a sequence of un coded numbers in floating point format used for sending cell rate information in ATM networks, each number being defined by means of an exponent en and a mantissa mn by a relationship in the form un = 2en.(1 + mn/512). It consists in approximating the exponential mean by the value of the code associated with the exponential mean of code-words Un = 512.en + mn. The invention is applicable to ATM commutators and ATM terminals.

Le procédé s'applique au calcul approché de la moyenne exponentielle d'une suite de nombre u¿n? codés dans un format à virgule flottante utilisé pour convoyer certaines informations de débit dans des réseaux ATM, chaque nombre étant défini à l'aide d'un exposant e¿n? et d'une mantisse m¿n? par une relation de la forme u¿n? = 2?e¿¿n?.(1 + m¿n?/512). Il consiste à approximer la moyenne exponentielle par la valeur du code associée à la moyenne exponentielle des mots-code U¿n? = 512.e¿n? + m¿n?. Application: commutateurs ATM, terminaux ATM.

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