Global Patent Index - EP 1053618 A1

EP 1053618 A1 20001122 - REAL-TIME ESTIMATION OF LONG RANGE DEPENDENT PARAMETERS

Title (en)

REAL-TIME ESTIMATION OF LONG RANGE DEPENDENT PARAMETERS

Title (de)

SCHÄTZUNG VON ENTFERNUNGSABHÄNGIGEN PARAMETERN IN ECHTZEIT

Title (fr)

ESTIMATION EN TEMPS REEL DE PARAMETRES GRANDE DISTANCE

Publication

EP 1053618 A1 20001122 (EN)

Application

EP 99904620 A 19990205

Priority

  • AU 9900077 W 19990205
  • AU PP169298 A 19980206

Abstract (en)

[origin: WO9940703A1] A method and apparatus of estimating long range dependent parameters, such as Hurst parameter H and size parameter cf, of a data stream in real-time. It includes inputting blocks of data of the data stream to a real-time discrete wavelet decomposition means (200) used to generate wavelet coefficients. A sum of squares of the coefficients at each scale is maintained together with the number of elements combined in the sum within processor means, such as a PC (304). When an estimation is required, averages of the squares of the coefficients are formed, followed by the calculation of a weighted linear regression using the averages leading to a determination of estimates of the parameters.

IPC 1-7

H04L 12/56; H04L 12/413; G06F 17/00

IPC 8 full level

H04L 12/54 (2013.01); H04L 12/851 (2013.01)

CPC (source: EP)

H04L 12/56 (2013.01); H04L 47/24 (2013.01)

Citation (search report)

See references of WO 9940703A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9940703 A1 19990812; AU PP169298 A0 19980305; CN 1296688 A 20010523; EP 1053618 A1 20001122

DOCDB simple family (application)

AU 9900077 W 19990205; AU PP169298 A 19980206; CN 99804819 A 19990205; EP 99904620 A 19990205