Global Patent Index - EP 1053618 A1

EP 1053618 A1 2000-11-22 - 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 (EN)

Application

EP 99904620 A

Priority

  • AU 9900077 W
  • AU PP169298 A

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 (main, further and additional classification)

H04L 12/56; G06F 17/00; H04L 12/413

IPC 8 full level (invention and additional information)

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

CPC (invention and additional information)

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

EPO simple patent family

WO 9940703 A1 19990812; AU PP169298 D0 19980305; CN 1296688 A 20010523; EP 1053618 A1 20001122

INPADOC legal status


2003-12-03 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030903

2000-11-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000824

2000-11-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE