Patent ID: 6301578
Filing Date: 2001-10-09
Classification: G06F,H03M,Y10S

Abstract:
A method of compressing time series data comprising the steps of:identifying a plurality of variables for which variable values as a function of time are desired;acquiring variable values which are specific to said variables, including forming time series data for said plurality of variables, said time series data being representative of associations between said variable values and time values, wherein content of said time series data is formatted such that each said variable value is identifiable with said variable to which said variable value is specific;sorting said time series data on a basis of said variables, thereby providing a plurality of sorted variables;separating said time series data, for each of said plurality of sorted variables, into a distinct series of time values and a distinct series of variable values;compressing said series of time values separate from said series of variable values for each of said plurality of variables;compressing said series of variable values separate from said series of time values for each of said plurality of variables; andwriting said compressed series of time values and said compressed series of variable values to a memory for each of said plurality of variables.