Method for compressing and restoring time series data
US10819368B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 22, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Aug 22, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/42
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for compressing time series data includes: reading original data including time series data; measuring a unit of the original data; determining a threshold for determining a range allowing for a difference between compressed data and the original data; performing longest distance downsampling to preserve an abnormal point of the original data; storing a start point and an end point of the original data; performing drop-out on the longest distance downsampling result, wherein the drop-out is not performed for the start point and the end point; and if the number of values of the original data is smaller than α times the original data length, storing at least one of the values of the original data as a reference point, wherein α is a real number having a value between 0 and 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.