Method and device for compressing flow data
US9768801B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2017 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | May 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3064
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for compressing flow data, including: constructing multiple line segments according to flow data and a predefined maximum error that are acquired; obtaining a target piecewise linear function according to the multiple line segments, where the target piecewise linear function includes multiple linear functions, and an intersection set of value ranges of independent variables of every two linear functions among the multiple linear functions includes a maximum of one value; and outputting a reference data point according to the target piecewise linear function, where the reference data point includes a point of continuity and a point of discontinuity of the target piecewise linear function. In this way, a maximum error, a target piecewise linear function is further determined according to the multiple line segments, and a point of continuity and a point of discontinuity of the target piecewise linear function are used to represent compressed flow data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.