Lossless data compression
US10069511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2016 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Jan 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/6076
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of data compression includes obtaining binary sensor data having rows with multi-bit data samples. The rows are divided into data groups each including two or more samples. A precedent value is selected for the rows or respective precedent values are selected for each data group. A compressed row of compressed sensor data is generated from each row by calculating differences between the data sample and the precedent value for its associated data groups. A Compression Information Packet (CIP) is generated for each row including information for returning the binary sensor data that includes a compressed predicate indicating whether each data group is stored compressed, a data group size being a multi-bit value that stores a group size used for row compression, and a compressed word size that stores a dynamic range of the row compression. The compressed rows are stored as stored compressed data along with the CIPs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.