Compression and decompression of time series data
US11190206B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2017 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Sep 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The method involves sequentially encoding the plurality of data packets, which involves, for a data packet, obtaining a reference data packet, obtaining a mask packet indicative of which of the bits in the data packet are predictable and which of the bits in the data packet are not predictable obtaining change history data indicative of previously changed bits of the mask packet, determining an updated mask packet based on the mask packet, the data packet, and the reference data packet, determining updated change history data based on the change history data, the mask packet, and the updated mask packet, determining, as unpredictable bits, all those bits of the data packet that are indicated as not predictable by the updated mask packet, and generating an encoded data packet including a representation of the updated change history data and a representation of values of the unpredictable bits of the data packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.