Adaptive data compression
US9515679B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2015 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | May 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/6076
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods, computing systems and computer program products implement embodiments of the present invention that include accessing, from a sequence of multiple data segments including a first data segment at a first location in the sequence followed by additional data segments having respective additional locations in the sequence, a current given data segment in the sequence. In some embodiments, data to be compressed is received and partitioned into the multiple data segments. The current data segment is compressed the current data segment using a first minimal match length, and a compression ratio is calculated for the compressed current data segment. Based on the compression ratio and the respective location of the current data segment, a second minimal match length is selected, a subsequent data segment that immediately follows the current data segment in the sequence is accessed, and the subsequent data segment is compressed using the second minimal match length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.