Systems and methods for sharing compression histories between multiple devices
US7532134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2007 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Apr 10, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3084
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Systems and methods of storing previously transmitted data and using it to reduce bandwidth usage and accelerate future communications are described. By using algorithms to identify long compression history matches, a network device may improve compression efficiently and speed. A network device may also use application specific parsing to improve the length and number of compression history matches. Further, by sharing compression histories and compression history indexes across multiple devices, devices can utilize data previously transmitted to other devices to compress network traffic. Any combination of the systems and methods may be used to efficiently find long matches to stored data, synchronize the storage of previously sent data, and share previously sent data among one or more other devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.