Method and apparatus for data transfer
US7558198B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2002 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jun 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/329
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A user will receive a variation of a particular file depending upon the type of network the user is currently accessing. More particularly, a user will typically receive a smaller version of a file when the user is accessing a low-bandwidth (low data rates) network, and can choose to receive a larger version of the file when the user accesses a high-bandwidth (high data rates) network. When several networks are available to the user either simultaneously or sequentially, the user will receive the optimum file version based on cost and quality preferences in the former case and may receive multiple versions of the file in the later case, each increasing in quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.