Portable data storage device and method of accessing data thereof
US7401195B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2004 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Jan 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A portable data storage device includes a control unit coupled via a predetermined interface with a computer having an operating system with user authority limits, and a memory divided into a segment I for storing related applications, a public segment II for temporarily storing instructions and data, and a hidden segment III for saving client data. In a method of accessing data via the portable data storage device, when the computer is to write data into or read data from the segment III, the data to be written or read is first temporarily stored in the segment II, and specific read or write instructions for a read/write level application interface are written into the segment II by the applications in the segment I and executed, so as to complete data exchange and access between the portable data storage device and the computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.