Using an add-on storage device for extending the storage capacity of a storage device in a host device
US8296495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Dec 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0615
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage device with a memory, a controller, a storage device interface and a host interface, and a method of data transfer to and from a storage device are provided. The storage device is operative to connect with a host device and the storage device interface is operative to couple with an add-on memory. When the host interface is connected to a host device, the controller is configured to receive a data transfer command specifying a memory address from the host interface; and if the memory address is beyond the address space of the memory, to route the data transfer command to the storage device interface for access to the add-on memory. The address space of the memory and an address space of the add-on memory are addressed as one integral address space transparently to the host.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.