Data storage device with multi-access capabilities
First Claim
1. A data storage device comprising:
- (a) a nonvolatile memory;
(b) a microcontroller for accessing said nonvolatile memory according to commands received from a host of the data storage device;
(c) a USB interface for operationally connecting the data storage device to said host;
(d) a USB storage device sub-interface for passing said commands from said USB interface to said microcontroller according to a USB storage device protocol; and
(e) a USB CD sub-interface, different from said USB storage device sub-interface, for passing said commands from said USB interface to said microcontroller according to a USB CD protocol.
3 Assignments
0 Petitions
Accused Products
Abstract
A peripheral device of a host computer includes a microcontroller and two virtual devices. The first virtual device passes, to the microcontroller, commands of a first command set from any user of the host computer and preferably also commands of a second command set from only privileged users of the host computer. The second virtual device passes, to the microcontroller, commands of the second set from any user of the host computer. In one physical implementation of the invention, the two virtual devices are implemented as separate physical devices, and the second device is connected to an interface to the host computer only if the user is not privileged. In another physical implementation of the invention, the two virtual devices are implemented in a common physical device, and a sector of a memory of the peripheral device is reserved for handling commands of the second set from non-privileged users.
126 Citations
16 Claims
-
1. A data storage device comprising:
-
(a) a nonvolatile memory; (b) a microcontroller for accessing said nonvolatile memory according to commands received from a host of the data storage device; (c) a USB interface for operationally connecting the data storage device to said host; (d) a USB storage device sub-interface for passing said commands from said USB interface to said microcontroller according to a USB storage device protocol; and (e) a USB CD sub-interface, different from said USB storage device sub-interface, for passing said commands from said USB interface to said microcontroller according to a USB CD protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A data storage device comprising:
-
(a) a nonvolatile memory; (b) a microcontroller for accessing said nonvolatile memory according to commands received from a host of the data storage device; (c) a USB interface for operationally connecting the data storage device to said host; (d) a USB HID sub-interface for passing said commands from said USB interface to said microcontroller according to a USB HID protocol; and (e) a second USB sub-interface, different from said USB HID sub-interface, for passing said commands from said USB interface to said microcontroller according to a second USB protocol different from said USB HID protocol. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
Specification