Method and apparatus for compressing data sectors in storage drive

摘要

A storage drive includes a non-volatile semiconductor memory, and interface, a compression module, a sector module, and a control module. The interface is configured to receive first data sectors transmitted from a host to the storage drive. The compression module is configured to compress the first data sectors to generate second data sectors. Lengths of the second data sectors vary. The first sector module is configured to generate third data sectors by adding nuisance data to (i) the second data sectors, or (ii) an encrypted version of the second data sectors, wherein lengths of the third data sectors do not vary. The control module is configured to store the third data sectors in the non-volatile semiconductor memory.

主权项

1. A storage drive comprising:
a non-volatile semiconductor memory; an interface configured to receive a first plurality of data sectors transmitted from a host to the storage drive; a compression module configured to compress the first plurality of data sectors to generate a second plurality of data sectors, wherein lengths of the second plurality of data sectors vary, and wherein the second plurality of data sectors comprise a first data sector and a second data sector; a first sector module configured to generate a third plurality of data sectors by adding nuisance data to (i) the second plurality of data sectors, or (ii) an encrypted version of the second plurality of data sectors, wherein lengths of the third plurality of data sectors do not vary, and wherein the first sector module combines the first data sector and the second data sector of the second plurality of data sectors to generate one of the third plurality of data sectors; and a control module configured to store the third plurality of data sectors in the non-volatile semiconductor memory.