Symbol frequency leveling in a storage system

Details Symbol frequency leveling in a storage system Symbol frequency leveling in a storage system

2005-09-06

2005-09-06

Chace, Christian P. (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C365S202000, C365S227000, C341S050000, C380S210000, C713S320000

Reexamination Certificate

active

06941412

ABSTRACT:
Methods and apparatus for transforming data into a format which may be efficiently stored in a non-volatile memory are disclosed. According to one aspect of the present invention, a method for storing information of a first data format in a memory system includes generating statistics associated with the first data format, and transforming the information from the first data format to a second data format using the statistics. Once the information is transformed into the second data format, the information is stored into a memory. Storing the information in the second data format in the memory includes storing an identifier that identifies a transformation used to transform the information to the second data format. In one embodiment, costs associated with storing the information in the second data format are less than or equal to costs associated with storing the information in the first data format.

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International Search Report issued Dec. 12, 2003 in International Appln. No. PCT/US03/27322, 4 pages.

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