Storage device and garbage collection method thereof
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United States of America Patent
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Jul 21, 2020
Grant Date -
Dec 28, 2017
app pub date -
Jun 28, 2016
filing date -
Jun 30, 2015
priority date (Note) -
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Abstract
A memory controller is for controlling operations of a nonvolatile memory including a first memory block group for storing a first type of data and a second memory block group for storing a second type of data. The memory controller includes a garbage collection management unit configured to execute a garbage collection policy in which a first garbage collection criteria is applied to the first memory block group, and a second garbage collection criteria is applied to the second memory block group, where first garbage collection criteria is different than the second garbage collection criteria.
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