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Scheduling of housekeeping operations in flash memory systems

  • US 20060161728A1
  • Filed: 12/19/2005
  • Published: 07/20/2006
  • Est. Priority Date: 01/20/2005
  • Status: Active Grant
First Claim
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1. A method of operating an erasable and re-programmable non-volatile memory system, which comprises, in response to receiving a command from outside the memory system having a time budget for its execution:

  • perform any function necessary to execute the command, assert a busy signal outside of the memory system for a time extending beyond that utilized to perform said any necessary function while remaining within the time budget, and perform during the extended busy signal time at least a portion of one housekeeping operation within the memory system that is unnecessary to execute the received command.

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