Memory control apparatus, memory control method and program

Details Memory control apparatus, memory control method and program Memory control apparatus, memory control method and program

2005-09-06

2011-11-15

Ellis, Kevin (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S154000, C711S165000

Reexamination Certificate

active

08060684

ABSTRACT:
Memory control apparatus, memory control method, and program are provided. The present invention provides a preparatory process for determining whether or not a data-updating process to update data of a flash memory or a data-writing process to write new data into the memory has been completed normally. A data-updating process to update data stored in a specific block is carried out as a process including alternate-block processing to replace the specific block with another block referred to as an alternate block. In the current data-updating process, the alternate block is examined to determine whether or not data has been erased from the alternate block. If data has been erased from the alternate block, the preceding data-updating or data-writing process is determined to be normal. By virtue of a property exhibited by the contents of the reserved-block address, the reserved-block address needs to be saved in the flash memory only once during a data-updating or data-writing process.

REFERENCES:
patent: 5581723 (1996-12-01), Hasbun et al.
patent: 6675281 (2004-01-01), Oh et al.
patent: 6763424 (2004-07-01), Conley
patent: 6795890 (2004-09-01), Sugai et al.
patent: 2004/0193781 (2004-09-01), Chung et al.

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