Method for detaching sectors in a flash EEPROM memory array
October 30, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSolid state memory for aircraft flight data recorder systems Security system for microcomputers Intelligent write in an EEPROM with data and erase check Method of preserving data storage in a postal meter Emulation device for converting magnetic disc memory mode signal from computer into semiconductor memory access mode signal for semiconductor memory Solid state electronic emulator of a multiple track motor driven rotating magnetic memory Solid state disk drive emulation Device and method for defect handling in semi-conductor memory Patent #: 5200959 InventorsApplicationNo. 969466 filed on 10/30/1992US Classes:711/103, Programmable read only memory (PROM, EEPROM, etc.)365/185.11, Bank or block architecture365/200, Bad bit365/218, Erase707/206, Garbage collection711/173, Memory partitioning714/710, Replacement of memory spare location, portion, or segment714/718Memory testingExaminersPrimary: Nguyen, Viet Q.Attorney, Agent or FirmForeign Patent References
International ClassesG11C 029/00G11C 011/34 AbstractA process for releasing sectors of a flash EEPROM memory array which includes a plurality of individually erasable blocks and stores sectors of data in such blocks with a header providing a logical sector number, an indication of validity of data stored, and an indication of whether data is stored with the header. The process includes the steps of finding the header of a sector with data to be released, setting the indication of validity of the data stored to indicate that the data is invalid, and writing a new header for the sector to a new position in the array without data and with an indication that data is not attached.Other References
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