Method and apparatus for retaining flash block structure data du

Details Method and apparatus for retaining flash block structure data du Method and apparatus for retaining flash block structure data du

1993-02-19

1996-12-03

Rudolph, Rebecca L.

395481, 395492, G06F 1200

Patent

active

055817238

ABSTRACT:
A method for reliably storing management data in a flash EEPROM memory array, which array is divided into a plurality of individually-erasable blocks of memory cells and in which each of the blocks of memory cells has stored thereon data regarding management of the array during a cleanup process in which valid data stored in a first block is written to another block of the array, and then the first block is erased. The process includes the steps of storing data regarding management of the array from the first block in random access memory and, in an enhanced process, on another block before erasure of the first block. The data may then be rewritten to the first block after the erase. With the enhanced process, a special identification is provided to the data regarding the management of the array stored on another block which is outside the normal identification range for the host computer so that the specially identified data is not lost during a power loss during an erase process and may be detected after power is restored to the system.

REFERENCES:
patent: 4456971 (1984-06-01), Fukuda et al.
patent: 4511964 (1985-04-01), Georg et al.
patent: 4642759 (1987-02-01), Foster
patent: 4644494 (1987-02-01), Muller
patent: 4763305 (1988-08-01), Kuo
patent: 4802117 (1989-01-01), Chrosny et al.
patent: 4896262 (1990-01-01), Wayama et al.
patent: 4958315 (1990-09-01), Balch
patent: 4984149 (1991-01-01), Iwashita et al.
patent: 5012425 (1991-04-01), Brown
patent: 5047989 (1991-09-01), Canepa et al.
patent: 5053990 (1991-10-01), Kreifels et al.
patent: 5070474 (1991-12-01), Tuma et al.
patent: 5077737 (1991-12-01), Leger et al.
patent: 5101490 (1992-03-01), Getson, Jr. et al.
patent: 5111385 (1992-05-01), Hattori
patent: 5131089 (1992-07-01), Cole
patent: 5193184 (1993-03-01), Belsan et al.
patent: 5199033 (1993-03-01), McGeoch et al.
patent: 5200959 (1993-04-01), Gross et al.
patent: 5210866 (1993-05-01), Milligan et al.
patent: 5224070 (1993-06-01), Fandrich et al.
patent: 5226168 (1993-07-01), Kobayashi et al.
patent: 5268870 (1993-12-01), Harari
patent: 5301288 (1994-04-01), Newman et al.
patent: 5388083 (1995-02-01), Assar et al.
patent: 5404485 (1995-04-01), Ban
patent: 5459850 (1995-10-01), Clay et al.
Robinson, Kurt, "Trends in Flash Memory System Design", Wescon Conference Record, Nov. 1990, pp. 468-472.

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