Method and apparatus for storing items in flash memory

Details Method and apparatus for storing items in flash memory Method and apparatus for storing items in flash memory

1997-02-13

1998-05-05

Nelms, David C.

Static information storage and retrieval

Floating gate

Particular biasing

36518529, 36518508, G11C 1134

Patent

active

057485372

ABSTRACT:
An electronic device (100) stores an item (135) including bits of information. The electronic device (100) includes a flash memory (125) that stores the item (135) in binary form and a flash manager (120) that receives a modified item to be stored in the same location as the item (135). The flash manager (120) determines whether replacing the item (135) with the modified item involves any bit transitions from zero to one. When no bit transitions from zero to one are involved, the flash manager (120) changes selected bits from one to zero to replace the item (135) with the modified item in place, without copying any stored information to a different memory location, such as a different region of the flash memory or a different memory device (115).

REFERENCES:
patent: 5390148 (1995-02-01), Saito
patent: 5544119 (1996-08-01), Wells et al.
patent: 5619452 (1997-04-01), Miyauchi
patent: 5627783 (1997-05-01), Miyauchi

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