Invention Grant
- Patent Title: Systems and methods for retrieving data
- Patent Title (中): 用于检索数据的系统和方法
-
Application No.: US13116407Application Date: 2011-05-26
-
Publication No.: US08930771B2Publication Date: 2015-01-06
- Inventor: Tieniu Li
- Applicant: Tieniu Li
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Knobbe Martens Olson & Bear LLP
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G11C16/34 ; G06F11/07 ; G06F11/10

Abstract:
Apparatus and methods, such as those that read data from non-volatile integrated circuit memory devices, such as NAND flash. For example, disclosed techniques can be embodied in a device driver of an operating system. Errors are tracked during read operations. If sufficient errors are observed during read operations, the block is then retired when it is requested to be erased or a page of the block is to be written. One embodiment is a technique to recover data from uncorrectable errors. For example, a read mode can be changed to a more reliable read mode to attempt to recover data. One embodiment further returns data from the memory device regardless of whether the data was correctable by decoding of error correction code data or not.
Public/Granted literature
- US20110239061A1 SYSTEMS AND METHODS FOR RETRIEVING DATA Public/Granted day:2011-09-29
Information query