Invention Grant
US07900100B2 Uncorrectable error detection utilizing complementary test patterns
失效
使用互补测试模式的不正确的错误检测
- Patent Title: Uncorrectable error detection utilizing complementary test patterns
- Patent Title (中): 使用互补测试模式的不正确的错误检测
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Application No.: US11677214Application Date: 2007-02-21
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Publication No.: US07900100B2Publication Date: 2011-03-01
- Inventor: Marc A. Gollub
- Applicant: Marc A. Gollub
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Dillon & Yudell LLP
- Main IPC: G11C29/00
- IPC: G11C29/00

Abstract:
A system, method and program product for utilizing error correction code (ECC) logic to detect multi-bit errors. In one embodiment, a first test pattern and a second test pattern are applied to a set of hardware bit positions. The first and second patterns are multiple logic level patterns and the second test pattern is the logical complement of the first test pattern. The first and second test patterns are utilized by the ECC logic to detect correctable errors having n or fewer bits. One or more bit positions of a first correctable error occurring responsive to applying the first test pattern are determined and one or more bit positions of a second correctable error occurring responsive to applying the second test pattern are determined. The determined bit positions of the first and second correctable errors are processed to identify a multiple-bit error within the set of hardware bit positions.
Public/Granted literature
- US20080201620A1 METHOD AND SYSTEM FOR UNCORRECTABLE ERROR DETECTION Public/Granted day:2008-08-21
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