Invention Grant
- Patent Title: Adaptive memory scrub rate
- Patent Title (中): 自适应记忆擦除率
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Application No.: US13551451Application Date: 2012-07-17
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Publication No.: US08443262B2Publication Date: 2013-05-14
- Inventor: John A. Foley
- Applicant: John A. Foley
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Patterson & Sheridan, LLP
- Main IPC: G11C29/42
- IPC: G11C29/42 ; G11C29/54

Abstract:
In one embodiment an example apparatus includes a memory with an error detection system (EDS) that detects an error event in the memory. The error event involves at least one bit in the memory changing state erroneously. The apparatus also includes a scrub logic to scrub the memory and correct memory errors (e.g., bit errors). The apparatus also includes a scrub rate adaptive logic to selectively control a memory scrub frequency associated with the scrub logic where the control is based, at least in part, on a number of error events detected by the EDS during an interval of time. A memory scrub frequency is the rate that a memory is periodically scrubbed to remove errors.
Public/Granted literature
- US20120284575A1 ADAPTIVE MEMORY SCRUB RATE Public/Granted day:2012-11-08
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