Invention Application
US20130111256A1 DRIFT DETECTION IN TIMING SIGNAL FORWARDED FROM MEMORY CONTROLLER TO MEMORY DEVICE
有权
从存储器控制器向存储器件转发的定时信号中的DRIFT检测
- Patent Title: DRIFT DETECTION IN TIMING SIGNAL FORWARDED FROM MEMORY CONTROLLER TO MEMORY DEVICE
- Patent Title (中): 从存储器控制器向存储器件转发的定时信号中的DRIFT检测
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Application No.: US13656498Application Date: 2012-10-19
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Publication No.: US20130111256A1Publication Date: 2013-05-02
- Inventor: Jun Kim , Pak Shing Chau , Wayne S. Richardson
- Applicant: Rambus Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: RAMBUS INC.
- Current Assignee: RAMBUS INC.
- Current Assignee Address: US CA Sunnyvale
- Main IPC: G06F1/06
- IPC: G06F1/06
Abstract:
A memory system in which a timing drift that would occur in distribution of a first timing signal for data transport in a memory device is determined by measuring the actual phase delays occurring in a second timing signal that has a frequency lower than that of the first timing signal and is distributed in one or more circuits mimicking the drift characteristics of at least a portion of distribution of the first timing signal. The actual phase delays are determined in the memory device and provided to a memory controller so that the phases of the timing signals used for data transport may be adjusted based on the determined timing drift.
Public/Granted literature
- US09235537B2 Drift detection in timing signal forwarded from memory controller to memory device Public/Granted day:2016-01-12
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