Invention Grant
US09568942B2 Drift adjustment in timing signal forwarded from memory controller to memory device based on a detected phase delay occurring on a second timing signal with a different frequency
有权
基于在具有不同频率的第二定时信号上发生的检测到的相位延迟，从存储器控制器向存储器件转发的定时信号中的漂移调整
- Patent Title: Drift adjustment in timing signal forwarded from memory controller to memory device based on a detected phase delay occurring on a second timing signal with a different frequency
- Patent Title (中): 基于在具有不同频率的第二定时信号上发生的检测到的相位延迟，从存储器控制器向存储器件转发的定时信号中的漂移调整
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Application No.: US14961077Application Date: 2015-12-07
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Publication No.: US09568942B2Publication Date: 2017-02-14
- 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
- Agency: Fenwick & West LLP
- Main IPC: G06F1/00
- IPC: G06F1/00 ; G06F1/08 ; H03L7/099 ; H04L7/00 ; H03L7/081 ; H03L7/07 ; H04L7/10 ; G06F13/16 ; G06F1/10
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
- US20160161977A1 DRIFT DETECTION IN TIMING SIGNAL FORWARDED FROM MEMORY CONTROLLER TO MEMORY DEVICE Public/Granted day:2016-06-09
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