Refresh-ahead and burst refresh preemption technique for managing DRAM in computer system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 25, 1999
Grant Date -
N/A
app pub date -
Apr 7, 1997
filing date -
Apr 7, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A computer system refreshes dynamic memory in a burst, but allows other memory access requests to preempt a burst refresh before the burst completes. In another aspect, once a burst refresh begins, it is allowed to continue for a number of refresh cycles which is greater than the number of refresh cycles then due; that is, until a time when the number of refresh cycles due is negative. This technique, referred to herein as 'refresh-ahead', effectively helps to shift memory refresh activity into periods of bus time which would otherwise be idle.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully