Patent · US Active

Time tracking with patrol scrub

US10310989B2 · kind B2 · utility

1Cited by

4References

24Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Philip Hillier · Rochester, US
Jeffrey W. Ryden · Kirkland, US
Muthukumar P. Swaminathan · Folsom, US
Zion S. Kwok · Burnaby, CA
Kunal A. Khochare · Folsom, US
Richard P. Mangold · Forest Grove, US
Prashant S. Damle · Portland, US

Key dates

Filing date	Sep 29, 2017
Grant date	Jun 4, 2019
Priority date	—
Expiry date	Nov 12, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/7209
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

One embodiment provides a memory controller. The memory controller includes a memory controller memory; a timestamp circuitry and a demarcation voltage (VDM) selection circuitry. The timestamp circuitry is to capture a current timer index from a timer circuitry in response to an initiation of a periodic patrol scrub and to compare the current timer index to a stored timestamp. The VDM selection circuitry is to update a state of a sub-block of a memory array, if the state is less than a threshold and a difference between the current timer index and the stored timestamp is nonzero. The timestamp circuitry is further to store the current timer index as a new timestamp.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.