The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2019
Filed:
Sep. 29, 2017
Intel Corporation, Santa Clara, CA (US);
Philip Hillier, Rancho Santa Margarita, CA (US);
Jeffrey W. Ryden, Tustin, CA (US);
Muthukumar P. Swaminathan, Folsom, CA (US);
Zion S. Kwok, Vancouver, CA;
Kunal A. Khochare, Folsom, CA (US);
Richard P. Mangold, Forest Grove, OR (US);
Prashant S. Damle, Portland, OR (US);
Intel Corporation, Santa Clara, CA (US);
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.