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:
Apr. 09, 2019
Filed:
Jun. 14, 2017
Purdue Research Foundation, West Lafayette, IN (US);
Ashish Ranjan, Lafayette, IN (US);
Swagath Venkataramani, Yonkers, NY (US);
Zoha Pajouhi, Portland, OR (US);
Rangharajan Venkatesan, Santa Clara, CA (US);
Kaushik Roy, West Lafayette, IN (US);
Anand Raghunathan, West Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
An approximate cache system is disclosed. The system includes a quality aware cache controller (QACC), a cache, a quality table configured to receive addresses and a quality specification from the processor associated with each address and further configured to provide the quality specification for each address to the QACC, wherein the QACC controls approximation is based on one or more of i) approximation through partial read operations; ii) approximation through lower read currents; iii) approximation through skipped write operations; iv) approximation through partial write operations; v) approximations through lower write duration; vi) approximation through lower write currents; and vii) approximations through skipped refreshes.