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:
Mar. 05, 2019
Filed:
Mar. 23, 2018
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventors:
Assignee:
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/16 (2006.01); H03K 19/003 (2006.01); H03K 19/00 (2006.01); H04L 25/02 (2006.01); G11C 5/14 (2006.01); G11C 7/10 (2006.01); H03K 19/0175 (2006.01); G11C 7/22 (2006.01); H03K 17/693 (2006.01); G11C 11/406 (2006.01);
U.S. Cl.
CPC ...
H03K 19/0005 (2013.01); G11C 5/147 (2013.01); G11C 7/1051 (2013.01); G11C 7/1093 (2013.01); G11C 7/222 (2013.01); G11C 11/40615 (2013.01); H03K 17/693 (2013.01); H03K 19/017545 (2013.01); H04L 25/0278 (2013.01); G11C 2207/2254 (2013.01);
Abstract
Apparatuses, systems, methods, and computer program products are disclosed for on-die impedance calibration. A calibration circuit determines a digital compensation value for an input/output driver. A calibration adjustment circuit provides a digital compensation value to a calibration circuit to produce an analog output corresponding to the digital compensation value. A feedback circuit provides an analog output as feedback to a calibration circuit to produce an analog compensation value.