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. 21, 2017
Filed:
Aug. 31, 2015
Applicant:
SK Hynix Memory Solutions Inc., San Jose, CA (US);
Inventors:
Chun-Ju Shen, Santa Clara, CA (US);
Jenn-Gang Chern, Redwood City, CA (US);
Assignee:
SK hynix memory solutions Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/08 (2006.01); H03L 7/081 (2006.01); H03L 7/02 (2006.01); H03K 19/21 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0814 (2013.01); H03K 19/21 (2013.01); H03L 7/02 (2013.01);
Abstract
An asynchronous digital logic is used to provide a pulse. A pulse train is filtered to determine an analog measurement based at least in part on the duty cycle of the pulse. The analog measurement is compared with a tunable reference associated with a programmable locked delay for the DLL. A digital code is sequenced based at least in part on the comparison. A digitally controlled delay line is programmed based at least in part on the digital code.