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:
Dec. 05, 2023
Filed:
Oct. 25, 2019
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventors:
Dae-Ho Yun, Gyeonggi-do, KR;
Seong-Jin Kim, Gyeonggi-do, KR;
Assignee:
SK hynix Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 23/165 (2006.01); H03H 11/04 (2006.01);
U.S. Cl.
CPC ...
G01R 23/165 (2013.01); H03H 11/04 (2013.01);
Abstract
A frequency detection circuit may include a pulse generator configured to generate a pulse signal having a pulse width proportional to a cycle of a periodic wave to be measured; a low pass filter configured to selectively allow the pulse signal to pass therethrough; and a determination circuit configured to generate a frequency detection signal based on the pulse signal having passed through the low pass filter.