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:
Jul. 16, 2019
Filed:
Mar. 08, 2017
Applicant:
Mstar Semiconductor, Inc., Hsinchu Hsien, TW;
Inventor:
Meng-Tse Weng, Hsinchu Hsien, TW;
Assignee:
MSTAR SEMICONDUCTOR, INC., Hsinchu Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/21 (2006.01); H03K 5/1252 (2006.01); H03K 5/131 (2014.01); H03K 21/02 (2006.01); H03K 5/00 (2006.01);
U.S. Cl.
CPC ...
H03K 5/1252 (2013.01); H03K 5/131 (2013.01); H03K 19/21 (2013.01); H03K 21/026 (2013.01); H03K 2005/00058 (2013.01);
Abstract
A frequency adjusting device includes a voltage droop detector and a frequency divider. The voltage droop detector compares a supply voltage with a lower threshold voltage to output a comparison result. When the supply voltage is greater than the threshold voltage, the frequency divider outputs a result of dividing a basic clock signal by a first value as a clock signal. When the supply voltage is smaller than the threshold voltage, the frequency divider outputs a result of dividing the basic clock signal by a second value as the clock signal.