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:
Oct. 25, 2011
Filed:
May. 21, 2010
Ryan Andrew Jurasek, S. Burlington, VT (US);
Bret Roberts Dale, Jericho, VT (US);
Darin James Daudelin, Williston, VT (US);
Dave Eugene Chapmen, Shelburne, VT (US);
Ryan Andrew Jurasek, S. Burlington, VT (US);
Bret Roberts Dale, Jericho, VT (US);
Darin James Daudelin, Williston, VT (US);
Dave Eugene Chapmen, Shelburne, VT (US);
Nanya Technology Corp., Kueishan, Tao-Yuan Hsien, TW;
Abstract
A method of detecting a minimum operational frequency includes: generating a signal that becomes an oscillating signal at a first predetermined frequency; and generating a logic signal to provide a level transition when a frequency of the oscillating signal reaches a second predetermined frequency corresponding to the minimum operational frequency. The logic signal is generated by: providing a transistor that is activated at the second predetermined frequency; providing a capacitor; storing charges in the capacitor when the oscillating signal is below the second predetermined frequency; discharging the capacitor when the transistor is activated by the oscillating signal; and outputting the logic signal when the capacitor discharges.