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:
May. 09, 2017
Filed:
Jun. 04, 2015
Apple Inc., Cupertino, CA (US);
Shu-Yi Yu, Sunnyvale, CA (US);
Jean-Didier Allegrucci, Sunnyvale, CA (US);
Timothy Paaske, Cupertino, CA (US);
Deniz Balkan, Santa Clara, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An apparatus may include first and second clock monitors. The first clock monitor may be configured to receive a first clock signal and assert a first signal if the frequency of the first clock signal is greater than a first upper threshold and assert a second signal if the frequency of the first clock signal is less than a first lower threshold. The second clock monitor may be configured to receive a second clock signal with a frequency higher than that of the first clock signal. The second clock monitor may be configured to compare the second clock signal, dependent upon the first clock signal, to second upper and lower thresholds and assert a third signal if the frequency of the second clock signal is greater than the second upper threshold and assert a fourth signal if the frequency is less than the second lower threshold.