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:
Sep. 01, 2020
Filed:
Mar. 06, 2020
Artery Technology Co., Ltd., Chongqing, CN;
Artery Technology Co., Ltd., Chongqing, CN;
Abstract
A clock fail detector is provided. The clock fail detector includes a timing control signal generator and a clock fail detection module, which may generate control signals according to a clock signal and perform clock fail detection according to the control signals, respectively. The clock fail detection module may comprise first integrators, sample and hold circuits, a second integrator and a comparator. The first integrator may convert previous periods of the clock signal into reference voltages according to ping pong mode control signals within the control signals, respectively. The sample and hold circuits may sample and hold the reference voltages according to the ping pong mode control signals. The second integrator may convert a current clock period of the clock signal into a ramp signal. The comparator may compare the ramp signal with a reference voltage to generate a comparison result signal for indicating whether the clock signal is normal.