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. 28, 2021
Filed:
Mar. 22, 2019
Shenzhen Fugui Precision Ind. Co., Ltd., Shenzhen, CN;
Duo Qiu, Shenzhen, CN;
Shenzhen Fugui Precision Ind. Co., Ltd., Shenzhen, CN;
Abstract
A system for detecting power failure in a dual processing system includes a first central processing unit (CPU), a second CPU, a power controlling unit, and a complex programmable logic device (CPLD). The power controlling unit is electrically coupled to the first CPU and the second CPU and the CPLD. The CPLD can determine a power failure occurring in relation to the first CPU and the second CPU. If power to the first CPU does not fail but power to the second CPU does fail, the CPLD controls the power controlling unit to stop supplying power for the second CPU only and make a certain number of power restart attempts. A method for detecting a power failure is also provided.