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:
Mar. 19, 2019
Filed:
Jul. 22, 2015
Futurewei Technologies, Inc., Plano, TX (US);
Wei Chen, San Diego, CA (US);
Tongzeng Yang, San Diego, CA (US);
Futurewei Technologies, Inc., Plano, TX (US);
Abstract
The present disclosure describes methods, systems, and computer program products for a multiple-processor system. The multiple-processor system includes a plurality of central processing unit (CPU) cores. Each of the plurality of CPU cores is configured to operate in at least one of a plurality of CPU states. The plurality of CPU states includes a low-voltage memory retention (NAP) state, an active state, and a shut-off state. The NAP state includes a sleep state that retains state memory. The multiple-processor system also includes a voltage regulator that is configured to provide a NAP voltage to the plurality of CPU cores. The NAP voltage is sufficient for at least one of the plurality of CPU cores to retain state information and the NAP voltage is lower than an active state voltage. The multiple-processor system further includes a plurality of state control switches. Each of the plurality of state control switches connects the voltage regulator to one of the plurality of CPU cores.