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. 27, 2025
Filed:
Aug. 26, 2021
Spreadtrum Communications (Shanghai) Co., Ltd., Shanghai, CN;
Huimin Zhang, Shanghai, CN;
Guoming Rao, Shanghai, CN;
Zhengfei Xiao, Shanghai, CN;
Bo Chen, Shanghai, CN;
SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
Disclosed are a system-on-chip and a method for managing a working mode thereof, and a smart wearable device. The method comprises the following steps: in a working mode, a master control subsystem controlling a functional subsystem to implement a corresponding function, and responding to interrupt signals of the functional subsystem and a secondary control subsystem; in a dormant mode, the secondary control subsystem responding to the interrupt signal of the functional subsystem, and the master control subsystem prohibiting responding to the interrupt signal of the functional subsystem; and in an ultra-low power consumption mode, the master subsystem being powered off, and the secondary control subsystem responding to the interrupt signal of the functional subsystem. In the present disclosure, on the premise of meeting a normal function requirement of the system-on-chip, the power consumption of the system-on-chip is reduced to the greatest possible extent.