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. 09, 2014
Filed:
May. 06, 2011
Yen-lin Lee, Hsinchu Hsien, TW;
Shan-cheng Sun, Hsinchu Hsien, TW;
Chih-cheng Ku, Hsinchu Hsien, TW;
He-ge Chen, Hsinchu Hsien, TW;
Yen-Lin Lee, Hsinchu Hsien, TW;
Shan-Cheng Sun, Hsinchu Hsien, TW;
Chih-Cheng Ku, Hsinchu Hsien, TW;
He-Ge Chen, Hsinchu Hsien, TW;
MStar Semiconductor, Inc., Hsinchu Hsien, TW;
Abstract
A portable electronic device having automatic power supply mode switching is provided. The portable electronic device includes a micro-sensor and a control circuit. The control circuit controls operations of the electronic device, the micro-sensor senses whether the electronic device is carried or worn by a user. When the electronic device operates in a normal mode, and if the electronic device is not carried or worn for a time longer than a buffer period of a predetermined interval, the control circuit switches to a sleep mode, which results in lower power consumption.