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:
Jan. 05, 2021
Filed:
Sep. 07, 2017
Amazon Technologies, Inc., Seattle, WA (US);
John Wang, Sunnyvale, CA (US);
Matthew Wong, Seattle, WA (US);
Marko Bundalo, San Jose, CA (US);
Yuting Yeh, Sunnyvale, CA (US);
Kamran Mohajer, Lake Sherwood, CA (US);
Vidhyananth Ramasamy Venkatasamy, San Jose, CA (US);
Girish Sidhmalswamy Ghongdemath, Santa Clara, CA (US);
Shuoqin Wang, Oak Park, CA (US);
Jason Allan Graetz, Calabasas, CA (US);
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
A portable electronic device determines a battery available power for the device's battery and manages device power usage based upon the battery available power. The device includes a battery and a controller. The controller is configured to receive a first voltage value for the battery at a first time, a first current value for the battery, a second voltage value for the battery at a second time, and a second current value for the battery. It is determined that a time difference between the first time and the second time exceeds a predetermined time threshold. An estimated resistance of the battery is determined based at least on a first difference between the first current value and the second current value and a second difference between the first voltage value and the second voltage value. Real-time power usage of the device is controlled based on the estimated resistance of the battery.