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:
Feb. 08, 2011
Filed:
May. 30, 2007
Young-ho Shin, Yongin-si, KR;
Bang-won Lee, Yongin-si, KR;
Young-Ho Shin, Yongin-si, KR;
Bang-Won Lee, Yongin-si, KR;
ATLAB Inc., , KR;
Abstract
Provided are an apparatus using a battery and a method of detecting a time to change/recharge the battery in the apparatus. The apparatus includes: a battery for applying a battery voltage; a function unit for receiving the battery voltage to perform an intrinsic operation and cutting off the battery voltage; a voltage divider for dividing the battery voltage to generate a divided voltage; an analog-to-digital converter (ADC) for receiving the battery voltage to convert the divided voltage into a digital voltage signal in response to a measurement control signal before and after a low-power mode is finished; and a controller for receiving the battery voltage to generate a low-power signal for entering the low-power mode, enabling the measurement control signal in response to the low-power signal before and after the low-power mode is finished, and informing a user of a time to change/recharge the battery by detecting the remaining power of the battery using the digital voltage signals generated before and after the low-power mode is finished.