US 11,844,019 B2
Electronic systems and electronic devices
Sung-taek Hong, Seoul (KR); Kwan-yong Jin, Hwaseong-si (KR); Byoung-sul Kim, Suwon-si (KR); and Sang-hoon Lee, Hwaseong-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jan. 25, 2021, as Appl. No. 17/157,079.
Application 17/157,079 is a division of application No. 15/332,606, filed on Oct. 24, 2016, granted, now 10,904,833, issued on Jan. 26, 2021.
Claims priority of application No. 10-2015-0161048 (KR), filed on Nov. 17, 2015.
Prior Publication US 2021/0144642 A1, May 13, 2021
Int. Cl. H04W 52/02 (2009.01); H02J 7/00 (2006.01); H01M 10/44 (2006.01)
CPC H04W 52/0229 (2013.01) [H04W 52/0235 (2013.01); Y02D 30/70 (2020.08)] 20 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a removable first power supply configured to supply power to the electronic device when the electronic device operates in a first power mode;
an internal second power supply configured to supply power to the electronic device when the electronic device operates in the first power mode and a second power mode;
a memory configured to include a volatile memory and a non-volatile memory and operate based on power supplied from the internal second power supply; and
one or more processors configured to execute computer readable instructions to,
switch the memory from the first power mode to the second power mode in response to (i) interruption of power supplied from the removable first power supply to the electronic device, or (ii) detecting that a charge of the removable first power supply has fallen below a threshold level,
wherein an operating speed of the memory in the second power mode is less than an operating speed of the memory in the first power mode.