US 12,346,763 B2
Electronic device powered on in response to radio frequency signal, near field communication tag circuit included therein, and operating method thereof
Sung Wan Kim, Gwangju-si (KR); Pyeong Han Lee, Seongnam-si (KR); Kwang Beom Park, Seongnam-si (KR); Sung Hun Chun, Gunpo-si (KR); and Chang Ho Ryu, Seongnam-si (KR)
Assigned to 3A LOGICS Co., LTD., Seongnam-si (KR)
Filed by 3A LOGICS Co., LTD., Seongnam-si (KR)
Filed on Dec. 22, 2023, as Appl. No. 18/395,378.
Claims priority of application No. 10-2023-0042963 (KR), filed on Mar. 31, 2023.
Prior Publication US 2024/0330616 A1, Oct. 3, 2024
Int. Cl. G06K 7/10 (2006.01); G05F 1/56 (2006.01); G06K 19/07 (2006.01); H04B 5/73 (2024.01); H04B 5/79 (2024.01)
CPC G06K 7/10297 (2013.01) [G05F 1/56 (2013.01); G06K 19/0723 (2013.01); H04B 5/73 (2024.01); H04B 5/79 (2024.01)] 14 Claims
OG exemplary drawing
 
1. A near field communication (NFC) device comprising:
a DC power supply configured to output a DC voltage;
an NFC interface configured to generate a control signal in response to an NFC signal; and
a voltage supply control circuit configured to supply the DC voltage to an electronic circuit in response to the control signal and maintain supply of the DC voltage to the electronic circuit in response to a voltage maintaining signal generated by the electronic circuit powered on by the DC voltage.