US 12,438,568 B2
Wireless communication device
Nobumasa Higemoto, Yokohama (JP)
Assigned to LAPIS Technology Co., Ltd., Yokohama (JP)
Filed by LAPIS Technology Co., Ltd., Yokohama (JP)
Filed on Nov. 13, 2023, as Appl. No. 18/508,179.
Claims priority of application No. 2022-188477 (JP), filed on Nov. 25, 2022.
Prior Publication US 2024/0178876 A1, May 30, 2024
Int. Cl. H04B 1/40 (2015.01); H02J 50/27 (2016.01); H04B 1/16 (2006.01)
CPC H04B 1/40 (2013.01) [H02J 50/27 (2016.02); H04B 1/1615 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A wireless communication device, comprising:
an antenna, in response to receiving a radio wave from an external source, transmitting a radio frequency signal corresponding to the radio wave from the external source;
a detector, detecting the radio frequency signal to obtain a detection signal;
a circuit part, performing signal processing based on reception data obtained by performing demodulation processing on the detection signal;
a regulator, in response to receiving an external power source voltage from an external source, generating and supplying an internal power source voltage for operating the circuit part to the circuit part based on the external power source voltage; and
a radio wave detection control part, detecting whether or not the antenna is receiving the radio wave from the external source and controlling the regulator so that a generation operation of the internal power source voltage by the regulator is stopped in response to the antenna not receiving the radio wave from the external source.