US 12,282,374 B2
Electronic card
Tatsuya Hosotani, Nagaokakyo (JP); and Kiyokazu Yamada, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on May 10, 2023, as Appl. No. 18/315,435.
Application 18/315,435 is a continuation of application No. PCT/JP2021/040476, filed on Nov. 3, 2021.
Claims priority of application No. 2020-190090 (JP), filed on Nov. 16, 2020.
Prior Publication US 2023/0280813 A1, Sep. 7, 2023
Int. Cl. G06F 1/32 (2019.01); G06F 1/3231 (2019.01)
CPC G06F 1/3231 (2013.01) 20 Claims
OG exemplary drawing
 
1. An electronic card comprising:
an electric storage device;
a charging circuit configured to charge the electric storage device;
a wireless communication circuit configured to perform wireless communication with an external device;
a processor that is electrically connected to the wireless communication circuit and is configured to perform signal processing;
an electronic function circuit that is connected to the processor and is configured to receive a received signal and output an output signal;
a power management circuit configured to manage a supply of power to each unit; and
a wakeup circuit configured to start the power management circuit upon receiving an external trigger,
wherein
the power management circuit is configured to supply, after being started by the wakeup circuit, power of the electric storage device to the processor and the electronic function circuit, and
the processor is configured to store, before a start of the wireless communication, an operation state or an output result of the electronic function circuit which is obtained by an operation with power of the electric storage device, and is configured to cause, after operation processing of the electronic function circuit, the wireless communication circuit to start the wireless communication.