Processing circuitry for object detection in standby mode, electronic device, and operating method thereof

An operating method of an electronic device which includes an “Always On” domain continuously supplied with a power and present in processing circuitry, the method comprising:

• acquiring first data including information about an external object through a first sensor;
• determining whether to need to perform face detection or QR code detection based on the first data;
• outputting a first control request signal of requesting a power supply to a second sensor based on a result of the determining of whether to need the face detection or the QR code detection;
• supplying a power to the second sensor in response to the first control request signal;
• acquiring second data including image information about the external object through the second sensor;
• performing the face detection or the QR code detection based on the second data;
• and
• controlling a power supply based on a result of the face detection or the QR code detection,
• wherein the determining of whether to need the face detection or the QR code detection,
• the outputting of the first control request signal, and the performing of the face detection or the QR code detection are performed in an always-on domain of the processing circuitry.

An application processor comprising:

• always-on domain processing circuitry configured to:
• receive first data including information about an external object from a first sensor and to determine whether to need to perform face detection or QR code detection based on the first data and receive second data including image information about the external object from a second sensor and to perform the face detection or the QR code detection based on the second data;
• and
• not-always-on domain processing circuitry configured to control a power supply in response to a control request signal output from the always-on domain processing circuitry,
• wherein the always-on domain processing circuitry is always supplied with a power from the power supply.