Patent ID: 11928195
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. An electronic device comprising:
a housing comprising a first plate which faces a first direction, a second plate which faces away from the first plate, and a side member which surrounds a space between the first plate and the second plate;
an antenna array;
an image sensor disposed to face the first direction;
a wireless communication circuit electrically coupled to the antenna array and configured to form a directional beam using the antenna array;
a processor coupled with the image sensor and the wireless communication circuit; and
a memory operably coupled to the processor,
wherein the memory stores instructions, when executed, causing the processor to:
obtain at least one image using the image sensor,
recognize an object in the at least one image,
calculate coordinates for transmission of directional beams having a first sequence based on the recognized object in the at least one image,
transmit the directional beams having the first sequence in at least one second direction using the calculated coordinates, via the antenna array,
receive reflected waves having a second sequence and reflected by the object, via the antenna array,
recognize a presence of the object based on the recognized object in the at least one image and amplitude patterns of the reflected waves corresponding to the object,
transmit directional beams having the first sequence in the at least one second direction using the calculated coordinates via the antenna array for detecting liveness,
receive reflected waves having the second sequence and reflected by the object via the antenna array, and
recognize the liveness of the object based on the reflected waves for detecting the liveness, and

wherein recognition of the liveness of the object comprises detecting micromovement of a specific portion of a face of a user.