US 12,222,416 B2Granted

Electronic device for identifying attribute of object by using millimeter wave and control method therefor

AssigneeSamsung Electronics Co., Ltd.

InventorsHyunkee Min, Chiho Kim, Junghun Lee, Taehun Lim, Junsu Choi

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Abstract

According to various embodiments, an electronic device using a millimeter wave comprises: a first antenna array; a second antenna array; a communication circuit; and at least one processor, wherein the at least one processor may be configured to: control the communication circuit to output a first signal through the first antenna array; when a first reflected signal acquired from the first signal reflected by an object is received through the second antenna array, determine the range between the object and the electronic device on the basis of the first reflected signal; determine an output period of a second signal on the basis of the determined range; control the communication circuit to output the second signal through the first antenna array according to the determined output period; and when a second reflected signal acquired from the second signal reflected by the object is received through the second antenna array, identify an attribute of the object on the basis of the second reflected signal. Various other embodiments may be possible.

Claims10

Dependent claims

An electronic device, comprising:

a first antenna array;
a second antenna array;
a communication circuit;
a camera;
at least one hardware processor, and
memory, wherein the memory stores instructions that, when executed by the at least one hardware processor, cause the electronic device to:
control the communication circuit to output a first signal through the first antenna array,
receive, through the second antenna array, a first reflection signal of the first signal reflected by an object,
determine a distance between the object and the electronic device based on the first reflection signal,
based on the distance, determine whether the distance is less than a first threshold distance,
based on the distance being equal to or less than the first threshold distance:
determine whether an angle of incidence of the first reflection signal is equal to or less than a threshold angle, wherein the angle of incidence of the first reflection signal includes a maximum angle among angles of incidence detected with respect to the camera,
when the angle of incidence of the first reflection signal is equal to or less than the threshold angle, determine an output period of a second signal as a first output period,
set a mode of the electronic device to a gesture recognition mode configured to identify a gesture of the object, after determining the first output period of the second signal, and
output the second signal based on the first output period of the second signal in the gesture recognition mode,
based on the distance being greater than the first threshold distance:
determine whether the distance is less than a second threshold distance longer than the first threshold distance,
based on the distance is equal to or less than the second threshold distance, determine whether the object corresponds to a face of a user,
based on the object corresponding to the face of the user, determine the output period of the second signal as a second output period shorter than the first output period,
set the mode of the electronic device to an authentication mode configured to identify the face of the user, after determining the second output period of the second signal, and
output the second signal based on the second output period of the second signal in the authentication mode.

18 more elements

A non-transitory storage medium storing one or more program, the one or more program comprising computer-executable instructions, when executed by at least one processor an electronic device, cause the electronic device to:

control a communication circuit of the electronic device to output a first signal through a first antenna array of the electronic device,
receive, through a second antenna array of the electronic device, a first reflection signal of the first signal reflected by an object,
determine a distance between the object and the electronic device based on the first reflection signal,
based on the distance, determine whether the distance is less than a first threshold distance,
based on the distance being equal to or less than the first threshold distance:
determine whether an angle of incidence of the first reflection signal is equal to or less than a threshold angle, wherein the angle of incidence of the first reflection signal includes a maximum angle among angles of incidence detected with respect to the camera,
when the angle of incidence of the first reflection signal is equal to or less than the threshold angle, determine an output period of a second signal as a first output period,
set a mode of the electronic device to a gesture recognition mode configured to identify a gesture of the object, after determining the first output period of the second signal, and
output the second signal based on the first output period of the second signal in the gesture recognition mode,
based on the distance being greater than the first threshold distance:
determine whether the distance is less than a second threshold distance longer than the first threshold distance,
based on the distance is equal to or less than the second threshold distance, determine whether the object corresponds to a face of a user,
based on the object corresponding to the face of the user, determine the output period of the second signal as a second output period shorter than the first output period,
set the mode of the electronic device to an authentication mode configured to identify the face of the user, after determining the second output period of the second signal, and
output the second signal based on the second output period of the second signal in the authentication mode.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/668,528Filed 10 Feb 2022 · continuation
Priority: KR 10-2019-010038616 Aug 2019
Published: US 2022/0163650 A126 May 2022
Granted: 11 Feb 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

G01S 13/08
Systems determining position data of a target: systems for measuring distance only
G01S 7/006
Transmission of data between radar, sonar or lidar systems and remote stations: using shared front-end circuitry, e.g. antennas
G01S 7/41
Of systems according to group G01S13/00: using analysis of echo signal for target characterisation; Target signature; Target cross-section
G01S 13/42
Systems determining position data of a target: simultaneous measurement of distance and other co-ordinates

Family

PCT/KR2020/010765Parent of this continuation · filed 13 Aug 2020
US 2022/0163650 A1Pre-grant publication · published 26 May 2022
US 12,222,416 B2This patent

From the US filing history. Foreign family members aren’t listed.

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