Granted Patent B2

US 12,542,573 · App. 18/223,310 · Granted Feb 3, 2026

Inventors: Kyungwoo Yoo (Suwon-si, KR); Dooseok Choi (Suwon-si, KR); Hyung Sun Lim (Suwon-si, KR); Joonhoi Hur (Suwon-si, KR)

Assignee: SAMSUNG ELECTRONICS CO., LTD.

H04B1/38G01S13/04H04W52/18G01S7/006

Abstract

Claims (59)

1 . An electronic device comprising:

a transceiver configured to transmit and receive a wireless signal; and

a processor configured to:

control a measurement circuit to identify a transmission/reception power ratio of the wireless signal;

control a converter to transform the transmission/reception power ratio into frequency domain data;

detect whether an object is adjacent the electronic device, based on the frequency domain data and an adjustable threshold; and

control the transceiver based on whether the object is detected adjacent the electronic device.

2 . The electronic device of claim 1 , wherein the processor is further configured to:

identify a noise level based on noise data, which corresponds to a noise frequency bandwidth of the frequency domain data; and

set the adjustable threshold based on the noise level and a tuning parameter.

3 . The electronic device of claim 2 , wherein the processor is further configured to adjust the tuning parameter.

4 . The electronic device of claim 2 , wherein the processor is further configured to:

identify the object is adjacent the electronic device, based on the frequency domain data exceeding the adjustable threshold; and

identify the object is not adjacent the electronic device, based on the frequency domain data being equal to or less than the adjustable threshold.

5 . The electronic device of claim 4 , wherein the processor is further configured to:

transmit the wireless signal with first power, based on determining the object is adjacent the electronic device; and

transmit the wireless signal with second power, greater than the first power, based on determining the object is not adjacent the electronic device.

6 . The electronic device of claim 5 , wherein the second power is greater than the first power by 4 dB.

7 . The electronic device of claim 4 , wherein the processor is further configured to:

detect the object for a time period corresponding to a maximum stop time of a human body;

transmit the wireless signal with first power, based on identifying the object is adjacent the electronic device; and

transmit the wireless signal with second power, greater than the first power, based on identifying the object is not adjacent the electronic device for the time period.

8 . The electronic device of claim 4 , wherein the processor is further configured to identify the object is adjacent the electronic device, based on any one frequency component of the frequency domain data exceeding the adjustable threshold.

9 . The electronic device of claim 2 , wherein the processor is further configured to:

transform the frequency domain data into normalized data based on the noise level;

identify the object is adjacent the electronic device, based on the normalized data exceeding the tuning parameter; and

identify the object is not adjacent the electronic device, based on the normalized data being equal to or less than the tuning parameter.

10 . The electronic device of claim 1 , wherein the processor is further configured to control the converter to transform the transmission/reception power ratio into the frequency domain data through Discrete Fourier Transform (DFT).

11 . An operating method performed by an electronic device, the operating method comprising:

identifying a transmission/reception power ratio of a wireless signal;

transforming the transmission/reception power ratio into frequency domain data;

detecting whether an object is adjacent the electronic device, based on the frequency domain data and an adjustable threshold; and

controlling transmission power of the wireless signal, based on whether the object is detected adjacent the electronic device.

12 . The operating method of claim 11 , further comprising:

identifying a noise level based on noise data, which corresponds to a noise frequency bandwidth of the frequency domain data; and

setting the adjustable threshold based on the noise level and a tuning parameter.

13 . The operating method of claim 12 , further comprising adjusting a detection rate by adjusting the tuning parameter.

14 . The operating method of claim 11 , wherein the detecting the object comprises:

identifying the object is adjacent the electronic device, based on the frequency domain data exceeding the adjustable threshold; and

identifying the object is not adjacent the electronic device, based on the frequency domain data being equal to or less than the adjustable threshold.

15 . The operating method of claim 14 , wherein the controlling the transmission power comprises:

transmitting the wireless signal with first power, based on identifying the object is adjacent the electronic device; and

transmitting the wireless signal with second power, greater than the first power, based on identifying the object is not adjacent the electronic device.

16 . The operating method of claim 14 , wherein the detecting the object comprises detecting the object for a time period corresponding to a maximum stop time of a human body.

17 . The operating method of claim 12 , further comprising transforming the frequency domain data into normalized data based on the noise level,

wherein the detecting of the object comprises:

identifying the object is adjacent the electronic device, based on the normalized data exceeding the tuning parameter; and

identifying the object is not adjacent the electronic device, based on the normalized data being equal to or less than the tuning parameter.

18 . An electronic device comprising:

a transceiver configured to transmit and receive a wireless signal; and

a processor configured to:

measure a transmission/reception power ratio of the wireless signal;

transform the transmission/reception power ratio into frequency domain data;

detect whether an object is adjacent the electronic device, based on the frequency domain data and an adjustable threshold; and

control the transceiver based on whether the object is detected adjacent the electronic device.

19 . The electronic device of claim 18 , wherein the processor is further configured to:

identify a noise level based on noise data, which corresponds to a noise frequency bandwidth of the frequency domain data; and

set the adjustable threshold based on the noise level and a tuning parameter.

20 . The electronic device of claim 19 , wherein the processor is further configured to adjust the tuning parameter.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (16)