US 11,081,127 B2Granted

Electronic device and control method therefor

AssigneeSamsung Electronics Co., Ltd.

InventorsJaemyung Hur, Kunsok Kang, Hyunkyu Yun

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Abstract

An electronic device is disclosed. The electronic device comprises a communication unit, a speaker, and a processor for: outputting a test sound through the speaker when a preset signal is received from an external terminal device through the communication unit; acquiring, on the basis of sound data, reverberation time information for each frequency of the test sound and size information on a space in which the electronic device is positioned when sound data acquired by recording a test sound in a terminal device is received through the communication unit; acquiring, on the basis of the reverberation time information for each frequency and the size information on a space, a sound absorption rate of an object arranged in the space; and identifying information on the object on the basis of the sound absorption rate.

Claims15

Dependent claims

An electronic device comprising:

a communicator;
a speaker;
and
a processor configured to, based on a predetermined signal being received from an external terminal device via the communicator, output a test sound via the speaker,
based on sound data obtained by recording the test sound being received from the terminal device via the communicator, obtain reverberation time information for each frequency of the test sound and size information of a space in which the electronic device is positioned, based on the sound data,
obtain a sound absorption coefficient of an object arranged in the space based on the reverberation time information for each frequency and the size information of the space, and
identify information of the object based on the sound absorption coefficient,
wherein a size of the space is obtained based on an energy intensity for each frequency until a volume of the test sound reaches a predetermined threshold value and an energy intensity for each frequency for a predetermined period of time from an output point of the test sound.

5 more elements

A method for controlling an electronic device, the method comprising:

based on a predetermined signal being received from an external terminal device, outputting a test sound;
based on sound data obtained by recording the test sound being received from the terminal device, obtaining reverberation time information for each frequency of the test sound and size information of a space in which the electronic device is positioned, based on the sound data,
obtaining a sound absorption coefficient of an object arranged in the space based on the reverberation time information for each frequency and the size information of the space, and
identifying information of the object based on the obtained sound absorption coefficient,
wherein a size of the space is obtained based on an energy intensity for each frequency until a volume of the test sound reaches a predetermined threshold value and an energy intensity for each frequency for a predetermined period of time from an output point of the test sound.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/961,420Filed 21 Dec 2018
Priority: KR 10-2018-000671818 Jan 2018
Published: US 2020/0381007 A13 Dec 2020
Granted: 3 Aug 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

G10L 25/51
Specially adapted for particular use: for comparison or discrimination
H04S 7/305
Control circuits for electronic adaptation of the sound field: electronic adaptation of stereophonic audio signals to reverberation of the…
G10L 25/21
Characterised by the type of extracted parameters: the extracted parameters being power information
H04R 1/403
By combining a number of identical transducers: loud-speakers