Granted Patent B2

US 12,513,463 · App. 18/420,316 · Granted Dec 30, 2025

Inventor: Dong Wan Han (Seoul, KR)

Assignee: LG ELECTRONICS INC.

H04R3/12H04R2205/024H04R2420/07H04R2499/15

Abstract

Claims (34)

1 . A display device comprising:

a display unit configured to display image content;

a wireless communication interface configured to wirelessly connect with a plurality of external speakers spaced a distance from the display device;

at least one positioning module configured to obtain position information of the plurality of external speakers by identifying a spatial relationship between each external speaker and the display device, the positioning module comprising a Two Way Ranging (TWR) module configured to obtain the position information of the plurality of external speakers using a TWR method, the TWR module being disposed inside a housing of the display device; and

a controller configured to transmit an audio signal to be output by the plurality of external speakers, based on the obtained position information of the plurality of external speakers.

2 . The display device of claim 1 , wherein the housing includes the display unit.

3 . The display device of claim 1 , wherein the controller is further configured to:

determine a speaker type of each external speaker among the plurality of external speakers based on the position information;

periodically determine the speaker type of each external speaker among the plurality of external speakers based on updated position information of the plurality of external speakers; and

transmit the audio signal to be output corresponding to the determined speaker type of each external speaker among the plurality of external speakers, and

wherein the speaker type includes at least one of a center speaker, a front speaker, and a rear speaker.

4 . The display device of claim 1 , wherein the position information of the plurality of external speakers includes a physical distance between the positioning module and a corresponding external speaker among the plurality of external speakers,

wherein the controller is further configured to determine a speaker type of each external speaker among the plurality of external speakers, based on the physical distance between the at least one-positioning module and the external speaker among the plurality of external speakers, and

wherein, when the positioning module is disposed at a left rear portion of the display device, offset from a horizontal centerline of the display device, the controller is further configured to:

determine a first external speaker among the plurality of external speakers, having a closest distance from the positioning module and a specific directional relationship relative to a front surface of the display device, as a front speaker, and

determine a second external speaker among the plurality of external speakers, having a farthest distance from the positioning module and the specific directional relationship relative to the display device's front surface, as a rear speaker.

5 . The display device of claim 1 , wherein the display device includes one positioning module disposed at a position that is offset from a horizontal length centerline of the display device, and is closer to a rear surface of the display device than a vertical centerline of the display device, and

wherein the controller is further configured to determine a type of the plurality of external speakers, based on the position information of the plurality of external speakers obtained by the positioning module.

6 . The display device of claim 5 , wherein the controller determines an external speaker among the plurality of external speakers, having a closest distance from the positioning module, as a front speaker and determines an external speaker among the plurality of external speakers, having a farthest distance from the positioning module, as a rear speaker.

7 . The display device of claim 6 , wherein the front speaker includes a left front speaker and a right front speaker, and the rear speaker includes a left rear speaker and a right rear speaker, and

wherein if the position module is disposed at a point horizontally offset to a left from the horizontal centerline of the display device, the controller determines an external speaker of the front speakers, having a closer distance from the positioning module, as the left front speaker and determines an external speaker of the rear speakers, having a closer distance from the positioning module, as the left rear speaker.

8 . The display device of claim 1 , wherein the positioning module includes a plurality of positioning modules, and

wherein the plurality of positioning modules are configured to obtain position information of at least one external speaker among the plurality of external speakers for each of the plurality of positioning modules.

9 . The display device of claim 8 , wherein the plurality of positioning modules obtain the position information of plurality of the external speakers in a predetermined order.

10 . The display device of claim 9 , wherein the plurality of positioning modules include:

a first positioning module disposed at a horizontal centerline of the display device;

a second positioning module; and

a third positioning module disposed on both sides of the first positioning module, and

wherein the first positioning module is configured to obtain position information of one external speaker, and the second positioning module and the third positioning module are each configured to obtain position information of two external speakers.

11 . The display device of claim 10 , wherein the controller determines a center speaker based on the position information obtained by the first positioning module, determines two front speakers based on the position information obtained by the second positioning module, and determines two rear speakers based on the position information obtained by the third positioning module.

12 . The display device of claim 11 , wherein the second positioning module obtains the position information of each of the two external speakers from the plurality of external speakers excluding the center speaker, having a closest distance from the second positioning module, and

wherein, if the second positioning module is disposed at a point horizontally offset to a left from the horizontal centerline of the display device, the controller determines the external speaker of the two external speakers, having a closer distance from the second positioning module, as a left front speaker and determines the other of the two external speakers as a right front speaker.

13 . The display device of claim 11 , wherein the third positioning module obtains the position information of each of the two external speakers from the plurality of external speakers excluding the center speaker and the front speaker, having a closest distance from the third positioning module, and

wherein if the third positioning module is disposed at a point horizontally offset to a right from the horizontal centerline of the display device, the controller determines the external speaker of the two external speakers, having a closer distance from the second third positioning module, as a right rear speaker and determines the other of the two external speakers as a left rear speaker.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (22)