# US 12,003,955 B2 · Display apparatus and control method thereof

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- Number: US 12,003,955 B2
- Document ID: US12003955B2
- Status: Granted
- Kind: B2
- Application number: 17/573,183
- Filed: 2022-01-11
- Published: 2022-06-02
- Granted: 2024-06-04
- Earliest claimed: 2020-12-01
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Sungha Son; Sangchul Ko; Jinman Kim; Youngsang Lee; Sungjoo Kim; Jongbae Kim; Dongkyu Park; Donghyun Jung
- Web page: https://patentgrep.com/patent/US12003955B2

## CPC

- H04S 7/307: {Frequency adjustment, e.g. tone control (H04S7/301 takes precedence)}
- H04N 21/436: Interfacing a local distribution network, e.g. communicating with another STB {or one or more peripheral devices} inside the home
- H04N 21/439: Processing of audio elementary streams
- H04R 5/02: Spatial or constructional arrangements of loudspeakers
- H04S 7/00: Indicating arrangements; Control arrangements, e.g. balance control
- H04S 7/303: {Tracking of listener position or orientation}
- H04R 2499/15: Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
- H04S 2400/01: Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
- H04S 2400/05: Generation or adaptation of centre channel in multi-channel audio systems
- H04S: STEREOPHONIC SYSTEMS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)

## Abstract

A display apparatus and a method for controlling the display apparatus are disclosed. The display apparatus includes: a communication interface comprising communication circuitry, a display, a plurality of speakers, and a processor, and the processor is configured to: control the communication interface to receive an acoustic content corresponding to a sound signal of a plurality of channels corresponding to a specified frequency bandwidth, extend a frequency bandwidth of at least one channel of the plurality of channels based on a specified parametric equalizer (PEQ), perform correction of reducing a gain in middle frequency and high frequency bands of at least one channel of the plurality of channels with the extended frequency bandwidth, and output each sound signal of the plurality of corrected channels to the plurality of corresponding speakers so that a sound image of the sound signal is formed in a center area of the display.

## Claims

### Claim 1

A display apparatus comprising:
a communication interface comprising communication circuitry;
a display;
a plurality of speakers; and
a processor,
wherein the processor is configured to:
control the communication interface to receive an acoustic content corresponding to a sound signal of a plurality of channels corresponding to a specified frequency bandwidth;
extend a frequency bandwidth of at least one channel of the plurality of channels based on a specified parametric equalizer (PEQ);
perform correction of reducing a gain in middle frequency and high frequency bands of at least one channel of the plurality of channels with the extended frequency bandwidth; and
output each sound signal of the plurality of corrected channels to the plurality of corresponding speakers so that a sound image of the sound signal is formed in a center area of the display.

### Claim 2 (depends on 1)

The display apparatus according to claim 1, wherein the parametric equalizer comprises at least one of: a delay of each sound signal of the plurality of channels, gain adjustment, and applying a weight set to a predetermined frequency band.

### Claim 3 (depends on 2)

The display apparatus according to claim 2, wherein the plurality of speakers are disposed in at least one area of a left area, a center area, and a right area of the display apparatus, and
wherein the left area comprises an upper left area, a middle left area, and a lower left area of the display apparatus, the center area comprises an upper center area and a lower center area of the display apparatus, and the right area comprises an upper right area, a middle right area, and a lower right area of the display apparatus.

### Claim 4 (depends on 3)

The display apparatus according to claim 3, wherein the processor is configured to: based on a center speaker being disposed in the center area, outputting a sound signal by increasing a gain of a sound signal of a channel output to the center speaker to be greater than a gain of a sound signal of a channel output to speakers disposed in other areas based on the parametric equalizer.

### Claim 5 (depends on 3)

The display apparatus according to claim 3, wherein the processor is configured to: based on speakers being disposed in a lower area and an upper area of the display apparatus, delay and output a sound signal of a channel output to the speaker disposed in the lower area based on the parametric equalizer, and form a sound image of the sound signal in the center area of the display.

### Claim 6 (depends on 4)

The display apparatus according to claim 4, wherein the processor is configured to: output a sound signal by increasing a gain of the sound signal of a channel output to a speaker disposed in the upper area based on the parametric equalizer, and form a sound image of the sound signal in the center area of the display.

### Claim 7 (depends on 4)

The display apparatus according to claim 4, wherein the processor is configured to: output the sound signal by applying a weight set to a high frequency band of a channel output to a speaker disposed in the center area based on the parametric equalizer, and form a sound image of the sound signal in the center area of the display.

### Claim 8 (depends on 3)

The display apparatus according to claim 3, wherein the processor is configured to: based on speakers being disposed in a lower area and an upper area of the display, output a sound signal by applying a weight set to low frequency and middle frequency bands of a channel output to a speaker disposed in the upper area based on the parametric equalizer, and prevent or reduce a deterioration of the sound signal in a high frequency band.

### Claim 9 (depends on 3)

The display apparatus according to claim 3, further comprising:
a sensor configured to detect a location of a user,
wherein the processor is configured to: based on the detected location of the user, delay and output a sound signal of a channel output to a speaker disposed in an area corresponding to the location of the user among the left area and the right area and correct an area in which the sound image of the sound signal is formed.

### Claim 10 (depends on 9)

The display apparatus according to claim 9, wherein the processor is configured to: output a sound signal by increasing a gain of the sound signal of a channel output to a speaker disposed in an area farthest away from the detected location of the user and correct an area in which the sound image of the sound signal is formed.

### Claim 11 (depends on 9)

The display apparatus according to claim 9, wherein the processor is configured to: output the sound signal by applying a weight set to a high frequency band of a channel output to a speaker disposed in an area farthest away from the detected location of the user, and correct an area in which the sound image of the sound signal is formed.

### Claim 12

A method for controlling a display apparatus, the method comprising:
receiving an acoustic content corresponding to a sound signal of a plurality of channels corresponding to a specified frequency bandwidth;
extending a frequency bandwidth of the plurality of channels based on a specified parametric equalizer (PEQ);
performing correction of reducing a gain in middle frequency and high frequency bands of at least one channel of the plurality of channels with the extended frequency bandwidth; and
outputting each sound signal of the plurality of corrected channels to the plurality of corresponding speakers so that a sound image of the sound signal is formed in a center area of the display.

### Claim 13 (depends on 12)

The method for controlling a display apparatus according to claim 12, wherein the parametric equalizer comprises at least one of: a delay of each sound signal of the plurality of channels, gain adjustment, and applying a weight set to a predetermined frequency band.

### Claim 14 (depends on 13)

The method for controlling a display apparatus according to claim 13, wherein the outputting to the plurality of speakers comprises: based on a center speaker being disposed in a center area of the display apparatus, outputting a sound signal by increasing a gain of a sound signal of a channel output to the center speaker to be greater than a gain of a sound signal of a channel output to speakers disposed in other areas based on the parametric equalizer.

### Claim 15 (depends on 13)

The method for controlling a display apparatus according to claim 13, wherein the outputting to the plurality of speakers comprises: based on speakers being disposed in a lower area and an upper area of the display apparatus, delaying and outputting a sound signal of a channel output to the speaker disposed in the lower area based on the parametric equalizer.

### Claim 16 (depends on 15)

The method for controlling a display apparatus according to claim 15, wherein the outputting to the plurality of speakers comprises: outputting a sound signal by increasing a gain of the sound signal of a channel output to a speaker disposed in the upper area based on the parametric equalizer.

### Claim 17 (depends on 15)

The method for controlling a display apparatus according to claim 15, wherein the outputting to the plurality of speakers comprises: outputting the sound signal by applying a weight set to a high frequency band of a channel output to a speaker disposed in the center area based on the parametric equalizer.

### Claim 18 (depends on 13)

The method for controlling a display apparatus according to claim 13, wherein the outputting to the plurality of speakers comprises: based on speakers being disposed in a lower area and an upper area of the display, outputting a sound signal by applying a weight set to low frequency and middle frequency bands of a channel output to a speaker disposed in the upper area based on the parametric equalizer, and prevent or reduce a deterioration of the sound signal in a high frequency band.

### Claim 19 (depends on 12)

The method for controlling a display apparatus according to claim 12, further comprising:
detecting a location of a user;
based on the detected location of the user, delaying and outputting a sound signal of a channel output to a speaker disposed in an area corresponding to the location of the user among a left area and a right area of the display apparatus and correcting an area in which the sound image of the sound signal is formed.

### Claim 20 (depends on 19)

The method for controlling a display apparatus according to claim 19, wherein the correcting an area in which the sound image of the sound signal is formed comprises: outputting a sound signal at least one of by increasing a gain of the sound signal of a channel output to a speaker disposed in an area farthest away from the detected location of the user and by applying a weight set to a high frequency band of a channel output to a speaker disposed in an area farthest away from the detected location of the user, and correcting an area in which the sound image of the sound signal is formed.