# US 2024/0201933 A1 · Display device and operation method thereof

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- Number: US 2024/0201933 A1
- Document ID: US20240201933A1
- Status: Published application
- Kind: A1
- Application number: 18/592,886
- Filed: 2024-03-01
- Published: 2024-06-20
- Earliest claimed: 2021-09-02
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Kilsoo CHOI; Sehyun KIM; Hyeeun PARK; Sukun YOON; Jongin LEE
- Web page: https://patentgrep.com/patent/US20240201933A1

## CPC

- G06F 3/1454: {involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay}
- G06F 1/1605: {Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones}
- G06F 3/0484: for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F 3/04847: Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
- G06F 3/14: Digital output to display device {; Cooperation and interconnection of the display device with other functional units}
- G06F 3/16: Sound input; Sound output (speech processing G10L)
- G06F 3/165: {Management of the audio stream, e.g. setting of volume, audio stream path}
- H04N 21/43: Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware {(real-time communication protocols in data switching networks H04L65/00)}
- H04N 21/43076: {of the same content streams on multiple devices, e.g. when family members are watching the same movie on different devices}
- H04N 21/439: Processing of audio elementary streams
- H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
- G06F 2203/04803: Split screen, i.e. subdividing the display area or the window area into separate subareas
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A display apparatus including a display, and a processor configured to execute one or more instructions stored in a memory to identify that a first audio input/output device and a second audio input/output device, through which audio data is to be output by using a Bluetooth communication protocol, are connected, and based on identifying that different Bluetooth communication profiles are used in Bluetooth communication for outputting the audio data to the first audio input/output device and the second audio input/output device, control a communication interface to delay the audio data output to one of the first audio input/output device and the second audio input/output device for a preset period of time by using a synchronization buffer and then output the audio data, in order to synchronize the audio data output to the first audio input/output device with the audio data output to the second audio input/output device.

## Claims

### Claim 1

A display apparatus comprising:
a display;
a communication interface;
a memory storing one or more instructions; and
a processor configured to execute the one or more instructions stored in the memory to
identify that a first audio input/output device and a second audio input/output device, through which audio data is to be output by using a Bluetooth communication protocol, are connected, and
based on identifying that different Bluetooth communication profiles are used in Bluetooth communication for outputting the audio data to the first audio input/output device and to the second audio input/output device, control the communication interface to delay output of the audio data to one of the first audio input/output device and the second audio input/output device for a preset period of time by using a synchronization buffer, in order to synchronize the audio data output to the first audio input/output device with the audio data output to the second audio input/output device.

### Claim 2 (depends on 1)

The display apparatus of claim 1, wherein
the processor is further configured to execute the one or more instructions to
control the display to display a first image of first content through a first window and display a second image of the first content through a second window, in a multi-window including the first window and the second window, and
obtain the audio data by mixing first audio data corresponding to the first image and second audio data corresponding to the second image.

### Claim 3 (depends on 2)

The display apparatus of claim 2, wherein the processor is further configured to execute the one or more instructions to
control the communication interface to process the audio data according to an advanced audio distribution profile (A2DP) Bluetooth profile in order to output the audio data to the first audio input/output device, and
control the communication interface to process mixing data of the audio data and voice call sound according to a hands-free profile (HFP) Bluetooth profile in order to output the voice call sound to the second audio input/output device along with the audio data.

### Claim 4 (depends on 3)

The display apparatus of claim 3, wherein the processor is further configured to execute the one or more instructions to
control the communication interface to delay the mixing data processed according to the HFP Bluetooth profile for a preset period of time by using the synchronization buffer in order to synchronize the audio data processed according to the A2DP Bluetooth profile with the mixing data processed according to the HFP Bluetooth profile.

### Claim 5 (depends on 4)

The display apparatus of claim 4, wherein a preset size of the synchronization buffer corresponds to a size of a buffer provided in the first audio input/output device.

### Claim 6 (depends on 5)

The display apparatus of claim 5, wherein the processor is further configured to execute the one or more instructions to
control the display to display a graphical user interface allowing a user to adjust a delay time of the synchronization buffer, and
adjust the delay time of the synchronization buffer according to a user input received through the graphical user interface.

### Claim 7 (depends on 1)

The display apparatus of claim 1, wherein the processor is further configured to execute the one or more instructions to
control the display to display first content, and
obtain the audio data corresponding to the first content.

### Claim 8 (depends on 7)

The display apparatus of claim 7, wherein the processor is further configured to execute the one or more instructions to
control the communication interface to process the audio data according to an advanced audio distribution profile (A2DP) Bluetooth profile in order to output the audio data to the first audio input/output device, and
control the communication interface to process mixing data of the audio data and voice call sound according to a hands-free profile (HFP) Bluetooth profile in order to output the voice call sound to the second audio input/output device along with the audio data.

### Claim 9 (depends on 8)

The display apparatus of claim 8, wherein the processor is further configured to execute the one or more instructions to
control the communication interface to delay the mixing data processed according to the HFP Bluetooth profile for a preset period of time by using the synchronization buffer in order to synchronize the audio data processed according to the A2DP Bluetooth profile with the mixing data processed according to the HFP Bluetooth profile.

### Claim 10

An operation method of a display apparatus, the operation method comprising:
identifying that a first audio input/output device and a second audio input/output device, through which audio data is to be output by using a Bluetooth communication protocol, are connected; and
based on identifying that different Bluetooth communication profiles are used in Bluetooth communication for outputting the audio data to the first audio input/output device and to the second audio input/output device, delaying the audio data output to one of the first audio input/output device and the second audio input/output device for a preset period of time by using a synchronization buffer, in order to synchronize the audio data output to the first audio input/output device with the audio data output to the second audio input/output device.

### Claim 11 (depends on 10)

The operation method of claim 10, further comprising:
displaying a first image of first content through a first window and display a second image of the first content through a second window, in a multi-window including the first window and the second window, and
obtaining the audio data by mixing first audio data corresponding to the first image and second audio data corresponding to the second image.

### Claim 12 (depends on 11)

The operation method of claim 11, further comprising:
processing the audio data according to an advanced audio distribution profile (A2DP) Bluetooth profile in order to output the audio data to the first audio input/output device, and
processing mixing data of the audio data and voice call sound according to a hands-free profile (HFP) Bluetooth profile in order to output the voice call sound to the second audio input/output device along with the audio data.

### Claim 13 (depends on 12)

The operation method of claim 12, further comprising:
controlling to delay the mixing data processed according to the HFP Bluetooth profile for a preset period of time by using the synchronization buffer, in order to synchronize the audio data processed according to the A2DP Bluetooth profile with the mixing data processed according to the HFP Bluetooth profile.

### Claim 14 (depends on 13)

The operation method of claim 13, wherein a preset size of the synchronization buffer corresponds to a size of a buffer provided in the first audio input/output device.

### Claim 15

A non-transitory computer-readable recording medium having recorded thereon one or more programs executable by a processor of a display apparatus to implement an operation method of the display apparatus, wherein the operation method comprises:
identifying that a first audio input/output device and a second audio input/output device, through which audio data is to be output by using a Bluetooth communication protocol, are connected; and
based on identifying that different Bluetooth communication profiles are used in Bluetooth communication for outputting the audio data to the first audio input/output device and to the second audio input/output device, delaying the audio data output to one of the first audio input/output device and the second audio input/output device for a preset period of time by using a synchronization buffer, in order to synchronize the audio data output to the first audio input/output device with the audio data output to the second audio input/output device.