KR20100032735A - Source device and method for setting audio out of source device - Google Patents

Source device and method for setting audio out of source device Download PDF

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Publication number
KR20100032735A
KR20100032735A KR1020080091737A KR20080091737A KR20100032735A KR 20100032735 A KR20100032735 A KR 20100032735A KR 1020080091737 A KR1020080091737 A KR 1020080091737A KR 20080091737 A KR20080091737 A KR 20080091737A KR 20100032735 A KR20100032735 A KR 20100032735A
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KR
South Korea
Prior art keywords
audio
dts
repeater device
source device
repeater
Prior art date
Application number
KR1020080091737A
Other languages
Korean (ko)
Inventor
이효제
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020080091737A priority Critical patent/KR20100032735A/en
Publication of KR20100032735A publication Critical patent/KR20100032735A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H04N21/43635—HDMI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/602—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Stereophonic System (AREA)

Abstract

PURPOSE: A source device and a method for setting audio output of the source device are provided to set audio output suitable for an audio support specification of a repeater device, thereby efficiently optimizing audio outputted through a speaker of a sync device and speakers connected to the repeater device. CONSTITUTION: A source device is connected to a repeater device through an HDMI(High Definition Multimedia Interface)(S10). The source device confirms an audio support specification of the repeater device(S15). The source device sets audio output into the repeater device according to the confirmed audio support specification(S17).

Description

Source device and method for setting audio out of source device}

The present invention relates to a source device and an audio output setting method connected to a repeater device through, for example, a high definition multimedia interface (HDMI).

In general, a source device that reproduces an audio signal and a video signal, such as a BD (Blu-ray Disc) Player, outputs and displays an audio signal and a video signal, such as a digital television (D-TV). It is connected to a sink device through a digital interface, HMI.

Recently, a repeater device having a plurality of speakers connected to it, such as a home theater, has been widely used and commercialized. For example, an audio signal and a video signal reproduced and output from the source device are commercially available. Is output to the sink device via a repeater device connected and connected via HDMI.

In addition, since the audio signal is output as multichannel audio through a plurality of speakers connected to the repeater device, the user may display a video signal reproduced by the source device through a screen of the sink device. The audio signal reproduced by the source device can be viewed in a three-dimensional sense through a speaker provided in the sink device and a plurality of speakers connected to the repeater device.

The present invention, for example, in a source device that is connected to the repeater device via a digital interface HMI, so that the audio output conforming to the audio support specification of the repeater device can be set. It is to provide a source device and audio output setting method.

The method for setting audio output of a source device according to the present invention may include: verifying an audio support specification of the repeater device in a source device connected and connected to a repeater device through an HDMI; And setting up audio output to the repeater device in accordance with the identified audio support specification.

The first step may include receiving and analyzing EDID information of the repeater device through CEC communication of HMD, and confirming an audio support specification.

The audio support specification may include at least one of 5.1 channel audio, 7.1 channel audio, Dolby Digital, Dolby Digital Plus, DTS (DTS), and DTS-HD (DTS-HD).

In addition, the second step, the audio output to the repeater device according to the confirmed audio support specification, 5.1 channel audio, 7.1 channel audio, Dolby Digital, Dolby Digital Plus, DTS (DTS), DTS HD (DTS-HD) characterized in that it is set to any one or more,

In addition, the source device according to the present invention, the source device comprises a HMI (HDMI) for the connection connection with the repeater device, and a control means for communicating with the repeater device, the control means, After confirming the audio support specification of the repeater device, the audio output to the repeater device is set according to the confirmed audio support specification,

The control unit may receive and analyze EDID information of the repeater device through CEC communication of HMD to confirm audio support specification.

The audio support specification may include at least one of 5.1 channel audio, 7.1 channel audio, Dolby Digital, Dolby Digital Plus, DTS (DTS), and DTS-HD (DTS-HD).

Further, the control means, according to the confirmed audio support specification, the audio output to the repeater device, 5.1 channel audio, 7.1 channel audio, Dolby Digital, Dolby Digital Plus, DTS (DTS), DTS HD And (DTS-HD).

The source device and audio output setting method according to the present invention may support audio of the repeater device, for example, in a source device connected to a repeater device through a digital interface HMI. After checking the specification, the audio output conforming to the audio support specification is automatically set so that the audio output through the speakers connected to the repeater device and the speakers provided in the sink device can be viewed. It can be optimized efficiently, allowing the user to listen to high quality audio.

Hereinafter, a preferred embodiment of a source device and an audio output setting method according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the source device 100 to which the present invention is applied is connected to the repeater device 200 through HDMI, which is a digital interface, and the repeater device includes a sink device ( Connected with 300).

In addition, the sink device 300 may be, for example, a digital television (D-TV) or the like, and the repeater device 200 may be a home theater or the like in which a plurality of speakers are connected and used. The source device 100 may be a BD-Player or the like.

2 illustrates a configuration of an embodiment of a source device to which the present invention is applied. For example, an optical disk 10, an optical pickup 11, and an RF processing unit may be used for a source device 100 such as a video player. 12, the MPEG decoder 13, the digital signal processor 14, the memory 15, the microcomputer 16, the OSD generator 17, and the HDMI 18 may be included.

In addition, a repeater device 200 such as a home theater is connected to the HDMI 18. For example, in the microcomputer 16, a source device is turned on or a user may According to a key input, an interface operation with the repeater device 200 connected and connected through the HDMI 18 is performed.

In addition, the microcomputer 16 performs the interface operation to check an audio specification supported by the repeater device, and then sets an audio output suitable for the checked audio specification.

For example, if the audio specification supported by the repeater device is 5.1 channel audio, and the audio output to the repeater device is set to 5.1 channel audio, and the audio specification supported by the repeater device is 7.1 channel audio, The audio output to the repeater device is set to 7.1 channel audio.

Accordingly, it is possible to more efficiently optimize the audio output through the plurality of speakers connected to the repeater device and the speakers provided in the sink device, which will be described in detail below.

3 is a flowchart illustrating an audio output setting method of a source device according to the present invention. For example, the source device 100 configured as described above with reference to FIG. When connected to the repeater device 200 through (S10), the microcomputer 16, through the CEC (Consumer Electronics Control) port assigned to the HDMI (18), the repeater device A CEC communication operation of interfacing with 200 is performed (S11).

In addition, the microcomputer 16 performs the CC communication operation to request transmission of extended play identification data (EDID) information of the repeater device (S12).

On the other hand, when the microcomputer 16 receives EDID information from the repeater device 200 (S13), the microcomputer 16 stores the IDID information in the memory 15 and analyzes the EDID information. In operation S14, the audio specification supported by the repeater device may be checked (S15).

For example, as a result of the confirmation, the audio support specification of the repeater device is, as shown in FIG. 4, multichannel audio, which is 5.1 channel audio (5,1 channel audio) and Dolby audio (Dolby). As Audio, Dolbu Digital Audio, and DTS (Digital Theater System) audio may be DTS Audio.

In addition, the audio support specification of the repeater device is, as shown in Figure 5, multi-channel audio, 5.1 channel audio, 7.1 channel audio, Dolby audio, Dolby Digital audio, Dolby Digital Plus, and As DTS audio, it may be DTS audio and DTS-HD (DTS-HD).

Meanwhile, the 5.1-channel audio includes six multi-channel audios corresponding to left, right, center, surround left, surround right, and woofer. to be.

The 7.1-channel audio is eight multi-channel audio corresponding to left, light, center, surround left, surround light, woofer, rear surround left, and rear surround right.

The Dolby Digital audio is one of Dolby audio standards for supporting the 5.1 channel audio, and the Dolby Digital Plus is one of the Dolby audio standards for supporting multichannel and high sound quality of the 5.1 channel audio. There is also a related Dolby True HD.

The DTS audio is one of the DTS standards for supporting the 5.1 channel audio, and the DTS-HD is the DTS standard for supporting audio of 6.1 or 7.1 channels or more. One is to support lossless compression of audio data.

On the other hand, in the microcomputer 16, when the audio specification that can be supported by the repeater device is confirmed as described above, when the audio recorded on the optical disc is played back according to a user's request (S16), the audio of the repeater device is reproduced. The audio playback and output operation conforming to the support specification is performed (S17).

For example, as shown in FIG. 4, when the repeater device supports only 5.1 channel audio, Dolby digital audio, and DTS audio, in the microcomputer 16, the MPEG decoder 13 and the digital signal are used. Operation control of the processing unit 14 and the like to reproduce audio signals of the MPEG data streams read from the optical disc 10 in accordance with the 5.1-channel audio, Dolby digital audio, and D-TS audio, thereby processing the repeater device. Output to (200).

On the other hand, for example, as shown in FIG. 5, when the repeater device supports 7.1 channel audio, Dolby Digital Plus audio, and DHT audio, the microcomputer 16 uses the MPEG decoder ( 13) and the digital signal processor 14 to control the audio data of the MPEG data stream read out from the optical disc 10 so as to be suitable for the 7.1-channel audio, Dolby Digital plus audio, and DHT audio. The reproduction signal is processed and output to the repeater device 200.

Then, since the user performs any corresponding operation requested by the user (S18), the user can listen to high quality audio that is optimal for the audio specification supported by the repeater device.

For reference, the source device may include a separate audio conversion module for converting 5.1 channel audio read out from the optical disc into 7.1 channel audio supported by the repeater device.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. , Alteration, substitution, addition, or the like.

1 is a view illustrating an embodiment in which a source device to which the present invention is applied is connected to a repeater device through HMI,

2 illustrates a configuration of an embodiment of a source device to which the present invention is applied;

3 is a flowchart illustrating an embodiment of an audio output setting method of a source device according to the present invention;

4 and 5 illustrate embodiments of audio specification information of a repeater device to which the present invention is applied.

[Description of Drawings]

100: source device 200: repeater device

300: sink device 10: optical disk

11: optical pickup 12: RF processing unit

13: MPEG decoder 14: digital signal processing unit

15: memory 16: microcomputer

17: OS D generation unit 18: HMI (HDMI)

Claims (8)

Identifying a audio support specification of the repeater device in a source device connected to a repeater device through an HDMI; And And setting the audio output to the repeater device according to the confirmed audio support specification. The method of claim 1, The first step is to receive and analyze EDID information of the repeater device through CEC communication of HMD, to check the audio support specification of the source device. How to set audio output. The method of claim 1, The audio support specification includes one or more of 5.1 channel audio, 7.1 channel audio, Dolby Digital, Dolby Digital Plus, DTS (DTS), and DTS-HD (DTS-HD). How to set audio output. The method of claim 1, In step 2, audio output to the repeater device is output according to the confirmed audio support specification, 5.1 channel audio, 7.1 channel audio, Dolby Digital, Dolby Digital Plus, DTS, DTS-DTS-. HD), the audio output setting method of the source device, characterized in that it is set to at least one. HDMI for connecting to a repeater device, A source device comprising control means for communicating with said repeater device, And the control means checks the audio support specification of the repeater device and sets the audio output to the repeater device according to the confirmed audio support specification. The method of claim 5, And the control means receives and analyzes EDID information of the repeater device through CEC communication of HMD and confirms an audio support specification. The method of claim 5, The audio support specification includes at least one of 5.1 channel audio, 7.1 channel audio, Dolby Digital, Dolby Digital Plus, DTS (DTS), and DTS-HD (DTS-HD). The method of claim 5, The control means, according to the confirmed audio support specification, the audio output to the repeater device, 5.1 channel audio, 7.1 channel audio, Dolby Digital, Dolby Digital Plus, DTS (DTS), DTS (DTS) Source device, characterized in that at least one of -HD).
KR1020080091737A 2008-09-18 2008-09-18 Source device and method for setting audio out of source device KR20100032735A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015137717A1 (en) * 2014-03-12 2015-09-17 엘지전자(주) Device and method for transmitting and receiving data using hdmi

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015137717A1 (en) * 2014-03-12 2015-09-17 엘지전자(주) Device and method for transmitting and receiving data using hdmi

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