WO2010146686A1 - Video display device and audio reproduction method thereof - Google Patents

Video display device and audio reproduction method thereof Download PDF

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Publication number
WO2010146686A1
WO2010146686A1 PCT/JP2009/061094 JP2009061094W WO2010146686A1 WO 2010146686 A1 WO2010146686 A1 WO 2010146686A1 JP 2009061094 W JP2009061094 W JP 2009061094W WO 2010146686 A1 WO2010146686 A1 WO 2010146686A1
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audio
video
speaker
built
audio signal
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PCT/JP2009/061094
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French (fr)
Japanese (ja)
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大輔 森脇
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Ｎｅｃディスプレイソリューションズ株式会社
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Priority to JP2011519364A priority Critical patent/JP5115775B2/en
Priority to PCT/JP2009/061094 priority patent/WO2010146686A1/en
Publication of WO2010146686A1 publication Critical patent/WO2010146686A1/en

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    • 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
    • H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages

Definitions

  • the present invention relates to a video display device including an audio output terminal, a built-in speaker, and a plurality of audio input terminals, and an audio reproduction method thereof.
  • a video display device having an audio output terminal for outputting an audio signal to the outside, a built-in speaker that reproduces audio according to the audio signal, and a plurality of audio input terminals to which the audio signal is input from the outside It is used for the purpose of reproducing an audio signal corresponding to the video by an internal speaker or an external speaker connected to the audio output terminal while reproducing the video according to the video signal input from the video input terminal.
  • Patent Document 1 discloses a television in which the sound of the built-in speaker is turned off when headphones are connected to the sound output terminal, and the sound output of the built-in speakers is turned on when headphones are removed from the sound output terminal. A receiver is described.
  • the audio signal supply source (audio input terminal) and audio to be supplied to the built-in speaker to the user using an operation switch, a remote controller or a unique menu image provided on the exterior surface of the video display device It is necessary to select the supply source (audio input terminal) of the audio signal output from the output terminal, and to set whether to mute the sound of the built-in speaker.
  • the supply source (audio input terminal) of the audio signal output from the output terminal it is necessary to select which video input terminal to display a video signal input from among a plurality of video input terminals. It becomes complicated.
  • Patent Document 2 A configuration example for controlling on / off of the built-in speaker while reducing the setting operation by the user is described in Patent Document 2, for example.
  • Patent Literature 2 when the mute switch is operated, the audio output corresponding to the video signal from the built-in speaker is stopped, and the audio signal output from the playback device that reproduces the audio data recorded on the recording medium is incorporated.
  • a television receiver that plays back with a speaker is described.
  • the television receiver described in Patent Document 2 proposes a configuration limited to applications such as video games, and the built-in speaker and the audio output terminal have different audio depending on the user's application. It cannot supply a signal.
  • the video display device of the present invention is a video display device including an audio output terminal, a built-in speaker, and a plurality of audio input terminals, A video / audio control circuit for switching an audio signal input destination from the plurality of audio input terminals and turning on / off an audio signal supplied to the built-in speaker;
  • a processing device that turns on the sound output of the built-in speaker when outputting a sound signal different from the sound signal from the sound output terminal;
  • the audio reproduction method of the present invention is an audio reproduction method for a video display device including an audio output terminal, a built-in speaker, and a plurality of audio input terminals, When outputting the same audio signal as the audio signal supplied to the internal speaker from the audio output terminal, turn off the audio output of the internal speaker, When an audio signal different from the audio signal supplied to the internal speaker is output from the audio output terminal, the audio output of the internal speaker is turned on.
  • FIG. 1 is a block diagram illustrating a configuration example of a video display system.
  • FIG. 2 is a block diagram showing a configuration example of the video display device of the present invention.
  • FIG. 3 is a block diagram illustrating a configuration example of a processing apparatus included in the video display apparatus illustrated in FIG.
  • FIG. 4 is a flowchart showing the processing procedure of the audio reproduction method of the present invention.
  • FIG. 5 is a flowchart showing the processing procedure of the audio reproduction method of the present invention.
  • FIG. 1 is a block diagram showing a configuration example of a video display system
  • FIG. 2 is a block diagram showing a configuration example of a video display device of the present invention.
  • a video display system includes a video display device 1 that reproduces video and audio, and a video signal and audio signal based on video data and audio data stored in a recording medium, a memory, or the like.
  • 1 includes a plurality of video / audio generators 2 supplied to 1 and an audio output device 3 that reproduces audio in accordance with an audio signal output from the video display device 1.
  • FIG. 1 shows an example in which two video / audio generators 2 and one audio output device 3 are connected to the video display device 1.
  • the video display device 1 is a projector or a direct-view display device having an audio output terminal, a built-in speaker, a plurality of audio input terminals, and a video input terminal.
  • the video / audio generation device 2 is a device that outputs a video signal and an audio signal, such as a playback device such as a DVD player or an HDD media player, a TV tuner, a personal computer, or the like.
  • the video / audio generation device 2 may be a device that outputs only audio signals, such as a CD player or a memory player.
  • the audio output device 3 is an external speaker that reproduces audio according to an input audio signal, a projector stand, a TV stand, or the like that includes an audio input terminal and a built-in speaker.
  • the video display device 1 of the present invention includes a display panel 11 that displays video according to a video signal, a built-in speaker 12 that plays back audio according to the audio signal, and a first to which the video signal is input.
  • a video / audio control circuit 18 for switching the supply destination of the input video signal and audio signal and turning on / off the audio signal supplied to the built-in speaker, and a processing device for controlling the operation of the entire video display device 1. 19.
  • first video input terminal 13 and second video input terminal 14 includes two sets of video input terminals (first video input terminal 13 and second video input terminal 14) and audio input terminals (first audio input terminal 15 and second audio input terminal).
  • an input terminal 16 a first video / audio generator 2 1 and the first video input terminal 13 and a first audio input terminal 15 is connected
  • a second video / audio generator 2 Paragraph 2 shows an example in which two video input terminals 14 and a second audio input terminal 16 are connected.
  • the video display apparatus 1 shown in FIG. 2 includes a single audio output terminal 17, any of the first video / audio generator 2 first or second video / audio generator 2 2 input from the speech signal An example in which either one can be output from the audio output terminal 17 is shown.
  • the number of audio output terminals 17 is not necessarily one, and the video display device 1 may include a plurality of audio output terminals 17.
  • the video display device 1 shown in FIG. 2 can be set by the user using an operation switch (not shown) provided on the exterior surface, a remote controller, or a unique menu image.
  • an operation switch not shown
  • a video signal supply source (the first video input terminal 13 or the second video input terminal 14) to be supplied to the display panel 11 is selected.
  • the supply source first audio input terminal 15 or second audio input terminal 16 of the audio signal supplied to the built-in speaker 12 and the audio output terminal 17 is selected.
  • the video display device 1 of the present invention turns off the sound output of the built-in speaker 12 and supplies the audio signal supplied to the built-in speaker 12.
  • the audio output of the built-in speaker 12 is turned on.
  • FIG. 3 is a block diagram showing an example of the configuration of the processing device provided in the video display device shown in FIG.
  • the processing device 19 includes a CPU 41 that executes processing according to a program, a main storage device 42 that temporarily holds data necessary for processing by the CPU 41, data to be processed by the CPU 41, and post-processing
  • a CPU 41, a main storage device 42, a secondary storage device 43, a recording medium 44, an input IF unit 45, and a communication control unit 46 are connected by a bus 47. is there.
  • the CPU 41 executes the processing of the present invention described below by controlling the video / audio control circuit 18 according to the program recorded on the recording medium 44.
  • the recording medium 44 may be a magnetic disk, a semiconductor memory, an optical disk, or other recording medium.
  • the secondary storage device 43 is not necessarily provided in the processing device 19 and may be a device independent of the processing device 19.
  • 4 and 5 are flowcharts showing the processing procedure of the audio reproduction method of the present invention.
  • the video display device 1 the first video / audio generator 2 1 via the first video input terminal 13 and a first audio input terminal 15 is connected
  • the image display system second video / audio generator 2 S is connected via a second video input terminal 14 and a second audio input terminal 16 as an example, the audio reproducing method of the present invention
  • Configuration of the video display system is not intended to be limited to the configuration shown in FIG. 2, for example, the first video / audio generator 2 first or second video / audio generator 2 2 of either the speech signal It may be replaced with a sound reproducing device that outputs only the sound.
  • step A1 when the video display device 1 is activated by the user turning on the main power supply (step A1), the processing device 19 is set by the user using the operation switch, the remote controller, or the menu image.
  • step A2 The supply source of the video signal supplied to the display panel 11 is confirmed (step A2).
  • step A2 it is confirmed which of the first video input terminal 13 and the second video input terminal 14 is set to supply the video signal input from which video input terminal to the display panel 11.
  • the processing device 19 proceeds to the processing of step A 3 and uses the operation switch, the remote controller, or the menu image.
  • the supply source of the audio signal output from the audio output terminal 17 set by the user is confirmed.
  • the processing device 19 When the audio signal output from the audio output terminal 17 is an audio signal input from the first audio input terminal 15 corresponding to the video signal input from the first video input terminal 13, the processing device 19 It is determined that the audio signal output from the audio output terminal 17 and the audio signal supplied to the built-in speaker 12 are the same. Then, by controlling the video / audio control circuit 18, the audio signal input from the first audio input terminal 15 is supplied to the audio output terminal 17, and the audio output of the built-in speaker 12 is turned off (muted) (Ste A5). At this time, the processing device 19 may use a background art process that turns off the sound output of the built-in speaker 12 by detecting the connection of the sound output device 3 to the sound output terminal 17.
  • step A3 the audio signal output from the audio output terminal 17 is an audio signal input from the second audio input terminal 16 corresponding to the video signal input from the second video input terminal 14.
  • the processing device 19 determines that the audio signal output from the audio output terminal 17 is different from the audio signal supplied to the built-in speaker 12. Then, by controlling the video / audio control circuit 18, the audio signal input from the second audio input terminal 16 is supplied to the audio output terminal 17, and the audio output of the built-in speaker 12 is turned on (step A6). .
  • step A5 or step A6 the processing device 19 checks whether or not the user has switched the setting of the video input terminal or the audio input terminal (step A7 in FIG. 5). When the setting switching of the video input terminal or the audio input terminal occurs, the processing device 19 repeats the processing from step A2. If the setting switching of the video input terminal or the audio input terminal has not occurred, the process of step A7 is repeated.
  • the processing device 19 proceeds to the processing in step A4, and the operation switch, remote The source of the audio signal output from the audio output terminal set by the user using the controller or menu image is confirmed.
  • the processing device 19 determines that the audio signal output from the output terminal 17 is different from the audio signal supplied to the built-in speaker 12. Then, by controlling the video / audio control circuit 18, the audio signal input from the first audio input terminal 15 is supplied to the audio output terminal 17, and the audio output of the built-in speaker 12 is turned on (step A6). .
  • step A4 the audio signal output from the audio output terminal 17 is an audio signal input from the second audio input terminal 16 corresponding to the video signal input from the second video input terminal 14.
  • the processing device 19 determines that the audio signal output from the audio output terminal 17 and the audio signal supplied to the built-in speaker 12 are the same. Then, by controlling the video / audio control circuit 18, the audio signal input from the second audio input terminal 16 is supplied to the audio output terminal 17, and the audio output of the built-in speaker 12 is turned off (muted) (Ste A5).
  • the processing device 19 may use background art processing for turning off the sound output of the built-in speaker 12 by detecting the connection of the sound output device 3 to the sound output terminal 17.
  • step A5 or step A6 the processing device 19 checks whether or not the user has switched the setting of the video input terminal or the audio input terminal (step A7 in FIG. 5). When the setting switching of the video input terminal or the audio input terminal occurs, the processing device 19 repeats the processing from step A2. If the setting switching of the video input terminal or the audio input terminal has not occurred, the process of step A7 is repeated.
  • the video display device 1 includes two video input terminals and two audio input terminals corresponding to the video display terminal 1 is shown, but even in a configuration including three or more video input terminals and audio input terminals,
  • the video signals supplied to the display panel 11 and the corresponding audio signals are classified into other video signals and their audio signals, and the audio signals output from the audio output terminal 17 correspond to the video signals supplied to the display panel 11. If it is determined whether or not, the same processing as described above can be executed.
  • the audio signal output from the audio output terminal 17 and the audio signal supplied to the built-in speaker 12 are the same depending on whether or not the audio signal corresponds to the video signal supplied to the display panel 11.
  • the present invention can determine whether or not the audio signal output from the audio output terminal 17 shown in FIG. 2 and the audio signal supplied to the built-in speaker 12 are the same. Any determination method may be used.
  • the waveform of the audio signal output from the audio output terminal 17 and the waveform of the audio signal supplied to the built-in speaker 12 may be compared to determine whether or not they match. Further, by monitoring the output destination of each audio signal input to the video / audio control circuit 18, it may be determined whether or not the audio signal supplied to the audio output terminal 17 and the built-in speaker 12 is the same. .
  • the same audio signal as that supplied to the built-in speaker 12 is output from the audio output terminal 17.
  • the sound output of the built-in speaker 12 is turned off and a sound signal different from the sound signal supplied to the built-in speaker 12 is output from the sound output terminal 17, the sound output of the built-in speaker 12 is turned on.
  • Different audio signals can be supplied to the terminal 17 depending on the use of the user.
  • the user sets only the supply source (video input terminal) of the video signal to be displayed on the display panel 11 and the supply source (audio input terminal) of the audio signal output from the audio output terminal 17 for the video display device 1. Therefore, the setting operation by the user is reduced.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
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  • Television Receiver Circuits (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

Provided is a video display device including an audio output terminal, a built-in speaker, and a plurality of audio input terminals.  The audio output of the built-in speaker is turned OFF when an audio signal identical to the audio signal supplied to the built-in speaker is outputted from an audio output terminal.  The audio output of the built-in speaker is turned ON when an audio signal different from the audio signal supplied to the built-in speaker is outputted from the audio output terminal.

Description

映像表示装置及びその音声再生方法Video display device and audio reproduction method thereof
　本発明は、音声出力端子、内蔵スピーカー及び複数の音声入力端子を備えた映像表示装置及びその音声再生方法に関する。 The present invention relates to a video display device including an audio output terminal, a built-in speaker, and a plurality of audio input terminals, and an audio reproduction method thereof.
　一般に、外部へ音声信号を出力するための音声出力端子、音声信号にしたがって音声を再生する内蔵スピーカー及び外部から音声信号が入力される複数の音声入力端子を備えた映像表示装置（プロジェクター等）は、映像入力端子から入力される映像信号にしたがって映像を再生しつつ、内蔵スピーカーあるいは音声出力端子に接続された外部スピーカーによって該映像に対応する音声信号を再生する用途で用いられる。 In general, a video display device (projector or the like) having an audio output terminal for outputting an audio signal to the outside, a built-in speaker that reproduces audio according to the audio signal, and a plurality of audio input terminals to which the audio signal is input from the outside It is used for the purpose of reproducing an audio signal corresponding to the video by an internal speaker or an external speaker connected to the audio output terminal while reproducing the video according to the video signal input from the video input terminal.
　そのため、このような映像表示装置には、ユーザの設定操作が煩雑になるのを防止するため、音声出力端子に外部機器が接続されたか否かを検出し、外部機器の接続を検出した場合に内蔵スピーカーの音声を自動的にミュート（オフ）する機能を備えている。 Therefore, in such a video display device, in order to prevent the user's setting operation from being complicated, it is detected whether or not an external device is connected to the audio output terminal, and when the connection of the external device is detected. It has a function to automatically mute (turn off) the sound of the built-in speaker.
　例えば、特許文献１には、音声出力端子にヘッドホンが接続されているときは内蔵スピーカーの音声をオフにし、音声出力端子からヘッドホンが外されたときは内蔵スピーカーの音声出力をオンにするテレビジョン受像機が記載されている。 For example, Patent Document 1 discloses a television in which the sound of the built-in speaker is turned off when headphones are connected to the sound output terminal, and the sound output of the built-in speakers is turned on when headphones are removed from the sound output terminal. A receiver is described.
　しかしながら、上述した背景技術の映像表示装置では、内蔵スピーカーと音声出力端子とに異なる音声信号を供給することができないため、用途が限定されてしまう問題がある。 However, in the video display device of the background art described above, there is a problem that the use is limited because different audio signals cannot be supplied to the built-in speaker and the audio output terminal.
　そこで、上記音声出力端子に対する外部機器の接続有無に応じて内蔵スピーカーの音声出力をオン・オフする機能を取り除けば、内蔵スピーカーと音声出力端子とに異なる音声信号を供給できる。 Therefore, if the function of turning on / off the sound output of the built-in speaker according to whether or not an external device is connected to the sound output terminal is removed, different sound signals can be supplied to the built-in speaker and the sound output terminal.
　しかしながら、その場合は、映像表示装置の外装面に設けられた操作スイッチ、リモートコントローラあるいは独自のメニュー画像等を用いて、ユーザに内蔵スピーカーに供給する音声信号の供給元（音声入力端子）及び音声出力端子から出力する音声信号の供給元（音声入力端子）を選択させると共に、内蔵スピーカーの音声をミュートするか否かも併せて設定させる必要がある。通常、このような映像表示装置では、複数の映像入力端子のうち、どの映像入力端子から入力された映像信号を表示するかも選択する必要があるため、ユーザによる映像表示装置の設定操作が非常に煩雑になってしまう。 However, in that case, the audio signal supply source (audio input terminal) and audio to be supplied to the built-in speaker to the user using an operation switch, a remote controller or a unique menu image provided on the exterior surface of the video display device It is necessary to select the supply source (audio input terminal) of the audio signal output from the output terminal, and to set whether to mute the sound of the built-in speaker. Usually, in such a video display device, it is necessary to select which video input terminal to display a video signal input from among a plurality of video input terminals. It becomes complicated.
　なお、ユーザによる設定操作を軽減しつつ、内蔵スピーカーのオン・オフを制御する構成例は、例えば特許文献２に記載されている。特許文献２には、ミュートスイッチが操作されると、内蔵スピーカーによる映像信号に対応する音声出力を停止すると共に、記録媒体に記録された音声データを再生する再生装置から出力された音声信号を内蔵スピーカーで再生するテレビジョン受像機が記載されている。但し、この特許文献２に記載されたテレビジョン受像機は、ビデオゲーム等の用途に限定した構成を提案したものであり、上記内蔵スピーカーと音声出力端子とに、ユーザの用途に応じて異なる音声信号を供給できるものでない。 A configuration example for controlling on / off of the built-in speaker while reducing the setting operation by the user is described in Patent Document 2, for example. In Patent Literature 2, when the mute switch is operated, the audio output corresponding to the video signal from the built-in speaker is stopped, and the audio signal output from the playback device that reproduces the audio data recorded on the recording medium is incorporated. A television receiver that plays back with a speaker is described. However, the television receiver described in Patent Document 2 proposes a configuration limited to applications such as video games, and the built-in speaker and the audio output terminal have different audio depending on the user's application. It cannot supply a signal.
特開２００５－３３３５５１号公報JP 2005-333551 A 特開２００３－１２５２９９号公報JP 2003-125299 A
　そこで本発明は、ユーザの設定操作を軽減しつつ、内蔵スピーカーと音声出力端子とにユーザの用途に応じて異なる音声信号を供給できる映像表示装置及びその音声再生方法を提供することを目的とする。 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a video display device that can supply different audio signals to a built-in speaker and an audio output terminal according to a user's application and an audio reproduction method thereof while reducing user setting operations. .
　上記目的を達成するため本発明の映像表示装置は、音声出力端子、内蔵スピーカー及び複数の音声入力端子を備えた映像表示装置であって、
　前記複数の音声入力端子から入力された音声信号の供給先を切り替えると共に、前記内蔵スピーカーに供給する音声信号をオン／オフする映像／音声制御回路と、
　前記映像／音声制御回路を制御することで、前記内蔵スピーカーに供給する音声信号と同じ音声信号を前記音声出力端子から出力させる場合は前記内蔵スピーカーの音声出力をオフさせ、前記内蔵スピーカーに供給する音声信号と異なる音声信号を前記音声出力端子から出力させる場合は前記内蔵スピーカーの音声出力をオンさせる処理装置と、
を有する。 In order to achieve the above object, the video display device of the present invention is a video display device including an audio output terminal, a built-in speaker, and a plurality of audio input terminals,
A video / audio control circuit for switching an audio signal input destination from the plurality of audio input terminals and turning on / off an audio signal supplied to the built-in speaker;
When the audio signal that is the same as the audio signal supplied to the internal speaker is output from the audio output terminal by controlling the video / audio control circuit, the audio output of the internal speaker is turned off and supplied to the internal speaker. A processing device that turns on the sound output of the built-in speaker when outputting a sound signal different from the sound signal from the sound output terminal;
Have
　一方、本発明の音声再生方法は、音声出力端子、内蔵スピーカー及び複数の音声入力端子を備えた映像表示装置の音声再生方法であって、
　前記内蔵スピーカーに供給する音声信号と同じ音声信号を前記音声出力端子から出力する場合は前記内蔵スピーカーの音声出力をオフにし、
　前記内蔵スピーカーに供給する音声信号と異なる音声信号を前記音声出力端子から出力する場合は前記内蔵スピーカーの音声出力をオンにする方法である。 On the other hand, the audio reproduction method of the present invention is an audio reproduction method for a video display device including an audio output terminal, a built-in speaker, and a plurality of audio input terminals,
When outputting the same audio signal as the audio signal supplied to the internal speaker from the audio output terminal, turn off the audio output of the internal speaker,
When an audio signal different from the audio signal supplied to the internal speaker is output from the audio output terminal, the audio output of the internal speaker is turned on.
図１は、映像表示システムの一構成例を示すブロック図である。FIG. 1 is a block diagram illustrating a configuration example of a video display system. 図２は、本発明の映像表示装置の一構成例を示すブロック図である。FIG. 2 is a block diagram showing a configuration example of the video display device of the present invention. 図３は、図２に示した映像表示装置が備える処理装置の一構成例を示すブロック図である。FIG. 3 is a block diagram illustrating a configuration example of a processing apparatus included in the video display apparatus illustrated in FIG. 図４は、本発明の音声再生方法の処理手順を示すフローチャートである。FIG. 4 is a flowchart showing the processing procedure of the audio reproduction method of the present invention. 図５は、本発明の音声再生方法の処理手順を示すフローチャートである。FIG. 5 is a flowchart showing the processing procedure of the audio reproduction method of the present invention.
　次に本発明について図面を用いて説明する。 Next, the present invention will be described with reference to the drawings.
　図１は映像表示システムの一構成例を示すブロック図であり、図２は本発明の映像表示装置の一構成例を示すブロック図である。 FIG. 1 is a block diagram showing a configuration example of a video display system, and FIG. 2 is a block diagram showing a configuration example of a video display device of the present invention.
　図１に示すように、映像表示システムは、映像及び音声を再生する映像表示装置１と、記録メディアやメモリ等に格納された映像データ及び音声データに基づいて映像信号及び音声信号を映像表示装置１に供給する複数の映像／音声発生装置２と、映像表示装置１から出力された音声信号にしたがって音声を再生する音声出力装置３とを有する構成である。図１は、映像表示装置１に、２台の映像／音声発生装置２及び１台の音声出力装置３が接続された例を示している。 As shown in FIG. 1, a video display system includes a video display device 1 that reproduces video and audio, and a video signal and audio signal based on video data and audio data stored in a recording medium, a memory, or the like. 1 includes a plurality of video / audio generators 2 supplied to 1 and an audio output device 3 that reproduces audio in accordance with an audio signal output from the video display device 1. FIG. 1 shows an example in which two video / audio generators 2 and one audio output device 3 are connected to the video display device 1.
　映像表示装置１は、音声出力端子、内蔵スピーカー及び複数の音声入力端子や映像入力端子を備えたプロジェクターや直視型のディスプレイ装置である。 The video display device 1 is a projector or a direct-view display device having an audio output terminal, a built-in speaker, a plurality of audio input terminals, and a video input terminal.
　映像／音声発生装置２は、ＤＶＤプレイヤーやＨＤＤメディアプレイヤー等の再生装置、ＴＶチューナー、パーソナルコンピュータ等、映像信号と音声信号をそれぞれ出力する装置である。なお、映像／音声発生装置２は、ＣＤプレイヤーやメモリプレイヤーのように音声信号だけを出力する装置であってもよい。 The video / audio generation device 2 is a device that outputs a video signal and an audio signal, such as a playback device such as a DVD player or an HDD media player, a TV tuner, a personal computer, or the like. The video / audio generation device 2 may be a device that outputs only audio signals, such as a CD player or a memory player.
　音声出力装置３は、入力される音声信号にしたがって音声を再生する外部スピーカー、音声入力端子及び内蔵スピーカーを備えるプロジェクタースタンドやテレビスタンド等である。 The audio output device 3 is an external speaker that reproduces audio according to an input audio signal, a projector stand, a TV stand, or the like that includes an audio input terminal and a built-in speaker.
　図２に示すように、本発明の映像表示装置１は、映像信号にしたがって映像を表示する表示パネル１１と、音声信号にしたがって音声を再生する内蔵スピーカー１２と、映像信号が入力される第１の映像入力端子１３及び第２の映像入力端子１４と、音声信号が入力される第１の音声入力端子１５及び第２の音声入力端子１６と、音声信号を外部へ出力するための音声出力端子１７と、入力された映像信号及び音声信号の供給先を切り替えると共に、内蔵スピーカーに供給する音声信号をオン／オフする映像／音声制御回路１８と、映像表示装置１全体の動作を制御する処理装置１９とを備えている。 As shown in FIG. 2, the video display device 1 of the present invention includes a display panel 11 that displays video according to a video signal, a built-in speaker 12 that plays back audio according to the audio signal, and a first to which the video signal is input. Video input terminal 13 and second video input terminal 14, first audio input terminal 15 and second audio input terminal 16 to which an audio signal is input, and audio output terminal for outputting the audio signal to the outside. 17, a video / audio control circuit 18 for switching the supply destination of the input video signal and audio signal and turning on / off the audio signal supplied to the built-in speaker, and a processing device for controlling the operation of the entire video display device 1. 19.
　図２に示す映像表示装置１は、２組の映像入力端子（第１の映像入力端子１３及び第２の映像入力端子１４）及び音声入力端子（第１の音声入力端子１５及び第２の音声入力端子１６）を備え、第１の映像／音声発生装置２１と第１の映像入力端子１３及び第１の音声入力端子１５とが接続され、第２の映像／音声発生装置２２と第２の映像入力端子１４及び第２の音声入力端子１６とが接続された例を示している。 2 includes two sets of video input terminals (first video input terminal 13 and second video input terminal 14) and audio input terminals (first audio input terminal 15 and second audio input terminal). an input terminal 16), a first video / audio generator 2 1 and the first video input terminal 13 and a first audio input terminal 15 is connected, a second video / audio generator 2 Paragraph 2 shows an example in which two video input terminals 14 and a second audio input terminal 16 are connected.
　また、図２に示す映像表示装置１は、一つの音声出力端子１７を備え、第１の映像／音声発生装置２１または第２の映像／音声発生装置２２から入力された音声信号のいずれか一方を音声出力端子１７から出力できる例を示している。音声出力端子１７は１つである必要はなく、映像表示装置１は、複数の音声出力端子１７を備えていてもよい。 The video display apparatus 1 shown in FIG. 2 includes a single audio output terminal 17, any of the first video / audio generator 2 first or second video / audio generator 2 2 input from the speech signal An example in which either one can be output from the audio output terminal 17 is shown. The number of audio output terminals 17 is not necessarily one, and the video display device 1 may include a plurality of audio output terminals 17.
　図２に示す映像表示装置１は、その外装面に設けられた不図示の操作スイッチ、リモートコントローラあるいは独自のメニュー画像等を利用してユーザにより各種の設定が可能であり、処理装置１９は、該設定内容に基づいて映像／音声制御回路１８を制御することで、表示パネル１１に供給する映像信号の供給元（第１の映像入力端子１３または第２の映像入力端子１４）を選択すると共に内蔵スピーカー１２及び音声出力端子１７に供給する音声信号の供給元（第１の音声入力端子１５または第２の音声入力端子１６）を選択する。 The video display device 1 shown in FIG. 2 can be set by the user using an operation switch (not shown) provided on the exterior surface, a remote controller, or a unique menu image. By controlling the video / audio control circuit 18 based on the set contents, a video signal supply source (the first video input terminal 13 or the second video input terminal 14) to be supplied to the display panel 11 is selected. The supply source (first audio input terminal 15 or second audio input terminal 16) of the audio signal supplied to the built-in speaker 12 and the audio output terminal 17 is selected.
　本発明の映像表示装置１は、内蔵スピーカー１２に供給する音声信号と同じ音声信号を音声出力端子１７から出力する場合は内蔵スピーカー１２の音声出力をオフにし、内蔵スピーカー１２に供給する音声信号と異なる音声信号を音声出力端子１７から出力する場合は内蔵スピーカー１２の音声出力をオンにする。 When the same audio signal as that supplied to the built-in speaker 12 is output from the audio output terminal 17, the video display device 1 of the present invention turns off the sound output of the built-in speaker 12 and supplies the audio signal supplied to the built-in speaker 12. When a different audio signal is output from the audio output terminal 17, the audio output of the built-in speaker 12 is turned on.
　図３は図２に示した映像表示装置が備える処理装置の一構成例を示すブロック図である。 FIG. 3 is a block diagram showing an example of the configuration of the processing device provided in the video display device shown in FIG.
　図３に示すように、処理装置１９は、プログラムにしたがって処理を実行するＣＰＵ４１と、ＣＰＵ４１の処理で必要なデータを一時的に保持する主記憶装置４２と、ＣＰＵ４１の処理対象のデータや処理後のデータが格納される副記憶装置４３と、プログラムが格納される記録媒体と、上記操作スイッチやリモートコントローラ等から情報を受信するための入力ＩＦ（インタフェース）部４５と、上記映像／音声制御回路２と情報を送受信するための通信制御部４６とを備え、ＣＰＵ４１、主記憶装置４２、副記憶装置４３、記録媒体４４、入力ＩＦ部４５及び通信制御部４６がバス４７で接続された構成である。 As shown in FIG. 3, the processing device 19 includes a CPU 41 that executes processing according to a program, a main storage device 42 that temporarily holds data necessary for processing by the CPU 41, data to be processed by the CPU 41, and post-processing A secondary storage device 43 for storing the data, a recording medium for storing the program, an input IF (interface) unit 45 for receiving information from the operation switch, remote controller, and the like, and the video / audio control circuit 2 and a communication control unit 46 for transmitting and receiving information, and a CPU 41, a main storage device 42, a secondary storage device 43, a recording medium 44, an input IF unit 45, and a communication control unit 46 are connected by a bus 47. is there.
　ＣＰＵ４１は、記録媒体４４に記録されたプログラムにしたがって、映像／音声制御回路１８を制御することで、以下に記載する本発明の処理を実行する。なお、記録媒体４４は、磁気ディスク、半導体メモリ、光ディスクあるいはその他の記録媒体であってもよい。副記憶装置４３は、処理装置１９内に必ずしも備える必要はなく、処理装置１９から独立した装置であってもよい。 The CPU 41 executes the processing of the present invention described below by controlling the video / audio control circuit 18 according to the program recorded on the recording medium 44. The recording medium 44 may be a magnetic disk, a semiconductor memory, an optical disk, or other recording medium. The secondary storage device 43 is not necessarily provided in the processing device 19 and may be a device independent of the processing device 19.
　次に、本発明の音声再生方法について図面を用いて説明する。 Next, the audio reproduction method of the present invention will be described with reference to the drawings.
　図４及び図５は、本発明の音声再生方法の処理手順を示すフローチャートである。 4 and 5 are flowcharts showing the processing procedure of the audio reproduction method of the present invention.
　なお、以下では、図２に示したように、映像表示装置１に対して、第１の映像入力端子１３及び第１の音声入力端子１５を介して第１の映像／音声発生装置２１が接続され、第２の映像入力端子１４及び第２の音声入力端子１６を介して第２の映像／音声発生装置２Ｓが接続された映像表示システムを例にして、本発明の音声再生方法の処理手順を説明する。映像表示システムの構成は、図２に示した構成に限定されるものではなく、例えば第１の映像／音声発生装置２１または第２の映像／音声発生装置２２のいずれか一方を音声信号のみを出力する音声再生装置に代えてもよい。 In the following, as shown in FIG. 2, the video display device 1, the first video / audio generator 2 1 via the first video input terminal 13 and a first audio input terminal 15 is connected, the image display system second video / audio generator 2 S is connected via a second video input terminal 14 and a second audio input terminal 16 as an example, the audio reproducing method of the present invention A processing procedure will be described. Configuration of the video display system is not intended to be limited to the configuration shown in FIG. 2, for example, the first video / audio generator 2 first or second video / audio generator 2 2 of either the speech signal It may be replaced with a sound reproducing device that outputs only the sound.
　図４に示すように、ユーザが主電源を投入することで映像表示装置１が起動すると（ステップＡ１）、処理装置１９は、上記操作スイッチ、リモートコントローラまたはメニュー画像を用いてユーザが設定した、表示パネル１１に供給する映像信号の供給元を確認する（ステップＡ２）。ここでは、第１の映像入力端子１３及び第２の映像入力端子１４のうち、どの映像入力端子から入力された映像信号を表示パネル１１に供給する設定になっているのかを確認する。 As shown in FIG. 4, when the video display device 1 is activated by the user turning on the main power supply (step A1), the processing device 19 is set by the user using the operation switch, the remote controller, or the menu image. The supply source of the video signal supplied to the display panel 11 is confirmed (step A2). Here, it is confirmed which of the first video input terminal 13 and the second video input terminal 14 is set to supply the video signal input from which video input terminal to the display panel 11.
　表示パネル１１に供給する映像信号の供給元が第１の映像入力端子１３に設定されている場合、処理装置１９は、ステップＡ３の処理に移行し、上記操作スイッチ、リモートコントローラあるいはメニュー画像を用いてユーザが設定した、音声出力端子１７から出力する音声信号の供給元を確認する。 When the supply source of the video signal supplied to the display panel 11 is set to the first video input terminal 13, the processing device 19 proceeds to the processing of step A 3 and uses the operation switch, the remote controller, or the menu image. The supply source of the audio signal output from the audio output terminal 17 set by the user is confirmed.
　音声出力端子１７から出力する音声信号が、第１の映像入力端子１３から入力された映像信号に対応する、第１の音声入力端子１５から入力された音声信号である場合、処理装置１９は、音声出力端子１７から出力する音声信号と内蔵スピーカー１２に供給する音声信号とが同じであると判定する。そして、映像／音声制御回路１８を制御することで、第１の音声入力端子１５から入力された音声信号を音声出力端子１７へ供給し、内蔵スピーカー１２の音声出力をオフ（ミュート）にする（ステップＡ５）。このとき、処理装置１９は、音声出力端子１７に対する音声出力装置３の接続を検出することで内蔵スピーカー１２の音声出力をオフにする、背景技術の処理を利用してもよい。 When the audio signal output from the audio output terminal 17 is an audio signal input from the first audio input terminal 15 corresponding to the video signal input from the first video input terminal 13, the processing device 19 It is determined that the audio signal output from the audio output terminal 17 and the audio signal supplied to the built-in speaker 12 are the same. Then, by controlling the video / audio control circuit 18, the audio signal input from the first audio input terminal 15 is supplied to the audio output terminal 17, and the audio output of the built-in speaker 12 is turned off (muted) ( Step A5). At this time, the processing device 19 may use a background art process that turns off the sound output of the built-in speaker 12 by detecting the connection of the sound output device 3 to the sound output terminal 17.
　また、ステップＡ３において、音声出力端子１７から出力する音声信号が、第２の映像入力端子１４から入力される映像信号に対応する、第２の音声入力端子１６から入力された音声信号である場合、処理装置１９は、音声出力端子１７から出力する音声信号と内蔵スピーカー１２に供給する音声信号とが異なると判定する。そして、映像／音声制御回路１８を制御することで、第２の音声入力端子１６から入力された音声信号を音声出力端子１７へ供給し、内蔵スピーカー１２の音声出力をオンにする（ステップＡ６）。 In step A3, the audio signal output from the audio output terminal 17 is an audio signal input from the second audio input terminal 16 corresponding to the video signal input from the second video input terminal 14. The processing device 19 determines that the audio signal output from the audio output terminal 17 is different from the audio signal supplied to the built-in speaker 12. Then, by controlling the video / audio control circuit 18, the audio signal input from the second audio input terminal 16 is supplied to the audio output terminal 17, and the audio output of the built-in speaker 12 is turned on (step A6). .
　処理装置１９は、ステップＡ５またはステップＡ６の処理が終了すると、ユーザによる映像入力端子または音声入力端子の設定切り替えが発生したか否かを確認する（図５のステップＡ７）。映像入力端子または音声入力端子の設定切り替えが発生した場合、処理装置１９はステップＡ２からの処理を繰り返す。映像入力端子または音声入力端子の設定切り替えが発生していない場合はステップＡ７の処理を繰り返す。 When the processing of step A5 or step A6 is completed, the processing device 19 checks whether or not the user has switched the setting of the video input terminal or the audio input terminal (step A7 in FIG. 5). When the setting switching of the video input terminal or the audio input terminal occurs, the processing device 19 repeats the processing from step A2. If the setting switching of the video input terminal or the audio input terminal has not occurred, the process of step A7 is repeated.
　一方、ステップＡ２において、表示パネル１１に供給する映像信号の供給元が第２の映像入力端子１４に設定されている場合、処理装置１９は、ステップＡ４の処理に移行し、上記操作スイッチ、リモートコントローラあるいはメニュー画像を用いてユーザが設定した、音声出力端子から出力する音声信号の供給元を確認する。 On the other hand, when the source of the video signal supplied to the display panel 11 is set to the second video input terminal 14 in step A2, the processing device 19 proceeds to the processing in step A4, and the operation switch, remote The source of the audio signal output from the audio output terminal set by the user using the controller or menu image is confirmed.
　音声出力端子から出力する音声信号が、第１の映像入力端子１３から入力される映像信号に対応する、第１の音声入力端子１５から入力された音声信号である場合、処理装置１９は、音声出力端子１７から出力する音声信号と内蔵スピーカー１２に供給する音声信号とが異なると判定する。そして、映像／音声制御回路１８を制御することで、第１の音声入力端子１５から入力された音声信号を音声出力端子１７へ供給し、内蔵スピーカー１２の音声出力をオンにする（ステップＡ６）。 When the audio signal output from the audio output terminal is an audio signal input from the first audio input terminal 15 corresponding to the video signal input from the first video input terminal 13, the processing device 19 It is determined that the audio signal output from the output terminal 17 is different from the audio signal supplied to the built-in speaker 12. Then, by controlling the video / audio control circuit 18, the audio signal input from the first audio input terminal 15 is supplied to the audio output terminal 17, and the audio output of the built-in speaker 12 is turned on (step A6). .
　また、ステップＡ４において、音声出力端子１７から出力する音声信号が、第２の映像入力端子１４から入力された映像信号に対応する、第２の音声入力端子１６から入力された音声信号である場合、処理装置１９は、音声出力端子１７から出力する音声信号と内蔵スピーカー１２に供給する音声信号とが同じであると判定する。そして、映像／音声制御回路１８を制御することで、第２の音声入力端子１６から入力された音声信号を音声出力端子１７へ供給し、内蔵スピーカー１２の音声出力をオフ（ミュート）にする（ステップＡ５）。このとき、処理装置１９は、音声出力端子１７に対する音声出力装置３の接続を検出することで内蔵スピーカー１２の音声出力をオフにする、背景技術の処理を利用してもよい。 In step A4, the audio signal output from the audio output terminal 17 is an audio signal input from the second audio input terminal 16 corresponding to the video signal input from the second video input terminal 14. The processing device 19 determines that the audio signal output from the audio output terminal 17 and the audio signal supplied to the built-in speaker 12 are the same. Then, by controlling the video / audio control circuit 18, the audio signal input from the second audio input terminal 16 is supplied to the audio output terminal 17, and the audio output of the built-in speaker 12 is turned off (muted) ( Step A5). At this time, the processing device 19 may use background art processing for turning off the sound output of the built-in speaker 12 by detecting the connection of the sound output device 3 to the sound output terminal 17.
　処理装置１９は、ステップＡ５またはステップＡ６の処理が終了すると、ユーザによる映像入力端子または音声入力端子の設定切り替えが発生したか否かを確認する（図５のステップＡ７）。映像入力端子または音声入力端子の設定切り替えが発生した場合、処理装置１９はステップＡ２からの処理を繰り返す。映像入力端子または音声入力端子の設定切り替えが発生していない場合はステップＡ７の処理を繰り返す。 When the processing of step A5 or step A6 is completed, the processing device 19 checks whether or not the user has switched the setting of the video input terminal or the audio input terminal (step A7 in FIG. 5). When the setting switching of the video input terminal or the audio input terminal occurs, the processing device 19 repeats the processing from step A2. If the setting switching of the video input terminal or the audio input terminal has not occurred, the process of step A7 is repeated.
　なお、上記説明では、映像表示装置１が２つの映像入力端子及びそれに対応する２つの音声入力端子を備える例を示しているが、３つ以上の映像入力端子及び音声入力端子を備える構成でも、表示パネル１１に供給する映像信号及びそれに対応する音声信号と、その他の映像信号及びその音声信号とに分類し、音声出力端子１７から出力する音声信号が表示パネル１１に供給する映像信号に対応するか否かを判定すれば、上記と同様の処理を実行できる。 In the above description, an example in which the video display device 1 includes two video input terminals and two audio input terminals corresponding to the video display terminal 1 is shown, but even in a configuration including three or more video input terminals and audio input terminals, The video signals supplied to the display panel 11 and the corresponding audio signals are classified into other video signals and their audio signals, and the audio signals output from the audio output terminal 17 correspond to the video signals supplied to the display panel 11. If it is determined whether or not, the same processing as described above can be executed.
　また、上記説明では、表示パネル１１に供給する映像信号に対応する音声信号であるか否かに応じて、音声出力端子１７から出力する音声信号と内蔵スピーカー１２に供給する音声信号とが同じであるか否かを判定する例を示したが、本発明は、図２に示す音声出力端子１７から出力する音声信号と内蔵スピーカー１２に供給する音声信号とが同じであるか否かが判定できれば、その判定方法はどのような方法を用いてもよい。例えば、音声出力端子１７から出力する音声信号と内蔵スピーカー１２に供給する音声信号の波形をそれぞれ比較し、それらが一致するか否かによって判定してもよい。また、映像／音声制御回路１８に入力された各音声信号の出力先をモニターすることで、音声出力端子１７と内蔵スピーカー１２に供給する音声信号が同じであるか否かを判定してもよい。 In the above description, the audio signal output from the audio output terminal 17 and the audio signal supplied to the built-in speaker 12 are the same depending on whether or not the audio signal corresponds to the video signal supplied to the display panel 11. Although an example of determining whether or not there is an audio signal has been shown, the present invention can determine whether or not the audio signal output from the audio output terminal 17 shown in FIG. 2 and the audio signal supplied to the built-in speaker 12 are the same. Any determination method may be used. For example, the waveform of the audio signal output from the audio output terminal 17 and the waveform of the audio signal supplied to the built-in speaker 12 may be compared to determine whether or not they match. Further, by monitoring the output destination of each audio signal input to the video / audio control circuit 18, it may be determined whether or not the audio signal supplied to the audio output terminal 17 and the built-in speaker 12 is the same. .
　本発明によれば、音声出力端子１７、内蔵スピーカー１２及び複数の音声入力端子を有する映像表示装置１において、内蔵スピーカー１２に供給する音声信号と同じ音声信号を音声出力端子１７から出力する場合は内蔵スピーカー１２の音声出力をオフにし、内蔵スピーカー１２に供給する音声信号と異なる音声信号を音声出力端子１７から出力する場合は内蔵スピーカー１２の音声出力をオンにするため、内蔵スピーカー１２と音声出力端子１７とに、ユーザの用途に応じて異なる音声信号を供給できる。また、ユーザは、映像表示装置１に対して、表示パネル１１に表示する映像信号の供給元（映像入力端子）と音声出力端子１７から出力する音声信号の供給元（音声入力端子）のみを設定すればよいため、ユーザによる設定操作が軽減される。 According to the present invention, in the video display device 1 having the audio output terminal 17, the built-in speaker 12, and a plurality of audio input terminals, the same audio signal as that supplied to the built-in speaker 12 is output from the audio output terminal 17. When the sound output of the built-in speaker 12 is turned off and a sound signal different from the sound signal supplied to the built-in speaker 12 is output from the sound output terminal 17, the sound output of the built-in speaker 12 is turned on. Different audio signals can be supplied to the terminal 17 depending on the use of the user. Further, the user sets only the supply source (video input terminal) of the video signal to be displayed on the display panel 11 and the supply source (audio input terminal) of the audio signal output from the audio output terminal 17 for the video display device 1. Therefore, the setting operation by the user is reduced.
　以上、実施形態を参照して本願発明を説明したが、本願発明は上記実施形態に限定されものではない。本願発明の構成や詳細は本願発明のスコープ内で当業者が理解し得る様々な変更が可能である。 As mentioned above, although this invention was demonstrated with reference to embodiment, this invention is not limited to the said embodiment. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

Claims (4)

  1. 　音声出力端子、内蔵スピーカー及び複数の音声入力端子を備えた映像表示装置であって、
    　前記複数の音声入力端子から入力された音声信号の供給先を切り替えると共に、前記内蔵スピーカーに供給する音声信号をオン／オフする映像／音声制御回路と、
    　前記映像／音声制御回路を制御することで、前記内蔵スピーカーに供給する音声信号と同じ音声信号を前記音声出力端子から出力させる場合は前記内蔵スピーカーの音声出力をオフさせ、前記内蔵スピーカーに供給する音声信号と異なる音声信号を前記音声出力端子から出力させる場合は前記内蔵スピーカーの音声出力をオンさせる処理装置と、
    を有する映像表示装置。     A video display device comprising an audio output terminal, a built-in speaker and a plurality of audio input terminals,
    A video / audio control circuit for switching an audio signal input destination from the plurality of audio input terminals and turning on / off an audio signal supplied to the built-in speaker;
    When the audio signal that is the same as the audio signal supplied to the internal speaker is output from the audio output terminal by controlling the video / audio control circuit, the audio output of the internal speaker is turned off and supplied to the internal speaker. A processing device that turns on the sound output of the built-in speaker when outputting a sound signal different from the sound signal from the sound output terminal;
    A video display device.
  2. 　前記音声入力端子から入力される音声信号に対応した映像信号が入力される複数の映像入力端子を備え、
    　前記処理装置は、
    　映像を表示する表示パネルに供給する映像信号に対応する音声信号を前記音声出力端子から出力させる場合は、前記音声出力端子から出力する音声信号と前記内蔵スピーカーに供給する音声信号とが同じであると判定して前記内蔵スピーカーの音声出力をオフさせ、
    　前記表示パネルに供給する映像信号に対応しない音声信号を前記音声出力端子から出力させる場合は、前記音声出力端子から出力する音声信号と前記内蔵スピーカーに供給する音声信号とが異なると判定して前記内蔵スピーカーの音声出力をオンさせる請求項１記載の映像表示装置。     A plurality of video input terminals to which video signals corresponding to audio signals input from the audio input terminals are input;
    The processor is
    When an audio signal corresponding to a video signal supplied to a display panel that displays video is output from the audio output terminal, the audio signal output from the audio output terminal is the same as the audio signal supplied to the built-in speaker. And turn off the sound output of the built-in speaker,
    When outputting an audio signal not corresponding to the video signal supplied to the display panel from the audio output terminal, it is determined that the audio signal output from the audio output terminal is different from the audio signal supplied to the built-in speaker. The video display device according to claim 1, wherein the sound output of the built-in speaker is turned on.
  3. 　音声出力端子、内蔵スピーカー及び複数の音声入力端子を備えた映像表示装置の音声再生方法であって、
    　前記内蔵スピーカーに供給する音声信号と同じ音声信号を前記音声出力端子から出力する場合は前記内蔵スピーカーの音声出力をオフにし、
    　前記内蔵スピーカーに供給する音声信号と異なる音声信号を前記音声出力端子から出力する場合は前記内蔵スピーカーの音声出力をオンにする音声再生方法。     An audio playback method for a video display device including an audio output terminal, a built-in speaker, and a plurality of audio input terminals,
    When outputting the same audio signal as the audio signal supplied to the internal speaker from the audio output terminal, turn off the audio output of the internal speaker,
    An audio reproduction method for turning on the audio output of the internal speaker when outputting an audio signal different from the audio signal supplied to the internal speaker from the audio output terminal.
  4. 　映像を表示する表示パネルに供給する映像信号に対応する音声信号を前記音声出力端子から出力する場合は、前記音声出力端子から出力する音声信号と前記内蔵スピーカーに供給する音声信号とが同じであると判定して前記内蔵スピーカーの音声出力をオフにし、
    　前記表示パネルに供給する映像信号に対応しない音声信号を前記音声出力端子から出力する場合は、前記音声出力端子から出力する音声信号と前記内蔵スピーカーに供給する音声信号とが異なると判定して前記内蔵スピーカーの音声出力をオンにする請求項３記載の音声再生方法。     When an audio signal corresponding to a video signal supplied to a display panel that displays video is output from the audio output terminal, the audio signal output from the audio output terminal is the same as the audio signal supplied to the built-in speaker. And turn off the audio output of the built-in speaker,
    When an audio signal that does not correspond to the video signal supplied to the display panel is output from the audio output terminal, it is determined that the audio signal output from the audio output terminal is different from the audio signal supplied to the built-in speaker. 4. The sound reproduction method according to claim 3, wherein the sound output of the built-in speaker is turned on.
PCT/JP2009/061094 2009-06-18 2009-06-18 Video display device and audio reproduction method thereof WO2010146686A1 (en)

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JP2003125299A (en) * 2001-10-12 2003-04-25 Funai Electric Co Ltd Television receiver
JP2005333551A (en) * 2004-05-21 2005-12-02 Canon Inc Tv receiver
WO2007052625A1 (en) * 2005-10-31 2007-05-10 Matsushita Electric Industrial Co., Ltd. Audiovisual system
JP2007522716A (en) * 2004-01-23 2007-08-09 トムソン ライセンシング Selectable audio output configurations
JP2007295383A (en) * 2006-04-26 2007-11-08 Funai Electric Co Ltd Sound output device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003125299A (en) * 2001-10-12 2003-04-25 Funai Electric Co Ltd Television receiver
JP2007522716A (en) * 2004-01-23 2007-08-09 トムソン ライセンシング Selectable audio output configurations
JP2005333551A (en) * 2004-05-21 2005-12-02 Canon Inc Tv receiver
WO2007052625A1 (en) * 2005-10-31 2007-05-10 Matsushita Electric Industrial Co., Ltd. Audiovisual system
JP2007295383A (en) * 2006-04-26 2007-11-08 Funai Electric Co Ltd Sound output device

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