JPH04207875A - High definition television receiver - Google Patents
High definition television receiverInfo
- Publication number
- JPH04207875A JPH04207875A JP2340464A JP34046490A JPH04207875A JP H04207875 A JPH04207875 A JP H04207875A JP 2340464 A JP2340464 A JP 2340464A JP 34046490 A JP34046490 A JP 34046490A JP H04207875 A JPH04207875 A JP H04207875A
- Authority
- JP
- Japan
- Prior art keywords
- audio
- channel
- stereo
- phase addition
- phase
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000005236 sound signal Effects 0.000 claims abstract description 37
- 229940028444 muse Drugs 0.000 claims description 3
- GMVPRGQOIOIIMI-DWKJAMRDSA-N prostaglandin E1 Chemical compound CCCCC[C@H](O)\C=C\[C@H]1[C@H](O)CC(=O)[C@@H]1CCCCCCC(O)=O GMVPRGQOIOIIMI-DWKJAMRDSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Television Systems (AREA)
- Stereophonic System (AREA)
- Television Receiver Circuits (AREA)
- Color Television Systems (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は3−1方式4チャンネルステレオゲ2チャンネ
ルステレオでも楽しむことができる高品位テレビジョン
受信機に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a high-definition television receiver that can enjoy 3-1 system 4-channel stereo and 2-channel stereo.
従来の技術
高品位テレビジョン愛他“模は、きめ細や力・なテレビ
画像を大自面のワイドスクリーンに表示fることと、4
CHのデジタルPCM音声により、現行のテレビ放送で
は得られない迫力と臨場感などの新しい魅力ヲ釆めよう
とするもので、近年各国とも関心が高1つてさている。Conventional technology for high-definition television is the ability to display detailed and powerful television images on a wide screen, and
Using digital PCM audio on CH, the program aims to create a new appeal, such as power and realism that cannot be obtained with current television broadcasting, and there has been a high level of interest in this program in recent years in various countries.
この廃品位テレビ信号?帯域圧紬する方法としてMUS
E (Multipul Sub −NyquisL
Sampling Encoding )方式が日本放
送協会(NHK )により提案されている。内容の評丸
については、二宮佑−他「高品位テレビの衛星1チャン
ネル伝送方式」信学論ff、 Vol 、 J 68−
D、 No、 4゜PP 647〜654 (198
5) 、渡辺、竹ケIM:−ノAイビジョン音声ベース
バンド伝送用rv−呵時圧、陥1)PCM方式」電子情
報通は学会(昭和62年3月)VC示されていこの高品
位テレビジョン放送の音声信号のCH(チャンネル)以
は、Aそ一ドVC2いて4CHあり、これを、第2図に
示すように視聴者11’こ対して、高i(Mテレヒショ
ン音声チャンネル2の第1のチャンネルCH1に前方左
スピーカ3は、第2のチヤツキIvCH2を削万右スピ
ーカ4は、第3のチャンネルCH3’に前方中央スピー
カ5は、第4のチャンネルCH4を後方左ヌビーカ6お
よび後方右スピーカ7は、それぞれ害i4り当てる3−
1万式の4CHステレオ(前方3 CH、後方1cHの
計4CH)放送力;考見られている。This scrapped TV signal? MUS as a method to measure bandwidth
E (Multipul Sub-NyquisL
A sampling encoding method has been proposed by the Japan Broadcasting Corporation (NHK). For a review of the content, see Yu Ninomiya et al., “Satellite 1-channel transmission system for high-definition television,” IEICE Theory ff, Vol. J 68-
D, No, 4゜PP 647~654 (198
5) , Watanabe, Takeke IM: - No A Vision Audio Baseband Transmission RV - 2 Time Pressure, 1) PCM System,” Denshi Information Technology Society (March 1986) VC demonstrated this high quality There are 4 CHs (channels) of the audio signal of television broadcasting on A side and VC2, and as shown in Fig. The front left speaker 3 to the first channel CH1, the second chitsuki IvCH2, the right speaker 4, the front center speaker 5 to the third channel CH3', the rear left speaker 6 and the rear to the fourth channel CH4 The right speaker 7 hits each harm i4 3-
10,000-type 4CH stereo (3CH in the front, 1CH in the rear, total 4CH) broadcasting power is being considered.
これVこ対し、一般に従来の高品位テレビジョン受信機
の構成は第3図に示す構成とされている。In contrast, a conventional high-definition television receiver generally has a configuration shown in FIG. 3.
映像信号復調手段8は、&fUSE @号を入力し、映
像倍″Pj′ゲ復調して出力する。音声信号復調手段9
は、映像信号の垂直・局線期間に多重された音声(H号
を復調して、第1 E−ら第4のチャンネルCHI −
CH4の音声信号を出力する。音声モード判定手段lO
は、音声信号復調手段9が検出した音声制御符号を入力
として、音声モードを判定する。The video signal demodulation means 8 inputs the &fUSE @ signal, demodulates the video signal by multiplying it by "Pj'" and outputs it.The audio signal demodulation means 9
demodulates the audio (H signal) multiplexed in the vertical/station line period of the video signal and outputs it to the 1st E- to 4th channels CHI-
Outputs the audio signal of CH4. Audio mode determination means lO
determines the audio mode by inputting the audio control code detected by the audio signal demodulating means 9.
発明が解決しようとする課題
しかしながら従来の構成では、音7市モード判定手段1
0カ3−1ステレオモードと+」定したときには、第1
から第4のチャンネルCHI〜CH4の音声信号をその
まま出力するため、音声用スピーカとして2チヤンネル
用し刀・準備できないとき、また記録用として2チヤン
ネルの音声に限られたとき、3−1ステレオの効果を十
分に発揮で@ないという問題があった。Problems to be Solved by the Invention However, in the conventional configuration, the sound 7 city mode determination means 1
When set to 0/3-1 stereo mode, the first
Since the audio signals of the fourth channels CHI to CH4 are output as they are, when it is not possible to use two channels as an audio speaker, or when recording is limited to two channels of audio, the 3-1 stereo There was a problem that it was not fully effective.
本発明に上記間紡を解決するためは、3−1方式4チャ
ンネルステレオを2チヤンネルステレオでも某しむこと
ができる制品位テレビジョン受伯14ケ提供することケ
目的とする。In order to solve the above-mentioned problem, the present invention aims to provide a high-quality television that can enjoy 3-1 type 4-channel stereo as well as 2-channel stereo.
課題ケ解決するための手段
上記問題を解決するために本発明の高品位テレビジョン
受伯慟は、MUSE方式の高品位テレビジョン放送のP
CM音声信号を第1から第4の音声信号に1艮調する音
声信号復調手段と、削記廿声信号復調手段が復調した第
3のチャンネルを第1と第2のチャンネルに同位相で加
算する同位相加算手段と、削記哲座イお号復調手段が復
調した第4のチャンネルケ第1と第2のチャンネルに逆
位相で加算する逆位相加算手段と、前記音声復調手段が
検出した音声制御符号を入力として音声モードケ判定す
る音声モード判定手段と、前記音声復調手段が復調した
第1から第4のチャンネルの音声信号と前記同位相加算
手段および逆位相加算手段が加算した音声信号とを切9
挨えて出力する音声切り換え手段とを備えた構成である
。Means for Solving the Problems In order to solve the above problems, the high-definition television license of the present invention is based on the MUSE system high-definition television broadcasting
an audio signal demodulating means for modulating the CM audio signal from the first to the fourth audio signal; and adding the third channel demodulated by the demodulating audio signal demodulating means to the first and second channels in the same phase. an in-phase addition means for adding the fourth channel demodulated by the demodulation means to the first and second channels in opposite phases; audio mode determining means for determining the audio mode by inputting an audio control code; and audio signals of the first to fourth channels demodulated by the audio demodulating means and the audio signals added by the in-phase addition means and the anti-phase addition means. Cut 9
The configuration also includes a voice switching means for outputting the voice.
作用
上記構成により、音声モード判定手段が、受信音声信J
J15′を3−1ステレオ音声モードと判定したときに
は、音声切り候え手段は、同位相加算手段νよび逆位相
加算手段が加算した音声信8全出力するので3−1ステ
レオ音声全2チヤンネルステレオに寂換することかでさ
、しかもサラウンド音声を送る第4のチャンネル金左右
の音声を送る第1、第2のチャンネルに逆位相で1曝さ
れているのでサラウンドの効果を損なうこともなく、3
−1方式4チャンネルステレオを2チヤンネルステレオ
でも条しむことかできる。Operation With the above configuration, the voice mode determining means
When it is determined that J15' is in the 3-1 stereo audio mode, the audio selection means outputs all 8 audio signals added by the in-phase addition means ν and the anti-phase addition means, so that the 3-1 stereo audio becomes all 2 channel stereo. What's more, the 4th channel that sends the surround sound is exposed to the 1st and 2nd channels that send the left and right sounds in opposite phase, so the surround effect is not impaired.
-1 system 4-channel stereo can be broadcast as 2-channel stereo.
実施例
第1図に本発明の一笑施ゾjに係る高品位テレビジョン
受信″機の要部を示すブロック図で、高品位テレヒジョ
ン受信機i−i、映像復調手段11と、音声復調手W1
2と、音声モード判定中m13と、同位相加算手段14
と、逆位相加算手段15と、音声切り僕え手段16とを
扁えている。ここで、映像信号復調手段11はMUSE
倍号を入力し、復調映像を出力する。Embodiment FIG. 1 is a block diagram showing the main parts of a high-definition television receiver according to an embodiment of the present invention.
2, voice mode determining m13, and in-phase addition means 14
, an anti-phase addition means 15, and an audio cutting means 16. Here, the video signal demodulation means 11 uses MUSE
Input the double code and output the demodulated video.
音声信号復調手段12は映像信号の垂直帰線期m]に多
重された音声信号ヶ復調して第1から第4チヤンネルC
HI −CH4の音声信号を出力する。音声モード判定
手段13は音声信号復調手段12が検出した音声制御符
号を入力信号として音声モード全判足する。同位相加算
手段14は音声信号復調手段12が復調した第3のチャ
ンネルCHaケ第1と第2のチヤンネルCHI 、CH
2I/C向位相で加算する。逆位相加′鼻手収15に音
声信号復調手段12が復調した第4のチャンネルCH4
2躬1と第2のチャンネルCH1,CH2すこ逆位相で
加算する。音声切9侠え手段16は・哲声モード判定+
段13が、3−1ステレオ音声モードとも定した場合に
は、同位相J算手段14および逆位相加算手段15が加
算した音声信号を出力し、音声モード÷」定手段13が
、3−1ステレオ音声モードでにないと判定した場合に
は、音声復調手段12力S復調した第1〃ムら第4のチ
ャンネルCHI〜CH4の音声信号全出力する。The audio signal demodulating means 12 demodulates the audio signal multiplexed during the vertical retrace period m of the video signal and outputs it to the first to fourth channels C.
Outputs the audio signal of HI-CH4. The voice mode determining means 13 uses the voice control code detected by the voice signal demodulating means 12 as an input signal and adds all the voice modes. The in-phase addition means 14 adds the third channel CHa demodulated by the audio signal demodulation means 12 to the first and second channels CHI, CH.
2I/C direction phase is added. The fourth channel CH4 demodulated by the audio signal demodulation means 12 is added to the reverse phase addition signal 15.
2 and the second channels CH1 and CH2 are added with slightly opposite phases. Voice cut 9 fighting means 16 - Philosophy mode judgment +
When the stage 13 also determines the 3-1 stereo audio mode, the in-phase J calculating means 14 and the anti-phase adding means 15 output the added audio signals, and the audio mode ÷ "determining means 13 determines the 3-1 stereo audio mode." If it is determined that the stereo audio mode is not in effect, the audio demodulating means 12 outputs all the demodulated audio signals of the first to fourth channels CHI to CH4.
上記構成によれば、音声モード判定手#913が、受信
音声信号が3−1ヌテレオ音声モードと+」定したとき
VCは、音声切り換え手段16は、同位相加算手段14
および逆位相加算手段15が1算した音声信号全出力す
るので3−1ステレオ音声を2チヤンネルステレオに父
挨することができ、し刀・もサラウンド音声ヲ送る第4
のチャンネルCH41、左右の音声を送る第1.第2の
チャンネルに逆位相で加算しているのでサラウンドの効
果?損なうこともなく、3−1万式4チャンネルステレ
オを2チヤンネルステレオでも某しむことかでさる。According to the above configuration, when the audio mode determining means #913 determines that the received audio signal is in the 3-1 Nutero audio mode, the VC, the audio switching means 16, and the in-phase addition means 14
Since the anti-phase addition means 15 outputs all the audio signals calculated by 1, the 3-1 stereo audio can be converted into 2-channel stereo, and the 4th channel can send the surround audio.
Channel CH41, the 1st channel that sends left and right audio. Is it a surround effect because it is added to the second channel in opposite phase? You can even enjoy a 3-10,000-style 4-channel stereo as a 2-channel stereo without any damage.
発明の効果
以上のように本発明によりば、第3のチャンネル金弟1
と第2のチャンネ/L−に回位性で7I!]昇する同位
相加算手段と、第4のチャンネルを第1と第2のチャン
ネルに逆位相で加算する逆位相加算手段とを設けて、音
声モードも定千股が、3−1ステレオ音声モードと判定
したときVこは、音声切り換え手段は、同位相加算手段
および逆位相加算手段が加算した音声信8を出力するよ
うにしたので、3−1ステレオ音声ゲ2チヤンネルステ
レオに変換することができ、し〃・もサラウンド音声ヲ
送る第4のチャンネA/を左右の音声を送る第1、第2
のチャンネルに逆位相で710算されているのでサラウ
ンドの効果を損なうこともなく、3−1方式4チャンネ
ルステレオ全2チャンネルステレオでも楽しむことがで
きる。Effects of the Invention As described above, according to the present invention, the third channel
and 7I with dislocation to the second channel/L-! ] By providing an in-phase addition means for adding the fourth channel to the first and second channels and an anti-phase addition means for adding the fourth channel to the first and second channels in an opposite phase, the audio mode can also be changed to a constant 3-1 stereo audio mode. When this is determined, the audio switching means outputs the audio signal 8 added by the in-phase addition means and the anti-phase addition means, so that it is possible to convert the 3-1 stereo audio signal to 2-channel stereo. Yes, the fourth channel A/, which sends surround sound, is connected to the first and second channels, which send left and right sound.
Since the channels are multiplied by 710 in opposite phase, the surround effect will not be lost, and you can enjoy the 3-1 system, 4 channel stereo, and 2 channel stereo.
第1dは本発明の一実施例に係る高品位テレビジョン受
@磯の要部を示すブロック図、第2図は3−1方式の4
CHステレオ方式を示す概略平UkJ図、第3図に従来
の高品位テレビジョン受信機の要部に7Fjブロック図
である。
11・・・吠塚偽号復調手段、12・・・音声信号復調
手段、13・・・音声モード判定手段、14・・・同位
相加算手段、15・・・逆位相加算手段、16・・・音
声切り換え手段。
代理人 森 本 表 私
案2図
〆Figure 1d is a block diagram showing the main parts of a high-definition television receiver @Iso according to an embodiment of the present invention, and Figure 2 is a 3-1 type 4
FIG. 3 is a schematic flat UkJ diagram showing the CH stereo system, and FIG. 3 is a 7Fj block diagram of the main parts of a conventional high-definition television receiver. DESCRIPTION OF SYMBOLS 11... Hozuka false code demodulation means, 12... Audio signal demodulation means, 13... Audio mode determination means, 14... In-phase addition means, 15... Anti-phase addition means, 16...・Audio switching means. Agent: Morimoto Table: Private draft 2 drawings〆
Claims (1)
声信号を第1から第4の音声信号に復調する音声信号復
調手段と、前記音声信号復調手段が復調した第3のチャ
ンネルを第1と第2のチャンネルに同位相で加算する同
位相加算手段と、前記音声信号復調手段が復調した第4
のチャンネルを第1と第2のチャンネルに逆位相で加算
する逆位相加算手段と、前記音声復調手段が検出した音
声制御符号を入力として音声モードを、判定する音声モ
ード判定手段と、前記音声復調手段が復調した第1から
第4のチャンネルの音声信号と前記同位相加算手段およ
び逆位相加算手段が加算した音声信号とを切り換えて出
力する音声切り換え手段とを備え、前記音声切り換え手
段は、前記音声モード判定手段が、3−1ステレオ音声
モードと判定したときには、前記同位相加算手段及び逆
位相加算手段が加算した音声信号を出力する構成とした
高品位テレビジョン受信機。1. Audio signal demodulation means for demodulating a PCM audio signal of MUSE system high-definition television broadcasting into first to fourth audio signals, and a third channel demodulated by the audio signal demodulation means to the first and second audio signals. an in-phase addition means for adding in the same phase to a fourth channel demodulated by the audio signal demodulation means;
anti-phase addition means for adding the channel to the first and second channels in opposite phase; audio mode determination means for determining the audio mode by inputting the audio control code detected by the audio demodulation means; and the audio demodulation means audio switching means for switching and outputting the audio signals of the first to fourth channels demodulated by the means and the audio signals added by the in-phase addition means and the anti-phase addition means; A high-definition television receiver configured to output an audio signal added by the in-phase addition means and the anti-phase addition means when the audio mode determination means determines the 3-1 stereo audio mode.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2340464A JPH04207875A (en) | 1990-11-30 | 1990-11-30 | High definition television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2340464A JPH04207875A (en) | 1990-11-30 | 1990-11-30 | High definition television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04207875A true JPH04207875A (en) | 1992-07-29 |
Family
ID=18337216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2340464A Pending JPH04207875A (en) | 1990-11-30 | 1990-11-30 | High definition television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04207875A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6850621B2 (en) | 1996-06-21 | 2005-02-01 | Yamaha Corporation | Three-dimensional sound reproducing apparatus and a three-dimensional sound reproduction method |
-
1990
- 1990-11-30 JP JP2340464A patent/JPH04207875A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6850621B2 (en) | 1996-06-21 | 2005-02-01 | Yamaha Corporation | Three-dimensional sound reproducing apparatus and a three-dimensional sound reproduction method |
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