JPS6276985A - Formation of television signal - Google Patents
Formation of television signalInfo
- Publication number
- JPS6276985A JPS6276985A JP60217007A JP21700785A JPS6276985A JP S6276985 A JPS6276985 A JP S6276985A JP 60217007 A JP60217007 A JP 60217007A JP 21700785 A JP21700785 A JP 21700785A JP S6276985 A JPS6276985 A JP S6276985A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- image signal
- additional
- picture
- picture signal
- 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
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- 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、現行テレビジョン放送と両立性を有し、かつ
現行テレビジョン方式よりも横長の画面縦横比を有する
テレビジョン信号の形成方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for forming a television signal that is compatible with current television broadcasting and has a screen aspect ratio that is wider than the current television system. be.
従来の技術
現在のＮ Ｔ Ｓ Ｃ（Ｎａｔｉｏｎａｌ Ｔｅ１ｅｖ
ｉｓｉｏｎ ＳｙｓｔｅｍＣｏｍｍ ｉ ｔ ｔｅｅ）
方式によるカラーテレビジョン放送が昭和３５年に開始
されて以来、約２５年が経過した。Conventional TechnologyCurrent National Telecommunications (NTSC)
system)
Approximately 25 years have passed since color television broadcasting using this method began in 1960.
その間、高精細な画面に対する要求と、テレビジョン受
信機の性能向上に伴い、各種の新しいテレビジョン方式
がＩｇされている。また、サービスされる番組の内容自
体も単なるスタジオ番組や中継番組などから、シネマサ
イズの映画の放送など、より高画質で臨場感を伴う映像
を有する番組へと変化してきている。Meanwhile, with the demand for high-definition screens and improvements in the performance of television receivers, various new television systems have been introduced. Furthermore, the content of the programs provided is changing from simple studio programs and relay programs to programs with higher quality and more realistic images, such as cinema-sized movie broadcasts.
このような背景のもとで、日本放送協会（Ｎｌ−（Ｋ）
は高品位テレビジョン方式を提案した。（例えば、文献
特集高品位テレビジョン（テレビジョン学会誌 第３６
巻、第１０号、１９８２年）参照）。その内容は、走査
線数１１２５本、飛越走査、輝度水平帯域幅２０Ｍｌ１
ｚ、と高精細化を計ると共に、臨場感などの視覚工学の
立場から画面縦横比を３＝５としたものである。この方
式はクローズド系ではすでにほぼ完成し、さらに衛星放
送の開始とともに衛星１チヤンネルの帯域で問品位テレ
ビを伝送するＭＵＳＥ方式（文献、二宮佑−他、高品位
テレビの衛星１チャンネル伝送方式（ＭＵＳＥ）（電子
通信学会技術研究報告 ＩＥ８４−７２．１９８４年）
）を提案し、実験を進めている。Against this background, the Japan Broadcasting Corporation (Nl-(K)
proposed a high-definition television system. (For example, Literature Special Feature on High-Definition Television (Television Society Journal No. 36)
Volume, No. 10, 1982)). Its contents include 1125 scanning lines, interlaced scanning, and a luminance horizontal bandwidth of 20 Ml1.
In addition to aiming for high definition, the screen aspect ratio was set to 3 = 5 from the perspective of visual engineering to create a sense of realism. This system has already been almost completed in the closed system, and with the start of satellite broadcasting, the MUSE system (Reference, Tasuku Ninomiya et al. ) (IEICE technical research report IE84-72.1984)
) and are conducting experiments.
一方現行放送は、走査線数５２５本、飛越走査、輝度水
平帯域幅４ 、２ Ｍ ｌｌｚ、画面縦横比３：４とい
う諸仕様を有している。（例えば、文献 放送技術双書
カラーテレビジョン 日本放送協会編、日本放送出版
協会、１９６１年。参照）しかし、現行テレビジョン受
信機は各種の改良を施してはいるもののクロスカラー（
輝度信号が色信号として復調されて、色に妨害を与える
現象）、クロスルミナンス（色信号が輝度信号として再
生され、再生輝度画面にドツト状の妨害を与える現象）
やインターレス妨害が発生している。また、前記番組と
して映画をサービスする場合には、その画面サイズを現
行のテレビジョン受信機の画面縦横比３：４になるよう
両端を切るか、もしくは上下（垂直）の方向に圧縮して
有効画面の縦横比を映画の値になるように送出している
。On the other hand, current broadcasting has specifications such as a number of scanning lines of 525, interlaced scanning, a horizontal luminance bandwidth of 4.2 Mllz, and a screen aspect ratio of 3:4. (For example, refer to the literature Broadcasting Technology Library, Color Television, edited by Japan Broadcasting Corporation, Japan Broadcasting Publishing Association, 1961.) However, although current television receivers have undergone various improvements,
A phenomenon in which a luminance signal is demodulated as a color signal and causes interference to colors), cross luminance (a phenomenon in which a color signal is reproduced as a luminance signal and causes a dot-shaped interference on the reproduced luminance screen)
or interlace interference is occurring. In addition, when providing a movie as the program, it is effective to cut off the screen size at both ends or compress it in the vertical (vertical) direction so that the screen aspect ratio of the current television receiver is 3:4. The aspect ratio of the screen is sent to match the movie value.
売可が解決しようとする問題点
以上のように、現行放送で映画番組や臨場感ある画面を
送出・サービスする場合、画面が一部カットされるとか
、画面面積が小さいなど、製作者の意図が十分に伝わら
ない、臨場感が損われるなどの問題があった。Problems that sales are trying to solve As mentioned above, when broadcasting movie programs and immersive screens in current broadcasting, there are cases where some parts of the screen are cut or the screen area is small, etc. There were problems such as not being able to fully convey the message and the sense of realism being lost.
本発明はかかる点に鑑みてなされたもので、現行テレビ
ジョン方式より横長の画面縦横比を有するテレビジョン
方式を提供することを目的とする。The present invention has been made in view of this point, and an object of the present invention is to provide a television system having a screen aspect ratio that is longer than the current television system.
問題点を解決するための手段
本発明は上記問題を解決するため、第１のテレビジョン
信号の周波数スペクトルの隙間に、第２のテレビジョン
信号の周波数スペクトルを多重すること、また第２のテ
レビジョン信号が伸張された周波数スペクトルを有する
こと、さらに第２のテレビジョン信号の周波数スペクト
ルの一部を前記第１のテレビジョン信号の色信号の帯域
内に前記第１のテレビジョン信号の色信号と輝度信号に
対し周波数オフセットの関係で多重するテレビジョン方
式を提供する。Means for Solving the Problems The present invention solves the above problems by multiplexing the frequency spectrum of a second television signal into the gap in the frequency spectrum of the first television signal, and a chrominance signal of the first television signal within a band of a chrominance signal of the first television signal; The present invention provides a television system that multiplexes a luminance signal and a luminance signal in a frequency offset relationship.
作用
本発明は上記した構成により、現行テレビジョン方式よ
り横長のテレビジョン原画像の両端の画像の周波数スペ
クトルを伸張し、現行画像のテレビジョン信号の色信号
帯域内の周波数スペクトルの隙間に多重して送り、再生
時に横長の画面縦横比（例えば３：５）を有する画像を
再生する。Effect of the Invention With the above-described configuration, the present invention expands the frequency spectrum of images at both ends of a horizontally long original television image compared to the current television system, and multiplexes it into the gap in the frequency spectrum within the color signal band of the television signal of the current image. When the image is played back, an image having a horizontally long screen aspect ratio (for example, 3:5) is played back.
実施例
第１図は本発明のテレビジョン方式の一実施例を示すブ
ロック図で、送り側（ａｌと受は側ｆｂｌとからなり１
は横長（現行テレビジョン方式よりも横長、具体的には
画面縦横比３：４よりも横長をさす。Embodiment FIG. 1 is a block diagram showing an embodiment of the television system of the present invention.
is horizontal (longer than the current television system, specifically longer than the screen aspect ratio of 3:4).
以下横長は前記意味で用いる。）の画像成分を有する画
像信号入力端子、２ば前記横長の画像信号から画面縦横
比３：４の部分の基本画像信号とそれ以外の画像である
追加画像信号と分離する画像信号分離部、３は基本画像
信号処理部、４は追加画像信号処理部、５は画像信号合
成部、６は合成された画像信号の出力される画像信号出
力端子、１１は前記合成された画像信号の入力される画
像信号入力端子、１２は前記合成された画像信号から前
記基本画像信号と追加画像信号とを分離する画像信号分
離部、１３は基本画像信号再生部、１４追加画像信号再
生部、１５は表示画像信号合成部、１６は横長の画面縦
横比を有する合成画像信号出力端子である。また、第２
図は本実施例の周波数スペクトル図であり、図中（ａｌ
、（ｂ）は現行ＮＴＳＣテレビジョン方式の周波数スペ
クトルを、ＦＣ） （ｄｌは本実施例の周波数スペクト
ルを示す。また第３図は画像の画面縦横比３：４および
３：５の１例図である。Hereinafter, horizontally long will be used in the above meaning. ); 2; an image signal separation unit that separates the horizontally long image signal into a basic image signal of a portion with a screen aspect ratio of 3:4 and an additional image signal of the other image; 3; 4 is a basic image signal processing section; 4 is an additional image signal processing section; 5 is an image signal synthesis section; 6 is an image signal output terminal to which the synthesized image signal is output; and 11 is an input terminal for the synthesized image signal. An image signal input terminal, 12 an image signal separation unit that separates the basic image signal and additional image signal from the combined image signal, 13 a basic image signal reproducing unit, 14 an additional image signal reproducing unit, and 15 a display image. The signal synthesis unit 16 is a synthesized image signal output terminal having a horizontally long screen aspect ratio. Also, the second
The figure is a frequency spectrum diagram of this example, and in the figure (al
, (b) shows the frequency spectrum of the current NTSC television system, and FC) (dl shows the frequency spectrum of this embodiment. Fig. 3 shows an example of the image screen aspect ratio of 3:4 and 3:5. It is.
テレビカメラなどで得られた１例として第３図（５）→
〜（Ｂｌに示す、横長の画像信号は第１図（ａｌの画像
信号入力端子１に入力され、画像信号分離部２で、第３
図人に示す基本画像信号と、同図［Ｂｌに示す追加画像
信号に分離され、前者は基本画像信号処理部３に、後者
は追加画像信号処理部４に加えられる。基本画像信号処
理部３では、画面縦横比３：４の現行の信号処理を行な
い、画像信号合成部５へ供給する。この時の輝度信号と
色信号の周波数スペクトルの関係を第２図（ａｌ （ｂ
）に示す。一方、追加画像信号処理部４では、第３図（
Ｂｌに示す追加画像信号のうち１例として、輝度信号の
みを伸張（例えば、時間的に４倍、スペクトル的には輝
度信号についていえば４Ｍｌ１ｚの周波数帯域をＩＭＩ
Ｉｚに変換し、４水平走査期間（４Ｈ）に骨柄して送る
）し、追加輝度信号Ｙｅを発生させ、一方色信号は追加
色信号Ｃｅとして４Ｈごとに画像信号合成部５に加える
。画像信号合成部５では、前記基本画像信号処理部３か
らの前記基本画像信号の周波数スペクトルの隙間に、前
記追加画像信号処理部４の出力である伸張された追加画
像信号の周波数スペクトルを、第２図（Ｃ１（ｄ）に示
す如く多重・合成し、合成画像信号として画像信号出力
端子６から出力される。この信号は、現行のテレビジョ
ン放送と同じ様に送出される。Figure 3 (5) is an example obtained using a TV camera, etc.
~(The horizontally long image signal shown in Bl is input to the image signal input terminal 1 in FIG.
The signal is separated into a basic image signal shown in the figure and an additional image signal shown in Bl in the same figure, the former being added to the basic image signal processing section 3 and the latter being added to the additional image signal processing section 4. The basic image signal processing unit 3 performs current signal processing with a screen aspect ratio of 3:4, and supplies the signal to the image signal synthesis unit 5. The relationship between the frequency spectra of the luminance signal and color signal at this time is shown in Figure 2 (al (b)
). On the other hand, in the additional image signal processing section 4, as shown in FIG.
As an example of the additional image signals shown in Bl, only the luminance signal is expanded (e.g., 4 times temporally, and spectrally, the frequency band of 4Ml1z for the luminance signal is expanded by IMI).
The color signals are converted into Iz and transmitted every 4 horizontal scanning periods (4H)) to generate an additional luminance signal Ye, while the color signal is added to the image signal synthesis unit 5 as an additional color signal Ce every 4H. The image signal synthesis section 5 adds the frequency spectrum of the expanded additional image signal, which is the output of the additional image signal processing section 4, to the gap between the frequency spectra of the basic image signal from the basic image signal processing section 3. As shown in FIG. 2 (C1(d)), the signals are multiplexed and combined and outputted from the image signal output terminal 6 as a composite image signal.This signal is sent out in the same manner as the current television broadcasting.
一方、受信、映像復調された、前記追加画像信号と基本
画像信号からなる合成画像信号は、第１図（ｂｌの画像
信号入力端子１１に入力され、画像信号分離部１２にお
いて、第２図（ａ） （ｂｌに示す基本画像信号牛、（
Ｃ） ｆｄ１図Ｙｅ、Ｃｅなどに示す追加画像信号に周
波数分離され、前者は基本画像信号再生部１３、後者は
追加画像信号再生部１４に供給される。基本画像信号再
生部１３では、前記基本画像信号を第２図（ａ） （ｂ
）における輝度信号と色信号とを分離し、赤青緑の３つ
原色信号（もしくは色差信号）として、表示画像信号合
成部１５に供給する。追加画像信号再生部１４では、第
２図に示す、追加輝度信号Ｙｅを圧縮（例えば時間的に
Ａ倍、スペクトル的には輝度信号についていえばＩ Ｍ
Ｈｚ−４ＭＨｚ） Ｉ、て前記の如＜４Ｈでもとの１枚
の追加画像信号の輝度信号成分を再生し、前記基本画像
信号から分離された、追加色信号Ｃｅの２つの信号から
第３図（Ｂ）に示す追加画像信号の赤、青、緑の３つの
原色信号（もしくは色差信号）に変換して表示画像信号
合成部１５に供給する。表示画像信号合成部１５では前
記の基本画像信号再生部１３からの出力と、追加画像信
号再生部１４からの出力とを合成（例えば、 ｙ赤
青緑の３つの原色信号の形）し、第３図（３）＋（Ｂ）
（３の表示となる合成画像信号を合成画像信号出
力端 迂子１６を通して出力する。そしてこれらの信
号は、別途処理された同期信号に応じて画面が横長の（
例えば３：５）の表示装置上に表示される。On the other hand, the received and video-demodulated composite image signal consisting of the additional image signal and the basic image signal is input to the image signal input terminal 11 of FIG. a) (Basic image signal signal shown in bl, (
C) fd1 The signal is frequency-separated into additional image signals shown as Ye, Ce, etc., and the former is supplied to the basic image signal reproducing section 13 and the latter to the additional image signal reproducing section 14. The basic image signal reproducing unit 13 converts the basic image signal into FIGS.
) are separated from the luminance signal and color signal and supplied to the display image signal synthesis section 15 as three primary color signals (or color difference signals) of red, blue and green. The additional image signal reproducing unit 14 compresses the additional luminance signal Ye shown in FIG.
Hz - 4MHz) I, reproduce the luminance signal component of the original additional image signal at <4H as described above, and reproduce the luminance signal component of the additional color signal Ce separated from the basic image signal as shown in FIG. The additional image signal shown in (B) is converted into three primary color signals (or color difference signals) of red, blue, and green, and is supplied to the display image signal synthesis section 15. The display image signal synthesis section 15 synthesizes the output from the basic image signal reproduction section 13 and the output from the additional image signal reproduction section 14 (for example, in the form of three primary color signals of y, red, blue, and green), and Figure 3 (3) + (B)
(The composite image signal that will be displayed in 3 is output through the composite image signal output terminal 16.Then, these signals are output in accordance with the synchronization signal that is processed separately.)
For example, it is displayed on a 3:5) display device.
発明の効果
以上述べてきたように、本発明によれば、映画や臨場感
のある番組を送出・サービスする場合、例えば画面縦横
比３：５の画像がそのまま再生されるため、臨場感なら
びに作者の意図が十分に伝達することができ、また、現
行テレビ受信機で受信した場合も殆んど妨害を与えず両
立性があり、工業的にきわめて有効である。Effects of the Invention As described above, according to the present invention, when transmitting or servicing a movie or a program with a sense of realism, for example, an image with a screen aspect ratio of 3:5 is played back as is, which improves the sense of realism and the author. It is possible to sufficiently convey the intention of the user, and it is compatible with almost no interference when received by current television receivers, making it extremely effective industrially.
第１図は本発明の一実施例によるテレビジョン′１〕
ある。
２．１２・・・・・・画像信号分離部、３・・・・・・
基本画像信−処理部、４・・・追加画像信号処理部、５
・・・・・・画像；号合成部、１３・・・・・・基本画
像信号再生部、１４・・・・・・１加画像信号再生部、
１５・・・・・・表示画像信号再生部。
代理人の氏名 弁理士 中尾敏男 はか１名第１図
第２図FIG. 1 shows a television '1' according to an embodiment of the present invention. 2.12... Image signal separation unit, 3...
Basic image signal processing unit, 4...Additional image signal processing unit, 5
. . . Image signal synthesis section, 13 . . . Basic image signal reproduction section, 14 . . . 1 additional image signal reproduction section,
15...Display image signal reproducing section. Name of agent: Patent attorney Toshio Nakao (1 person) Figure 1 Figure 2
Claims (3)
間に、第２のテレビジョン信号の周波数スペクトルを多
重することにより、現行テレビジョン方式より横長の画
面縦横比を有することを特徴とするテレビジョン信号の
形成方法。(1) A television characterized by having a screen aspect ratio that is longer than the current television system by multiplexing the frequency spectrum of a second television signal into the gap between the frequency spectra of the first television signal. How the signal is formed.
クトルを有する特許請求の範囲第（１）項記載のテレビ
ジョン信号の形成方法。(2) The method of forming a television signal according to claim (1), wherein the second television signal has an expanded frequency spectrum.
部を、前記第１のテレビジョン信号の色信号の帯域内に
第１のテレビジョン信号の色信号と輝度信号に対し周波
数オフセットの関係で多重する特許請求の範囲第（１）
項記載のテレビジョン信号の形成方法。(3) A part of the frequency spectrum of the second television signal is set within the band of the chrominance signal of the first television signal in a frequency offset relationship with respect to the chrominance signal and the luminance signal of the first television signal. Multiple claims No. (1)
Method for forming a television signal as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60217007A JPS6276985A (en) | 1985-09-30 | 1985-09-30 | Formation of television signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60217007A JPS6276985A (en) | 1985-09-30 | 1985-09-30 | Formation of television signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6276985A true JPS6276985A (en) | 1987-04-09 |
Family
ID=16697359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60217007A Pending JPS6276985A (en) | 1985-09-30 | 1985-09-30 | Formation of television signal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6276985A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01501832A (en) * | 1987-07-27 | 1989-06-22 | ゼネラル エレクトリツク カンパニイ | Television type video signal encoding device and video signal processing device |
| JPH01501912A (en) * | 1987-07-27 | 1989-06-29 | ゼネラル エレクトリツク カンパニイ | Encoding and receiving systems for television-type signals representing widescreen images |
| US4884127A (en) * | 1987-09-14 | 1989-11-28 | General Electric Company | Apparatus for pre-conditioning auxiliary television signal information |
| JPH02500239A (en) * | 1987-07-27 | 1990-01-25 | ゼネラル エレクトリツク カンパニイ | Compatible widescreen television system |
| US4944032A (en) * | 1986-07-14 | 1990-07-24 | Matsushita Electric Industrial Co., Ltd. | Multiplex signal processing apparatus |
-
1985
- 1985-09-30 JP JP60217007A patent/JPS6276985A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4944032A (en) * | 1986-07-14 | 1990-07-24 | Matsushita Electric Industrial Co., Ltd. | Multiplex signal processing apparatus |
| JPH01501832A (en) * | 1987-07-27 | 1989-06-22 | ゼネラル エレクトリツク カンパニイ | Television type video signal encoding device and video signal processing device |
| JPH01501912A (en) * | 1987-07-27 | 1989-06-29 | ゼネラル エレクトリツク カンパニイ | Encoding and receiving systems for television-type signals representing widescreen images |
| JPH02500239A (en) * | 1987-07-27 | 1990-01-25 | ゼネラル エレクトリツク カンパニイ | Compatible widescreen television system |
| JPH0439274B2 (en) * | 1987-07-27 | 1992-06-29 | ||
| JPH0439275B2 (en) * | 1987-07-27 | 1992-06-29 | ||
| JPH0439273B2 (en) * | 1987-07-27 | 1992-06-29 | ||
| US4884127A (en) * | 1987-09-14 | 1989-11-28 | General Electric Company | Apparatus for pre-conditioning auxiliary television signal information |
| US4926244A (en) * | 1987-09-14 | 1990-05-15 | General Electric Company | Extended definition widescreen television signal processing system with alternate subcarrier |
| US5025309A (en) * | 1987-09-14 | 1991-06-18 | Rca Licensing Corporation | Extended definition widescreen television signal processing system |
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