JPH02184187A - Moving resolution improvement transmission system utilizing additional channel - Google Patents
Moving resolution improvement transmission system utilizing additional channelInfo
- Publication number
- JPH02184187A JPH02184187A JP1002839A JP283989A JPH02184187A JP H02184187 A JPH02184187 A JP H02184187A JP 1002839 A JP1002839 A JP 1002839A JP 283989 A JP283989 A JP 283989A JP H02184187 A JPH02184187 A JP H02184187A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- band
- additional channel
- transmission system
- transmission
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はＡＤ （八ｄｖａｎｃｅｄ Ｄｅｆｉｎｉｔｉ
ｏｎ） Ｔνの伝送方式に係り、特にＮＴＳＣ伝送方式
と両立性を有するハイビジョンの帯域圧縮伝送方式に関
するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention
on) Tν transmission system, and particularly relates to a high-definition band compression transmission system that is compatible with the NTSC transmission system.
（発明の概要）
この発明は、ハイビジョン信号を現行テレビジ四ン信号
例えばＮＴＳＣ信号と両立性を持たせるだめの帯域圧縮
伝送に関するもので、圧縮され削除されたハイビジョン
信号の動解像度の高域成分を、ＮＴＳＣ伝送方式に等し
い伝送帯域を有する主チャンネル以外の副チャンネルを
使用して伝送することにより、ハイビジョンのより高精
細な映像を再生せんとするものである。(Summary of the Invention) The present invention relates to band compression transmission for making high-definition signals compatible with current television signals, such as NTSC signals, and includes high-frequency components of the dynamic resolution of compressed and deleted high-definition signals. , by transmitting using a sub-channel other than the main channel that has a transmission band equal to that of the NTSC transmission system, it is intended to reproduce higher-definition high-definition video.
（従来の技術）
ハイビジョン信号と現行テレビジョン信号例えばＮＴＳ
Ｃ信号と両立性を持たせるためのハイビジョン帯域圧縮
伝送において、ハイビジョン信号の静止画輝度信号の高
精細度情報をＮＴＳＣ伝送方式と同じ伝送帯域を有する
主チャンネルに多重する技術は、本願人になる特願昭６
３−１７３４６号「帯域圧縮伝送方式」明細書に記載さ
れているが、この伝送方式により削除される輝度信号の
動解像度高域情報を前記主チヤンネル以外の付加チャン
ネルを使用して別途伝送する方式は見当らない。(Prior art) High-definition signals and current television signals such as NTS
In high-definition band compressed transmission to ensure compatibility with C signals, the applicant has developed a technology for multiplexing high-definition information of the still image brightness signal of the high-definition signal onto a main channel having the same transmission band as the NTSC transmission system. Special request 1976
No. 3-17346 "Bandwidth Compression Transmission System" Specification describes a method in which the dynamic resolution high-frequency information of the luminance signal deleted by this transmission method is separately transmitted using an additional channel other than the main channel. I can't find it.
（発明が解決しようとする課題）
現行方式と両立性を持たせたハイビジョン信号の再生画
質を改善するため、主チャンネルに輝度信号の高精細度
情報を多重する前記特願昭６３１７３４６号明細書記載
の伝送方式では、輝度信号の動画の情報を受信側で静止
画情報と分離できないため、静止画についてのみしか高
精細度情報が伝送できなかった。(Problem to be Solved by the Invention) In order to improve the playback quality of high-definition signals that is compatible with the current system, the above-mentioned Japanese Patent Application No. 6317346 multiplexes high-definition information of a luminance signal on the main channel. With this transmission method, the moving image information of the luminance signal cannot be separated from the still image information on the receiving side, so high-definition information could only be transmitted for still images.
そこで本発明の目的は上述の課題を解決し、現行テレビ
ジョン伝送方式と両立性のあるハイビジョン伝送方式で
、より高精細な映像の再生できるハイビジョン信号伝送
方式を提供せんとするものである。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a high-definition signal transmission system that is compatible with the current television transmission system and can reproduce higher-definition video.
（課題を解決するための手段）
この目的を達成するため本発明付加チャンネルを利用し
た動解像度改善伝送方式は、特定のテレビジョン伝送方
式で伝送される画像情報よりも多くの画像情報を有する
高品位テレビジョン情報を、前記特定のテレビジョン伝
送方式に等しい伝送帯域を有する生チャンネルと付加チ
ャンネルとを使用して帯域圧縮伝送するにあたり、前記
付加チャンネルで動き情報の高域成分を伝送することを
特徴とするものである。(Means for Solving the Problem) In order to achieve this objective, the dynamic resolution improving transmission system using the additional channel of the present invention provides a high resolution transmission system that has more image information than that transmitted by a specific television transmission system. When transmitting high-quality television information using a raw channel and an additional channel having a transmission band equal to that of the specific television transmission method, the additional channel transmits high-frequency components of motion information. This is a characteristic feature.
（作 用）
かくして従来伝送し得なかったハイビジョン輝度信号の
動き情報高域成分も同時に伝送再生できるので、従来よ
りもより高精細なハイビジ田ン映像を再生することがで
きる。(Function) In this way, the high-frequency motion information component of the high-definition luminance signal, which could not be transmitted in the past, can be transmitted and reproduced at the same time, so it is possible to reproduce high-definition high-definition images than in the past.
（実施例）
以下添付図面を参照し実施例により本発明の詳細な説明
する。(Examples) The present invention will be described in detail below by way of examples with reference to the accompanying drawings.
第１図、第２図は本発明実施例のエンコーダ側、テコー
ダ側それぞれの構成ブロック線図を示す。FIGS. 1 and 2 show block diagrams of the encoder side and the decoder side, respectively, of an embodiment of the present invention.
これらの図ではハイビジョンの輝度信号Ｙの処理方法が
中心に記載されている。In these figures, the processing method for the high-definition luminance signal Y is mainly described.
まず送信側エンコーダでは第１図に示すごとく、入力さ
れたハイビジョンの輝度Ｙ信号は、２つのＬＰＦｉ （
低域通過フィルタ、Ｏ〜４ Ｍｌｌｚ） １、ＬＰＰ（
０〜６ Ｍｌｌｚ） ３と２つの減算器２，４を介して
３つの周波数成分０〜４ＭＨｚ帯、４〜６ＭＨｚ帯、６
〜８ＭＨｚ帯に分離される。けだし入力Ｙ信号のベース
バンドはＯ〜８ＭＨ＋であるとしている。主チャンネル
では乗算器５と６によりそれぞれ、Ｙ信号の４〜６ Ｍ
Ｈｚの成分、６〜８ＭＨｚの成分が変調を受け、加算器
７、レベル圧縮器８を介して得られた変調信号は、別途
検出される動き信号の太きさｋに応じて乗算器９で１−
ｋが乗ぜられ、その出力が加算器ＩＯによりＹ信号の低
域成分Ｏ〜４ＭＢＫに加算される。さらに加算器１１で
Ｉ、 Ｑ信号が変調多重される。なお、動き信号ｋ （
Ｏａｋ＜ｌ）は、あるフィールドの映像信号と、その１
フイールド前の映像信号との差分の大きさによって定ま
る量であり、完全静止で０、完全動で１となるものであ
る。ここで■信号はＯ〜１ 、５ＭＨｚ成分が（３，５
８ＭＨｚ＋ｚ／２） ＊送波で残留側波帯変調さｈ、Ｑ
信号は０〜０．５ Ｍｌｌｚ成分が３．５８ ＭＨｚ
＠送波で変調され、４〜８ ＭＨ２のＹ信号は前記特願
昭６３１７３４６号明細書記載のごとく、低域成分の２
〜４ＭＨｚ帯に搬送色信号とともに標本化折り返し多重
されるものとする。また３ ＭＨｚ帯域の付加チャンネ
ルではＹ信号の４〜６ ＭＨｚ成分のみを抽出し、搬送
波３ ＭＨｚのｆｊ、４１２で変調し出力されている。First, in the transmitting encoder, as shown in Figure 1, the input high-definition luminance Y signal is divided into two LPFi (
Low-pass filter, O~4 Mllz) 1, LPP (
0 to 6 Mllz) 3 and two subtractors 2 and 4 to three frequency components 0 to 4 MHz band, 4 to 6 MHz band, 6
It is separated into ~8MHz band. The baseband of the output Y signal is assumed to be 0 to 8MH+. In the main channel, multipliers 5 and 6 multiply 4 to 6 M of the Y signal, respectively.
The Hz component and the 6 to 8 MHz component are modulated, and the modulated signal obtained via the adder 7 and the level compressor 8 is processed by the multiplier 9 according to the width k of the motion signal that is detected separately. 1-
k is multiplied, and the output thereof is added to the low-frequency component O to 4MBK of the Y signal by an adder IO. Further, an adder 11 modulates and multiplexes the I and Q signals. Note that the motion signal k (
Oak<l) is the video signal of a certain field and its 1
This amount is determined by the magnitude of the difference from the video signal before the field, and is 0 when the field is completely still and 1 when it is completely moving. Here, the ■signal is O~1, and the 5MHz component is (3,5
8MHz+z/2) *Residual sideband modulation h, Q during transmission
The signal is 0 to 0.5 Mllz component is 3.58 MHz
@The Y signal of 4 to 8 MH2 is modulated by the transmission wave, and as described in the specification of the above-mentioned Japanese Patent Application No. 1983, 2
It is assumed that the signal is sampled and multiplexed together with the carrier color signal in the ~4 MHz band. Further, in the additional channel of the 3 MHz band, only the 4 to 6 MHz components of the Y signal are extracted, modulated with a carrier wave fj of 3 MHz, 412, and output.
次に受信側デコーダでは第２図に示すごとく、主チヤン
ネル受信信号からはＮＴＳＣデコーダ１３を介して静止
画部分のＹ信号（Ｙ、） 、動画部分のＹ信号（ｙ 、
４）を再生しており、ここで信号Ｙ。Next, in the receiving side decoder, as shown in FIG.
4) is being played, and here the signal Y.
はＯ〜８ Ｍｌｌｚの帯域杏有し、信号Ｙ９はＯ〜４
Ｍｌｌｚの帯域を有する。また付加チャンネル信号から
は、乗算器１４ （Ｘ ｆ ３Ｍ） 、ＢＰＦ（帯域通
過フィルタ、４〜６ＭＨｚＨ５を介してＹ信号の動き画
像の４〜６ ＭＨｚ成分が再生され、信号Ｙ、にこれが
加算器１６で加算される。さらに信号Ｙ、と加算された
信号Ｙ。has a band of O~8 Mllz, and signal Y9 has a band of O~4
It has a band of Mllz. Further, from the additional channel signal, the 4 to 6 MHz component of the motion image of the Y signal is reproduced via a multiplier 14 (X f 3M) and a BPF (band pass filter, 4 to 6 MHz H5), and this is added to the signal Y by an adder. 16. Furthermore, the signal Y and the added signal Y.
は別途検出される動き信号の大きさに応じて乗算器１７
．１８でそれぞれに、１−ｋが乗ぜられ加算器１９でこ
れら結果の信号が加算されて終局のＹ信号となる。この
終局のＹ信号には動画の高精細度成分（４〜６ ＭＨｚ
）が含まれることになる。is a multiplier 17 according to the magnitude of the motion signal detected separately.
．． At step 18, each signal is multiplied by 1-k, and at adder 19, the resulting signals are added to form the final Y signal. This final Y signal contains the high-definition component of the video (4 to 6 MHz
) will be included.
また、第１図、第２図からも明らかなように、付加チャ
ンネルを使用しない場合には、動解像度高域成分が得ら
れないだけでＮＴＳＣ信号との両立性は保持される。Furthermore, as is clear from FIGS. 1 and 2, when the additional channel is not used, compatibility with the NTSC signal is maintained even though the dynamic resolution high frequency component is not obtained.
以上述べてきた実施例では、特定のテレビジョン伝送方
式がＮＴＳＣ伝送方式であり、付加チャンネルで伝送さ
れる信号がハイビジョン輝度信号の動画情報の４〜６
ＭＨｚの成分であり、ハイビジョン輝度信号の静止画情
報の４〜８ ＭＨｚがその低域成分の２〜４Ｈｚ帯に標
本化折り返し多重される例について説明してきたが、本
発明はこれに限定されるものではなく、本発明特許請求
の範囲に請求したはんちゅうにおいて変形、修正が可能
なものであるとする。In the embodiments described above, the specific television transmission method is the NTSC transmission method, and the signal transmitted on the additional channel is a high-definition brightness signal of video information 4 to 6.
Although an example has been described in which 4 to 8 MHz of still image information of a high-definition luminance signal is sampled and multiplexed to the low frequency component of the 2 to 4 Hz band, the present invention is limited to this. However, it is assumed that modifications and modifications can be made to the stamps claimed in the claims of the present invention.
（発明の効果）
この種従来の現行方式と両立性を有するハイビジョン伝
送方式では、静止画の解像度はハイビジョン受像機で十
分再生できたが、動画の解像度の再生は不十分であった
。本発明では付加チャンネルにより動画の高域情報も伝
送可となり、再生ハイビジボンの画質を向上させること
ができる。(Effects of the Invention) In this type of high-definition transmission system that is compatible with conventional conventional systems, high-definition receivers can sufficiently reproduce still images in resolution, but reproduction in moving image resolution is insufficient. In the present invention, high-frequency information of moving images can also be transmitted through the additional channel, and the image quality of reproduced high-visibbon can be improved.
第１図、第２図は本発明実施例のエンコーダ側、デコー
ダ側それぞれの構成ブロック線図を示す。
１ ＝ＬＰＰ （０〜４ ＭＨｚ） ２．４＝＝Ｎ
算器３ ・・・ＬＰＦ （０〜６ Ｍｌｌｚ）５・・・
乗算器（Ｘ７．７１ＭＨｚ） ６＝乗算器（Ｘ ３．
８６ＭＩＩｚ）７、１０．１１．１６．１９・・・加算
器８・・・レベル圧縮器
１２、１４・・・乗算器（Ｘ３ＭＨｚ）１３・・・ＮＴ
ＳＣデコーダ １５・・・ＢＰＦ （４〜６ ＭＨ
ｚ）１７・・・乗算器（×ｋ）FIGS. 1 and 2 are block diagrams showing the configurations of the encoder side and the decoder side, respectively, according to an embodiment of the present invention. 1=LPP (0~4MHz) 2.4==N
Calculator 3...LPF (0~6 Mllz)5...
Multiplier (X7.71MHz) 6 = Multiplier (X 3.
86MIIz) 7, 10.11.16.19... Adder 8... Level compressor 12, 14... Multiplier (X3MHz) 13... NT
SC decoder 15...BPF (4~6MH
z) 17... Multiplier (×k)
Claims (1)
よりも多くの画像情報を有する高品位テレビジョン情報
を、前記特定のテレビジョン伝送方式に等しい伝送帯域
を有する主チャンネルと付加チャンネルとを使用して帯
域圧縮伝送するにあたり、前記付加チャンネルで動き情
報の高域成分を伝送することを特徴とする付加チャンネ
ルを利用した動解像度改善伝送方式。 ２、請求項１記載の伝送方式において、前記特定のテレ
ビジョン伝送方式がＮＴＳＣ伝送方式であることを特徴
とする付加チャンネルを利用した動解像度改善伝送方式
。 ３、請求項１または２記載の伝送方式において、前記動
き情報の高域成分が輝度信号のほぼ４ＭＨｚから６ＭＨ
ｚの範囲であることを特徴とする付加チャンネルを利用
した動解像度改善伝送方式。 ４、請求項１から３いずれかに記載の伝送方式において
、前記帯域圧縮が高品位テレビジョン信号の静止画輝度
信号における広帯域信号をＮＴＳＣ伝送方式の輝度信号
伝送帯域まで圧縮するものであることを特徴とする付加
チャンネルを利用した動解像度改善伝送方式。[Claims] 1. High-definition television information having more image information than that transmitted by a specific television transmission method is transmitted through a main channel having a transmission band equal to that of the specific television transmission method. 1. A transmission method for improving dynamic resolution using an additional channel, characterized in that when performing band compression transmission using an additional channel and an additional channel, a high-frequency component of motion information is transmitted using the additional channel. 2. The transmission system according to claim 1, wherein the specific television transmission system is an NTSC transmission system. 3. The transmission method according to claim 1 or 2, wherein the high frequency component of the motion information is approximately 4 MHz to 6 MHz of the luminance signal.
A transmission method for improving dynamic resolution using an additional channel characterized by a range of z. 4. In the transmission system according to any one of claims 1 to 3, the band compression compresses a wideband signal in a still image luminance signal of a high-definition television signal to a luminance signal transmission band of an NTSC transmission system. A transmission method with improved dynamic resolution that uses additional channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1002839A JPH02184187A (en) | 1989-01-11 | 1989-01-11 | Moving resolution improvement transmission system utilizing additional channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1002839A JPH02184187A (en) | 1989-01-11 | 1989-01-11 | Moving resolution improvement transmission system utilizing additional channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02184187A true JPH02184187A (en) | 1990-07-18 |
Family
ID=11540580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1002839A Pending JPH02184187A (en) | 1989-01-11 | 1989-01-11 | Moving resolution improvement transmission system utilizing additional channel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02184187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100448454B1 (en) * | 1997-04-11 | 2004-12-04 | 엘지전자 주식회사 | Device and a method for selecting and recording a high-quality luminance signal, particularly for remarkably improving frequency and resolution features when reproducing video signals while being compatible with existing systems |
-
1989
- 1989-01-11 JP JP1002839A patent/JPH02184187A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100448454B1 (en) * | 1997-04-11 | 2004-12-04 | 엘지전자 주식회사 | Device and a method for selecting and recording a high-quality luminance signal, particularly for remarkably improving frequency and resolution features when reproducing video signals while being compatible with existing systems |
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