JPH06350968A - Optical disk recording and reproducing device and optical disk - Google Patents
Optical disk recording and reproducing device and optical diskInfo
- Publication number
- JPH06350968A JPH06350968A JP5133138A JP13313893A JPH06350968A JP H06350968 A JPH06350968 A JP H06350968A JP 5133138 A JP5133138 A JP 5133138A JP 13313893 A JP13313893 A JP 13313893A JP H06350968 A JPH06350968 A JP H06350968A
- Authority
- JP
- Japan
- Prior art keywords
- television signal
- optical disk
- recording
- data
- reproducing
- 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
Landscapes
- Television Signal Processing For Recording (AREA)
- Color Television Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高精細度テレビジョン
信号を高能率符号化及び、復号化して記録再生する光デ
ィスク記録再生装置及び光ディスクに関し、特に高精細
度テレビジョン信号だけでなく、標準テレビジョン信号
も再生可能な光ディスク記録再生装置及び光ディスクに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc recording / reproducing apparatus and an optical disc for recording and reproducing a high definition television signal by highly efficient encoding and decoding, and particularly to a standard as well as a high definition television signal. The present invention relates to an optical disk recording / reproducing device and an optical disk that can also reproduce a television signal.
【０００２】[0002]
【従来の技術】図６に示すようなディジタル画像信号を
高能率符号化して光ディスクに記録し、記録された符号
化データを再生ヘッドで読み出し、復号化する光ディス
ク記録再生装置が提案されている。図６において、１０
０は画像信号の入力端子、１０２は光ディスク１０３に
記録するための画像信号を高能率符号化するための符号
化器、１０４は光ディスク１０３に記録された符号化デ
ータを再生ヘッド（図示せず）で読み出し、復号化する
復号化器、１０６は出力端子である。2. Description of the Related Art An optical disc recording / reproducing apparatus has been proposed in which a digital image signal as shown in FIG. 6 is highly efficiently encoded and recorded on an optical disc, and the recorded encoded data is read by a reproducing head and decoded. In FIG. 6, 10
0 is an input terminal of the image signal, 102 is an encoder for highly efficient encoding of the image signal to be recorded on the optical disc 103, and 104 is a reproducing head (not shown) for the encoded data recorded on the optical disc 103. The decoder 106 reads out and decodes at 106, and 106 is an output terminal.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記の
ような構成では、高精細度テレビジョン信号を符号化し
て光ディスクに記録した場合、再生側では復号化された
高精細度テレビジョン信号が得られるだけである。更に
高精細度テレビジョン信号と標準テレビジョン信号とで
それぞれ別の回路が必要になるという欠点を有してい
る。However, in the above configuration, when the high definition television signal is encoded and recorded on the optical disc, the decoded high definition television signal is obtained on the reproducing side. Only. Further, it has a drawback that separate circuits are required for high definition television signals and standard television signals.
【０００４】本発明はかかる点に鑑み、高精細度テレビ
ジョン信号を高能率符号化して光ディスクに記録した場
合に、再生側において復号化された高精細度テレビジョ
ン信号だけでなく、標準テレビジョン信号も得られ、か
つ高精細度テレビジョン信号の符号化復号化に対して標
準テレビジョン信号の符号化復号化回路を用いることが
可能な光ディスク記録再生装置及び光ディスクを提供す
ることを目的とする。In view of the above, the present invention is not limited to the high-definition television signal decoded on the reproducing side when the high-definition television signal is highly efficiently encoded and recorded on the optical disc, but also a standard television. An object is to provide an optical disc recording / reproducing apparatus and an optical disc which can obtain a signal and can use a standard television signal encoding / decoding circuit for encoding / decoding a high definition television signal. .
【０００５】[0005]
【課題を解決するための手段】本発明は、高精細度テレ
ビジョン信号の１フレーム期間の画像データを２つのデ
ータ群に分割する分割手段と、分割された各データ群を
標準テレビジョン信号の１フレーム相当の画像データと
して高能率符号化して光ディスクに記録する符号化手段
と、高能率符号化したデータを記録した光ディスクから
２つに分割された符号化データ群の片方を復号化するこ
とによって標準テレビジョン信号を、両方を復号化する
ことによって高精細度テレビジョン信号を再生する復号
化手段を備えた構成である。According to the present invention, a dividing means for dividing image data of one frame period of a high definition television signal into two data groups, and each divided data group of a standard television signal. By encoding means for high-efficiency-encoding image data corresponding to one frame and recording it on the optical disc, and by decoding one of the encoded data groups divided into two from the optical disc on which the high-efficiency encoded data is recorded. This is a configuration including decoding means for reproducing a high definition television signal by decoding both standard television signals.
【０００６】[0006]
【作用】本発明は、高精細度テレビジョン信号を高能率
符号化して光ディスクに記録する際に、再生側において
高精細度テレビジョン信号だけでなく、標準テレビジョ
ン信号も再生することができ、更に高精細度テレビジョ
ン信号の符号化復号化に対して標準テレビジョン信号の
符号化復号化回路を用いることができる。According to the present invention, when a high-definition television signal is highly efficiently encoded and recorded on an optical disc, not only the high-definition television signal but also a standard television signal can be reproduced on the reproducing side. Furthermore, standard television signal encoding / decoding circuits can be used for encoding / decoding high definition television signals.
【０００７】[0007]
【実施例】以下、本発明の一実施例について、図面を参
照しながら説明する。図１は本実施例の光ディスク記録
再生装置のブロック図である。図１の（ａ）は記録側の
構成を示しており、（ｂ）（ｃ）は再生側の構成を示し
ている。（ｂ）は高精細度テレビジョン信号を再生する
場合の構成であり、（ｃ）は標準テレビジョン信号とし
て再生する場合の構成である。本実施例では、高精細度
テレビジョン信号の１フレーム期間のディジタル画像デ
ータの分割単位をフィールド単位として説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an optical disk recording / reproducing apparatus of this embodiment. 1A shows the structure on the recording side, and FIGS. 1B and 1C show the structure on the reproducing side. (B) is a configuration for reproducing a high definition television signal, and (c) is a configuration for reproducing as a standard television signal. In this embodiment, the unit of division of digital image data in one frame period of a high definition television signal will be described as a field unit.
【０００８】図１において、１０は高精細度テレビジョ
ン信号の入力端子、１１は１フレーム期間のディジタル
画像データをそれぞれ奇数番目のラインで構成される奇
数フィールドと偶数番目のラインで構成される偶数フィ
ールドのデータ群に２分割するフィールド分割回路であ
り、例えばフィールドメモリーとセレクターを用いて構
成されている。１２、１３は符号化器、１４は光ディス
ク、１５、１６は復号化器である。１７は各フィールド
毎の復号化データを高精細度テレビジョン信号の１フレ
ーム期間の復号化データに時間的に並び変えるフレーム
合成回路であり、例えばフィールドメモリーとセレクタ
ーを用いて構成されている。１８は再生された高精細度
テレビジョン信号を出力するための出力端子、１９は再
生された標準テレビジョン信号を出力するための出力端
子である。In FIG. 1, reference numeral 10 is an input terminal for a high definition television signal, and 11 is an even field composed of an odd field and an even line of digital image data of one frame period. This is a field division circuit that divides the data into two groups of field data, and is composed of, for example, a field memory and a selector. Reference numerals 12 and 13 are encoders, 14 is an optical disk, and 15 and 16 are decoders. Reference numeral 17 denotes a frame synthesizing circuit which rearranges the decoded data of each field into the decoded data of one frame period of the high definition television signal in time, and is composed of, for example, a field memory and a selector. 18 is an output terminal for outputting a reproduced high-definition television signal, and 19 is an output terminal for outputting a reproduced standard television signal.
【０００９】図１に従って詳しく説明する。まず入力端
子１０に１フレーム期間の高精細度テレビジョン信号
が、例えば、９６０×９６０画素となるようにサンプリ
ングされ、量子化されて、入力される。この入力された
画像データはフィールド分割回路１１においてそれぞれ
奇数番目のラインで構成される奇数フィールドの画像デ
ータｏと偶数番目のラインで構成される偶数フィールド
の画像データｅに分割されてそれぞれ符号化器１２、１
３に出力される。符号化器１２、１３は、それぞれ水平
方向に９６０画素、垂直方向に４８０画素で構成される
画像データを、標準テレビジョン信号の１フレーム相当
の画像データとして高能率符号化し、それぞれ符号化デ
ータｏ'、ｅ'を出力する。符号化データｏ'，ｅ'はそれ
ぞれ光ディスク１４の表面及び、裏面に記録ヘッド（図
示せず）で記録される。以上が記録側の動作である。A detailed description will be given with reference to FIG. First, a high-definition television signal for one frame period is sampled into, for example, 960 × 960 pixels, quantized, and input to the input terminal 10. The input image data is divided in the field division circuit 11 into image data o of an odd field composed of odd-numbered lines and image data e of an even field composed of even-numbered lines, respectively, and each is encoded. 12, 1
3 is output. The encoders 12 and 13 perform high-efficiency encoding of image data composed of 960 pixels in the horizontal direction and 480 pixels in the vertical direction as image data corresponding to one frame of a standard television signal, and coded data o respectively. Outputs " , e " . Coded data o ', e' surface and each optical disk 14 is recorded by the recording head (not shown) on the back. The above is the operation on the recording side.
【００１０】再生側においては、高精細度テレビジョン
信号を再生する場合には図１（ｂ）に示すような構成
で、２つの再生ヘッド（図示せず）を用いて光ディスク
１４の表面から符号化データｏ'が、裏面から符号化デ
ータｅ'が読み出され、それぞれ復号化器１５、１６に
入力される。復号化器１５、１６はそれぞれ復号化デー
タｏ''及び、ｅ''をフレーム合成回路１７に出力する。
フレーム合成回路１７は、奇数フィールドの復号化デー
タｏ''と偶数フィールドの復号化データｅ''を時間的に
並び変えて高精細度テレビジョン信号の１フレーム期間
の画像データを出力端子１８に出力する。On the reproducing side, when reproducing a high-definition television signal, the structure shown in FIG. 1 (b) is used, and two reproducing heads (not shown) are used to code from the surface of the optical disk 14. data o 'is, coded data e from the back' are then input to each decoder 15, 16. The decoders 15 and 16 output the decoded data o ″ and e ″ to the frame synthesizing circuit 17, respectively.
The frame synthesizing circuit 17 temporally rearranges the decoded data o ″ of the odd field and the decoded data e ″ of the even field to output the image data of one frame period of the high definition television signal to the output terminal 18. Output.
【００１１】標準テレビジョン信号を再生する場合に
は、図１（ｃ）に示すような構成で、１つの再生ヘッド
を用いて光ディスク１４の表面あるいは、裏面のどちら
か片方の面から復号化データｏ''あるいは、ｅ''が読み
出され、復号化器１５に入力される。復号化器１５は、
標準テレビジョン信号の１フレーム期間に復号化データ
ｏ''あるいは、ｅ''を出力端子１９に出力する。When reproducing a standard television signal, the structure shown in FIG. 1C is used, and the decoded data is read from either one of the front surface and the back surface of the optical disk 14 by using one reproducing head. o ″ or e ″ is read out and input to the decoder 15. The decoder 15
The decoded data o ″ or e ″ is output to the output terminal 19 during one frame period of the standard television signal.
【００１２】更に、高精細度テレビジョン信号の各フィ
ールド毎に高能率符号化された符号化データが可変長で
あれば、それぞれのフィールド毎のデータ量が異なる可
能性が生じ、光ディスクのそれぞれの領域に記録される
物理的な長さが異なってしまう欠点が生じる。この時に
は、例えば高精細度テレビジョン信号の１フレーム期間
ｔｆといった所定期間の間に発生する奇数フィールドの
符号化データ量と偶数フィールドの符号化データ量を比
較し、少ない方のフィールドの符号化データには、図５
に示すようにそのデータ量の差分だけ疑似データ（斜線
を施した部分）を付加して、多い方のフィールドの符号
化データ量と同じにそろえて光ディスクに記録する。Further, if the coded data which is highly efficient coded for each field of the high definition television signal has a variable length, there is a possibility that the data amount for each field may be different, and each field of the optical disc. There is a drawback that the physical length recorded in the area is different. At this time, the coded data amount of the odd field and the coded data amount of the even field generated during a predetermined period such as one frame period tf of the high definition television signal are compared, and the coded data of the smaller field is compared. In Figure 5
As shown in (4), pseudo data (hatched portion) is added by the difference of the data amount, and the data is recorded on the optical disc in the same amount as the encoded data amount of the larger field.
【００１３】以上説明したように本実施例では、高精細
度テレビジョン信号の１フレーム期間の画像データをフ
ィールド毎に２分割し、各フィールド毎の画像データを
標準テレビジョン信号の１フレーム相当の画像データと
して高能率符号化して光ディスクに記録し、再生側では
片方のフィールドの符号化データを復号化することによ
って標準テレビジョン信号を、両方のフィールドの符号
化データを復号化することによって高精細度テレビジョ
ン信号を再生する。As described above, in this embodiment, the image data of one frame period of the high definition television signal is divided into two for each field, and the image data of each field corresponds to one frame of the standard television signal. High-efficiency encoding as image data is recorded on an optical disc, and the reproducing side decodes the encoded data of one field to obtain a standard television signal, and the encoded data of both fields to obtain a high definition image. Play the television signal once.
【００１４】また、高精細度テレビジョン信号の符号化
復号化に対しては、標準テレビジョン信号の符号化復号
化回路を２つ用いることで実現できることになる。Further, the coding / decoding of the high definition television signal can be realized by using two coding / decoding circuits of the standard television signal.
【００１５】なお、本実施例では、１フレーム期間の高
精細度テレビジョン信号をフィールド毎に２分割した後
に、各フィールド毎に高能率符号化された符号化データ
をそれぞれ２チャンネルで光ディスクの表面及び、裏面
に記録する場合を例にとって説明したが、分割単位は任
意に設定でき、例えばサブサンプリングによって分割し
てもよい。また、光ディスク上の各分割単位毎の符号化
データの記録領域は、色々と考えられ、図２〜図４にそ
の例を示す。In this embodiment, the high-definition television signal for one frame period is divided into two for each field, and the high-efficiency coded data for each field is divided into two channels and the surface of the optical disk is divided into two channels. Also, the case of recording on the back side has been described as an example, but the division unit can be set arbitrarily and may be divided by subsampling, for example. Further, various recording areas of encoded data for each division unit on the optical disc can be considered, and examples thereof are shown in FIGS. 2 to 4.
【００１６】図２は、並行する２本のスパイラルトラッ
クに奇数フィールドの符号化データｏ'（実線トラッ
ク）、偶数フィールドの符号化データｅ'（破線トラッ
ク）を記録する例を示している。FIG. 2 shows an example in which the coded data o ' (solid line track) of the odd field and the coded data e ' (broken line track) of the even field are recorded on two parallel spiral tracks.
【００１７】図３は、光ディスクを所定半径の円を境界
として２分割し、その内周部分に偶数フィールドの符号
化データｅ'を記録し、外周部分に奇数フィールドの符
号化データｏ'を記録する例を示している。[0017] Figure 3, the optical disc is divided into two circles of a predetermined radius as a boundary, 'to record the odd field of the coded data o the outer periphery' even field coded data e to the inner peripheral portion thereof recorded An example is shown.
【００１８】図４は、光ディスクの中心を通る６本の直
線で表面積を１２等分し、その各領域に円周方向に対し
て奇数フィールドの符号化データｏ'及び、偶数フィー
ルドの符号化データｅ'を交互に記録する例を示してい
る。この直線は一部または全部が曲線でも構わない。ま
た、この構成の場合、記録機構または、再生機構は１チ
ャンネルで時分割処理を行うことで実現でき、装置の規
模を小さくすることができる。[0018] Figure 4, the surface area 6 straight lines passing through the center of the optical disk 12 equal parts, the coded data o the odd field with respect to the circumferential direction of the respective regions' and the even field coded data shows an example of recording alternately e '. A part or all of this straight line may be a curved line. Further, in the case of this configuration, the recording mechanism or the reproducing mechanism can be realized by performing time-division processing on one channel, and the scale of the device can be reduced.
【００１９】なお、図１に示す本実施例では、記録側と
再生側とを併せて記載したが、記録側のみからなる光デ
ィスク記録装置、また再生側のみからなる光ディスク再
生装置の構成も考えられる。また図７に示すように、高
精細度テレビジョン信号の１フレーム期間のディジタル
画像データを２分割した画像データが標準テレビジョン
信号の１フレーム相当の画像データとして高能率符号化
し、記録された光ディスク１４から高精細度テレビジョ
ン信号及び標準テレビジョン信号をともに再生して出力
する光ディスク再生装置の構成も容易に考えられ、また
その構成も図７に示す構成に限るものでないことはいう
までもない。In the present embodiment shown in FIG. 1, the recording side and the reproducing side are described together, but an optical disk recording apparatus having only the recording side and an optical disk reproducing apparatus having only the reproducing side are also conceivable. . Further, as shown in FIG. 7, an optical disc in which image data obtained by dividing digital image data in one frame period of a high definition television signal into two is highly efficiently encoded as image data corresponding to one frame of a standard television signal and recorded. It is needless to say that the configuration of the optical disc reproducing apparatus for reproducing and outputting both the high definition television signal and the standard television signal from 14 is easily conceivable, and the configuration is not limited to the configuration shown in FIG. 7. .
【００２０】[0020]
【発明の効果】以上説明したように本発明によれば、高
精細度テレビジョン信号を２分割して各分割単位毎に高
能率符号化し、２チャンネルの記録機構によって光ディ
スクに記録する構成となっているため、再生側において
２チャンネルともに復号化すれば高精細度テレビジョン
信号を、１チャンネルだけを復号化すれば標準テレビジ
ョン信号を再生することができ、更に高精細度テレビジ
ョン信号の符号化復号化に対して標準テレビジョン信号
の符号化復号化回路を用いることができる。As described above, according to the present invention, a high-definition television signal is divided into two, high-efficiency coded for each division unit, and recorded on an optical disk by a 2-channel recording mechanism. Therefore, a high definition television signal can be reproduced by decoding both channels on the reproducing side, and a standard television signal can be reproduced by decoding only one channel, and the code of the high definition television signal can be reproduced. A standard television signal encoding / decoding circuit can be used for the encoding / decoding.
【図１】本発明の一実施例における光ディスク記録再生
装置のブロック図FIG. 1 is a block diagram of an optical disc recording / reproducing apparatus according to an embodiment of the present invention.
【図２】奇数フィールドの符号化データと偶数フィール
ドの符号化データを記録する光ディスク上の記録領域の
一例を示す図FIG. 2 is a diagram showing an example of a recording area on an optical disc for recording coded data of odd fields and coded data of even fields.
【図３】奇数フィールドの符号化データと偶数フィール
ドの符号化データを記録する光ディスク上の記録領域の
他の例を示す図FIG. 3 is a diagram showing another example of a recording area on an optical disc for recording coded data of odd fields and coded data of even fields.
【図４】奇数フィールドの符号化データと偶数フィール
ドの符号化データを記録する光ディスク上の記録領域の
さらに他の例を示す図FIG. 4 is a diagram showing still another example of a recording area on an optical disc for recording coded data of odd fields and coded data of even fields.
【図５】可変長符号化された奇数フィールドの符号化デ
ータと偶数フィールドの符号化データのデータ長を１フ
レーム期間ｔｆを単位として一致させることを模式的に
示す図FIG. 5 is a diagram schematically showing that the data lengths of the variable-length coded odd-field coded data and the even-field coded data are matched with each other in one frame period tf.
【図６】従来の光ディスク記録再生装置のブロック図FIG. 6 is a block diagram of a conventional optical disc recording / reproducing apparatus.
【図７】本発明の一実施例における光ディスク再生装置
のブロック図FIG. 7 is a block diagram of an optical disk reproducing device according to an embodiment of the present invention.
１１ フィールド分割回路 １２ 符号化器 １３ 符号化器 １４ 光ディスク １５ 復号化器 １６ 復号化器 １７ フレーム合成回路 11 field division circuit 12 encoder 13 encoder 14 optical disk 15 decoder 16 decoder 17 frame synthesis circuit
Claims (13)
１フレーム期間のディジタル画像データを２つに分割す
る手段と、前記分割された画像データをそれぞれ標準テ
レビジョン信号の１フレーム相当の画像データとして高
能率符号化または復号化を施す手段とを具備した光ディ
スク記録再生装置。1. A means for dividing digital image data of one frame period into two in a high definition television signal, and the divided image data as image data corresponding to one frame of a standard television signal, respectively. An optical disc recording / reproducing apparatus comprising means for performing high efficiency encoding or decoding.
号の分割単位はフィールド毎であることを特徴とする請
求項１記載の光ディスク記録再生装置。2. The optical disk recording / reproducing apparatus according to claim 1, wherein the unit of division of the high definition television signal in one frame period is each field.
単位毎に１チャンネル、合計２チャンネルの記録機構ま
たは再生機構によって記録または再生することを特徴と
する請求項１記載の光ディスク記録再生装置。3. The optical disk recording / reproducing according to claim 1, wherein the high-efficiency coded data is recorded or reproduced by a recording mechanism or a reproducing mechanism of 2 channels in total for each division unit. apparatus.
は、２つのヘッドを用いることを特徴とする請求項３記
載の光ディスク記録再生装置。4. The optical disk recording / reproducing apparatus according to claim 3, wherein the two-channel recording mechanism or reproducing mechanism uses two heads.
は、光ディスクの両面のそれぞれの面を用いることを特
徴とする請求項４記載の光ディスク記録再生装置。5. The optical disk recording / reproducing apparatus according to claim 4, wherein the two-channel recording mechanism or reproducing mechanism uses both surfaces of the optical disk.
は、並行する２本のスパイラルトラックのそれぞれを用
いることを特徴とする請求項１記載の光ディスク記録再
生装置。6. The optical disk recording / reproducing apparatus according to claim 1, wherein the two-channel recording mechanism or reproducing mechanism uses two spiral tracks in parallel.
は、光ディスクの表面積を所定半径の円を境界として２
分し、前記２分された領域の内周部分と外周部分のそれ
ぞれを用いることを特徴とする請求項４記載の光ディス
ク記録再生装置。7. A two-channel recording mechanism or reproducing mechanism has a surface area of an optical disk which is divided by a circle having a predetermined radius as a boundary.
5. The optical disc recording / reproducing apparatus according to claim 4, wherein each of an inner peripheral portion and an outer peripheral portion of the divided area is used.
は、光ディスクの中心を通る複数の直線または曲線で光
ディスクの表面積をＮ（Ｎは自然数で偶数）等分し、前
記Ｎ等分された領域を円周方向にそれぞれ、各分割単位
に高能率符号化された符号化データ群に対して、交互に
用いることを特徴とする請求項３記載の光ディスク記録
再生装置。8. A two-channel recording or reproducing mechanism divides the surface area of the optical disc into N (N is an even number) even number with a plurality of straight lines or curved lines passing through the center of the optical disc, and dividing the N divided regions. 4. The optical disk recording / reproducing apparatus according to claim 3, wherein the optical disk recording / reproducing apparatus is alternately used for a high-efficiency coded data group for each division in the circumferential direction.
信号の各分割単位の符号化データは可変長データであっ
て、所定再生期間にわたって、各分割単位毎に可変長デ
ータ列のデータ量を計数する手段と、前記計数手段によ
り計数された２種類のデータ量の多い方のデータ量にな
るように、データ量の少ない方のフィールドのデータ量
に疑似データを付加する手段とを具備することを特徴と
する請求項３記載の光ディスク記録再生装置。9. The high-efficiency coded high-definition television signal encoded data in each division unit is variable length data, and the data amount of a variable length data string in each division unit over a predetermined reproduction period. And a means for adding pseudo data to the data amount of the field having the smaller data amount so that the data amount of the two types having the larger data amount counted by the counting device is obtained. The optical disk recording / reproducing apparatus according to claim 3, wherein
の１フレーム期間のディジタル画像データを２つに分割
することにより得た分割単位毎の画像データが標準テレ
ビジョン信号の１フレーム相当の画像データとして高能
率符号化し、記録された光ディスク。10. In a high definition television signal, image data for each division unit obtained by dividing the digital image data of one frame period into two is used as image data corresponding to one frame of a standard television signal. An optical disc recorded with high efficiency coding.
期間のディジタル画像データの分割単位は、フィールド
毎であることを特徴とする請求項１０記載の光ディス
ク。11. The optical disc according to claim 10, wherein the division unit of the digital image data in one frame period of the high definition television signal is each field.
割単位毎に１チャンネル、合計２チャンネルで記録され
た請求項１０記載の光ディスク。12. The optical disc according to claim 10, wherein the high-efficiency encoded data is recorded on one channel for each division unit, for a total of two channels.
期間のディジタル画像データを２つに分割することによ
り得た分割単位毎の画像データが標準テレビジョン信号
の１フレーム相当の画像データとして高能率符号化し、
記録された光ディスクから高精細度テレビジョン信号ま
たは標準テレビジョン信号または高精細度テレビジョン
信号及び標準テレビジョン信号を復号する復号化手段を
備えたことを特徴とする光ディスク再生装置。13. Image data for each division unit obtained by dividing the digital image data of one frame period of a high definition television signal into two are highly efficient as image data corresponding to one frame of a standard television signal. Encode,
An optical disk reproducing apparatus comprising a decoding means for decoding a high definition television signal, a standard television signal, a high definition television signal and a standard television signal from a recorded optical disc.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5133138A JPH06350968A (en) | 1993-06-03 | 1993-06-03 | Optical disk recording and reproducing device and optical disk |
| US08/253,803 US5596421A (en) | 1993-06-03 | 1994-06-03 | Optical disk recorder for video signals and an optical disk for use therein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5133138A JPH06350968A (en) | 1993-06-03 | 1993-06-03 | Optical disk recording and reproducing device and optical disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06350968A true JPH06350968A (en) | 1994-12-22 |
Family
ID=15097652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5133138A Pending JPH06350968A (en) | 1993-06-03 | 1993-06-03 | Optical disk recording and reproducing device and optical disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06350968A (en) |
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-
1993
- 1993-06-03 JP JP5133138A patent/JPH06350968A/en active Pending
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