JPS6374167A - Compact disk - Google Patents
Compact diskInfo
- Publication number
- JPS6374167A JPS6374167A JP61220559A JP22055986A JPS6374167A JP S6374167 A JPS6374167 A JP S6374167A JP 61220559 A JP61220559 A JP 61220559A JP 22055986 A JP22055986 A JP 22055986A JP S6374167 A JPS6374167 A JP S6374167A
- Authority
- JP
- Japan
- Prior art keywords
- data
- information
- words
- signals
- output
- 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.)
- Granted
Links
- 230000005236 sound signal Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000013144 data compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/9201—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal
- H04N5/9206—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being a character code signal
- H04N5/9208—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving the multiplexing of an additional signal and the video signal the additional signal being a character code signal involving the use of subcodes
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、歌詞情報を提供するための所謂、カラオフ用
のコンパクトディスクに関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a so-called kara-off compact disc for providing lyrics information.
従来の技術
従来の所謂、カラオフ用のコンパクトディスクにあって
は、ディスク中のサブコーディングチャネルに歌詞情報
を画像データとして入力しておき、再生時に上記画像デ
ータをＣＲＴ等の画像表示装置に出力し、これを使用者
が読む方式が一般的である。BACKGROUND TECHNOLOGY In conventional compact discs for Karaoff, lyrics information is input as image data into a sub-coding channel on the disc, and the image data is output to an image display device such as a CRT during playback. , which is generally read by the user.
発明が解決しようとする問題点
しかしながら、上記従来のコンパクトディスクでは、歌
詞情報の再生、表示のために、グラフィックデコーダ、
グラフィックスコントローラ、ビデオＲＡＭ、カラーパ
レット等の回路及びＣＲＴ等の画像表示装置が必要とな
り、構成が複雑で高価となる等の問題があった。Problems to be Solved by the Invention However, the above-mentioned conventional compact disc requires a graphic decoder,
This requires circuits such as a graphics controller, video RAM, color palette, etc., and an image display device such as a CRT, resulting in problems such as a complicated and expensive configuration.
そこで、本発明は、このような従来の問題点を解決する
ものであり、簡単な構成で、しかも安価にして歌詞情報
を使用者に知らせることができるようにしたコンパクト
ディスクを提供しようとするものである。SUMMARY OF THE INVENTION The present invention aims to solve these conventional problems and to provide a compact disc that has a simple structure and is inexpensive, and that can inform the user of lyrics information. It is.
問題点を解決するための手段
そして上記問題点を解決するための本発明の技術的な手
段は、歌詞情報を音声信号として圧縮し、サブコーディ
ングチャネルに記録したものである。Means for solving the problems and technical means of the present invention for solving the above problems are to compress lyrics information as an audio signal and record it in a sub-coding channel.
作 用 上記技術的手段による作用は次のようになる。For production The effects of the above technical means are as follows.
すなわち、通常のカラオケを左右音声信号として再生す
るのと同時に、サブコーディングチャネルに音声信号と
して記録されている歌詞情報をサブコード復調及び圧縮
復元後、Ｄ／Ａ変換して再生する。このとき、歌詞情報
がカラオケの歌うべきタイミングに先行して出力される
ように記録されておれば、使用者は上記歌詞情報を上記
左右音声信号（カラオケ信号）出力部とは別のイヤホン
等の出力部から得ることができ、ＣＲＴ等に歌詞情報を
表示する必要がなくなる。That is, at the same time as normal karaoke is reproduced as left and right audio signals, lyrics information recorded as audio signals in the sub-coding channel is demodulated and compressed and restored by the sub-code, and then D/A converted and reproduced. At this time, if the lyrics information is recorded so as to be output before the karaoke singing timing, the user can output the lyrics information using earphones or the like that are separate from the left and right audio signal (karaoke signal) output section. The lyrics information can be obtained from the output section, eliminating the need to display lyrics information on a CRT or the like.
実施例
以下、本発明の実施例について図面を参照しながら説明
する。EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.
コンパクトディスクのサブコーディングチャネルのフォ
ーマットは下記のようになる。The format of the compact disc subcoding channel is as follows.
Ｒ，Ｓ、Ｔ、Ｕ、Ｖ％Ｗ（Ｄ６ ピッ）でｌＶ’／ボノ
ベ ２４シンボルで１パツク、４パツクで１パケツトを
それぞれ構成し、１パケツトの伝送速度は７５パケット
／秒である。R, S, T, U, V%W (D6 pips) make up 1 pack with 24 symbols and 1 packet with 4 packs, and the transmission rate of one packet is 75 packets/second.
また上記パック構成はモードにより異なり、本発明に用
いるユーザモードの場合には第３図に示すようになる。Further, the pack configuration described above differs depending on the mode, and in the case of the user mode used in the present invention, it is as shown in FIG. 3.
すなわち、ＭＯＤＥ（ユーザモード）＝７＝１１１、Ｉ
ＴＥＭ＝Ｏ＝ＯＯ０１ＩＮＳＴＲＵＣＴＩＯＮ。That is, MODE (user mode) = 7 = 111, I
TEM=O=OO01INSTRUCTION.
ＤＡＴＡ−ＦＩＥＬＤはユーザによる決定、ＰＡＲＩＴ
ＹＱＯ，ＰＡＲＩＴＹＱｌはＳＹＭＢＯＬＯ〜３のエラ
ー検出及び訂正用、ＰＡＲＩＴＹ ＰＯｌＰＡＲＩＴＹ
ＰＩ、ＰＡＲＩＴＹ Ｐ２、ＰＡＲＩＴＹＰ３はＳＹ
ＭＤＯＬＯ〜２３のエラー検出及び訂正用である。従っ
て歌詞データ領域として使用することができるデータ領
域の平均伝送速度は次のようになる。DATA-FIELD is determined by the user, PARIT
YQO, PARITYQl is for error detection and correction of SYMBOLO~3, PARITY POlPARITY
PI, PARITY P2, PARITY P3 are SY
This is for error detection and correction of MDOLO~23. Therefore, the average transmission speed of a data area that can be used as a lyrics data area is as follows.
６（ビット）Ｘ１６（シンボル）×４（パック）Ｘ７５
（パケット）＝２８８００ビット／秒一方、歌詞情報の
音声帯域を２．７ＫＨ２、サンプルレートな６．４ＫＨ
ｚ、量子化ピット数を７ビツトとすると、この場合のビ
ットレートは４４８００ビット／秒となり、上記データ
領域にリアルタイムで記録することは不可能となる。そ
こで、例えば、４４．８にピット７秒のデータを１６に
ピット７秒のデータにデータ圧縮するデータ圧縮装置を
用いることにより、データ領域での伝送速度を１６００
０ピット／秒にすることができる。これはデータ領域の
平均伝送速度以下であるからデータ領域への記録が可能
となる。すなわち、第１図に示すようにコンパクトディ
スク用二ンコーディングシステム１の一部を構成するサ
ブコードエンコーダ２のＲ−Ｗコーディングチャネルの
入力信号として、歌詞情報の音声信号を低域フィルタ（
ＬＰＦ）５を通した後、アナログディジタルコンバータ
（ＡＤＣ）４でアナログ信号からディジタル変換し、こ
れを圧縮装置３を通すことにより圧縮し、サブコーディ
ングデータ領域にリアルタイムで記録することができる
。6 (bits) x 16 (symbols) x 4 (packs) x 75
(Packet) = 28,800 bits/sec On the other hand, the audio band of lyrics information is 2.7KH2, and the sample rate is 6.4KH.
If the number of quantization pits is 7 bits, the bit rate in this case is 44,800 bits/sec, making it impossible to record in the data area in real time. Therefore, for example, by using a data compression device that compresses data of 7 seconds of pits at 44.8 to data of 7 seconds of pits at 16, the transmission speed in the data area can be increased to 1600.
It can be set to 0 pits/second. Since this is less than the average transmission speed of the data area, it is possible to record in the data area. That is, as shown in FIG. 1, the audio signal of lyrics information is passed through a low-pass filter (
After passing through the low pass filter (LPF) 5, the analog signal is converted into a digital signal by an analog digital converter (ADC) 4, compressed by passing through the compression device 3, and can be recorded in the sub-coding data area in real time.
サブコードの復調に際しては、第３図に示すように通常
のＣＤプレーヤの信号処理部６の出力であるＰ、Ｑ、Ｒ
，Ｓ、Ｔ、Ｕ、Ｖ、Ｗの計８ビットの１組のサブコード
データ中からＲ〜Ｗの６ビツト（１シンボル）データを
順次データ復元装置７に入力し、圧縮されたデータの復
元を行ない、これを増幅回路８を通してイヤホン等で聞
くことができる。When demodulating the subcode, as shown in FIG.
, S, T, U, V, W from a set of 8-bit subcode data, R to W 6-bit (1 symbol) data are sequentially input to the data decompression device 7, and the compressed data is decompressed. This can be heard through earphones etc. through the amplifier circuit 8.
発明の効果
本発明は上記より明らかなように歌詞情報な音声信号と
してデータ圧縮し、サブコーディングチャネルに記録し
ているので、歌詞情報を左右両チャネルの音声信号（カ
ラオケ信号）と別チャネルで再生し、これをイヤホン等
で聞くことができ、簡単な構成で安価にして従来の映像
情報として再生する方式と実質的に等価で歌詞情報を使
用者に提供することができる。Effects of the Invention As is clear from the above, the present invention compresses data as an audio signal containing lyrics information and records it in a sub-coding channel, so the lyrics information can be played back on a separate channel from the left and right audio signals (karaoke signals). However, this can be listened to through earphones, etc., and it is possible to provide lyrics information to the user with a simple configuration and low cost, substantially equivalent to the conventional method of reproducing video information.
第１図は本発明のコンパクトディスクを製作するための
ブロック回路図、第２図は本発明のコンパクトディスク
の再生のためのブロック回路図、第３図はユーザーズビ
ッ）（Ｒ−Ｗ）のパックの構成を示す説明図である。
１・・・エンコーディングシステム、２°−＋ ７’
：ｆｆ −ドエンコーダ、３・・・データ圧縮装置、４
・・・アナログディジタルコンバータ、５・・・低域フ
ィルタ、６・・・信号処理部、７・・・データ復元装置
、８・・・増幅回路。
代理人の氏名 弁理士 中 尾 敏 男 はか１名第３
図
Ｓｙｍｂｏｌ
θ
量
今
７２ＳＴＩＪＶＷ
書
■
■
１ＰＡ２ｆｆＹＰ３１Figure 1 is a block circuit diagram for producing the compact disc of the present invention, Figure 2 is a block circuit diagram for playing the compact disc of the present invention, and Figure 3 is a user's bit (R-W) pack. FIG. 2 is an explanatory diagram showing the configuration of. 1...Encoding system, 2°-+7'
:ff-de encoder, 3... data compression device, 4
...Analog-digital converter, 5..Low-pass filter, 6.. Signal processing section, 7.. Data restoration device, 8.. Amplification circuit. Name of agent: Patent attorney Toshio Nakao (3rd person)
Figure Symbol θ Quantity Now 72STIJVW Book ■ ■ 1PA2ffYP31
Claims (1)
ングチャネルに記録したことを特徴とするコンパクトデ
ィスク。A compact disc characterized in that lyrics information is data-compressed as an audio signal and recorded in a sub-coding channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61220559A JP2532402B2 (en) | 1986-09-17 | 1986-09-17 | Compact disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61220559A JP2532402B2 (en) | 1986-09-17 | 1986-09-17 | Compact disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6374167A true JPS6374167A (en) | 1988-04-04 |
| JP2532402B2 JP2532402B2 (en) | 1996-09-11 |
Family
ID=16752890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61220559A Expired - Fee Related JP2532402B2 (en) | 1986-09-17 | 1986-09-17 | Compact disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2532402B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0339931A2 (en) * | 1988-04-25 | 1989-11-02 | Pioneer Electronic Corporation | Method and apparatus for recording and reproducing picture information, and recording medium |
| EP0465247A2 (en) * | 1990-07-06 | 1992-01-08 | Pioneer Electronic Corporation | Information storage medium and apparatus for reproducing information therefrom |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956615U (en) * | 1982-10-07 | 1984-04-13 | 日本マランツ株式会社 | magnetic tape playback device |
| JPS6180690A (en) * | 1984-09-28 | 1986-04-24 | Toshiba Corp | Digital disk and digital disk record reproducing device |
-
1986
- 1986-09-17 JP JP61220559A patent/JP2532402B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5956615U (en) * | 1982-10-07 | 1984-04-13 | 日本マランツ株式会社 | magnetic tape playback device |
| JPS6180690A (en) * | 1984-09-28 | 1986-04-24 | Toshiba Corp | Digital disk and digital disk record reproducing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0339931A2 (en) * | 1988-04-25 | 1989-11-02 | Pioneer Electronic Corporation | Method and apparatus for recording and reproducing picture information, and recording medium |
| EP0465247A2 (en) * | 1990-07-06 | 1992-01-08 | Pioneer Electronic Corporation | Information storage medium and apparatus for reproducing information therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2532402B2 (en) | 1996-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |