JPH0620337A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPH0620337A
JPH0620337A JP4176514A JP17651492A JPH0620337A JP H0620337 A JPH0620337 A JP H0620337A JP 4176514 A JP4176514 A JP 4176514A JP 17651492 A JP17651492 A JP 17651492A JP H0620337 A JPH0620337 A JP H0620337A
Authority
JP
Japan
Prior art keywords
signal
tape
recording
index signal
songs
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
Application number
JP4176514A
Other languages
Japanese (ja)
Inventor
Yoshiaki Matsuoka
義明 松岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Image Information Systems Inc
Hitachi Ltd
Hitachi Advanced Digital Inc
Original Assignee
Hitachi Image Information Systems Inc
Hitachi Ltd
Hitachi Video and Information System Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Image Information Systems Inc, Hitachi Ltd, Hitachi Video and Information System Inc filed Critical Hitachi Image Information Systems Inc
Priority to JP4176514A priority Critical patent/JPH0620337A/en
Publication of JPH0620337A publication Critical patent/JPH0620337A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

PURPOSE:To improve operability in program serching of a KARAOKE (orchestration without lyrics) video tape. CONSTITUTION:The KARAOKE tape is inserted in a VTR and reproducing or serching mode is set, a signal inputted from an audio head 1 is demodulated by an audio signal demodulator circuit 2 and inputted in a comparator 3, then no signal is detected. The detected signal is inputted in a controller 4 and an instruction to recording an index signal is outputted to a control signal recording device 5, then the index signal is recorded on a tape 7 through a CTR head 6. After recording, the reproducing or serching mode is set again, and when intermusic is serched, the index signal is recorded.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、頭だしの機能を持つ磁
気記録再生装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus having a function of head search.

【0002】[0002]

【従来の技術】従来の技術としては、例えば特開昭55
ー14542号公報に記載されているようにCTLのコ
ントロール信号のデューティー比を変化させインデック
ス信号としていることが知られている。VTRの記録の
開始時などにこのインデックス信号はテープ上に自動的
に記録されるようになっているものがある。このような
VTRにおいてはテープを早送りや巻戻しを行っている
状態にてテープよりインデックス信号を検出することが
出来、各プログラムの頭だしの機能として動作する様に
なっている。
2. Description of the Related Art As a conventional technique, for example, Japanese Patent Laid-Open No.
It is known that the duty ratio of the CTL control signal is changed to be used as the index signal as described in Japanese Patent Publication No. 14542. In some cases, the index signal is automatically recorded on the tape at the time of starting the recording of the VTR. In such a VTR, the index signal can be detected from the tape while the tape is being fast forwarded or rewound, and the VTR operates as a function to start each program.

【0003】[0003]

【発明が解決しようとする課題】しかしこのインデック
ス信号が記録されていないビデオカラオケテ−プにイン
デックス信号を記録するためにはVTRを再生しサ−チ
を行ないながら曲間を探して再生モ−ドにしたのちイン
デックス書き込みボタンを押す必要があり5曲入りのビ
デオテ−プの場合はこの動作を5回行なう必要があり操
作が複雑になってしまう。
However, in order to record the index signal in the video karaoke tape in which the index signal is not recorded, the VTR is reproduced, and the search is performed while searching between the tracks while performing the search. It is necessary to press the index write button after switching to the play mode, and in the case of a video tape containing 5 songs, this operation needs to be performed 5 times, which complicates the operation.

【0004】[0004]

【課題を解決するための手段】そこでカラオケの曲と曲
の間には必ず無音声の区間が存在するところに着目し、
無音声の区間を再生もしくはサーチ時に自動判別してイ
ンデックス信号を自動的に記録するようにする。このこ
とにより曲の頭には必ずインデックス信号が記録され
る。
[Means for Solving the Problems] Then, paying attention to the fact that there is always an unvoiced section between karaoke songs,
An index signal is automatically recorded by automatically discriminating a silent section during reproduction or search. As a result, the index signal is always recorded at the beginning of the song.

【0005】[0005]

【作用】この様に装置が動作することにより、テープ上
に曲の頭には必ずインデックス信号が記録されるため、
操作が簡単かつ正確になる。
By operating the device in this way, the index signal is always recorded at the beginning of the music on the tape.
Easy and accurate operation.

【0006】[0006]

【実施例】本発明の実施例を図1を用いて説明する。EXAMPLE An example of the present invention will be described with reference to FIG.

【0007】図1は本発明によるVTRの構成を示す。
カラオケビデオテープを本発明のVTRに挿入しインデ
ックス記録スイッチ10を押すと制御装置4に入力され
自動的にテープの頭まで巻戻し再生もしくはサーチモー
ドに入る、そこでオーディオへツド1より入力された信
号は、音声信号復調回路2により復調される。つぎに比
較器3に入力される。比較器3においては、入力された
信号と基準の信号とを比較し、ある基準の音声レベル以
下になったこと即ち無信号を検知するように動作する。
この検知した信号は制御装置4に入力される。制御装置
4においては比較器3からの入力がある時間無信号とな
った時、曲間まで巻戻したのちコントロール信号記録装
置5に対しインデックス信号記録の命令を出す。コント
ロール信号記録装置5ではこの命令を受け取るとインデ
ックス信号をCTLヘッド6を介してテープ7上に記録
する。(VHS規格による頭だしコ−ド)記録したのち
ふたたび再生もしくはサーチモードになり曲間を捜して
はインデックス信号を記録するように制御しテープエン
ドまでこの動作を繰り返す。
FIG. 1 shows the structure of a VTR according to the present invention.
When a karaoke video tape is inserted into the VTR of the present invention and the index recording switch 10 is pressed, it is input to the control device 4 and automatically rewinds to the head of the tape or enters the search mode, where the signal input from the audio head 1 is input. Are demodulated by the audio signal demodulation circuit 2. Then, it is input to the comparator 3. The comparator 3 compares the input signal with the reference signal, and operates so as to detect that the signal level is below a certain reference audio level, that is, no signal is detected.
This detected signal is input to the control device 4. In the control device 4, when the signal from the comparator 3 is not signaled for a certain period of time, the control signal recording device 5 rewinds to the interval between songs and then issues an index signal recording command to the control signal recording device 5. When the control signal recording device 5 receives this command, the index signal is recorded on the tape 7 via the CTL head 6. (Starting code according to the VHS standard) After recording, the reproduction or search mode is resumed, and control is performed so that an index signal is recorded after searching between tracks, and this operation is repeated until the tape end.

【0008】もう一つの実施例として上記実施例に於い
て制御装置4にて曲間をカウントするようにし、コント
ロ−ル信号記録装置5に何曲目かデ−タ−を送りインデ
ックス信号にこのデ−タ−(VHS規格による番地コ−
ド)を入力し記録させる。
As another embodiment, in the above-described embodiment, the control unit 4 is used to count the intervals between songs, and the control signal recording unit 5 is supplied with data indicating the number of songs, and this data is sent to the index signal. -Ter (Address code according to VHS standard-
Enter) and record.

【0009】次に図2を用いて説明する、このようにし
てインデックス信号を書き込んだカラオケビデオテ−プ
を用いると再生時及び早送り、巻戻し時にはCTLヘッ
ド6にて取り出したコントロール信号はコントロール信
号再生装置8により再生され、取り出された信号は制御
装置4に入力され、制御装置4によりインデックス信号
の判断する。制御装置4は早送りや巻戻しのとき、この
インデックス信号を判別し検知できたところで停止また
は再生となるように動作する。又表示装置9にて今何曲
目か標示させる。
Next, with reference to FIG. 2, when the karaoke video tape in which the index signal is written in this way is used, the control signal taken out by the CTL head 6 at the time of reproduction and fast forward and rewind is the control signal reproduction. The signal reproduced and taken out by the device 8 is input to the control device 4, and the control device 4 judges the index signal. At the time of fast-forwarding or rewinding, the control device 4 operates so as to stop or play when it can detect and detect this index signal. In addition, the display device 9 indicates the number of the song.

【0010】[0010]

【発明の効果】この様に動作することにより、音声の曲
間でインデックス信号をテープ上に記録することが出来
る。テープ上の曲間に必ずインデックス信号があるため
頭だしが容易にかつ正確に出来る。
By operating in this manner, the index signal can be recorded on the tape between the voice songs. Since there is always an index signal between the songs on the tape, the head can be easily and accurately cued.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例を示す図である。FIG. 1 is a diagram showing an embodiment of the present invention.

【図2】本発明の実施例を示す図である。FIG. 2 is a diagram showing an example of the present invention.

【符号の説明】[Explanation of symbols]

1…オーデオヘッド、 2…音声信号復調回路、 3…比較器、 4…制御装置、 5…コントロール信号記録装置、 6…CTLヘッド、 7…テープ、 8…コントロール信号再生装置、 9…表示装置、 10…インデックス記録スイッチ。 DESCRIPTION OF SYMBOLS 1 ... Audio head, 2 ... Audio signal demodulation circuit, 3 ... Comparator, 4 ... Control device, 5 ... Control signal recording device, 6 ... CTL head, 7 ... Tape, 8 ... Control signal reproducing device, 9 ... Display device, 10 ... Index recording switch.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】頭出し機能を動作させるためコントロール
信号のデューティを変化させ頭の部分やプログラムの情
報を示すインデックス信号をテープ上に記録する手段
と、早送り及び巻戻し時にテープ上に記録されたこのイ
ンデックス信号を検出する手段を持ち、頭だしの操作に
より任意のプログラムの頭だしが可能な頭だし機能付き
磁気記録再生装置に於て、音声信号より曲間であると判
断する手段を持ち、再生もしくはサーチ時に曲間と判断
することによりインデックス信号を自動的にテープ上に
記録する手段を持つことを特徴とする磁気記録再生装
置。
1. A means for changing the duty of a control signal to operate a cue function and recording an index signal indicating the head portion and program information on the tape, and a means for recording the index signal on the tape during fast forward and rewind. Having a means for detecting this index signal, in a magnetic recording / reproducing apparatus with a cue function capable of cueing an arbitrary program by cue operation, it has a means for judging that it is between tracks from an audio signal, A magnetic recording / reproducing apparatus having a means for automatically recording an index signal on a tape by judging that it is between songs at the time of reproducing or searching.
【請求項2】請求項1の磁気記録再生装置において、イ
ンデックス信号の情報として曲間に何曲目かを記録し再
生時及び早送り、巻き戻し時に何曲目か曲数を表示すこ
とを特徴とする磁気記録再生装置。
2. The magnetic recording / reproducing apparatus according to claim 1, wherein the number of songs is recorded between songs as information of the index signal, and the number of songs or the number of songs is displayed at the time of reproducing, fast-forwarding and rewinding. Magnetic recording / reproducing device.
JP4176514A 1992-07-03 1992-07-03 Magnetic recording and reproducing device Pending JPH0620337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4176514A JPH0620337A (en) 1992-07-03 1992-07-03 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4176514A JPH0620337A (en) 1992-07-03 1992-07-03 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPH0620337A true JPH0620337A (en) 1994-01-28

Family

ID=16014957

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4176514A Pending JPH0620337A (en) 1992-07-03 1992-07-03 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPH0620337A (en)

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