JPH064939A - Vtr - Google Patents

Vtr

Info

Publication number
JPH064939A
JPH064939A JP4162644A JP16264492A JPH064939A JP H064939 A JPH064939 A JP H064939A JP 4162644 A JP4162644 A JP 4162644A JP 16264492 A JP16264492 A JP 16264492A JP H064939 A JPH064939 A JP H064939A
Authority
JP
Japan
Prior art keywords
tape
recording
prohibition
code
rerecording
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
JP4162644A
Other languages
Japanese (ja)
Inventor
Kunihiro Yanagisawa
国弘 柳沢
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.)
Fujitsu General Ltd
Original Assignee
Fujitsu General Ltd
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 Fujitsu General Ltd filed Critical Fujitsu General Ltd
Priority to JP4162644A priority Critical patent/JPH064939A/en
Publication of JPH064939A publication Critical patent/JPH064939A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To automatically rerecord by writing the code of 4 bits indicating the prohibition and the permission of recording on the control track of a tape and prohibiting rerecording on the part of the tape desired to preserve. CONSTITUTION:When other program is recorded on the unnecessary part of the tape recorded once, reproduction is performed before the recording of the tape is started and a recording prohibition button is depressed immediately before the tape runs to the leading position of the part to be preserved, and the VASS code of recording prohibition is written in the control track 2. Then, from the start point of time of rerecording, by a control head 1, the control track 2 of the tape is coached and the VASS code of the part written with the code prohibiting the rerecording is read, and then, the VASS code releasing the prohibition of the rerecording is read and recording is started. Then, the rerecording is continued while detecting the VASS codes of the prohibition and the release by a mentioned method.

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、テープの走行状態を自
動的に監視し、テープの頭出し等が自動的に行えるVT
Rに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a VT capable of automatically monitoring the running state of a tape and automatically cueing the tape.
Regarding R.

【0002】[0002]

【従来の技術】従来、カセットVTRは長時間にわたっ
て録画や再生が可能であり、その為カセット1本に複数
の番組が録画されることが多い。この複数の番組の中に
別の番組を再録画したい場合に、再録画によって前の番
組が消去されたくない部分のテープ位置と、消去されて
もよい部分のテープ位置を検索することは面倒なことで
あった。その理由を以下に説明する。図2はVTRの磁
気テープの構造と録画と再生のメカニズムを説明するも
ので、VTRの磁気テープとその周辺部分は、ビデオト
ラック5の他に、オーディオトラック1及びコントロー
ルトラック9が設けられ、それぞれオーディオ信号、コ
ントロール信号が記録される。オーディオトラック及び
コントロールトラックは、磁気テープの上端及び下端に
走行方向に沿って設けられているので、固定されたオー
ディオヘッド3及びコントロールヘッド7に磁気テープ
が接触して走行する事によりこれらのトラックへの信号
の記録、又はこれらのトラックからの信号の再生を行う
事ができる。以上のようなテープ構造であるから、一度
録画したテープの不必要になった部分に別の番組を録画
しようとする場合には、目視によって録画を開始する部
分までテープを巻き戻しするか、あるいは早送りを行う
必要がある。又、再録画中に以前に録画した内容で、保
存しておきたい部分迄テープが走行して来た場合におい
ても、その部分にて録画を一時停止し、テープを早送り
した後に録画を開始しなければならない。あるいは前記
のように目視によらず、予めカウンター番号を記録して
おき、必要に応じてカウンターの数値をモニターしなが
らテープを走行させる方法もあるが、この場合において
も前記と同様、テープの巻き戻し、あるいは早送りをす
る必要があり、その為の煩雑さは多大なものであった。
2. Description of the Related Art Conventionally, a cassette VTR is capable of recording and reproducing for a long time, and therefore a plurality of programs are often recorded in one cassette. If you want to re-record another program among these multiple programs, it is troublesome to search for the tape position where you do not want to erase the previous program due to re-recording and the tape position where you may erase it. Was that. The reason will be described below. FIG. 2 illustrates the structure of the VTR magnetic tape and the recording and reproducing mechanism. The VTR magnetic tape and its peripheral portion are provided with an audio track 1 and a control track 9 in addition to the video track 5. Audio signals and control signals are recorded. Since the audio track and the control track are provided at the upper and lower ends of the magnetic tape along the running direction, when the magnetic tape comes into contact with the fixed audio head 3 and control head 7 to run, these tracks are reached. It is possible to record the signals of, or reproduce the signals from these tracks. Because of the tape structure as described above, when trying to record another program in an unnecessary part of the tape that has been recorded once, rewind the tape to the part where the recording is started visually, or Need to fast forward. Also, during re-recording, even if the tape runs to the part you want to save with the previously recorded contents, recording will be paused at that part and recording will start after fast-forwarding the tape. There must be. Alternatively, as mentioned above, there is also a method of recording the counter number in advance and visually running the tape while monitoring the numerical value of the counter as necessary, but in this case also, in the same manner as described above, winding the tape. It was necessary to return or fast-forward, and the complexity for that was great.

【0003】[0003]

【発明が解決しようとする課題】本発明は、上記の煩雑
さを解消するためのもので、テープの走行状態を目視あ
るいはカウンターによって監視せずに自動的に頭出しを
行い再録画することが出来るVTRを提供することにあ
る。
DISCLOSURE OF THE INVENTION The present invention is intended to solve the above-mentioned complication, and it is possible to automatically perform cueing and re-recording without observing the running state of the tape visually or by a counter. It is to provide a VTR that can.

【0004】[0004]

【課題を解決するための手段】本発明は上述の課題を解
決するため、テープのコントロールトラックに録画の禁
止と許可を示す4ビットのコード(以下VASSコード
と称する)を書き込み、テープの走行中にマイクロンコ
ンピュータが前記VASSコードを監視し、保存してお
きたいテープの部分には再録画を禁止し、再録画してよ
い部分にのみ録画するようにした。
In order to solve the above-mentioned problems, the present invention writes a 4-bit code (hereinafter referred to as VASS code) indicating prohibition and permission of recording on a control track of a tape, and the tape is running. In addition, the Micron computer monitors the VASS code, prohibits re-recording on the part of the tape to be saved, and records only on the part that can be re-recorded.

【0005】[0005]

【作用】以上のように構成したので、本発明によるVT
Rにおいては、テープ上の再録画の禁止部分と許可部分
の識別を自動的に行い、テープ早送り、録画モードも自
動的に行う。
With the above construction, the VT according to the present invention
In R, the prohibition part and the permission part of the re-recording on the tape are automatically identified, and the tape fast-forward and the recording mode are also automatically performed.

【0006】[0006]

【実施例】以下図に基づいて本発明によるVTRの実施
例を詳細に説明する。図1は本発明によるVTRテープ
の図で、1 はコントロールヘッド、2 はコントロールト
ラック、3 及び4 は再録画しても良いテープ部分、5 は
保存しておきたいテープの部分、6 は再録画を禁止する
VASSコードの書き込まれた部分、7 は再録画の禁止
を解除するVASSコードの書き込まれた部分、8 はテ
ープの走行方向を示すものである。
Embodiments of the VTR according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram of a VTR tape according to the present invention, in which 1 is a control head, 2 is a control track, 3 and 4 are tape portions that can be rerecorded, 5 is a tape portion to be saved, and 6 is a rerecording. Is a portion where a VASS code is written, 7 is a portion where a VASS code is written to release prohibition of re-recording, and 8 is a tape running direction.

【0007】次に本発明によるVTRテープの書込可能
部分の自動サーチの方法を図1によって説明する。一度
録画したテープの不必要になった部分に、別の番組を録
画しようとする場合に、前記テープの録画を開始する前
に再生を行い保存しておきたい部分の先頭位置までテー
プが走行する直前に録画禁止ボタンを押し、コントロー
ルラックに録画禁止のVASSコード(例えば2進数の
1100)を書き込む、次に再生を続行し再録画しても
よい部分の先頭位置までテープが走行する直前にて録画
解除ボタンを押し、コントロールトラックに録画解除の
VASSコード(例えば2進数の0011)を書き込
む、前記の操作を必要と考えられる部分まで繰り返す。
図3のサーチの流れ図において、31にて示した再録画の
開始時点から、コントロールヘッドによってテープのコ
ントロールトラックのサーチを行い。32にて示した再録
画を禁止するコードの書き込まれた部分のVASSコー
ドを読み取り、33にて録画を一時停止し、テープ早送り
する。35にて再録画を禁止を解除するVASSコードを
読み取り再び録画を開始する。以下前記の方法にて禁止
と解除のVASSコードを検出しながら再録画を続行す
る。
Next, a method for automatically searching the writable portion of the VTR tape according to the present invention will be described with reference to FIG. If you want to record another program in an unnecessary part of the tape that was recorded once, the tape runs to the beginning position of the part you want to play and save before recording the tape. Just before pressing the recording prohibition button, write the recording prohibition VASS code (for example, binary 1100) in the control rack, immediately before the tape runs to the beginning position of the part where re-recording may be continued next. The recording cancel button is pressed, and the recording cancellation VASS code (for example, binary number 0011) is written in the control track, and the above-described operation is repeated up to a portion considered necessary.
In the search flow chart of FIG. 3, the control head searches the control track of the tape from the start point of re-recording indicated by 31. The VASS code of the portion in which the code for prohibiting re-recording shown in 32 is written is read, and the recording is temporarily stopped in 33, and the tape is fast forwarded. At 35, read the VASS code to release the prohibition of re-recording and start recording again. The re-recording is continued while detecting the VASS code of prohibition and cancellation by the above method.

【0008】[0008]

【発明の効果】以上に説明したように、本発明によるV
TRによれば、テープの不用部分の検索の為に巻き戻し
を行ったり、早送りを行ったりする手間を省く事が出
来、自動的に再録画する事が出来る。
As described above, the V according to the present invention is used.
According to TR, it is possible to save the trouble of rewinding and fast-forwarding for searching the unnecessary portion of the tape, and it is possible to automatically re-record.

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

【図1】本発明によるVTR用テープとその周辺部の図
である。
FIG. 1 is a diagram of a VTR tape according to the present invention and its peripheral portion.

【図2】従来のにVTR用テープとその周辺部の図であ
る。
FIG. 2 is a view of a conventional VTR tape and its peripheral portion.

【図3】本発明によるサーチ機能とテープの走行状態の
制御の流れ図である。
FIG. 3 is a flow chart of a search function and control of a running state of a tape according to the present invention.

【符号の説明】[Explanation of symbols]

1 コントロールヘッド 2 コントロールトラック 3 再録画しても良いテープ部分 4 再録画しても良いテープ部分 5 保存して起きたいテープ部分 6 再録画を禁止するBASSコード 7 再録画の禁止を解除するBASSコード 8 テープの走行方向 1 control head 2 control track 3 tape part that may be re-recorded 4 tape part that may be re-recorded 5 tape part that you want to save and wake up 6 BASS code that prohibits re-recording 7 BASS code that cancels prohibition of re-recording 8 Tape running direction

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 VTRの磁気テープに再録画を行う場合
において、再録画によって前回録画した内容が消去され
てもよい部分と、消去したくない部分とを判別する為の
識別コードを予めコントロールトラックに書き込んだ磁
気テープと、前記識別コードをテープの走行中に読み取
り早送モードや再録画モードを自動的にコントロールす
る機構部と、前記の機能をコントロールするマイクロコ
ンピュータ回路とを備えたVTR。
1. When re-recording on a magnetic tape of a VTR, an identification code for discriminating between a portion where the previously recorded contents may be erased and a portion which is not desired to be erased by the re-recording is previously set in the control track. A VTR equipped with a magnetic tape written on the disc, a mechanism section for automatically controlling the fast-forward mode and the re-recording mode by reading the identification code while the tape is running, and a microcomputer circuit for controlling the function.
JP4162644A 1992-06-22 1992-06-22 Vtr Pending JPH064939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4162644A JPH064939A (en) 1992-06-22 1992-06-22 Vtr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4162644A JPH064939A (en) 1992-06-22 1992-06-22 Vtr

Publications (1)

Publication Number Publication Date
JPH064939A true JPH064939A (en) 1994-01-14

Family

ID=15758543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4162644A Pending JPH064939A (en) 1992-06-22 1992-06-22 Vtr

Country Status (1)

Country Link
JP (1) JPH064939A (en)

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