JPS6180601A - Magnetic tape device - Google Patents

Magnetic tape device

Info

Publication number
JPS6180601A
JPS6180601A JP20321884A JP20321884A JPS6180601A JP S6180601 A JPS6180601 A JP S6180601A JP 20321884 A JP20321884 A JP 20321884A JP 20321884 A JP20321884 A JP 20321884A JP S6180601 A JPS6180601 A JP S6180601A
Authority
JP
Japan
Prior art keywords
magnetic tape
control circuit
information
marker
tape
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
JP20321884A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Nakajima
中島　良之
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP20321884A priority Critical patent/JPS6180601A/en
Publication of JPS6180601A publication Critical patent/JPS6180601A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To increase usable amount of information by providing a means reading information at a region before the start marker of a magnetic tape at loading of the magnetic tape and a means writing the information to said region at unloading of the magnetic tape. CONSTITUTION:A circuit for controlling a region prior to a start marker takes over the control of the region prior to a start marker of a magnetic tape of a read control circuit 2, a write control circuit 3 and a running control circuit 4 from an interface control circuit 1 and processes the information. After the start marker of the magnetic tape is detected at the loading of the magnetic tape, the tape is reversed by a distance to the region before the start point of the magnetic tape to read the information, then the tape is forwarded until the magnetic tape start point marker is detected to bring the mode to the magnetic tape device ready. At unloading of the magnetic tape, after the magnetic tape start point marker is detected, the tape is reversed by a distance, the write control circuit 3 is activated by a time writing the information while the tape is forwarded up to the magnetic tape start point marker forcibly and after the magnetic tape start point marker is detected, the normal unloading is attained.

Description

【発明の詳細な説明】 〔技術分野〕 本発明は電子計算機等の情報処理装置の一部として使用
する磁気テープ装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a magnetic tape device used as a part of an information processing device such as an electronic computer.

〔従来技術〕[Prior art]

従来この種の磁気テープ装置の構成を第１図に示す。イ
ンタフェース制御回路１は上位装置とのインタフェース
信号の制御を行う。読取り制御回路２は磁気テープに書
込まれた情報を読取りインタフェース制御回路ＩＫ送る
。書込み制御回路３はインタフェース制御回路１からの
情報を磁気テープに書込む。走行制御回路４はインタフ
ェース制御回路１からの制御によりリールモータ及びキ
ャプスタン七−夕等の制御を行なう。The configuration of a conventional magnetic tape device of this type is shown in FIG. An interface control circuit 1 controls interface signals with a host device. The read control circuit 2 sends the information written on the magnetic tape to the read interface control circuit IK. The write control circuit 3 writes information from the interface control circuit 1 onto the magnetic tape. The travel control circuit 4 controls the reel motor, capstan Tanabata, etc. under control from the interface control circuit 1.

読取り動作及び書込み動作においては、磁気テープが磁
気チーブ始端マーカより磁気テープ終端領域までの区間
に於いてインタフェース制御回路ｌの制御により読取り
制御回路２．書込み制御回路３及び走行制御回路４の制
御をうける。したがって磁気テープ始端マーカ以前の領
域では読取り動作及び書込み動作が出来ないという欠点
がありた。In read and write operations, the read control circuit 2. It is controlled by a write control circuit 3 and a travel control circuit 4. Therefore, there is a drawback that reading and writing operations cannot be performed in the area before the magnetic tape start marker.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、従来利用され【ない磁気テープ始端マ
ーカ以前の領域で、磁気テープのローディング時は読取
り、アンロード時は磁気テープに書込みを可能とする事
により、上記欠点を解決し、利用されてなかった領域の
情報を利用できるようにした磁気テープ装置を提供する
ことにある。The purpose of the present invention is to solve the above-mentioned drawbacks and utilize the area before the magnetic tape start marker, which has not been used conventionally, by making it possible to read when loading a magnetic tape and write to the magnetic tape when unloading. An object of the present invention is to provide a magnetic tape device that makes it possible to utilize information in areas that have not been previously used.

〔発明の構成〕[Structure of the invention]

本発明の磁気テープ装置は、上位装置とのインタフェー
ス制御を行うインタフェース制御回路と、磁気テープに
書込まれた情報を読取り前記インタフェース制御回路に
送る読取り制御回路と、前記インタフェース制御回路か
らを情報を前記磁気テープに書込む書込み制御回路と、
前記インタフェース制御回路からの制御によりモータの
走行制御を行う走行制御回路とを有する磁気テープ装置
において、前記磁気テープのローディング時に前記磁気
テープの始端マーカ以前の領域で情報を読取る手段と、
前記磁気テープのアンローディング時に前記領域に情報
を書込む手段とを有することを特徴とするものである。The magnetic tape device of the present invention includes an interface control circuit that performs interface control with a host device, a read control circuit that reads information written on the magnetic tape and sends it to the interface control circuit, and a read control circuit that reads information from the interface control circuit. a write control circuit for writing on the magnetic tape;
In a magnetic tape device having a travel control circuit that controls the travel of a motor under control from the interface control circuit, means for reading information in an area before a starting end marker of the magnetic tape when loading the magnetic tape;
The apparatus is characterized by comprising means for writing information into the area when unloading the magnetic tape.

〔実施例〕〔Example〕

次に本発明の実施例について図面を参照して説明する。 Next, embodiments of the present invention will be described with reference to the drawings.

第２図に於いて始端マーカ以前領域制御回路５は、読取
り制御回路２．書込み制御回路３及び走行制御回路４の
、磁気テープのローディング時及びアンロード時の磁気
テープ始端マーカ以前領域に関する制御をインタフェー
ス制御回路１から受継ぎ、処理を行う。In FIG. 2, the area control circuit 5 before the start end marker is the read control circuit 2. The write control circuit 3 and the running control circuit 4 inherit from the interface control circuit 1 the control regarding the area before the magnetic tape start end marker when loading and unloading the magnetic tape, and perform processing.

磁気テープのローディング時は磁気テープ始端マーカ検
出後、磁気テープ始端以前の領域へある距離だけパック
ワード走行させ情報を読取る０その後、磁気テープ始端
マーカを検出するまでフォワード走行し、磁気テープ装
置レディとする。磁気テープのアンロード時は磁気テー
プ始端テープ始端マーカ検出後、磁気テープ始端以前の
領域へある距離だけバックワード走行する。その後、磁
気テープ始端マーカまでフォワード走行する間に情報を
書込む時間だけ強制的に書込み制御回路３を動作させ磁
気テープ始端マーカ検出後は通常のアンロード動作を行
う。When loading a magnetic tape, after detecting the magnetic tape start end marker, the packed word travels a certain distance to the area before the magnetic tape start end and reads the information. After that, forward travel is performed until the magnetic tape start end marker is detected, and the magnetic tape device is ready. do. When unloading a magnetic tape, after detecting the magnetic tape starting edge marker, it moves backward a certain distance to an area before the magnetic tape starting edge. Thereafter, the write control circuit 3 is forcibly operated for the time required to write information while forward traveling to the magnetic tape start marker, and after the magnetic tape start marker is detected, a normal unloading operation is performed.

〔発明の効果〕〔Effect of the invention〕

本発明は以上説明したように従来使用されてなかった磁
気テープ始端マーカ以前の領域での情報の読取り及び書
込みを可能とすることにより情報員の拡大に伴う各愼サ
ービスができる。As described above, the present invention makes it possible to read and write information in the area before the magnetic tape start marker, which has not been used in the past, thereby making it possible to provide various services as the number of information personnel increases.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の磁気テープ装置を示すブロック図、第２
図は本発明の一実施例を示すブロック図である。 １・・・・・・インタフェース制御回路、２・・・・・
・読取り制御回路、３・・・・・・書込み制御回路、４
・・・・・・走行制御回路、５・・・・・・始端マーカ
以前領域制御回路。 第１図Figure 1 is a block diagram showing a conventional magnetic tape device, Figure 2 is a block diagram showing a conventional magnetic tape device.
The figure is a block diagram showing one embodiment of the present invention. 1... Interface control circuit, 2...
・Read control circuit, 3...Write control circuit, 4
...Travel control circuit, 5...Start marker area control circuit. Figure 1

Claims (1)

【特許請求の範囲】[Claims] 上位装置とのインタフェース制御を行うインタフェース
制御回路と、磁気テープに書込まれた情報を読取り前記
インタフェース制御回路に送る読取り制御回路と、前記
インタフェース制御回路からを情報を前記磁気テープに
書込む書込み制御回路と、前記インタフェース制御回路
からの制御によりモータの走行制御を行う走行制御回路
とを有する磁気テープ装置において、前記磁気テープの
ローディング時に前記磁気テープの始端マーカ以前の領
域で情報を読取る手段と、前記磁気テープのアンローデ
ィング時に前記領域に情報を書込む手段とを有すること
を特徴とする磁気テープ装置。an interface control circuit that performs interface control with a host device; a read control circuit that reads information written on a magnetic tape and sends it to the interface control circuit; and a write control circuit that writes information from the interface control circuit onto the magnetic tape. and a travel control circuit that controls the travel of a motor under control from the interface control circuit, a means for reading information in an area before a starting end marker of the magnetic tape when loading the magnetic tape; A magnetic tape device comprising means for writing information into the area when unloading the magnetic tape.
JP20321884A 1984-09-28 1984-09-28 Magnetic tape device Pending JPS6180601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20321884A JPS6180601A (en) 1984-09-28 1984-09-28 Magnetic tape device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20321884A JPS6180601A (en) 1984-09-28 1984-09-28 Magnetic tape device

Publications (1)

Publication Number Publication Date
JPS6180601A true JPS6180601A (en) 1986-04-24

Family

ID=16470414

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20321884A Pending JPS6180601A (en) 1984-09-28 1984-09-28 Magnetic tape device

Country Status (1)

Country Link
JP (1) JPS6180601A (en)

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