JPH0420607U - - Google Patents
Info
- Publication number
- JPH0420607U JPH0420607U JP5851190U JP5851190U JPH0420607U JP H0420607 U JPH0420607 U JP H0420607U JP 5851190 U JP5851190 U JP 5851190U JP 5851190 U JP5851190 U JP 5851190U JP H0420607 U JPH0420607 U JP H0420607U
- Authority
- JP
- Japan
- Prior art keywords
- tape
- cleaning
- magnetic
- magnetic head
- magnetic 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
Links
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
第１図は本考案の一実施例である磁気テープ記
録再生装置１の基本的構成を示す図、第２図は磁
気テープ２の構成を示す平面図、第３図は検波回
路２３の動作を説明するためのタイミングチヤー
ト、第４図はテープ位置判断回路２０の動作を説
明するためのタイミングチヤート、第５図は磁気
テープ記録再生装置１の動作を説明するためのフ
ローチヤートである。
１……磁気テープ記録再生装置、２……磁気テ
ープ、１２……ピンチローラ、１３……キヤプス
タン、１４，１５……磁気ヘツド、１７……回転
ドラム、１８……テープエンド検出部、１９……
反射部、２０……テープ位置判断回路、２１……
制御回路、２３……検波回路、２５……信号発生
回路、３２……記録部分、３３，３５……境界部
分、３４……クリーニング部分、３６……検査部
分。
FIG. 1 is a diagram showing the basic configuration of a magnetic tape recording/reproducing apparatus 1 which is an embodiment of the present invention, FIG. 2 is a plan view showing the configuration of the magnetic tape 2, and FIG. 3 is a diagram showing the operation of the detection circuit 23. FIG. 4 is a timing chart for explaining the operation of the tape position determination circuit 20, and FIG. 5 is a flow chart for explaining the operation of the magnetic tape recording/reproducing apparatus 1. DESCRIPTION OF SYMBOLS 1... Magnetic tape recording/reproducing device, 2... Magnetic tape, 12... Pinch roller, 13... Capstan, 14, 15... Magnetic head, 17... Rotating drum, 18... Tape end detection section, 19... …
Reflector, 20... Tape position judgment circuit, 21...
Control circuit, 23...Detection circuit, 25...Signal generation circuit, 32...Recording section, 33, 35...Boundary section, 34...Cleaning section, 36...Inspection section.
Claims (1)
表面に磁気ヘツドを摺接させて再生動作を行う磁
気テープ再生装置において、 前記磁気テープには、長手方向両端部の少なく
とも一方端部付近に磁気ヘツド表面をクリーニン
グするクリーニングテープが設けられ、該クリー
ニングテープの前記走行方向上流側には磁気ヘツ
ドのクリーニング状態を検査するための検査領域
が設けられ、 前記クリーニングテープを検知するクリーニン
グテープ検知手段と、 前記検査領域を検知する検査領域検知手段と、 前記磁気ヘツドの出力に基づいて、再生信号レ
ベルが予め定める基準レベル以下になつたことを
検出する検出手段とを含み、 磁気テープの再生中に、再生信号レベルが前記
予め定める基準レベル以下になると、磁気テープ
を前記一方端部側に走行させ、クリーニングテー
プが検知されると再生動作を行い、その後、前記
検査領域が検知されると磁気ヘツドのクリーニン
グ状態を検査することを特徴とする磁気テープ再
生装置。[Claims for Utility Model Registration] In a magnetic tape playback device that runs a magnetic tape in the longitudinal direction and performs a playback operation by bringing a magnetic head into sliding contact with the surface of the magnetic tape, the magnetic tape includes at least one of the ends of the magnetic tape in the longitudinal direction. A cleaning tape for cleaning the surface of the magnetic head is provided near one end, and an inspection area for testing the cleaning state of the magnetic head is provided upstream of the cleaning tape in the running direction to detect the cleaning tape. cleaning tape detection means; inspection area detection means for detecting the inspection area; and detection means for detecting that the playback signal level has fallen below a predetermined reference level based on the output of the magnetic head; During playback of the tape, when the playback signal level falls below the predetermined reference level, the magnetic tape is run toward the one end, and when the cleaning tape is detected, a playback operation is performed, and then the inspection area is detected. 1. A magnetic tape playback device characterized in that the cleaning state of a magnetic head is inspected when the magnetic head is cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5851190U JPH0420607U (en) | 1990-06-01 | 1990-06-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5851190U JPH0420607U (en) | 1990-06-01 | 1990-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0420607U true JPH0420607U (en) | 1992-02-20 |
Family
ID=31584187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5851190U Pending JPH0420607U (en) | 1990-06-01 | 1990-06-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0420607U (en) |
-
1990
- 1990-06-01 JP JP5851190U patent/JPH0420607U/ja active Pending
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