JPS6245736U - - Google Patents
Info
- Publication number
- JPS6245736U JPS6245736U JP13711385U JP13711385U JPS6245736U JP S6245736 U JPS6245736 U JP S6245736U JP 13711385 U JP13711385 U JP 13711385U JP 13711385 U JP13711385 U JP 13711385U JP S6245736 U JPS6245736 U JP S6245736U
- Authority
- JP
- Japan
- Prior art keywords
- detection means
- magnetic head
- time interval
- rotating magnetic
- recording
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Digital Magnetic Recording (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Description
図面は本考案の磁気記録再生装置の一実施例を
示し、第1図は概略ブロツク図、第2図は他の実
施例の概略ブロツク図、第3図は磁気テープの平
面図、第4図ないし第8図は磁気テープの速度と
回転磁気ヘツドの回転速度との相対関係を示すベ
クトル図、第9図はデータブロツクを模式的に表
した図である。
1……磁気テープ、2……記録トラツク、10
……ヘツド、11……ヘツドアンプ、12……波
形整形回路、13……復調回路、14……PLL
回路、15……同期検出回路、16……1ブロツ
ク長検出回路、17……比較回路、18……サー
ボ回路、19……回転ドラム、20……リールサ
ーボ回路、21……リールモータ。
The drawings show one embodiment of the magnetic recording and reproducing apparatus of the present invention, in which FIG. 1 is a schematic block diagram, FIG. 2 is a schematic block diagram of another embodiment, FIG. 3 is a plan view of a magnetic tape, and FIG. 4 8 to 8 are vector diagrams showing the relative relationship between the speed of the magnetic tape and the rotational speed of the rotating magnetic head, and FIG. 9 is a diagram schematically showing a data block. 1... Magnetic tape, 2... Recording track, 10
...head, 11 ... head amplifier, 12 ... waveform shaping circuit, 13 ... demodulation circuit, 14 ... PLL
Circuit, 15...Synchronization detection circuit, 16...1 block length detection circuit, 17...Comparison circuit, 18...Servo circuit, 19...Rotating drum, 20...Reel servo circuit, 21...Reel motor.
Claims (1)
記録し再生する磁気記録再生装置において、 回転磁気ヘツドの回転数を制御する回転制御手
段と、 磁気テープの走行速度を制御する速度制御手段
と、 前記回転磁気ヘツドが前記磁気テープ上を走査
したときに、回転磁気ヘツドにより再生された信
号の中から予め決められた時間間隔で記録された
特定の記録信号を読み取り、この特定の記録信号
の時間間隔を検出する検出手段と、 この検出手段によつて検出された時間間隔と前
記特定の記録信号を前記記録テープに記録したと
きの時間間隔とを比較し、両時間間隔の誤差を検
出する比較検出手段とを備え、前記比較検出手段
によつて検出された時間間隔の誤差を零にするよ
うに前記回転磁気ヘツドの回転数および前記磁気
テープの走行速度が制御されることを特徴とする
磁気記録再生装置。[Scope of Claim for Utility Model Registration] A magnetic recording and reproducing device that records and reproduces information on a magnetic tape using a rotating magnetic head, comprising: a rotation control means for controlling the number of rotations of the rotating magnetic head; and a rotation control means for controlling the running speed of the magnetic tape. a speed control means for controlling, when the rotating magnetic head scans the magnetic tape, reading specific recording signals recorded at predetermined time intervals from among the signals reproduced by the rotating magnetic head; A detection means for detecting the time interval of this specific recording signal, and a detection means that compares the time interval detected by this detection means with the time interval when the specific recording signal was recorded on the recording tape, and and a comparison detection means for detecting an error in the interval, and the rotation speed of the rotating magnetic head and the running speed of the magnetic tape are controlled so as to make the error in the time interval detected by the comparison detection means zero. A magnetic recording/reproducing device characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985137113U JPH0614309Y2 (en) | 1985-09-06 | 1985-09-06 | Magnetic recording / reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985137113U JPH0614309Y2 (en) | 1985-09-06 | 1985-09-06 | Magnetic recording / reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6245736U true JPS6245736U (en) | 1987-03-19 |
JPH0614309Y2 JPH0614309Y2 (en) | 1994-04-13 |
Family
ID=31040859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985137113U Expired - Lifetime JPH0614309Y2 (en) | 1985-09-06 | 1985-09-06 | Magnetic recording / reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0614309Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5575862U (en) * | 1978-11-20 | 1980-05-24 |
-
1985
- 1985-09-06 JP JP1985137113U patent/JPH0614309Y2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5575862U (en) * | 1978-11-20 | 1980-05-24 |
Also Published As
Publication number | Publication date |
---|---|
JPH0614309Y2 (en) | 1994-04-13 |
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