JPH0412111U - - Google Patents
Info
- Publication number
- JPH0412111U JPH0412111U JP4866190U JP4866190U JPH0412111U JP H0412111 U JPH0412111 U JP H0412111U JP 4866190 U JP4866190 U JP 4866190U JP 4866190 U JP4866190 U JP 4866190U JP H0412111 U JPH0412111 U JP H0412111U
- Authority
- JP
- Japan
- Prior art keywords
- atf
- dat
- frequency
- oct
- reproduced
- 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
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
第１図は、この考案によるＤＡＴのＡＴＦ回路
の実施例の構成を示すブロツク図、第２図は第１
図の低域通過フイルタの特性図、第３図は従来の
ＤＡＴのＡＴＦ回路の構成を示すブロツク図、第
４図は第３図の低域通過フイルタの特性図である
。
１ａ，１ｂ，１０ａ，１０ｂ……磁気ヘツド、
２，２０……プリアンプ、３，３０……低域通過
フイルタ（ＬＰＦ）、４，４０……ＡＴＦ用シン
ク検出回路、５，５０……タイミングジエネレー
タ、６，６０……ゲインコントロールアンプ、７
，７０……ＡＴＦエラー生成回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of the ATF circuit of the DAT according to this invention, and FIG.
FIG. 3 is a block diagram showing the configuration of a conventional DAT ATF circuit, and FIG. 4 is a characteristic diagram of the low-pass filter shown in FIG. 1a, 1b, 10a, 10b...magnetic head,
2, 20... Preamplifier, 3, 30... Low pass filter (LPF), 4, 40... ATF sink detection circuit, 5, 50... Timing generator, 6, 60... Gain control amplifier, 7
, 70...ATF error generation circuit.
Claims (1)
トラツキング用パイロツト信号に基づいてＡＴＦ
用エラー信号を生成するＤＡＴのＡＴＦ回路にお
いて、 前記トラツキング用パイロツト信号に対して、
−６ｄＢ／ｏｃｔ傾斜をもち、前記複数の再生速
度の各再生速度でのパイロツト信号の周波数が前
記−６ｄＢ／ｏｃｔの傾斜部にあるように設定さ
れた周波数特性を有する周波数処理を施す周波数
処理手段を備えて成ることを特徴とするＤＡＴの
ＡＴＦ回路。[Claims for Utility Model Registration] ATF that can be reproduced at multiple reproduction speeds and based on the reproduced tracking pilot signal.
In the ATF circuit of the DAT that generates the error signal for tracking,
Frequency processing means for performing frequency processing having a frequency characteristic that has a slope of -6 dB/oct and is set such that the frequency of the pilot signal at each of the plurality of playback speeds is within the slope section of -6 dB/oct. A DAT ATF circuit characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4866190U JPH0412111U (en) | 1990-05-11 | 1990-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4866190U JPH0412111U (en) | 1990-05-11 | 1990-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0412111U true JPH0412111U (en) | 1992-01-31 |
Family
ID=31565674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4866190U Pending JPH0412111U (en) | 1990-05-11 | 1990-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412111U (en) |
-
1990
- 1990-05-11 JP JP4866190U patent/JPH0412111U/ja active Pending
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