JPS6435536U - - Google Patents
Info
- Publication number
- JPS6435536U JPS6435536U JP12828987U JP12828987U JPS6435536U JP S6435536 U JPS6435536 U JP S6435536U JP 12828987 U JP12828987 U JP 12828987U JP 12828987 U JP12828987 U JP 12828987U JP S6435536 U JPS6435536 U JP S6435536U
- Authority
- JP
- Japan
- Prior art keywords
- track
- scanning
- head
- areas
- control device
- 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 4
- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
第１図、第２図は、それぞれ本考案の一実施例
を示すトラツキング誤差検出回路、及びテープガ
イド制御機構である。第３図〜第５図は、それぞ
れ本考案の説明に供する図である。
１……再生信号入力端子、２……ヘツド切換え
信号入力端子、３……ＡＴＦ誤差信号出力端子、
４……傾き誤差信号出力端子、５……ＲＦアンプ
、６……ローパスフイルタ、７……エンベロープ
検波回路、８〜１１……サンプルホールド回路、
１２……イコライザー、１３……シンク信号検出
器、１４……制御装置、１５，１６，１８……引
算器、１７……加算器、２４′，２５′……ガイ
ドローラ、２７，２８……ガイドローラ駆動機構
、２９……駆動回路、３０……傾き誤差信号入力
端子。
FIGS. 1 and 2 show a tracking error detection circuit and a tape guide control mechanism, respectively, showing an embodiment of the present invention. 3 to 5 are diagrams for explaining the present invention, respectively. 1...Reproduction signal input terminal, 2...Head switching signal input terminal, 3...ATF error signal output terminal,
4...Slope error signal output terminal, 5...RF amplifier, 6...Low pass filter, 7...Envelope detection circuit, 8-11...Sample hold circuit,
12... Equalizer, 13... Sink signal detector, 14... Control device, 15, 16, 18... Subtractor, 17... Adder, 24', 25'... Guide roller, 27, 28... ...Guide roller drive mechanism, 29...Drive circuit, 30...Tilt error signal input terminal.
補正 昭６３．３．２
実用新案登録請求の範囲を次のように補正する
。Amendment March 2, 1983 The scope of claims for utility model registration is amended as follows.
【実用新案登録請求の範囲】
ヘリカルスキヤン方式により、磁気テープの各
トラツクの両端部近傍の第１と第２のエリアに記
録されるパイロツト信号に基づいて再生時のトラ
ツキングを行なうトラツキング制御装置であり、
ヘツドが走査する走査トラツクに隣接する一方
のトラツクから再生される前記パイロツト信号の
第１の再生レベル及び／又は前記走査トラツクに
隣接する他方のトラツクから再生される前記パイ
ロツト信号の第２の再生レベルを検出し、前記第
１と第２の各エリアで検出される前記第１及び／
又は第２の再生レベルの差情報に基づく傾き誤差
情報を形成する傾き誤差検出手段と、
前記走査トラツクに対する前記ヘツドの走査方
向を相対的に可変する誤差角補正手段とからなり
、
前記誤差角補正手段が前記傾き誤差情報に基づ
いて前記走査トラツク方向と前記ヘツドの走査方
向が一致すべく動作するように構成したことを特
徴とするトラツキング制御装置。[Claims for Utility Model Registration] A tracking control device that performs tracking during playback based on pilot signals recorded in first and second areas near both ends of each track of a magnetic tape using a helical scan method. , a first reproduction level of the pilot signal reproduced from one track adjacent to the scanning track scanned by the head and/or a second reproduction level of the pilot signal reproduced from the other track adjacent to the scanning track; detecting the level of the first and/or detected areas in each of the first and second areas;
or tilt error detection means for forming tilt error information based on second reproduction level difference information; and error angle correction means for relatively varying the scanning direction of the head with respect to the scanning track, and the error angle correction means A tracking control device characterized in that the means is configured to operate so that the scanning track direction and the scanning direction of the head coincide based on the tilt error information.
Claims (1)
トラツクの両端部近傍の第１と第２のエリアに記
録されるパイロツト信号に基づいて再生時のトラ
ツキングを行なうトラツキング制御装置であり、 ヘツドが走査する走査トラツクに隣接する一方
のトラツクから再生される前記パイロツト信号の
第１の再生レベルと、前記走査トラツクに隣接す
る他方のトラツクから再生される前記パイロツト
信号の第２の再生レベルをそれぞれ検出し、前記
第１と第２の各エリアで検出される前記第１及び
／又は第２の再生レベルの差情報に基づく傾き誤
差情報を形成する傾き誤差検出手段と、 前記走査トラツクに対する前記ヘツドの走査方
向を相対的に可変する誤差角補正手段とからなり
、 前記誤差角補正手段が前記傾き誤差情報に基づ
いて前記走査トラツク方向と前記ヘツドの走査方
向が一致すべく動作するように構成したことを特
徴とするトラツキング制御装置。[Claims for Utility Model Registration] A tracking control device that performs tracking during playback based on pilot signals recorded in first and second areas near both ends of each track of a magnetic tape using a helical scan method. , a first reproduction level of the pilot signal reproduced from one track adjacent to the scanning track scanned by the head, and a second reproduction level of the pilot signal reproduced from the other track adjacent to the scanning track. tilt error detection means for detecting the respective areas and forming tilt error information based on difference information between the first and/or second playback levels detected in each of the first and second areas; an error angle correction means for relatively varying the scanning direction of the head, and the error angle correction means operates so that the scanning track direction and the scanning direction of the head match based on the tilt error information. A tracking control device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987128289U JPH0749648Y2 (en) | 1987-08-24 | 1987-08-24 | Tracking controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987128289U JPH0749648Y2 (en) | 1987-08-24 | 1987-08-24 | Tracking controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6435536U true JPS6435536U (en) | 1989-03-03 |
| JPH0749648Y2 JPH0749648Y2 (en) | 1995-11-13 |
Family
ID=31381486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987128289U Expired - Lifetime JPH0749648Y2 (en) | 1987-08-24 | 1987-08-24 | Tracking controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749648Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233505A (en) * | 1975-09-08 | 1977-03-14 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic tape recording reproduction device |
-
1987
- 1987-08-24 JP JP1987128289U patent/JPH0749648Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233505A (en) * | 1975-09-08 | 1977-03-14 | Nippon Telegr & Teleph Corp <Ntt> | Magnetic tape recording reproduction device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0749648Y2 (en) | 1995-11-13 |
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