JPS6140081U - spindle servo device - Google Patents

spindle servo device

Info

Publication number
JPS6140081U
JPS6140081U JP12421284U JP12421284U JPS6140081U JP S6140081 U JPS6140081 U JP S6140081U JP 12421284 U JP12421284 U JP 12421284U JP 12421284 U JP12421284 U JP 12421284U JP S6140081 U JPS6140081 U JP S6140081U
Authority
JP
Japan
Prior art keywords
drive signal
horizontal drive
servo
circuit
detected
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
Application number
JP12421284U
Other languages
Japanese (ja)
Other versions
JPH0438630Y2 (en
Inventor
和浩 北
Original Assignee
ソニー株式会社
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 ソニー株式会社 filed Critical ソニー株式会社
Priority to JP12421284U priority Critical patent/JPS6140081U/en
Publication of JPS6140081U publication Critical patent/JPS6140081U/en
Application granted granted Critical
Publication of JPH0438630Y2 publication Critical patent/JPH0438630Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Rotational Drive Of Disk (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案によるスピンドルサーボ装置を示すブロ
ック図、第２図はそのディスク２上に記録される同期信
号マークを示す略線図である。 １・・・カメラ、２・・・ディスク、３，４・・・検出
器、５，７．１１・・・周波数逓降回路、６・・・サー
ボ回路、１２・・・スピンドルモータ。FIG. 1 is a block diagram showing a spindle servo device according to the present invention, and FIG. 2 is a schematic diagram showing synchronization signal marks recorded on a disk 2 thereof. DESCRIPTION OF SYMBOLS 1... Camera, 2... Disk, 3, 4... Detector, 5, 7.11... Frequency down-down circuit, 6... Servo circuit, 12... Spindle motor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] カメラの映像信号を第１の周波数逓降回路に与えてその
出力端に記録水平駆動信号を得てサーボ回路に入力し、
ディスクから検出した検出水平駆動信号を第２の周波数
逓降回路に与えてその出力端に再生水平駆動信号を得て
上記サーボ回路に入力し、上記サーボ回路は上記記録水
平駆動信号及び上記再生水平駆動信号の位相比較結果に
基づいて上記ディスクを駆動するスピンドルモータをサ
ーボ制御し、上記第１及び第２の周波数逓降回路は、上
記映像信号の走査線数及び上記検出水平駆動信号の走査
線数の公約弊に相当する基準周波数をもつ上記記録水平
駆動信号及び上記再生水平駆動信号を送出するように、
逓降係数が選定されていることを特徴とするスピンドル
サーボ装置。The video signal of the camera is applied to a first frequency down-converter circuit, and a recording horizontal drive signal is obtained at its output terminal, which is input to a servo circuit.
The detected horizontal drive signal detected from the disk is applied to a second frequency down-down circuit to obtain a reproduction horizontal drive signal at its output terminal and input it to the servo circuit, and the servo circuit receives the recording horizontal drive signal and the reproduction horizontal The spindle motor that drives the disk is servo-controlled based on the result of phase comparison of the drive signals, and the first and second frequency step-down circuits control the number of scanning lines of the video signal and the scanning line of the detected horizontal drive signal. transmitting the recording horizontal drive signal and the reproduction horizontal drive signal having a reference frequency corresponding to a common convention of numbers;
A spindle servo device characterized in that a step-down coefficient is selected.
JP12421284U 1984-08-13 1984-08-13 spindle servo device Granted JPS6140081U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12421284U JPS6140081U (en) 1984-08-13 1984-08-13 spindle servo device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12421284U JPS6140081U (en) 1984-08-13 1984-08-13 spindle servo device

Publications (2)

Publication Number Publication Date
JPS6140081U true JPS6140081U (en) 1986-03-13
JPH0438630Y2 JPH0438630Y2 (en) 1992-09-09

Family

ID=30682938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12421284U Granted JPS6140081U (en) 1984-08-13 1984-08-13 spindle servo device

Country Status (1)

Country Link
JP (1) JPS6140081U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS645404A (en) * 1987-06-30 1989-01-10 Isao Minagawa Ridge regulator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57162977A (en) * 1981-03-31 1982-10-06 Fujitsu Ltd Rotating speed control circuit for motor
JPS57162890A (en) * 1981-03-31 1982-10-06 Teac Co Information signal recorder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57162977A (en) * 1981-03-31 1982-10-06 Fujitsu Ltd Rotating speed control circuit for motor
JPS57162890A (en) * 1981-03-31 1982-10-06 Teac Co Information signal recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS645404A (en) * 1987-06-30 1989-01-10 Isao Minagawa Ridge regulator

Also Published As

Publication number Publication date
JPH0438630Y2 (en) 1992-09-09

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