JPS60183922U - Servo circuit for optical disks - Google Patents

Servo circuit for optical disks

Info

Publication number
JPS60183922U
JPS60183922U JP7134484U JP7134484U JPS60183922U JP S60183922 U JPS60183922 U JP S60183922U JP 7134484 U JP7134484 U JP 7134484U JP 7134484 U JP7134484 U JP 7134484U JP S60183922 U JPS60183922 U JP S60183922U
Authority
JP
Japan
Prior art keywords
servo circuit
optical disks
optical disk
servo
detection means
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
Application number
JP7134484U
Other languages
Japanese (ja)
Inventor
英昭 林
Original Assignee
日本コロムビア株式会社
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 日本コロムビア株式会社 filed Critical 日本コロムビア株式会社
Priority to JP7134484U priority Critical patent/JPS60183922U/en
Publication of JPS60183922U publication Critical patent/JPS60183922U/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (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図は本考案の光デイスク用サーボ回路図、第２図は
第１図の動作説明波形図、第３図は従来の光学系統図、
第４図は第３図上のセンサーのビーム形状を示す図、第
５図は従来の光デイスク用サーボ回路の系統図、第６図
は第５図の説明図である。 １・・・・・・レーザ源、６・・・・・・記録媒体、１
１，１２．１３・・・・・・第１〜第３の演算増巾器、
１８，１９・・・・・・ピークホールド回路。 川　　　・・／ ｌ　（１へｃ円す ヒ。 α（１２へ２Fig. 1 is a servo circuit diagram for an optical disk of the present invention, Fig. 2 is a waveform diagram explaining the operation of Fig. 1, and Fig. 3 is a conventional optical system diagram.
4 is a diagram showing the beam shape of the sensor shown in FIG. 3, FIG. 5 is a system diagram of a conventional servo circuit for an optical disk, and FIG. 6 is an explanatory diagram of FIG. 5. 1... Laser source, 6... Recording medium, 1
1, 12, 13...first to third operational amplifiers,
18, 19...Peak hold circuit. River... / l (1 to c circle hi. α (12 to 2

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ゛光ディスクよりの反射光を分割された光検出手段で取
り出し該検出手段出力の差又は比等をサーボエラー信号
としてサーボを行なう光デイスクサーボ回路において、
上記検出手段よりの信号のピーク値を取り出して前エラ
ー信号とするよろにしたことを特徴とする光デイスク用
サーボ回路。゛In an optical disk servo circuit that extracts reflected light from an optical disk using divided light detection means and performs servo using the difference or ratio of outputs of the detection means as a servo error signal,
A servo circuit for an optical disk, characterized in that the peak value of the signal from the detection means is extracted and used as a pre-error signal.
JP7134484U 1984-05-16 1984-05-16 Servo circuit for optical disks Pending JPS60183922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7134484U JPS60183922U (en) 1984-05-16 1984-05-16 Servo circuit for optical disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7134484U JPS60183922U (en) 1984-05-16 1984-05-16 Servo circuit for optical disks

Publications (1)

Publication Number Publication Date
JPS60183922U true JPS60183922U (en) 1985-12-06

Family

ID=30608753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7134484U Pending JPS60183922U (en) 1984-05-16 1984-05-16 Servo circuit for optical disks

Country Status (1)

Country Link
JP (1) JPS60183922U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58185045A (en) * 1982-04-24 1983-10-28 Sony Corp Disk reproducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58185045A (en) * 1982-04-24 1983-10-28 Sony Corp Disk reproducer

Similar Documents

Publication Publication Date Title
JPS63102031U (en)
JPS60120522U (en) Optical recording information reading device
JPS60183922U (en) Servo circuit for optical disks
JPS6128112U (en) Optical disk recording/playback device
JPS5843679U (en) Tracking servo device
JPS58163030U (en) information reproducing device
JPS59157226U (en) Recording beam limiting circuit
JPS60169723U (en) optical disc player
JPS60132620U (en) Beam position adjustment device for optical recording and reproducing equipment
JPS63181157U (en)
JPS60183918U (en) disk player
JPS5971472U (en) Information reading position control signal generation circuit
JPS6031728U (en) Tracking servo device
JPS59153630U (en) optical playback device
JPS5875342U (en) Optical information reproducing device
JPS5960736U (en) light detector
JPS5849330U (en) Focus control signal detection circuit for information reproducing device
JPS58159685U (en) Tracking servo control device for recorded information reading device
JPH0314720U (en)
JPS60194721U (en) magneto-optical playback head
JPS59164936U (en) Focus error detection device in optical recording/playback equipment
JPS5890537U (en) Optical information reproducing device using laser light source
JPS63173719U (en)
JPS60192122U (en) Tracking control circuit for optical head device
JPS59180226U (en) optical playback device