JPS60258737A - トラツキングサ−ボシステムの信号切換回路 - Google Patents

トラツキングサ−ボシステムの信号切換回路

Info

Publication number
JPS60258737A
JPS60258737A JP11570984A JP11570984A JPS60258737A JP S60258737 A JPS60258737 A JP S60258737A JP 11570984 A JP11570984 A JP 11570984A JP 11570984 A JP11570984 A JP 11570984A JP S60258737 A JPS60258737 A JP S60258737A
Authority
JP
Japan
Prior art keywords
signal
circuit
tracking error
error signal
level
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
JP11570984A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0475579B2 (enrdf_load_stackoverflow
Inventor
Takeshi Ito
武 伊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP11570984A priority Critical patent/JPS60258737A/ja
Publication of JPS60258737A publication Critical patent/JPS60258737A/ja
Publication of JPH0475579B2 publication Critical patent/JPH0475579B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/094—Methods and circuits for servo offset compensation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP11570984A 1984-06-06 1984-06-06 トラツキングサ−ボシステムの信号切換回路 Granted JPS60258737A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11570984A JPS60258737A (ja) 1984-06-06 1984-06-06 トラツキングサ−ボシステムの信号切換回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11570984A JPS60258737A (ja) 1984-06-06 1984-06-06 トラツキングサ−ボシステムの信号切換回路

Publications (2)

Publication Number Publication Date
JPS60258737A true JPS60258737A (ja) 1985-12-20
JPH0475579B2 JPH0475579B2 (enrdf_load_stackoverflow) 1992-12-01

Family

ID=14669255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11570984A Granted JPS60258737A (ja) 1984-06-06 1984-06-06 トラツキングサ−ボシステムの信号切換回路

Country Status (1)

Country Link
JP (1) JPS60258737A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0581683A (ja) * 1990-09-28 1993-04-02 Internatl Business Mach Corp <Ibm> 光デイスク・ドライブを動作させるための装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938973A (ja) * 1982-08-28 1984-03-03 Sony Corp デイスク再生装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938973A (ja) * 1982-08-28 1984-03-03 Sony Corp デイスク再生装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0581683A (ja) * 1990-09-28 1993-04-02 Internatl Business Mach Corp <Ibm> 光デイスク・ドライブを動作させるための装置

Also Published As

Publication number Publication date
JPH0475579B2 (enrdf_load_stackoverflow) 1992-12-01

Similar Documents

Publication Publication Date Title
US7164631B2 (en) Information recording apparatus
JPH0679420B2 (ja) トラツキングサ−ボ装置
JPS6220183A (ja) トラツク飛び越し制御回路
US5610887A (en) Error correcting apparatus with error corecting signal holding function
JPS60258737A (ja) トラツキングサ−ボシステムの信号切換回路
US5699334A (en) Control devices for optical disk based on driving signal saturation
US7092323B2 (en) Multi-stage focus control system and method
JPS60258775A (ja) デイスク再生装置のトラツキング制御回路
JPS60261036A (ja) トラツキングサ−ボシステムの信号切換回路
JPH0656660B2 (ja) 駆動電圧発生回路
JPS60258776A (ja) トラツキングエラ−信号のクロスエツジ検出回路
JP2565167B2 (ja) 光情報処理装置
JP2635918B2 (ja) 光学式ディスク再生装置
JPS6089836A (ja) デイスクレコ−ド再生装置のトラツキング制御回路
JPS629535A (ja) 光学式デイスク再生装置のフオ−カス制御回路
JPH0782650B2 (ja) 駆動電圧発生回路
JPH0997436A (ja) オフセット調整回路
JPH08235621A (ja) 光ディスク装置
JPH02168433A (ja) 光ディスクプレーヤのサーボ回路
JPS63251946A (ja) 光学式ピックアップ装置
JPH05159327A (ja) 光学式ディスクプレーヤにおけるフォーカスサーチ回路
JPS6080139A (ja) 光学式デイスクレコ−ド再生装置
KR19990001542A (ko) 전력 소모를 줄이기 위한 dvd 서보 아나로그 입력단 회로
JPH0473221B2 (enrdf_load_stackoverflow)
JPS6240671A (ja) デイスク再生装置のトラツク飛び越し制御回路