JPS6457428A - Tracking control circuit for optical disk reproducing device - Google Patents

Tracking control circuit for optical disk reproducing device

Info

Publication number
JPS6457428A
JPS6457428A JP21465987A JP21465987A JPS6457428A JP S6457428 A JPS6457428 A JP S6457428A JP 21465987 A JP21465987 A JP 21465987A JP 21465987 A JP21465987 A JP 21465987A JP S6457428 A JPS6457428 A JP S6457428A
Authority
JP
Japan
Prior art keywords
sub
beams
delaying
detecting
objective lens
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
JP21465987A
Other languages
English (en)
Inventor
Kazuhiro Tamada
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.)
Yamaha Corp
Original Assignee
Yamaha 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 Yamaha Corp filed Critical Yamaha Corp
Priority to JP21465987A priority Critical patent/JPS6457428A/ja
Publication of JPS6457428A publication Critical patent/JPS6457428A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP21465987A 1987-08-28 1987-08-28 Tracking control circuit for optical disk reproducing device Pending JPS6457428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21465987A JPS6457428A (en) 1987-08-28 1987-08-28 Tracking control circuit for optical disk reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21465987A JPS6457428A (en) 1987-08-28 1987-08-28 Tracking control circuit for optical disk reproducing device

Publications (1)

Publication Number Publication Date
JPS6457428A true JPS6457428A (en) 1989-03-03

Family

ID=16659432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21465987A Pending JPS6457428A (en) 1987-08-28 1987-08-28 Tracking control circuit for optical disk reproducing device

Country Status (1)

Country Link
JP (1) JPS6457428A (ja)

Similar Documents

Publication Publication Date Title
EP0326354A3 (en) Apparatus for reading information out of an optical recording medium
JPS54128303A (en) Optical reproducing device of information recording medium disc
MY104267A (en) Optical pick-up devices
JPS6448248A (en) Optical pick-up device
JPS6448226A (en) Optical disk device
KR0121313Y1 (en) Optical pick-up device
US5146449A (en) Optical disc apparatus
MY114127A (en) An optical pickup apparatus for a magneto-optical recording medium
JPS6457428A (en) Tracking control circuit for optical disk reproducing device
EP0373607A3 (en) Focusing error detection circuit
JPS57172306A (en) Focus controller of optical recording system
JPS6427044A (en) Optical pickup
JPS6433779A (en) Track access device
JPS6462838A (en) Optical pick-up
EP0393885A2 (en) Optical recording and reproducing apparatus
JPS6433730A (en) Optical recording and reproducing device
JPS6437736A (en) Semiconductor laser driving device
JPS573234A (en) Optical recorder and reproducer
JP3528229B2 (ja) スポット位置制御方法及び装置
JPS57169933A (en) Optical disc reproducer
JPH04285732A (ja) 光ディスク用光学ヘッドの焦点ずれ検出方式
JPS6446233A (en) Recording and reproducing device for optical information
JPS5570942A (en) Tracking error detector
JPS63317931A (ja) 光学ヘッド
JPS6464127A (en) Optical head of optical axis correcting system