JPS62103855A - トラツキング装置 - Google Patents

トラツキング装置

Info

Publication number
JPS62103855A
JPS62103855A JP24509585A JP24509585A JPS62103855A JP S62103855 A JPS62103855 A JP S62103855A JP 24509585 A JP24509585 A JP 24509585A JP 24509585 A JP24509585 A JP 24509585A JP S62103855 A JPS62103855 A JP S62103855A
Authority
JP
Japan
Prior art keywords
tracking
error signal
main beam
spot
tracking 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
Application number
JP24509585A
Other languages
English (en)
Japanese (ja)
Other versions
JPH051534B2 (enrdf_load_stackoverflow
Inventor
Toshihisa Deguchi
出口　敏久
Tetsuya Inui
哲也 乾
Kenji Oota
賢司 太田
Shoshichi Kato
加藤　昭七
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP24509585A priority Critical patent/JPS62103855A/ja
Priority to DE8686113012T priority patent/DE3672426D1/de
Priority to EP88120868A priority patent/EP0324949B1/en
Priority to EP86113012A priority patent/EP0216341B1/en
Priority to DE8888120868T priority patent/DE3687274T2/de
Priority to CA000518829A priority patent/CA1284222C/en
Priority to US06/911,410 priority patent/US4787076A/en
Publication of JPS62103855A publication Critical patent/JPS62103855A/ja
Publication of JPH051534B2 publication Critical patent/JPH051534B2/ja
Priority to US08/289,565 priority patent/US5412630A/en
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP24509585A 1985-09-27 1985-10-30 トラツキング装置 Granted JPS62103855A (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP24509585A JPS62103855A (ja) 1985-10-30 1985-10-30 トラツキング装置
DE8686113012T DE3672426D1 (de) 1985-09-27 1986-09-20 Spurnachlaufverfahren fuer eine optische speicherplatte.
EP88120868A EP0324949B1 (en) 1985-09-27 1986-09-20 Tracking system for optical disc memory
EP86113012A EP0216341B1 (en) 1985-09-27 1986-09-20 Tracking system for optical disc memory
DE8888120868T DE3687274T2 (de) 1985-09-27 1986-09-20 Spurnachlaufverfahren fuer optische speicherplatte.
CA000518829A CA1284222C (en) 1985-09-27 1986-09-23 Tracking system for optical disc memory
US06/911,410 US4787076A (en) 1985-09-27 1986-09-25 Optical disc tracking system with switching of tracking error signals at boundary between track guide and track address
US08/289,565 US5412630A (en) 1985-09-27 1994-08-12 Tracking system for optical disc memory using tracking error signals from main beam and auxiliary beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24509585A JPS62103855A (ja) 1985-10-30 1985-10-30 トラツキング装置

Publications (2)

Publication Number Publication Date
JPS62103855A true JPS62103855A (ja) 1987-05-14
JPH051534B2 JPH051534B2 (enrdf_load_stackoverflow) 1993-01-08

Family

ID=17128530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24509585A Granted JPS62103855A (ja) 1985-09-27 1985-10-30 トラツキング装置

Country Status (1)

Country Link
JP (1) JPS62103855A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH051534B2 (enrdf_load_stackoverflow) 1993-01-08

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term