JPS61206933A - 光学的情報再生装置 - Google Patents

光学的情報再生装置

Info

Publication number
JPS61206933A
JPS61206933A JP60047925A JP4792585A JPS61206933A JP S61206933 A JPS61206933 A JP S61206933A JP 60047925 A JP60047925 A JP 60047925A JP 4792585 A JP4792585 A JP 4792585A JP S61206933 A JPS61206933 A JP S61206933A
Authority
JP
Japan
Prior art keywords
signal
state
phase difference
validity
pulse
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
JP60047925A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0580053B2 (enrdf_load_stackoverflow
Inventor
Shinichi Tanaka
伸一 田中
Haruo Isaka
治夫 井阪
Yuji Tanaka
裕治 田中
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP60047925A priority Critical patent/JPS61206933A/ja
Priority to US06/837,287 priority patent/US4740940A/en
Priority to KR8601708A priority patent/KR900002997B1/ko
Priority to EP86301731A priority patent/EP0197666B1/en
Priority to DE8686301731T priority patent/DE3675056D1/de
Publication of JPS61206933A publication Critical patent/JPS61206933A/ja
Publication of JPH0580053B2 publication Critical patent/JPH0580053B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP60047925A 1985-03-11 1985-03-11 光学的情報再生装置 Granted JPS61206933A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP60047925A JPS61206933A (ja) 1985-03-11 1985-03-11 光学的情報再生装置
US06/837,287 US4740940A (en) 1985-03-11 1986-03-06 Optical information read apparatus
KR8601708A KR900002997B1 (en) 1985-03-11 1986-03-11 Optical information player
EP86301731A EP0197666B1 (en) 1985-03-11 1986-03-11 Optical information-reproducing apparatus
DE8686301731T DE3675056D1 (de) 1985-03-11 1986-03-11 Optisches informationswiedergabegeraet.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60047925A JPS61206933A (ja) 1985-03-11 1985-03-11 光学的情報再生装置

Publications (2)

Publication Number Publication Date
JPS61206933A true JPS61206933A (ja) 1986-09-13
JPH0580053B2 JPH0580053B2 (enrdf_load_stackoverflow) 1993-11-05

Family

ID=12788947

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60047925A Granted JPS61206933A (ja) 1985-03-11 1985-03-11 光学的情報再生装置

Country Status (1)

Country Link
JP (1) JPS61206933A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010027203A (ja) * 2009-11-02 2010-02-04 Panasonic Corp オフトラック検出装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010027203A (ja) * 2009-11-02 2010-02-04 Panasonic Corp オフトラック検出装置

Also Published As

Publication number Publication date
JPH0580053B2 (enrdf_load_stackoverflow) 1993-11-05

Similar Documents

Publication Publication Date Title
US4137504A (en) Digital filter
JPH01105362A (ja) 記憶情報読出回路
US5057946A (en) Magnetic disk drive apparatus
JPS61206933A (ja) 光学的情報再生装置
JP2960200B2 (ja) ピーク検出回路
US5375110A (en) Optical data reading apparatus having means for detecting data degradation resulting from dust coverng the optical pick up head
KR20000076213A (ko) 피크 검출장치
JPH03157825A (ja) ２値化回路
KR940701577A (ko) 광학정보 매체용 에라형의 신호방법 및 장치
JPH01307972A (ja) パルス処理回路
JPH0580054B2 (enrdf_load_stackoverflow)
JP2875618B2 (ja) 光ディスクプレーヤのミラー部検出回路
KR940006925Y1 (ko) 하드디스크 드라이브의 펄스검출 제어회로
JPH0722768Y2 (ja) ドロツプアウト検出回路
JPH0256734A (ja) 光学的再生装置
JPH05101407A (ja) 光情報記録媒体のトラツク横断検出信号形成回路
JPS63244318A (ja) 光デイスク再生装置
JPS61233470A (ja) 光情報記録再生装置
JPH02152018A (ja) トラック通過信号検出装置
JPH0449504A (ja) 磁気記憶装置のピーク検出回路
JPH05258315A (ja) 光ディスク装置
JPS62298005A (ja) 磁気デ−タ読取装置
JPS634462A (ja) 記憶情報読出回路
JPS61289535A (ja) 情報記録担体の欠陥検出装置
JPS62195733A (ja) トラツク検出回路

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term