JPS5683874A - Reproducing device - Google Patents

Reproducing device

Info

Publication number
JPS5683874A
JPS5683874A JP16177279A JP16177279A JPS5683874A JP S5683874 A JPS5683874 A JP S5683874A JP 16177279 A JP16177279 A JP 16177279A JP 16177279 A JP16177279 A JP 16177279A JP S5683874 A JPS5683874 A JP S5683874A
Authority
JP
Japan
Prior art keywords
tracks
light beam
scanning
detected
track
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
JP16177279A
Other languages
Japanese (ja)
Other versions
JPS6214910B2 (en
Inventor
Noboru Wakami
Masahiro Deguchi
Mitsuro Moriya
Yasuhiro Goto
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 JP16177279A priority Critical patent/JPS5683874A/en
Publication of JPS5683874A publication Critical patent/JPS5683874A/en
Publication of JPS6214910B2 publication Critical patent/JPS6214910B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To make stable retrieval possible, by scanning the light beam in the direction vertical to tracks and by controlling the scanning beam according to a desired number of tracks.
CONSTITUTION: Light beam 2 is caused to scan in the direction vertical to tracks of recording carrier 7 by reflective mirror 5, and it is detected by 20 that the light beam went across tracks in this scanning, and the light beam is moved by a desired number of tracks by 15. It is detected by track deciding means 25 that the tracks by 15. It is detected by track deciding means 25 that the light beam is not moved, and in this case, scanning of the light beam is performed for the number of tracks larger than the desired that. As the result, stable retrieval is possible independently of track pitch variance, eccentricity, and so on even if drop-out and so on exist between tracks.
COPYRIGHT: (C)1981,JPO&Japio
JP16177279A 1979-12-12 1979-12-12 Reproducing device Granted JPS5683874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16177279A JPS5683874A (en) 1979-12-12 1979-12-12 Reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16177279A JPS5683874A (en) 1979-12-12 1979-12-12 Reproducing device

Publications (2)

Publication Number Publication Date
JPS5683874A true JPS5683874A (en) 1981-07-08
JPS6214910B2 JPS6214910B2 (en) 1987-04-04

Family

ID=15741602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16177279A Granted JPS5683874A (en) 1979-12-12 1979-12-12 Reproducing device

Country Status (1)

Country Link
JP (1) JPS5683874A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960768A (en) * 1982-09-30 1984-04-06 Toshiba Corp Disk record reproducer
US4539664A (en) * 1978-08-25 1985-09-03 Matsushita Electric Industrial Co., Ltd. Control system for optical information signal reproduction device
US4811316A (en) * 1984-01-10 1989-03-07 Canon Kabushiki Kaisha Apparatus for seeking a track of an optical information carrier in which a loss of detection signal is compensated for

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539664A (en) * 1978-08-25 1985-09-03 Matsushita Electric Industrial Co., Ltd. Control system for optical information signal reproduction device
JPS5960768A (en) * 1982-09-30 1984-04-06 Toshiba Corp Disk record reproducer
JPH0437505B2 (en) * 1982-09-30 1992-06-19 Tokyo Shibaura Electric Co
US4811316A (en) * 1984-01-10 1989-03-07 Canon Kabushiki Kaisha Apparatus for seeking a track of an optical information carrier in which a loss of detection signal is compensated for

Also Published As

Publication number Publication date
JPS6214910B2 (en) 1987-04-04

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