JPH03278336A - Position measuring method for pit of groove for tracking of optical disk - Google Patents

Position measuring method for pit of groove for tracking of optical disk

Info

Publication number
JPH03278336A
JPH03278336A JP7797490A JP7797490A JPH03278336A JP H03278336 A JPH03278336 A JP H03278336A JP 7797490 A JP7797490 A JP 7797490A JP 7797490 A JP7797490 A JP 7797490A JP H03278336 A JPH03278336 A JP H03278336A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
tracking
error detection
tracking error
groove
8a
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
JP7797490A
Inventor
Toshiyuki Kashiwagi
Original Assignee
Sony 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

Links

Abstract

PURPOSE: To detect positional deviation satisfactorily by measuring the positions of first and second pits for tracking error detection based on a measured result when tracking is applied to a groove and a land formed between tracks, respectively.
CONSTITUTION: The positions of the first and second pits 6a, 8a for tracking error detection are measured based on the measured result when the tracking is applied to the groove 4 formed between the tracks 1 and that when it is applied to the land 5 on the track 1. When the waveforms of the detection signals of the pits 6a-8a for tracking error detection by a photodetector are observed with an oscilloscope, the amplitude of the pits 6a, 8a for tracking error detection coincide with each other if the pit 7a for tracking error detection is formed in the track center 2 of the track 1. Thereby, the positional deviation in the first and second pits 6a, 8a for tracking error detection can be detected satisfactorily.
COPYRIGHT: (C)1991,JPO&Japio
JP7797490A 1990-03-27 1990-03-27 Position measuring method for pit of groove for tracking of optical disk Pending JPH03278336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7797490A JPH03278336A (en) 1990-03-27 1990-03-27 Position measuring method for pit of groove for tracking of optical disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7797490A JPH03278336A (en) 1990-03-27 1990-03-27 Position measuring method for pit of groove for tracking of optical disk

Publications (1)

Publication Number Publication Date
JPH03278336A true true JPH03278336A (en) 1991-12-10

Family

ID=13648873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7797490A Pending JPH03278336A (en) 1990-03-27 1990-03-27 Position measuring method for pit of groove for tracking of optical disk

Country Status (1)

Country Link
JP (1) JPH03278336A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727779A1 (en) * 1995-02-14 1996-08-21 Hitachi, Ltd. Optical recording method using land/groove recording and optcal recording medium therefor
US5898663A (en) * 1995-02-14 1999-04-27 Hitachi, Ltd. Optical recording medium with address information prepit for the same track at opposite boundaries of the same track
US7072287B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0727779A1 (en) * 1995-02-14 1996-08-21 Hitachi, Ltd. Optical recording method using land/groove recording and optcal recording medium therefor
US5805565A (en) * 1995-02-14 1998-09-08 Hitachi, Ltd. Optical disk having wobbled information shared between tracks
US5878008A (en) * 1995-02-14 1999-03-02 Hitachi, Ltd. Optical recording/reproducing method and apparatus for controlling irradiation position of an optical spot
US5898663A (en) * 1995-02-14 1999-04-27 Hitachi, Ltd. Optical recording medium with address information prepit for the same track at opposite boundaries of the same track
US5953310A (en) * 1995-02-14 1999-09-14 Hitachi, Ltd. Optical recording medium using land/groove recording
EP0999544A2 (en) * 1995-02-14 2000-05-10 Hitachi, Ltd. Optical disk, optical recording/reproducing apparatus and optical recording/reproducing method
US6064644A (en) * 1995-02-14 2000-05-16 Hitachi, Ltd. Optical recording medium having particular arrangement of prepits and manufacturing method thereof
EP0999544A3 (en) * 1995-02-14 2000-12-06 Hitachi, Ltd. Optical disk, optical recording/reproducing apparatus and optical recording/reproducing method
US6195316B1 (en) 1995-02-14 2001-02-27 Hitachi, Ltd. Optical recording medium using land/groove recording
US6262968B1 (en) 1995-02-14 2001-07-17 Hitachi, Ltd. Optical information processing apparatus
US6314075B2 (en) 1995-02-14 2001-11-06 Hitachi, Ltd. Optical recording/reproducing apparatus
US6370106B2 (en) 1995-02-14 2002-04-09 Hitachi, Ltd. Optical reproduction apparatus
US6392985B2 (en) 1995-02-14 2002-05-21 Hitachi, Ltd. Optical reproduction apparatus for reproducing information from optical recording medium having wobbled address pits
US6430146B1 (en) 1995-02-14 2002-08-06 Hitachi, Ltd. Optical reproducing method
US6430142B2 (en) 1995-02-14 2002-08-06 Hitachi, Ltd. Method for reproducing information from optical medium
US6483800B2 (en) 1995-02-14 2002-11-19 Hitachi, Ltd. Optical reproduction apparatus for reproducing information from an optical recording medium having wobbled pits
US6529470B2 (en) 1995-02-14 2003-03-04 Hitachi, Ltd. Optical recording medium with aligned prepit portion
US6532207B2 (en) 1995-02-14 2003-03-11 Hitachi, Ltd. Optical reproducing method
US6538981B2 (en) 1995-02-14 2003-03-25 Hitachi, Ltd. Optical reproduction apparatus
US6538980B2 (en) 1995-02-14 2003-03-25 Hitachi, Ltd. Optical disc
US6542456B2 (en) 1995-02-14 2003-04-01 Hitachi, Ltd. Optical reproducing method
US6542457B2 (en) 1995-02-14 2003-04-01 Hitachi, Ltd. Method for reproducing information from recording medium having grooves and lands as tracks divided into units
US6545973B2 (en) 1995-02-14 2003-04-08 Hitachi, Ltd. Optical reproduction apparatus
US6549510B2 (en) 1995-02-14 2003-04-15 Hitachi, Ltd. Optical recording medium having grooves and lands
US6552994B2 (en) 1995-02-14 2003-04-22 Hitachi, Ltd. Optical reproduction apparatus
US6580685B2 (en) 1995-02-14 2003-06-17 Hitachi, Ltd. Optical recording medium with aligned prepit portion
US6603730B2 (en) 1995-02-14 2003-08-05 Hitachi, Ltd. Optical reproducing method
US6611489B2 (en) 1995-02-14 2003-08-26 Hitachi, Ltd. Information reproducing method for an optical medium having grooves and lands
US6795390B2 (en) 1995-02-14 2004-09-21 Hitachi, Ltd. Information recording method
US6845081B2 (en) 1995-02-14 2005-01-18 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US6996054B2 (en) 1995-02-14 2006-02-07 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072281B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072286B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072280B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072288B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072282B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072277B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072279B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072287B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7072278B2 (en) 1995-02-14 2006-07-04 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7079478B2 (en) 1995-02-14 2006-07-18 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7082098B2 (en) 1995-02-14 2006-07-25 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7088652B2 (en) 1995-02-14 2006-08-08 Hitachi, Ltd. Optical recording apparatus
US7092349B2 (en) * 1995-02-14 2006-08-15 Hitachi, Ltd. Optical reproducing method optical medium with aligned prepit portion
US7092350B2 (en) 1995-02-14 2006-08-15 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion
US7099263B2 (en) 1995-02-14 2006-08-29 Hitachi Ltd Optical reproducing method for optical medium with aligned prepit portion
US7151721B2 (en) 1995-02-14 2006-12-19 Hitachi, Ltd. Optical recording method using land/groove recording
US7154842B2 (en) 1995-02-14 2006-12-26 Hitachi, Ltd. Optical reproducing method for optical medium with aligned prepit portion

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