RU99118674A - METHOD AND DEVICE FOR DETECTING A SERVO MOTOR ERROR, A DISC THAT SUPPORTS THE SIGNAL QUALITY ERROR OF A SERVO MOVER - Google Patents
METHOD AND DEVICE FOR DETECTING A SERVO MOTOR ERROR, A DISC THAT SUPPORTS THE SIGNAL QUALITY ERROR OF A SERVO MOVERInfo
- Publication number
- RU99118674A RU99118674A RU99118674/09A RU99118674A RU99118674A RU 99118674 A RU99118674 A RU 99118674A RU 99118674/09 A RU99118674/09 A RU 99118674/09A RU 99118674 A RU99118674 A RU 99118674A RU 99118674 A RU99118674 A RU 99118674A
- Authority
- RU
- Russia
- Prior art keywords
- signal
- header
- synchronous
- track
- recorded
- Prior art date
Links
- 230000001360 synchronised Effects 0.000 claims 34
- 230000003287 optical Effects 0.000 claims 8
- 230000000875 corresponding Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
Claims (1)
6. Способ по п. 4, отличающийся тем, что указанное отношение величин представляет собой
(уровень сигнала отражателя).5. The method according to p. 4, characterized in that the ratio of values is
6. The method according to p. 4, characterized in that the ratio of values is
(reflector signal level).
18. Устройство по п.14, отличающееся тем, что диск содержит дорожку поля и дорожку канавки, и устройство дополнительно содержит инвертор полярности для инвертирования полярности разности Kt в соответствии с дорожками поля/канавки.17. The device according to 14, characterized in that the balance value K 1 issued from the balance calculator is defined as
18. The device according to 14, characterized in that the disk contains a field track and a groove track, and the device further comprises a polarity inverter for inverting the polarity of the difference K t in accordance with the tracks of the field / groove.
28. Диск, в котором область данных разделена на сектора, каждый сектор имеет заголовок, содержащий адрес, заголовок имеет первый заголовок и второй заголовок, которые записаны таким образом, чтобы отклоняться от середины дорожки в противоположных направлениях, и первый заголовок и второй заголовок имеют области адресов, в которых записаны адреса секторов, и области синхронных сигналов, в которых записаны синхронные сигналы для детектирования сигналов адресов, записанных в областях адресов, в котором, когда величиной синхронного синхросигнала, детектируемого из первого заголовка, является lvfo1 и величиной синхронного синхросигнала, детектируемого из второго заголовка, является lvfo3, диск содержит питы, соответствующие синхронным выходам первого и второго заголовков таким образом, что отношение величины lvfo1 к величине lvfo3 имеет заданную ограниченную величину.27. The device according to p, characterized in that the balance value K 1 issued from the balance calculator is defined as
28. A disk in which a data region is divided into sectors, each sector has a heading containing an address, the heading has a first heading and a second heading that are written so as to deviate from the middle of the track in opposite directions, and the first heading and the second heading have areas addresses in which the addresses of sectors are recorded, and areas of synchronous signals in which synchronous signals are recorded for detecting address signals recorded in address areas, in which, when the value of the synchronous clock of the channel detected from the first header is lvfo1 and the value of the synchronous clock detected from the second header is lvfo3, the disk contains pits corresponding to the synchronous outputs of the first and second headers in such a way that the ratio of lvfo1 to lvfo3 has a predetermined limited value.
где (lo - величина сигнала отражателя).30. The disk according to p. 28, characterized in that the ratio of values is defined as
where (lo is the magnitude of the reflector signal).
38. Способ по п. 37, отличающийся тем, что диск разделен на сектора, имеющие заданную длину на дорожке, каждый сектор содержит эталонные сигналы, и балансовые величины, получаемые из смежных секторов, усредняются.37. A method for detecting a servo motor error of a device for reproducing data from an optical disc having a first reference signal and a second reference signal, which are recorded in such a way as to deviate from the middle of the track in opposite directions and which have the same pattern in which when the first reference signal is lvfo1 and the level of the second reference signal is lvfo3 in the playback signal reproduced from the optical disc, a servo motor error is detected by the ball owl value K 1 determined by the following equation
38. The method according to p. 37, wherein the disk is divided into sectors having a predetermined length on the track, each sector contains reference signals, and the balance values obtained from adjacent sectors are averaged.
40. Способ по п. 39, отличающийся тем, что диск разделен на сектора, имеющие заданную длину на дорожке, каждый сектор содержит эталонные сигналы, и балансовые величины, получаемые из смежных секторов, усредняются.39. A method for detecting a follow-up error of a device for reproducing data from an optical disc having a first reference signal and a second reference signal, which are recorded so as to deviate from the middle of the track in opposite directions and which have the same pattern in which, when the level the first reference signal is lvfo1 and the level of the second reference signal is lvfo3 in the playback signal reproduced from the optical disc, the following error is detected by the balance signal mask K 1 defined by the following equation
40. The method according to p. 39, characterized in that the disk is divided into sectors having a given length on the track, each sector contains reference signals, and the balance values obtained from adjacent sectors are averaged.
42. Способ по п. 41, отличающийся тем, что диск разделен на сектора, имеющие заданную длину на дорожке, каждый сектор содержит эталонные сигналы, и балансовые величины, получаемые из смежных секторов, усредняются.41. A method for detecting a tilt error of a device for reproducing data from an optical disc having a first reference signal and a second reference signal, which are recorded in such a way as to deviate from the middle of the track in opposite directions and which have the same pattern in which, when the level the first reference signal is lvfo1 and the level of the second reference signal is lvfo3 in the subtraction signal RF_pp reproduced from the optical disc, the tilt error is detected by the balance value K 1 , defined by the following equation
42. The method according to p. 41, characterized in that the disk is divided into sectors having a given length on the track, each sector contains reference signals, and the balance values obtained from adjacent sectors are averaged.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1998/35422 | 1998-08-29 | ||
KR1998/35421 | 1998-08-29 | ||
KR1999/8482 | 1999-03-13 |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2002114063/28A Division RU2248046C2 (en) | 1998-08-29 | 1999-08-27 | Device for recording data on disc and/or playback of data from disc, device for detecting slant error of device for playing data from optical disc |
RU2002114065/28A Division RU2248047C2 (en) | 1998-08-29 | 1999-08-27 | Method and device for detecting servo error, disc, supporting quality of servo error signal, method for adjustment of discs play/record device servo, method for detecting error of order and method for detecting slant error |
RU2002114067/28A Division RU2262750C2 (en) | 1998-08-29 | 1999-08-27 | Methods for detecting servo error, drive error, incline error and methods for recording data on disk and reproduction of data from optical disk |
Publications (1)
Publication Number | Publication Date |
---|---|
RU99118674A true RU99118674A (en) | 2001-07-10 |
Family
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