公开(公告)号：AU2009200560B8

公开(公告)日：2011-03-10

申请号：AU2009200560

申请日：2009-02-13

Applicant: PANASONIC CORP

Inventor： UEDA HIROSHI ,  ITO MOTOSHI ,  YAMAMOTO YOSHIKAZU ,  ISHIDA TAKASHI ,  SHOJI MAMORU

IPC: G11B7/007 ,  G11B20/18 ,  G11B7/004 ,  G11B7/24038 ,  G11B20/12 ,  G11B27/32

Abstract: A multi-layered information recording medium comprising a plurality of recording layers, a user data area for recording user data, provided in at least two of the plurality of recording layers, and a defect list storing area for storing a defect list. When at least one defective area is detected in the user data area, the defect list is used to manage the at least one defective area. The defect list storing area is provided in only one of the plurality recording layers.

公开(公告)号：AT490536T

公开(公告)日：2010-12-15

申请号：AT09156924

申请日：2005-09-26

Applicant: PANASONIC CORP

Inventor： ISHIDA TAKASHI

IPC: G11B7/125 ,  G11B7/0045 ,  G11B7/007

Abstract: The invention aims to provide a recordable dual-layer optical disc (101,601) which allows precise recording learning on both layers (202,204). A first information recording layer (202) located further from the light incidence side includes a read-only control data area (304a,504a), a first test area (306a, 506a), and a second test area (315a,515a). A second information layer (204) located closer to the light incidence side includes a third test area (304b,504b) located at a position opposite to the control data area (304a,504a), and a fourth test area (315b,515b) located at a position opposite to the second test area (315a,515a).

公开(公告)号：AU2010212277A1

公开(公告)日：2010-09-02

申请号：AU2010212277

申请日：2010-08-11

Applicant: PANASONIC CORP

Inventor： ABE SHINYA ,  ISHIDA TAKASHI

IPC: G11B7/00 ,  G11B7/005 ,  G11B7/007

Abstract: An optical disk and a method for identifying the optical disk are provided which make it possible to identify a recording system of the optical disk easily in a short time by a recording and reproduction apparatus when a groove-recording system and a land-recording system are both employed in one kind of optical disk, for, example, a BD-R. Specifically, the polarity upon reproducing the wobble information is made to be the same in both of the optical disk of groove-recording system and the optical disk of land-recording system. The recording system of the optical disk that shows the same wobble polarity irrespective of the recording system can be easily detected by finding a tracking polarity that can recognize the wobble information by changing the tracking polarity, whereby the start-up time of the recording and reproduction apparatus can be shortened.

公开(公告)号：AT476735T

公开(公告)日：2010-08-15

申请号：AT05739006

申请日：2005-05-10

Applicant: PANASONIC CORP

Inventor： ABE SHINYA ,  ISHIDA TAKASHI

IPC: G11B7/007 ,  G11B7/00 ,  G11B7/005

Abstract: An optical disk and a method for identifying the optical disk are provided which make it possible to identify a recording system of the optical disk easily in a short time by a recording and reproduction apparatus when a groove-recording system and a land-recording system are both employed in one kind of optical disk, for, example, a BD-R. Specifically, the polarity upon reproducing the wobble information is made to be the same in both of the optical disk of groove-recording system and the optical disk of land-recording system. The recording system of the optical disk that shows the same wobble polarity irrespective of the recording system can be easily detected by finding a tracking polarity that can recognize the wobble information by changing the tracking polarity, whereby the start-up time of the recording and reproduction apparatus can be shortened.

公开(公告)号：DE69840859D1

公开(公告)日：2009-07-16

申请号：DE69840859

申请日：1998-06-03

Applicant: PANASONIC CORP

Inventor： SHOJI MAMORU ,  OHARA SHUNJI ,  NAKAMURA ATSUSHI ,  ISHIDA TAKASHI

IPC: G11B7/00 ,  G11B7/007 ,  G11B7/09 ,  G11B7/095 ,  G11B7/125 ,  G11B20/10 ,  G11B20/18

Abstract: An optical disk apparatus performing either one of recording and reproduction of an optical disk in which groove-shaped groove tracks and land tracks present between the groove tracks are alternately connected to each other in a spiral shape, includes: a recording and reproduction unit for recording a signal in at least one continuous groove track and at least one continuous land track, and then reproducing the signal from the groove track and the land track; a detector for detecting a quality of the signal recorded and reproduced by the recording and reproduction unit; a control parameter setting unit for setting a control parameter related to at least one of the recording and the reproduction of the optical disk; and a controller for changing the control parameter set by the control parameter setting unit, repeating the recording and reproduction performed by the recording and reproduction unit and detection performed by the detector every time the control parameter is changed, and determining the control parameter based on the quality of the signal detected by the detector.

公开(公告)号：DE60137155D1

公开(公告)日：2009-02-05

申请号：DE60137155

申请日：2001-12-26

Applicant: PANASONIC CORP

Inventor： GUSHIMA TOYOJI ,  FURUMIYA SHIGERU ,  ISHIDA TAKASHI ,  ISHIBASHI HIROMICHI ,  DEGUCHI HIRONORI ,  NAKAMURA ATSUSHI ,  MINAMINO JUNICHI ,  USUI MAKOTO ,  NAKAJIMA TAKESHI

IPC: G11B7/0045 ,  G11B7/00 ,  G11B7/007 ,  G11B20/10 ,  G11B20/12 ,  G11B20/14 ,  G11B20/18 ,  G11B27/30

Abstract: A recording medium comprising a recording area, wherein: the recording area includes a first area, the first area includes a fourth area including N number of frame areas, N being equal to or greater than 2, each of the N number of frame areas includes an area in which a synchronization code sequence (SY) and at least a portion of data (DATA) are to be recorded, wherein the synchronization code sequence (VF0) which is to be recorded in the frame area located at the start of the fourth area is different by a code distance equal to or greater than 2 in NRZI representation from any synchronization code sequence (SY) which is to be recorded in any of the frame areas of the fourth area other than the frame area (F0) located at the start of the fourth area, and the synchronization code sequence (SY) which is to be recorded in the frame area located at the start of the fourth area includes a pattern which does not occur in the portion of data (DATA).

公开(公告)号：ES2348017T3

公开(公告)日：2010-11-26

申请号：ES05739006

申请日：2005-05-10

Applicant: PANASONIC CORP

Inventor： ISHIDA TAKASHI ,  ABE SHINYA LTD

IPC: G11B7/007 ,  G11B7/00 ,  G11B7/005

Abstract: Un método para grabar información de ondulación de un medio de grabación de información que comprende: seleccionar un sistema de grabación; y formar un surco de guía que tiene información de ondulación en el que la ondulación comienza su primera desviación de ondulación hacia el lado interior del medio en el caso de que el sistema de grabación seleccionado sea el sistema de grabación de surco, o un surco guía que tiene información de ondulación en el que la ondulación comienza su primera desviación de ondulación hacia el lado exterior del medio en el caso de que el sistema de grabación seleccionado sea un sistema de grabación de tierra.

公开(公告)号：DE602005022702D1

公开(公告)日：2010-09-16

申请号：DE602005022702

申请日：2005-05-10

Applicant: PANASONIC CORP

Inventor： ABE SHINYA ,  ISHIDA TAKASHI

IPC: G11B7/007 ,  G11B7/00 ,  G11B7/005

公开(公告)号：DE602005017652D1

公开(公告)日：2009-12-24

申请号：DE602005017652

申请日：2005-09-26

Applicant: PANASONIC CORP

Inventor： ISHIDA TAKASHI

IPC: G11B7/007 ,  G11B7/0045

Abstract: The invention aims to provide a recordable dual-layer optical disc (101,601) which allows precise recording learning on both layers (202,204). A first information recording layer (202) located further from the light incidence side includes a read-only control data area (304a,504a), a first test area (306a, 506a), and a second test area (315a,515a). A second information layer (204) located closer to the light incidence side includes a third test area (304b,504b) located at a position opposite to the control data area (304a,504a), and a fourth test area (315b,515b) located at a position opposite to the second test area (315a,515a).

公开(公告)号：AU2003232638B8

公开(公告)日：2009-11-19

申请号：AU2003232638

申请日：2003-05-22

Applicant: KONINKLIJKE PHILIPS ELECTRONICS NV ,  PANASONIC CORP ,  SONY CORP

Inventor： BORG HERMANUS JOHANNES ,  ISHIDA TAKASHI ,  YAMAGAMI TAMOTSU ,  SCHEP CORNELIS MARINUS ,  KADOWAKI SHIN-ICHI ,  KOBAYASHI SHOEI

IPC: G11B11/00 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B7/135 ,  G11B7/24 ,  G11B11/105

Abstract: With the disc-shaped recording medium, or the disc manufacturing method according to the present invention, for both the single-layer disc and the multi-layer disc, a recording layer L 0 , which is to be the first layer, is at the same distance, along the direction of disc thickness, from the surface of the cover layer CVLs on which falls the laser light. For the multi-layer disc, the second layer L 1 and the following layer(s) are formed at the locations which are closer to the cover layer CVLs than the first layer L 0 . Management information may be recorded by mobbling grooves, each layermay have tert areas, defect information, a replacement area. Thus, it is possible to improve compatibility, reliability and accessibility between a single-layer disc and a multi-layer disc. The spherical aberration for the recording/reproducing light may be controlled with respect to the selected layer.