公开(公告)号：EP1436807A1

公开(公告)日：2004-07-14

申请号：EP02801535.2

申请日：2002-10-10

申请人： Koninklijke Philips Electronics N.V. ,  Matsushita Electric Industrial Co., Ltd. ,  Sony Corporation

发明人： HEEMSKERK, Jacobus Petrus Josephus ,  SCHEP, Cornelis Marinus ,  STEK, Aalbert ,  TANAKA, S.,Matsushita Electric Industrial Co. Ltd ,  FURUMIYA, S.,Matsushita Electric Ind. Co., Ltd ,  KOBAYASHI, Shoei,c/o Sony Corporation ,  KOBAYASHI, Nobuyoshi,c/o Sony Corporation

IPC分类号： G11B7/007 ,  G11B7/24 ,  G11B20/14

CPC分类号： G11B7/0053 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24082 ,  G11B20/1217 ,  G11B20/14 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1239 ,  G11B2020/1265 ,  G11B2020/1268 ,  G11B2020/1287 ,  G11B2020/1298 ,  G11B2220/213 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/235 ,  G11B2220/2541

摘要： In an optical disc, a wobble signal is to be detected by a simple configuration. In the optical disc, the address information, modulated onto a sinusoidal carrier signal by adding even harmonics signals to said sinusoidal carrier signal and by changing the polarity of said harmonics signals, is formed into the wobble signal. In detecting the wobble signal from the optical disc to demodulate the address information, in a method for detecting the wobble signal, an even harmonics signal and data clocks are generated, and the even harmonics signal so generated are multiplied with the reproduced wobble signal. The resulting product signal is integrated every data clock. The sign of the digital information is verified based on the integrated value at an end edge of the data clock.

公开(公告)号：EP1436807B1

公开(公告)日：2007-12-05

申请号：EP02801535.2

申请日：2002-10-10

申请人： Koninklijke Philips Electronics N.V. ,  MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD ,  Sony Corporation

发明人： HEEMSKERK, Jacobus Petrus Josephus ,  SCHEP, Cornelis Marinus ,  STEK, Aalbert ,  TANAKA, S., Matsushita Electric Industrial Co. Ltd ,  FURUMIYA, S., Matsushita Electric Ind. Co., Ltd ,  KOBAYASHI, Shoei, c/o Sony Corporation ,  KOBAYASHI, Nobuyoshi, c/o Sony Corporation

IPC分类号： G11B7/007 ,  G11B7/24 ,  G11B20/14

CPC分类号： G11B7/0053 ,  G11B7/005 ,  G11B7/007 ,  G11B7/24082 ,  G11B20/1217 ,  G11B20/14 ,  G11B27/24 ,  G11B27/3027 ,  G11B2020/1239 ,  G11B2020/1265 ,  G11B2020/1268 ,  G11B2020/1287 ,  G11B2020/1298 ,  G11B2220/213 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/235 ,  G11B2220/2541

摘要： In an optical disc, a wobble signal is to be detected by a simple configuration. In the optical disc, the address information, modulated onto a sinusoidal carrier signal by adding even harmonics signals to said sinusoidal carrier signal and by changing the polarity of said harmonics signals, is formed into the wobble signal. In detecting the wobble signal from the optical disc to demodulate the address information, in a method for detecting the wobble signal, an even harmonics signal and data clocks are generated, and the even harmonics signal so generated are multiplied with the reproduced wobble signal. The resulting product signal is integrated every data clock. The sign of the digital information is verified based on the integrated value at an end edge of the data clock.

公开(公告)号：EP1552507B1

公开(公告)日：2008-06-18

申请号：EP03755281.7

申请日：2003-05-22

申请人： Sony Corporation ,  MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD ,  Koninklijke Philips Electronics N.V.

发明人： KOBAYASHI, Shoei ,  YAMAGAMI, Tamotsu ,  KADOWAKI, Shin-ichi ,  ISHIDA, Takashi ,  SCHEP, Cornelis Marinus ,  BORG, Hermanus Johannes

IPC分类号： G11B7/007

CPC分类号： G11B7/24038 ,  G11B7/00736

摘要： 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.

公开(公告)号：EP1552507A2

公开(公告)日：2005-07-13

申请号：EP03755281.7

申请日：2003-05-22

申请人： Sony Corporation ,  MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  Koninklijke Philips Electronics N.V.

发明人： KOBAYASHI, Shoei ,  YAMAGAMI, Tamotsu ,  KADOWAKI, Shin-ichi ,  ISHIDA, Takashi ,  SCHEP, Cornelis Marinus ,  BORG, Hermanus Johannes

IPC分类号： G11B7/007

CPC分类号： G11B7/24038 ,  G11B7/00736

摘要： 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.