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.