Title:
既定のスペクトル形状を持つバイナリ信号を発生する方法
Document Type and Number:
Japanese Patent JP2004507016
Kind Code:
A
Abstract:
The invention relates to a method for generating a primary binary signal having a predetermined spectral shape in a predetermined frequency range, in particular having a notch in the power spectrum in a predetermined frequency range. In order to avoid crosstalk between a primary binary signal and a secondary binary signal it is proposed according to the invention that data-words are modulated into channel-words forming the channel bitstream of the primary binary signal and that the modulation of the data-words is chosen such that the predetermined spectral shape of the channel bitstream of the primary binary signal is achieved by using an evaluation criterion based on a spectral weight function the shape of which is tailored to the spectral extent of the channel bitstream of a secondary binary signal. The invention is in particular useful for generating a primary binary signal which is used in the lead-in area of an optical record carrier where a wobble is used in the secondary binary signal for storing a wobble key. The invention relates further to a device for generating the channel bitstream of a primary binary signal, to a primary binary signal and to a record carrier for storing such a binary signal.
Inventors:
Coenwillem MJ
Ostvene job job see
Spruit Aloysius MJM
Van Ruth Sullen Paulus Earl Jay
De Bois Jean H
Ostvene job job see
Spruit Aloysius MJM
Van Ruth Sullen Paulus Earl Jay
De Bois Jean H
Application Number:
JP2002520225A
Publication Date:
March 04, 2004
Filing Date:
July 31, 2001
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
G11B7/0045; G11B7/007; G11B20/00; G11B20/10; G11B20/14; G11B20/18; H03M5/14; H03M13/31; (IPC1-7): G11B7/0045; G11B7/007; G11B20/10; G11B20/14
Attorney, Agent or Firm:
Susumu Tsugaru
Akihiko Miyazaki
Hiroyoshi Aoki
Akihiko Miyazaki
Hiroyoshi Aoki