The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2007
Filed:
Sep. 18, 2003
Willem Marie Julia Marcel Coene, Eindhoven, NL;
Job Cornelis Oostveen, Eindhoven, NL;
Aloysius Michael Josephus Maria Spruijt, Eindhoven, NL;
Paulus Reinier Joannes Van Roosmalen, Eindhoven, NL;
Jan Harm DE Boer, Eindhoven, NL;
Willem Marie Julia Marcel Coene, Eindhoven, NL;
Job Cornelis Oostveen, Eindhoven, NL;
Aloysius Michael Josephus Maria Spruijt, Eindhoven, NL;
Paulus Reinier Joannes Van Roosmalen, Eindhoven, NL;
Jan Harm De Boer, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
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.