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:
Oct. 26, 2004
Filed:
Sep. 04, 2002
Ho Wai Wong-Lam, Sunnyvale, CA (US);
Kornelis Antonie Schouhamer Immink, Rotterdam, NL;
Cornelis Marinus Johannes Van Uijen, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a modulation code system, including an encoder and a decoder and two corresponding modulation code methods. More specifically, the encoder serves for transforming an original signal s into an encoded signal c satisfying predefined second constraints. Such encoder signals are, for example, transmitted via a channel or stored on a recording medium. After receipt or restoration, said encoded signal c is decoded by a decoder in order to regenerate the original signal s again. It is the object of the present invention to improve the known modulation code systems and methods in such a way that their embodiment requires less hardware. This object is solved in that the encoder comprises a series connection of a modulation code encoder and of a transformer encoder allowing an N-time integration of the output signal of said modulation code encoder . Moreover, this object is solved by embodying the decoder by a series connection of a transformer decoder for N-times differentiating the encoded signal c, and a modulation code decoder . N is an integer greater than 1.