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. 29, 2006
Filed:
Nov. 07, 2003
Josephus A. H. M. Kahlman, Eindhoven, NL;
Kornelis A. Schouhamer Immink, Eindhoven, NL;
Gijsbert Van Den Enden, Veldhoven, NL;
Toshiyuki Nakagawa, Tokyo, JP;
Yoshihide Shinpuku, Tokyo, JP;
Tatsuya Narahara, Tokyo, JP;
Kosuke Nakamura, Tokyo, JP;
Josephus A. H. M. Kahlman, Eindhoven, NL;
Kornelis A. Schouhamer Immink, Eindhoven, NL;
Gijsbert Van Den Enden, Veldhoven, NL;
Toshiyuki Nakagawa, Tokyo, JP;
Yoshihide Shinpuku, Tokyo, JP;
Tatsuya Narahara, Tokyo, JP;
Kosuke Nakamura, Tokyo, JP;
Koninkijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A DSV control bit determining/inserting unit inserts DSV control bits for execution of DSV control into an input data string and outputs the data string including the DSV control bits to a modulation unit. This modulation unit converts the data string with a basic data length of 2 bits into variable length code with a basic code length of 3 bits in accordance with a conversion table and outputs the code resulting from the conversion to a NRZI encoding unit. The conversion table used by the modulation unit includes substitution codes for limiting the number of consecutive appearances of a minimum run to a predetermined value and substitution codes for keeping a run length limit. In addition, the conversion table enforces a conversion rule, according to which the remaineder of division of the '1' count of an element in a data string by 2 having a value of 0 or 1 shall always be equal to the remainder of division of the '1' count of an element in the code resulting from conversion of the data string by 2.