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:
Apr. 19, 1994
Filed:
Mar. 24, 1992
Ichirou Konno, Chiba, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A plurality of first codeword pairs each including a 15-bit codeword of which CDS is equal to +3 and a 15-bit codeword of which CDS is equal to -1 and a plurality of second code pairs each including a 15-bit codeword of which CDS is equal to +1 and a 15-bit codeword of which CDS is equal to -3 are produced. One of the plurality of first code pairs and one of the plurality of second code pairs are assigned to each 8-bit data word, and one of the first and second code pairs assigned to each 8-bit data word is selected so that the number of continuous identical bits in a 15-bit codeword sequence is not less than 2 and not more than 8. One of two 15-bit codewords included in the selected code pair is selected so that DSV at the last bit of each 15-bit codeword periodically varies.