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:
Jun. 29, 1982
Filed:
Jan. 21, 1980
Jean-Paul Tache, Lieu dit Moncey Saint-Laurent d'Agny, FR;
Compagnie Lyonnaise de Transmissions Optiques, Clichy, FR;
Abstract
The present invention concerns a method for the serial transmission of binary data in which each binary digit is transmitted in the form of an elementary signal occupying a time interval known as the binary interval. In this process a binary 1 is represented alternatively by a pulse or a space occupying the whole of the corresponding binary interval; a binary 0 is normally represented by a pulse occupying a half binary interval, except in the case where it is the first or the last one of a sequence of n+1 successive binary zeroes, the first being represented according to the above rule as a binary 0, except if the binary ones appeared after the preceeding sequence of n+1 successive binary zeros and are an even number, in which case it is represented as a binary 1 following the rule of alternation, the last being represented in accordance with the above rule as a binary 1 contradicting the alternation rule. The invention can be used to advantage in fibre optic links joining junctions encoded in HDB.sub.3.