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:
Dec. 13, 1977
Filed:
Nov. 22, 1976
Applicant:
Inventors:
Sylvain Fontanes, Chatou, FR;
Daniel Forster, Chatou, FR;
Assignee:
Compagnie Europeenne de Teletransmission (C.E.T.T.), Chatou, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
179 / ; 179 / ; 179 / ;
Abstract
For multiplexing 6 binary channels for example, two transcoders are respectively fed by the groups of input channels A, B, C and D, E, F in each of which is inserted a locking and identification word. Two three-channel frames in intermediate ternary form are thus obtained. Conversion into definitive ternary code (moment +, O, -) takes place at the same time as the interlacing, moment by moment, of the two three-channel frames. The demultiplexer groups the moments pertaining to one and the same three-channel frame for transcoding. The system allows high speed multiplexing.