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. 11, 1996
Filed:
Sep. 12, 1994
Applicant:
Inventor:
Jacques Abiven, Plouaret, FR;
Assignee:
France Telecom, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
370 30 ; 370 31 ; 370 84 ; 370 99 ; 370112 ; 359114 ; 359124 ;
Abstract
A tree-structured star telecommunication network of the wavelength division multiplex transmission type includes multirate periodic downstream and upstream frames transmitted at different wavelengths in full-duplex mode, thereby to connect a central terminal with a plurality of user terminals. Half-duplex transmission for each low bit rate terminal equipment uses a half-frame period shift with respect to the frame period between upstream frame data sectors and downstream frame data sectors. Data derive by the high rate equipment is transmitted in upstream and downstream sectors not occupied by low bit rate data.