Lignes Telegraphiques et Telephoniques-L.T.T.

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Conflans-Ste-Honorine, FR

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Patents Grantslast 30 patents

Information Patent Grant
Bidirectional optical wavelength multiplexer-demultiplexer
- Patent number 4,708,425
- Issue date Nov 24, 1987
- Lignes Telegraphiques et Telephoniques Ltt
- Mohamed Gouali
- G02 - OPTICS
Information Patent Grant
Optical multiplexer-demultiplexer for use with optical fiber wavele...
- Patent number 4,630,255
- Issue date Dec 16, 1986
- Lignes Telegraphiques et Telephoniques L.T.T.
- Mohamed Gouali
- G02 - OPTICS
Information Patent Grant
A device for distributing light energy including at least one inlet...
- Patent number 4,621,894
- Issue date Nov 11, 1986
- Lignes Telegraphiques et Telephoniques L.T.T.
- Mohamed Gouali
- G02 - OPTICS
Information Patent Grant
Synchronization device for digital frame transmission
- Patent number 4,594,728
- Issue date Jun 10, 1986
- Lignes Telegraphiques et Telephoniques LTT
- Maurice Niquel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for transmitting digital signals over an optical fiber
- Patent number 4,504,975
- Issue date Mar 12, 1985
- Lignes Telegraphiques et Telephoniques-L.T.T.
- Bertrand Jarret
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

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