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. 27, 1976
Filed:
Jan. 17, 1975
Thomson-CSF, Paris, FR;
Abstract
A system for creating independent communication channels using a single optical fibre, is provided. To this end, at the transmitting end, several 'laser' diodes such as that E.sub.11 (FIG. 1) supply infrared rays of a wavelength defined to within at least 50 angstrom units (in the case of suitably doped gallium arsenide diodes), to selective mirrors such as that M.sub.11 which are quasi-transparent vis-a-vis other wave lengths. These rays focussed along with those coming from other diodes, upon the entry face 11 of the fibre. At the receiving end, there is an arrangement similar to that at the transmitting end, but comprising, instead of the diodes, photodetectors. A diode and a photodetector may be exchanged in order to provide a channel operating in the reverse direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile