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:
May. 18, 1999
Filed:
Oct. 31, 1996
Reed Kamenetzky Even, Livingston, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A system and method for providing two-way optical communications between a first location and at least one secondary location, wherein there is no light source available at the secondary location. In the system and method, the first location and the secondary locations are optically coupled by an optical fiber network. A laser light source is located at the first location and produces a first light signal that is transmitted to the secondary locations over the optical fiber network. At the secondary locations a portion of the first light signal is altered by selectively modulating the signal frequency. As a result, a second light signal is produced without the need of a second light source. The second light signal is then sent back to the first location over the optical fiber network where it can be isolated and interpreted as a data transmission.