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:
Aug. 04, 2009
Filed:
Feb. 02, 2004
Joseph D. Farley, Warwick, MA (US);
Gary W. Vincent, Lunenburg, MA (US);
Brian A. Rusiecki, Sterling, MA (US);
Kenneth E. Savage, Jr., Fitchburg, MA (US);
Joseph D. Farley, Warwick, MA (US);
Gary W. Vincent, Lunenburg, MA (US);
Brian A. Rusiecki, Sterling, MA (US);
Kenneth E. Savage, Jr., Fitchburg, MA (US);
SimplexGrinnell LP, Westminster, MA (US);
Abstract
A fire alarm network fiber optic multiplex modem includes plural local interfaces, a fiber optic interface, a multiplexor, a fiber optic modem, and a demultiplexor. The multiplexor combines data received at the local interfaces into an outgoing data stream. The fiber optic modem transmits, at a first wavelength, the outgoing data stream to the fiber optic interface and receives, at a second wavelength, an incoming data stream via the fiber optic interface. The demultiplexor separates the incoming data stream into separate data streams, and forwards each of the separate data streams to its corresponding local interface.