Method and apparatus for transmission of upstream data in an...

Details Method and apparatus for transmission of upstream data in an... Method and apparatus for transmission of upstream data in an...

2005-08-02

2005-08-02

Pascal, Leslie (Department: 2633)

Optical communications

Transmitter and receiver system

Including synchronization

C398S031000, C398S034000

Reexamination Certificate

active

06925263

ABSTRACT:
In an optical network that communicates upstream data utilizing a time division multiple access (TDMA) technique, end nodes transmit upstream data on a first wavelength in accordance with a transmission sequence. The end nodes transmit a timing signal on a second wavelength following the upstream data. The timing signals are reflected by a wavelength selective reflective element to each of the end nodes. The end nodes track the timing signals to determine when to transmit upstream data in accordance with the transmission sequence. The optical network includes an outside plant node coupled to the system head end with a distribution fiber. The outside plant node is coupled to the end nodes with drop fibers. The outside plant node includes a splitter/combiner and the wavelength selective reflective element. The wavelength selective reflective element reflects the timing signals on the second wavelength and passes upstream and downstream data on other wavelengths.

REFERENCES:
patent: 6163392 (2000-12-01), Condict et al.
patent: 6278817 (2001-08-01), Dong
patent: 6278819 (2001-08-01), Reddy
patent: 0425732 (1991-05-01), None
patent: 0777353 (1997-06-01), None
patent: WO-95/17055 (1995-06-01), None
patent: WO-00/74278 (2000-12-01), None
Chae, C., et al., “A PON System Suitable for Internetworking Optical Network Units Using a Fiber Bragg Grating on the Feeder Fiber”,IEEE Photonics Technology Letters, vol. 11, 1686-1688, (Dec. 1999).
Saleh, A., et al., “Reflective Single-Mode Fiber-Optic Passive Star Couplers”,Journal of Lightwave Technology, vol. 6, 392-398, (Mar. 1988).

Affiliated with

Also associated with

Rating

Method and apparatus for transmission of upstream data in an... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for transmission of upstream data in an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for transmission of upstream data in an... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3500378