Phase synchronization system

Details Phase synchronization system Phase synchronization system

1996-04-11

1997-09-30

Chin, Wellington

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359158, 359161, 356 731, 375362, H04B 1000, H04B 1006

Patent

active

056731337

ABSTRACT:
The invention has the object of offering a phase synchronization system for wavelength division multiplexed bi-directional communications systems which can perform high-precision phase synchronization between a master device and a slave device without being affected by chromatic dispersion within the optical transmission medium. FIG. 1 is a block diagram showing the structure of an embodiment of the phase synchronization system of the invention. The phase synchronization system switches between phase difference measurement between optical signals of two different wavelengths which propagate in opposite directions and phase difference measurement between optical signals of the two different wavelengths which propagate in the same direction. By comparing the data indicating the phase difference, the system determines the delay time between the master device and the slave device.

REFERENCES:
patent: 3654473 (1972-04-01), Nussmeler
patent: 4287606 (1981-09-01), Lutes, Jr. et al.
patent: 4295741 (1981-10-01), Palma et al.
patent: 4754452 (1988-06-01), Henry
patent: 4984884 (1991-01-01), Ryu et al.
patent: 5115332 (1992-05-01), Naito et al.
patent: 5267072 (1993-11-01), Maleki
patent: 5280376 (1994-01-01), Takahashi et al.
patent: 5471332 (1995-11-01), Shiragaki et al.

Affiliated with

Also associated with

Rating

Phase synchronization system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase synchronization system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase synchronization system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2260987