Differential phase detection device and tracking error...

Details Differential phase detection device and tracking error... Differential phase detection device and tracking error...

2005-12-20

2005-12-20

Chin, Stephen (Department: 2634)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C369S044270, C369S044320, C369S044340

Reexamination Certificate

active

06977982

ABSTRACT:
A differential phase detection device receives first through fourth detection signals from a photodetector and detects a differential phase signal therefrom, the differential phase detection device includes a slicer slicing and digitizing each of the detection signals with respect to a reference level. A synthesizer synthesizes the digitized detection signals and generates therefrom synthesis signals. A phase difference detector compares phases of the synthesis signals and outputs a first phase difference signal and a second phase difference signal. A matrix circuit processes the first and second phase difference signals to output the differential phase signal.

REFERENCES:
patent: 5258968 (1993-11-01), Matsuda et al.
patent: 5914922 (1999-06-01), Supino et al.
patent: 5956304 (1999-09-01), Supino et al.
patent: 6507544 (2003-01-01), Ma et al.
patent: 0 895 227 (1999-03-01), None
patent: 63-152031 (1988-06-01), None
patent: 9-161285 (1997-06-01), None
patent: 10-97724 (1998-04-01), None
patent: 10-97725 (1998-04-01), None
patent: 10-177727 (1998-06-01), None
patent: 2000-251283 (2000-09-01), None

Affiliated with

Also associated with

Rating

Differential phase detection device and tracking error... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential phase detection device and tracking error..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential phase detection device and tracking error... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3493445