Optical network unit and optical line terminal

Details Optical network unit and optical line terminal Optical network unit and optical line terminal

2004-10-07

2008-08-19

Smithers, Matthew B (Department: 2137)

Cryptography

Communication system using cryptography

Fiber optic network

C370S397000

Reexamination Certificate

active

07415111

ABSTRACT:
An optical network unit and an optical line terminal which efficiently control the data receiving and dechurning processes in a passive optical network. In a churning parameter memory subsystem, a first memory bank stores churning parameters that are currently used, while a second memory bank stores updates made to the churning parameters. Under the control of the churning parameter memory subsystem, those first and second memory banks change their roles with each other at a churning key updating time point. A data dechurning unit receives a data stream consisting of a plurality of frames and dechurns the information contained in the data stream, according to the stored churning parameters. When an update is done to the parameters in a certain frame, the data dechurning unit makes the update effective at the next frame, thus starting data dechurning operations from the next frame.

REFERENCES:
patent: 4531020 (1985-07-01), Wechselberger et al.
patent: 4965804 (1990-10-01), Trbovich et al.
patent: 5070528 (1991-12-01), Hawe et al.
patent: 5099517 (1992-03-01), Gupta et al.
patent: 5502767 (1996-03-01), Sasuta et al.
patent: 5594869 (1997-01-01), Hawe et al.
patent: 5805705 (1998-09-01), Gray et al.
patent: 5920627 (1999-07-01), Mionet et al.
patent: 6021391 (2000-02-01), Shyu
patent: 6029046 (2000-02-01), Khan et al.
patent: 6212278 (2001-04-01), Bacon et al.
patent: 6424714 (2002-07-01), Wasilewski et al.
patent: 6424717 (2002-07-01), Pinder et al.
patent: 6564324 (2003-05-01), Bacon et al.
patent: 0 874 503 (1998-10-01), None
patent: 1 032 159 (2000-08-01), None
patent: 2 078 063 (1980-12-01), None
patent: 2 079 109 (1982-01-01), None
patent: 2 124 856 (1984-02-01), None
patent: 6-237248 (1994-08-01), None
patent: 08-331119 (1996-12-01), None

Affiliated with

Also associated with

Rating

Optical network unit and optical line terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical network unit and optical line terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical network unit and optical line terminal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3996841