Fast decision threshold controller for burst-mode receiver

Details Fast decision threshold controller for burst-mode receiver Fast decision threshold controller for burst-mode receiver

2006-06-06

2006-06-06

Payne, David C. (Department: 2638)

Optical communications

Receiver

C370S286000, C370S287000, C370S332000, C370S290000

Reexamination Certificate

active

07058315

ABSTRACT:
A repetitive burst-mode input signal that has a dark time portion, a preamble portion, and a payload portion is converted into a limited output signal in accordance with a decision threshold level, which is controlled by selectively coupling an averaged value of the burst-mode data amplitude to the decision threshold level. The timing sequence for selectively coupling the averaged signal value is controlled such that the average value of the burst-mode signal acquired during the preamble portion of the burst-mode signal is applied to the decision threshold level during substantially all of the payload portion. The control circuit may incorporate a phase-locked loop, which locks onto the repetitive dark time frequency and in response synthesizes a switchable track enable signal that controls the timing sequence of the decision threshold level. The phase-locked loop can employ all-digital, analog, and/or hybrid digital/analog circuitry.

REFERENCES:
patent: 5307196 (1994-04-01), Kinoshita
patent: 5430766 (1995-07-01), Ota et al.
patent: 5539779 (1996-07-01), Nagahori
patent: 5600679 (1997-02-01), Kadowaki et al.
patent: 5862187 (1999-01-01), Dwarakanath et al.
patent: 6055279 (2000-04-01), Ota
patent: 6191879 (2001-02-01), Yanagisawa
patent: 6362911 (2002-03-01), Lee et al.
patent: 6580537 (2003-06-01), Chang et al.
patent: 2001/0004388 (2001-06-01), Hataeyama
patent: 0 909 046 (1999-04-01), None
Kawai, M. et al., “Smart Optical Receiver with Automatic Decision Threshold Setting and Retiming Phase Alignment,” Journal of Lightwave Technology, vol. 7, No. 11, Nov. 1989, pp. 1634-1640.
European Search Report issued for EP 02 25 6886, dated Dec. 3, 2004.
U.S. Appl. No. 09/703,057, System and Method for IP Router with an Optical, filed Oct. 31, 2000.
U.S. Appl. No. 09/703,056, “System and Method for Router Central Arbitration”, filed Oct. 31, 2000.
U.S. Appl. No. 09/703,038, “System and Method for Router Data Aggregation and Delivery”, filed Oct. 31, 2000.
U.S. Appl. No. 09/702,958, “Timing and Synchronization for an IP Router Using an Optical Switch”, filed Oct. 31, 2000.
U.S. Appl. No. 09/703,027, Router Network Protection Using Multiple Facility Interfaces, filed Oct. 31, 2000.
U.S. Appl. No. 09/703,043, “Router Line Card Protection Using One-For-N Redundancy”, filed Oct. 31, 2000.
U.S. Appl. No. 09/703,064, “Router Switch Fabric Protection Using Forward Error Correction”, Oct. 31, 2000.
09/737,646, “System and Method for Router Packet Control and Ordering”, filed Dec. 14, 2000.
U.S. Appl. No. 09/740,923, “System and Method for Router Queue and Congestion Management,” filed Dec. 19, 2000.
U.S. Appl. No. 09/760,027, “System and Method for Router Arbiterr Protection Switching”, filed Jan. 1, 2001.
Multiplex, Inc., MTXRX192AR, High-Performance Optical Receiver.
Conexant, CX60083, 10 Gbps High Gain Limiting Amplifier, dated Apr. 12, 2000.

Affiliated with

Also associated with

Rating

Fast decision threshold controller for burst-mode receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fast decision threshold controller for burst-mode receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast decision threshold controller for burst-mode receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3618617