Automatic configuration and optimization of optical transmission using raw error rate monitoring
AssigneeBig Bear Networks, Inc.
InventorsLaura Ellen Adams, John Paul Mattia, Jonathan P. King
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Abstract
The system includes a receiver for receiving a bit stream; an error monitor for indicating a first error rate for a first set of data received in the bit stream; and an adjustable circuit for converting an incoming signal into the bit stream using a reference signal that is modulated using a control signal. The system also includes a subsystem for correlating the first error rate and the control signal to generate the reference signal. The control signal has an amplitude that is selected so that a second set of data received in the bit stream has a second error rate that is less than the first error rate.
Claims35
A system for reducing error rates in received data, said system comprising:
- a receiver for receiving a bit stream;
- an error monitor coupled to said receiver and for indicating a first error rate for a first set of data received in said bit stream;
- an adjustable circuit coupled to said error monitor and for converting an incoming signal into said bit stream using a reference signal that is modulated using a control signal;
- and
- a subsystem coupled to said circuit and for correlating said first error rate and said control signal to generate said reference signal, said control signal having an amplitude that is selected so that said converting results in a second set of data received in said bit stream having a second error rate that is less than said first error rate.
A system for reducing error rates in received data, said system comprising:
- a decision control circuit for converting an incoming electrical signal into a bit stream comprising a first set of received data;
- an error monitor coupled to said decision control circuit and for indicating a first error rate in said first set of received data;
- a control signal generator coupled to said error monitor and for generating a control signal, wherein said control signal is a waveform having an amplitude selected to produce a second error rate in a second set of received data, said second error rate less than said first error rate;
- a correlator coupled to said error monitor and for correlating said first error rate with said control signal to generate a reference adjustment;
- a reference generator coupled to said correlator and for generating a reference signal that is adjusted using said references adjustment to produce an adjusted reference signal;
- and
- a modulator coupled to said reference generator and for modulating said adjusted reference signal by said control signal to generate a modulated reference signal, wherein said modulated reference signal is used by said decision control circuit to convert said electrical signal into said bit stream.
A method of reducing error rates in received data, said method comprising:
- receiving an electrical signal from a transmission channel;
- converting said electrical signal into a bit stream comprising a first set of data;
- indicating a first error rate in said first set of data;
- generating a control signal, wherein said control signal is a waveform having an amplitude selected to produce a second error rate in a second set of data received in said bit stream, said second error rate less than said first error rate;
- correlating said first error rate with said control signal to generate a reference adjustment;
- generating a reference signal that is adjusted using said reference adjustment to produce an adjusted reference signal;
- and
- modulating said adjusted reference signal with said control signal to produce a modulated reference signal, wherein said modulated reference signal is used convert said electrical signal into said bit stream.
A system for reducing error rates in received data, said system comprising:
- a decision control circuit for converting an incoming electrical signal into a bit stream comprising a first set of received data;
- an error monitor coupled to said decision control circuit and for indicating a first error rate in said first set of received data;
- a plurality of control signal generators coupled to said error monitor and for generating a plurality of control signals, wherein said control signals are waveforms having amplitudes selected to produce second error rates in said sets of received data, said second error rates less than said first error rate;
- a plurality of correlators coupled to said error monitor and for correlating said first error rate with said control signals to generate a plurality of reference adjustments;
- a plurality of reference generators, each reference generator coupled to a respective correlator and for generating a respective reference signal that is adjusted using a respective reference adjustment to produce a plurality of respective adjusted reference signals;
- and
- a plurality of modulators, each modulator coupled to a respective reference generator and for modulating a respective adjusted reference signal by a respective control signal to generate a plurality of respective modulated reference signals, wherein said modulated reference signals are used by said decision control circuit to convert said electrical signal into said bit stream.
A method of reducing error rates in received data, said method comprising:
- receiving an electrical signal from a transmission channel;
- converting said electrical signal into a bit stream comprising a first set of data;
- indicating a first error rate in said first set of data;
- generating a plurality of control signals, wherein said control signals are waveforms having amplitudes selected to produce second error rates in second sets of data, said second error rates less than said first error rate;
- correlating said first error rate with said control signals to generate a plurality of reference adjustments;
- generating a plurality of reference signals, wherein each of said reference signals is adjusting using a respective reference adjustment to produce a plurality of respective adjusted reference signals;
- and
- modulating each adjusted reference signal by a respective control signal to produce a plurality of respective modulated reference signals, wherein said modulated reference signals are used convert said electrical signal into said bit stream.
Dependencies are inferred from the claim text.