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US 2006/0051104 A1Published application
Receiving error rate control device
AssigneeFujitsu Limited
InventorSatoshi Yamamoto
Life of this patent
Estimating the term…
Abstract
A reception error rate controller in which the settling time can be shortened at the time of feedback control by controlling the quality of a received signal when the error rate is low. The reception error rate controller identifies the received signal by comparing it with a reference value, detects the error rate of the identified signal, controls the reference value based on the error rate and further controls the quality of the received signal based on the error rate.
Claims13
A receiving error rate control device comprising:
- an identifying unit identifying a received signal by comparing the received signal with a reference value;
- an error detecting unit detecting an error rate of the signal identified by said identifying unit;
- a feedback control unit controlling the reference value on the basis of the error rate detected by said error detecting unit;
- and
- a quality control unit performing control of making erroneous a post-identifying signal with respect to the receiving signal on the basis of the error rate detected by said error detecting unit.
2 more elements
A receiving error rate control device comprising:
- a photoelectric converting unit converting a received optical signal into an electric signal;
- an identifying unit identifying the electric signal by comparing the electric signal with a reference value;
- an error detecting unit detecting an error rate of the signal detected by said identifying unit;
- a feedback control unit controlling the reference value on the basis of the error rate detected by said error detecting unit;
- and
- a quality control unit controlling a quality by making erroneous the post-identifying signal with respect to the electric signal that is subjected to the conversion by said photoelectric converting unit on the basis of the error rate detected by said error detecting unit.
3 more elements
A receiving error rate control device comprising:
- a photoelectric converting unit converting a received optical signal into an electric signal;
- a band control unit controlling a band of the electric signal;
- an identifying unit identifying the electric signal by comparing the electric signal with a reference value;
- a detecting unit detecting an error rate of the signal identified by said identifying unit;
- a feedback control unit controlling the reference value on the basis of the error rate detected by said error detecting unit;
- and
- a quality control unit controlling a quality of the electric signal by controlling a control voltage of said band control unit on the basis of the error rate detected by said error detecting unit.
4 more elements
A receiving error rate control device comprising:
- an optical amplifying unit amplifying a received optical signal;
- a photoelectric converting unit converting the received optical signal into an electric signal;
- an identifying unit identifying the electric signal by comparing the electric signal with a reference value;
- an error detecting unit detecting an error rate of the signal identified by said identifying unit;
- a feedback control unit controlling the reference value on the basis of the error rate detected by said error rate detecting unit;
- and
- a quality control unit controlling a quality of the optical signal by modulating a control voltage of said optical amplifying unit on the basis of the error rate detected by said error rate detecting unit.
4 more elements
A receiving error rate control device comprising:
- an optical attenuation unit attenuating a received optical signal;
- a photoelectric converting unit converting the received optical signal into an electric signal;
- an identifying unit identifying the electric signal by comparing the electric signal with a reference value;
- an error detecting unit detecting an error rate of the signal identified by said identifying unit;
- a feedback control unit controlling the reference value on the basis of the error rate detected by said error rate detecting unit;
- and
- a quality control unit controlling a quality of the optical signal by modulating a control voltage of said optical attenuation unit on the basis of the error rate detected by said error rate detecting unit.
4 more elements
A receiving error rate control device comprising:
- a photoelectric converting unit converting a received optical signal into an electric signal;
- an identifying unit identifying the electric signal by comparing the electric signal with a reference value;
- an error detecting unit detecting an error rate of the signal identified by said identifying unit;
- a feedback control unit controlling the reference value on the basis of the error rate detected by said error rate detecting unit;
- and
- a quality control unit controlling a quality of the optical signal on the basis of the error rate detected by said error rate detecting unit.
3 more elements
Dependencies are inferred from the claim text.