Receiving device and local light control method
AssigneeFujitsu Limited
InventorYuki Endo
Life of this patent
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Abstract
A receiving device includes a light source, a wave multiplexer, a converter, a demodulator and a processor. The light source outputs local light. The wave multiplexer causes the local light to interfere with a received signal to acquire an optical signal. The converter converts the optical signal into an electrical signal. The demodulator demodulates the electrical signal to acquire a demodulated signal. The processor is configured to correct an error of the demodulated signal. The processor is configured to acquire a signal correction amount and/or an error rate. The processor is configured to control the light source in order to adjust an output intensity of the local light based on the signal correction amount and/or the error rate.
Claims9
A receiving device comprising:
- a light source that outputs local light;
- a wave multiplexer that causes the local light to interfere with a received signal to acquire an optical signal;
- a converter that converts the optical signal into an electrical signal;
- and
- a demodulator that demodulates the electrical signal to acquire a demodulated signal;
- a processor configured to:
- correct an error of the demodulated signal;
- acquire a signal correction amount and/or an error rate;
- and
- control the light source in order to adjust an output intensity of the local light based on the signal correction amount and/or the error rate.
A local light control method for a receiving device, the local light control method comprising:
- causing, by a processor of the receiving device, local light to interfere with a received signal to acquire an optical signal;
- converting, by the processor, the optical signal into an electrical signal;
- demodulating, by the processor, the electrical signal to acquire a demodulated signal;
- correcting, by the processor, an error of the demodulated signal;
- acquiring, by the processor, a signal correction amount and/or an error rate during correcting the error;
- and
- adjusting, by the processor, an output intensity of the local light based on the signal correction amount and/or the error rate.
Dependencies are inferred from the claim text.