US 11,700,064 B2
Signal processing apparatus and signal processing method
Jing Suo, Dongguan (CN); and Xiaolu Song, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jan. 26, 2022, as Appl. No. 17/584,725.
Application 17/584,725 is a continuation of application No. PCT/CN2020/082966, filed on Apr. 2, 2020.
Claims priority of application No. 201910684048.1 (CN), filed on Jul. 26, 2019.
Prior Publication US 2022/0149949 A1, May 12, 2022
Int. Cl. H04B 10/04 (2006.01); H04B 10/508 (2013.01); H04B 10/50 (2013.01); H04B 10/61 (2013.01); H04J 14/02 (2006.01)
CPC H04B 10/508 (2013.01) [H04B 10/503 (2013.01); H04B 10/506 (2013.01); H04B 10/614 (2013.01); H04J 14/0205 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A signal processing apparatus, comprising a sampling unit, a beam combiner, and an optical resonator, wherein:
the sampling unit is connected to the beam combiner, and the beam combiner is connected to the optical resonator;
the sampling unit is configured to sample an analog signal by using an optical pulse signal to output a sampled optical pulse signal;
the beam combiner is configured to combine the sampled optical pulse signal and a multi-wavelength optical signal into a first optical signal; and
the optical resonator is configured to perform resonance based on the first optical signal to output a second optical signal in the first optical signal, wherein a wavelength of the second optical signal is equal to a resonant wavelength of the optical resonator.