Signal processing apparatus for use in optical communication

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12224767
APP PUB NO 20230188155A1
SERIAL NO

18167380

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Abstract

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A signal processing apparatus includes a plurality of time-interleaving digital-to-analog converters each configured to sample a digital input signal at a preset sub-DAC sample frequency, and to generate an analog sub-DAC output signal. The signal processing apparatus includes analog multiplexer that samples the plurality of sub-DAC output signals at a preset multiplexer clock frequency and generates a multiplexer output signal. The signal processing apparatus further includes a local ADC that receives the multiplexer output signal and generate a digital feedback signal. The signal processing apparatus further includes a digital compensation engine that receives the digital feedback signal from the local ADC and determine one or more distortion compensation parameters. The signal processing apparatus further includes a digital pre-processing stage that receives the one or more distortion compensation parameters from the digital compensation engine and performs distortion compensation pre-processing on the digital input signal.

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Patent Owner(s)

  • HUAWEI TECHNOLOGIES CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cherenkov, Artem Vitalyevich Moscow, RU 1 0
Linnik, Mikhail Alexandrovich Moscow, RU 1 0
Wang, Yijie Chengdu, CN 28 219
Zhao, Man Chengdu, CN 8 1

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