Title:
CABLE SIGNAL COUPLING SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/147192
Kind Code:
A1
Abstract:
Disclosed in the present invention are a cable signal coupling system and method. The system comprises: a direct-current power transmission system circuit, a signal modulation coupling circuit, and a signal demodulation circuit; wherein the signal modulation coupling circuit is used for performing processing and modulating on a system baseband signal, generating a high-frequency carrier signal, and loading the high-frequency carrier signal to a direct-current power transmission wire of the direct-current power transmission system circuit so as to transmit the high-frequency carrier signal to the signal demodulation circuit by means of the direct-current power transmission wire; and the signal demodulation circuit is used for performing frequency division filtering on the high-frequency carrier signal transmitted by the direct-current power transmission wire to obtain a filtering signal, performing reduction processing on the filtering signal to obtain a reduced baseband signal, and outputting the reduced baseband signal. According to the present invention, the high-frequency carrier signal is directly transmitted by adopting the direct-current power transmission wire, so that the costs of repeatedly constructing a signal transmission channel are saved, and the construction costs of a communication channel are reduced.
Inventors:
CHEN YANDONG (CN)
XIE ZHIWEI (CN)
WU WENHUA (CN)
HE ZHIXING (CN)
XU QIANMING (CN)
ZHOU LEMING (CN)
DAI YUXING (CN)
OUYANG HONGLIN (CN)
XIE ZHIWEI (CN)
WU WENHUA (CN)
HE ZHIXING (CN)
XU QIANMING (CN)
ZHOU LEMING (CN)
DAI YUXING (CN)
OUYANG HONGLIN (CN)
Application Number:
PCT/CN2019/079244
Publication Date:
July 23, 2020
Filing Date:
March 22, 2019
Export Citation:
Assignee:
GUANGDONG ZHICHENG CHAMPION GROUP CO LTD (CN)
International Classes:
H04B3/56
Foreign References:
| CN109495137A | 2019-03-19 | |||
| CN103929217A | 2014-07-16 | |||
| US20140269953A1 | 2014-09-18 | |||
| CN101951279A | 2011-01-19 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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