Title:
SYSTEMS AND DEVICES FOR POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2020/253208
Kind Code:
A1
Abstract:
A power sourcing equipment is provided. The power sourcing equipment may include an input terminal, an output terminal, a switch, and a device detection circuit. The input terminal may receive a power signal. The output terminal may be electrically coupled to a powered device via a coaxial cable, which transmits the power signal from the power sourcing equipment to the powered device or a data signal from the powered device to the power sourcing equipment. The switch may control an electrical connection between the input and output terminal (s). The device detection circuit may detect whether the data signal is being transmitted from the powered device to the power sourcing equipment. If the data signal is not being transmitted from the powered device to the power sourcing equipment, the device detection circuit may control an operation of the switch based on an electrical parameter associated with the powered device.
Inventors:
ZHU HAIGANG (CN)
LI DEWU (CN)
FANG WEI (CN)
YANG YINCHANG (CN)
LI DEWU (CN)
FANG WEI (CN)
YANG YINCHANG (CN)
Application Number:
PCT/CN2019/129750
Publication Date:
December 24, 2020
Filing Date:
December 30, 2019
Export Citation:
Assignee:
ZHEJIANG DAHUA TECHNOLOGY CO (CN)
International Classes:
H02J1/00; H04L12/10; H04N5/00
Foreign References:
| CN107333085A | 2017-11-07 | |||
| JP2005159554A | 2005-06-16 | |||
| CN207677885U | 2018-07-31 | |||
| CN207399229U | 2018-05-22 | |||
| CN202111717U | 2012-01-11 | |||
| CN110323739A | 2019-10-11 |
Other References:
See also references of EP 3928404A4
Attorney, Agent or Firm:
METIS IP (CHENGDU) LLC (CN)
Download PDF:
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