Title:
NFC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/140957
Kind Code:
A1
Abstract:
Provided is an NFC device. The NFC device comprises a filtering circuit, a matching circuit, data-receiving branches, an NFC controller and an NFC antenna, and further comprises a self-capacitance measurement module, wherein a capacitance measurement end of the self-capacitance measurement module is connected to a positive phase end or a reverse phase end of the NFC antenna, and the self-capacitance measurement module is used for measuring the amount of capacitance change of the NFC antenna. The NFC device of the present application can implement the detection of a target device by using relatively little power consumption.
Inventors:
YUAN GUANGKAI (CN)
Application Number:
PCT/CN2020/140305
Publication Date:
July 07, 2022
Filing Date:
December 28, 2020
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G06K7/00
Domestic Patent References:
| WO2020047844A1 | 2020-03-12 |
Foreign References:
| CN111934725A | 2020-11-13 | |||
| CN104167592A | 2014-11-26 | |||
| CN210744172U | 2020-06-12 | |||
| CN107579754A | 2018-01-12 | |||
| US20190312361A1 | 2019-10-10 | |||
| US20160345123A1 | 2016-11-24 |
Attorney, Agent or Firm:
UNI-INTEL PATENT AND TRADEMARK LAW FIRM (CN)
Download PDF: