Title:
RADIO FREQUENCY IDENTIFICATION CIRCUIT AND CONTACT-LESS IC CARD ANTI-THEFT DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/052285
Kind Code:
A1
Abstract:
The present invention relates to the technical field of smart card theft prevention, relating in particular to a radio frequency identification circuit and a contact-less IC card anti-theft device; the radio frequency identification circuit comprises a radio frequency signal receiving unit that is used to receive a radio frequency read signal of an NFC read device and convert same into a sensing current, a rectification unit used for half-wave rectification and an interference signal producing unit used to produce and emit a radio frequency interference signal. The radio frequency identification circuit of the present invention has a simple structure and is low-cost; and a contact-less IC card anti-theft device composed of the described radio frequency identification circuit may effectively prevent criminals from stealing information within a card by means of an NFC read device when the contact-less IC card is not being used.
Inventors:
LI WENCHANG (CN)
Application Number:
PCT/CN2019/090042
Publication Date:
March 19, 2020
Filing Date:
June 05, 2019
Export Citation:
Assignee:
LI WENCHANG (CN)
International Classes:
G06K19/073
Foreign References:
| CN109325577A | 2019-02-12 | |||
| CN104156754A | 2014-11-19 | |||
| CN204129763U | 2015-01-28 | |||
| US20090174556A1 | 2009-07-09 | |||
| CN101042741A | 2007-09-26 |
Attorney, Agent or Firm:
WISE &PARTNER (CN)
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