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Passive visual card and working method thereof

A passive visual card and security chip technology, which is applied in the protection of record carriers, instruments, and internal/peripheral computer components used in machines, and can solve problems such as life limitation and lack of display function.

Pending Publication Date: 2020-10-20
衡水海博云科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most passive cards on the market do not have display functions
Most of the card products with display function have batteries, and there is a certain life limit

Method used

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  • Passive visual card and working method thereof
  • Passive visual card and working method thereof
  • Passive visual card and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 , 2 As shown, this passive video card includes: radio frequency antenna, 7816 gold finger interface, security chip, EPD break code screen, rectification and voltage stabilization circuit;

[0016] The RF antenna supplies power to the security chip and the EPD code breaking screen through the rectification and voltage stabilization circuit;

[0017] The radio frequency antenna communicates with the security chip through NFC, the security chip drives the EPD code breaking screen through the IO interface, and the power port of the 7816 golden finger interface is connected to the EPD code breaking screen.

[0018] The radio frequency antenna of the present invention supplies power to the safety chip and the EPD code breaking screen through the rectification and voltage stabilization circuit, so it has no battery itself and can obtain energy from the outside through the radio frequency antenna, thus solving the limitation of service life; the radio frequenc...

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Abstract

The invention provides a passive visual card and a working method. The limitation of the service life is solved, a display function is achieved, and the transaction amount and the remaining amount canbe seen in a transaction process. The passive visual card comprises a radio frequency antenna, a 7816 golden finger interface, a safety chip, an EPD code breaking screen and a rectification voltage stabilizing circuit. The radio frequency antenna supplies power to the safety chip and the EPD broken code screen through the rectification voltage stabilizing circuit. The radio frequency antenna is in NFC communication with the safety chip, the safety chip drives the EPD broken code screen through the IO interface, and a power port of the 7816 golden finger interface is connected with the EPD broken code screen.

Description

technical field [0001] The present invention relates to the technical field of integrated circuits, in particular to a passive video card and a working method of the passive video card. amount and the remaining amount. Background technique [0002] Passive card is a kind of IC (Integrated Circuit Card, integrated circuit card) card, which means that the card itself has no battery, and must obtain energy from the card reader (through electrode contact or electromagnetic induction) to communicate with the card reader. exchange. Using radio frequency identification technology (RFID—Radio Frequency Identification), also known as passive radio frequency card. [0003] Most passive cards on the market do not have a display function. Most of the card products with display function have batteries, and there is a certain life limit. Contents of the invention [0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention i...

Claims

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Application Information

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IPC IPC(8): G06K19/077G06K19/073G06K19/07G06F21/77
CPCG06K19/07707G06K19/07745G06K19/07773G06K19/0701G06K19/073G06F21/77
Inventor 焦旭成刘国徐正高
Owner 衡水海博云科技有限公司