Time-sequential lighting control method of smart card and smart card
A timing control circuit and smart card technology, applied in the field of smart cards, can solve the problems affecting the display function of the luminous smart card, and achieve the effect of enhancing the data display function
Active Publication Date: 2022-04-05
ESIM TECH LTD
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- Description
- Claims
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Problems solved by technology
However, the existing smart cards cannot control the lighting sequence, power supply, flash frequency, color and brightness of multiple light sources in the card, which affects the display function of the light-emitting smart card.
Method used
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0028] The terms "comprising" and "having" and any variations thereof in the specification and claims of the present invention and the above drawings are intended to cover non-exclusive inclusion, and the terms "first" and "second" are only used for distinguishing names , does not represent the size or ordering of numbers. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units...
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The invention discloses a luminous smart card timing control method and the smart card, wherein the method includes the following steps: when the luminous timing control circuit performs read and write operations between the smart card and the wireless smart card reader, the antenna senses the radio wave sent by the smart card reader to obtain electric energy , based on the electric energy to drive the card to work; when working, use the control logic contained in the timing control circuit to control each light source of the light-emitting device on the smart card to emit light according to the preset timing, and the timing switches the light-emitting state of the light source in units of several clock cycles. The luminous state of the light source includes: the luminous duration, luminous color, blinking frequency and luminous brightness of different luminous light sources. By adopting the invention, while ensuring the original data reading and writing function of the light-emitting smart card, the light-emitting timing of the light-emitting device on the card is controlled, and the data display function of the light-emitting smart card can be enhanced.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a time sequence light emitting control method of a smart card and the smart card. Background technique [0002] Smart cards, also known as IC cards, smart cards, microchip cards, etc., are embedded in a dedicated integrated circuit chip in a PVC (or ABS, etc.) , and can also be packaged into special shapes such as buttons, keys, and ornaments. The current smart card can realize data interaction with the RFID radio frequency card reader by adding an induction coil and a related wireless signal modulation circuit, which is called an RFID smart card. This kind of RFID smart card generally does not have a battery itself, and relies on the electromagnetic energy sent by the card reader to work. Its structure is simple, economical and practical, so it has been widely used. The passive RFID tag is composed of RFID IC, resonant capacitor C and antenna L. The antenna and capacitor f...
Claims
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IPC IPC(8): H05B45/30H05B45/20H05B45/10G06K19/07
CPCY02B20/40H05B45/10G06K19/07H05B45/30H05B45/20
Inventor 苏爱民
Owner ESIM TECH LTD