Apparatus and method for calibrating communication distance of radio frequency SIM card

A calibration device and radio frequency calibration technology, which is applied in wireless communication, transmission monitoring, instruments, etc., can solve problems such as wrong card reading operation, different shielding effects of mobile phone terminals, affecting the operation of mobile phone cards and card readers, etc., to eliminate signal shielding difference effect

Active Publication Date: 2008-12-24
NATIONZ TECH INC
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 1. For the same card reader or other devices, different mobile terminals such as mobile phones will have different communication distances, which may cause wrong card reading operations;
[0012] 2. Different mobile phone terminals have different shielding effects, which affect the operation of mobile phone cards and card readers

Method used

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  • Apparatus and method for calibrating communication distance of radio frequency SIM card
  • Apparatus and method for calibrating communication distance of radio frequency SIM card
  • Apparatus and method for calibrating communication distance of radio frequency SIM card

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Embodiment Construction

[0040] Further details will be given below in conjunction with the preferred embodiments shown in the accompanying drawings.

[0041] A radio frequency power calibration device 100 for calibrating the radio frequency SIM card 104 short-range wireless communication distance of the present invention, such as figure 2 As shown, the device includes a microcontroller MCU 200 , a radio frequency transmitting and receiving modem 201 , a radio frequency power detection module 202 , an analog-to-digital converter 203 and a radio frequency antenna 204 .

[0042] Such as figure 2 As shown, the microcontroller radio frequency antenna 204 is electrically connected to the radio frequency power detection module 202 and the radio frequency transmitting and receiving modem 201 respectively; the radio frequency power detection module 202 is electrically connected to the analog-to-digital converter 203; the analog-to-digital converter 203 is electrically connected to the corresponding port of...

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Abstract

The invention relates to a device and a method for calibrating the communication distance of a radio frequency SIM card. The device comprises a microcontroller MCU (200), a radio frequency emitting and receiving modulation demodulator (201), a radio frequency power detection module (202), an analog to digital converter (203) and a radio frequency antenna (204). The method comprises the following steps: a calibration value is set on a radio frequency power calibrating device; a radio frequency power calibrator (100) sends an instruction to a radio frequency SIM card (104) and receives power sent from the radio frequency SIM card (104) to compare with the pre-set calibration value; the radio frequency power calibrator (100) sends relevant instructions to the radio frequency SIM card (104) to increase or reduce sending power till the sending power is completely identical with the calibration value according to judging results. By adopting the calibration method, the effect of a mobile terminal on the signal shielding difference of the radio frequency SIM card can be eliminated, so that different mobile terminals have identical card reading distance.

Description

technical field [0001] The present invention relates to a record carrier used together with a machine, in particular to a record carrier with semiconductor circuit elements, especially to a device and method for calibrating the communication distance of a radio frequency SIM card. Background technique [0002] With the development of technology, various intelligent circuit modules can be added to the SIM (Subscriber Identity Model) card body in ordinary mobile phones (hereinafter referred to as "mobile phones") through various methods, so that in addition to basic SIM card functions, There are other functions that are closer to life. By transforming the mobile phone SIM card into a mobile phone SIM card with payment function, the mobile phone can also have various functions such as credit card, small payment, time attendance and so on. The radio frequency SIM card involved in the present invention is exactly the mobile phone card that possesses these functions, and it is a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00G06K7/00
CPCH04W52/04H04W92/08
Inventor 王仁发余运波朱杉
Owner NATIONZ TECH INC
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