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this is a source code for usinf sd card with PIC
Read and write mifare card using smartcard API in Java 6.
This is a document which descibes about EMV smart card payment
DRM(Digital Radio Mondiale)系统采用OFDM调制方式， 引入了先进的信源信道编码和调制技术，使得AM波段的音频广播质量大大提高，在保持现有10kHz带宽时接近了FM广播的质量[5]
<Simulation and Software Radio for Mobile Communications>的源代码
中国EPC标准草案（基本上是EPC C1G2的中文翻译） 射频识别协议- 第1类第2代UHF RFID 860兆赫-960兆赫通讯协议 EPC™ Radio-Frequency Identity Protocols ...
For USB program, low pass filter for audio,Audio low-frequency Pass filter.
The LM158 series consists of two independent, high gain, internally frequency compensated operational amplifiers whi...
This code is used for modeling frequency response and phase change of accelerometer.