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Control area network (CAN) is an international protocol of field bus and universal serial bus (USB) is developing more and more widely. On the other hand, the USB technology combined with the CAN application is still in the development stage, so this research has broad prospects. The USB-based CAN bus system hardware consists of a CAN module, a USB communication module and a micro controller. It has been designed for real-time display and can save the CAN bus message. In addition it has been debugged in actual measurement accompanied by the Kvaser USB CAN II. The test results show that the system can correctly receive all messages frame from Kvaser CanKing. Finally the system has been applied to the project of citrus orchard for transmission of data of the citrus and tree parameters. [ABSTRACT FROM AUTHOR]

In this paper, we developed a digital auscultation system which provides a useful tool for users to measure the heart sounds and to see the waveform of sounds such as phonocardiogram. This system includes an ARM-based digital stethoscope with a USB port for data transmission and a PC-based graphic user interface for waveform and heart rate display and data recording. The functions of this digital stethoscope include play back, filtering, volume adjustment of sounds, and data transmission. Besides, the digital stethoscope can measure the sounds and then forward the data to the PC via the USB interface. On the PC, user can easy to see the waveform of sounds on the graphic user interface. For heart sounds measurement, we also implemented a heart rate detection algorithm so that heart rate can also be shown on the graphic user interface. This system would be useful for aiding the auscultation diagnosis and telemedicine applications. [ABSTRACT FROM AUTHOR]

The current Internet threat environment is characterized by an increase in data theft, data leakage, and the creation of targeted, malicious code for the purpose of stealing confidential information that can be used for financial gain. This paper focuses on protecting sensitive files from getting accidently leaked out of a system through unauthorized USB devices. We propose a hardware architecture guaranteeing USB-based data leakage prevention. The prototype board connected to a USB host system intercepts and analyzes USB data transferred to a USB device. This approach provides flexible security enforcement policies including alerting and real-time blocking. [ABSTRACT FROM AUTHOR]