AOSS

Abstract: In this paper, we used the hand held type a Nintendo DS Game Machine for consisting of a u-Health Monitoring system. This system is consists of four parts. Biosignal acquire device is the first. The Second is a wireless sensor network device. The third is a wireless base-station for connecting internet network. Displaying units are the last part which were a personal computer and a Nintendo DS game machine. The bio-signal measurement device among the four parts the u-health monitoring system can acquire 7-channels data which have 3-channels ECG(Electrocardiogram), 3-axis accelerometer and tilting sensor data. Acquired data connect up the internet network throughout the wireless sensor network and a base-station. In the experiment, we concurrently display the bio-signals on to a monitor of personal computer and LCD of a Nintendo DS using wireless internet protocol and those monitoring devices placed off to the one side an office building. The result of the experiment, this proposed system effectively can transmit patient’s biosignal data as a long time and a long distance. This suggestion of the u-health monitoring system need to operate in the ambulance, general hospitals and geriatric institutions as a u-health monitoring device.

Abstract: In this article, we developed an m-health monitoring system using a Nintendo DS game console to demonstrate its utility. The proposed system consists of a biosignal acquisition device, wireless sensor network, base-station for signal reception from the sensor network and signal conversion according to Internet protocol, personal computer display program, and the Nintendo DS game console. The system collects three-channel electrocardiogram (ECG) signals for cardiac abnormality detection and three-axis accelerometer signals for fall detection of a person. The collected signals are then transmitted to the base-station through the wireless sensor network, where they are transformed according to the transmission control protocol/Internet protocol (TCP/IP) and sent to the destination IP through Internet network. To test the developed system, the collected signals were displayed on a computer located in different building through wired Internet network and also simultaneously displayed on the Nintendo DS...

Abstract: Integrated acousto-optic space switch (AOSS) modules, up to 8×8 in size, have been realized using multiple Bragg diffractions on Y-cut LiNbO3 substrates. The integrated AOSS modules consist of a new hybrid beam expanding/collimating lens, a large-aperture focusing lens, and a pair of multielement tilted surface acoustic wave (SAW) transducer arrays in a titanium-indiffused channel-planar-channel composite waveguide. The distinctive traits of the integrated AOSS modules as well as performance parameters such as crosstalk, insertion loss, RF drive power requirement, reconfiguration time and size limitations, are discussed. The experimental results of 4×4 and 8×8 modules are reported. The integrated AOSS modules can also be used in single-wavelength as well as wavelength-division-multiplexed multiwavelength networks involving both star and tree topologies.