ishment of Dedicated Processing on the Mobile Terminal A pilot implementation (at "Transylvania" University of Brasov, Romania- developer A. Gavrila) placed an important part of the processing, by J2ME-Java 2 Mobile Edition (e.g., for devices' bias-point computation), on the mobile phone. Similar approach can involve software development for MS Windows Mobile (with .NET Mobile Web SDK) or for Symbian OS. The local computation of bias-point for the simple circuit with semiconductor diode was implemented. In Figure 12.18 one can see the schematic and, aside, the device's equation 12.2 (see also Figure 12.19) and the circuit's equation 12.3. (12.2) E=U+IR (12.3) Figure 12.20 presents (also on mobile phone's screen) the graphical solution of this transcendent system. The "square snail" iteration for these equations starts from an initial estimation of the bias point at the intersection of circuit's line with the vertical axis, then, itera- tively, current and voltage are fixed for the step from exponential/from line to line/ exponential, respectively. The iteration stops when decimals at preimposed position do not change anymore. 12.3 Service-Based Mobile Tele-Measurement 12.3.1 NI Data Logging and Supervisory Control The Data logging and Supervisory Control module of National Instruments LabVIEW is dedicated to remote control, by networking of devices for the transfer of acquisition (output)/or (input) control data to/from distributed databases [http://www.ni.com/swf/presentation/us/labview/newdsc/) The LabVIEW Shared Variables enable efficient programming of distributed applications [30]-http://zone.ni.com/devzone/cda/tut/p/id/4679. Data can be Tele-Measurement Services for m-Learning N-JFET Drain Voltage The N-JFET is open for: -0,7 V <= U1 <= -0,3 V R = 5, 6 kQ N-JFET 2SK170 The N-JFET DUT accepts voltages inside this limits: -10 V <= U1 <= 0 V 0V <= U2 <= 10 V Results N-JFET results file >> Generated by labVIEW. VI (Virtual Instrument) running on the work bench computer. N-JFET measurement #290 Date: 1/28/06 Loc