Article archive
Design and Implementation of smart cards against DPA attacks
05/03/2013 16:02
With the vigorous development of the personal computer, the impact of the evolution of the Internet and e-commerce, the market for security and privacy protection with strong demand. The notebook battery smart card has a lightweight and security features, secure payment network applications,...
The ultrasonic waves are sound waves of a certain frequency range
04/03/2013 15:07
System work, the microcontroller P1 port output control signal pro clutch drive chip 74HC245 and photoelectric input motor driver chip L298N to control motor movements. When the governor of the need, simply by changing the duty cycle of the PWM wave (in the design generated by the...
Has been described the MIMO signal by frequency
01/03/2013 16:24
Has been described the MIMO signal by frequency, amplitude, and the corresponding phase component definitions, measurement of MIMO signal must conduct accurate and true measurement of the above three signals characteristic components. Further MIMO system is usually based on the received signal...
The prospects for this technology is very broad
28/02/2013 15:37
The prospects for this technology is very broad. Area or pad-limited die, 2.5D package greatly improve resource utilization. By the package wide word I / O replace DDR3, greatly improves the DRAM bandwidth. It can be integrated in a small pin layout can not be ...
the signal level is normalized to a unit
27/02/2013 15:15
If we measure does not change fast signal, we have enough time to be averaged. If noise was random, then each time the number of samples is doubled, the noise will increase the RMS value of the signal will directly increase. Therefore, the signal level is normalized to a unit, the two samples...
Circuit Debug filtering and amplification is performed on the input pulse signal
26/02/2013 22:09
The 4 circuit debugging and noise analysis
Circuit Debug filtering and amplification is performed on the input pulse signal, the commissioning of effect is directly related to the accuracy of the data acquisition. Pass the test can see that there are serious noise Asus laptop battery in the...
The lightning rod actual quoted Ray needles
06/01/2013 11:35
4.1 lightning rod is quoted Ray needle
The lightning rod actual quoted Ray needles. Russia called for "air terminals", the United States and Britain called "conductive needle. Direct lightning strikes lightning protection devices called air terminals, example: compaq laptop battery lightning...
In addition to the collision and speed control processing
04/01/2013 16:36
In addition to the collision and speed control processing, advanced vehicle active safety systems through a variety of sensing systems for car owners driving behavior, monitor tire condition is good or bad, and make a warning action. These safety warning systems including driving hazard warning...
The father of the PC computer IBM ThinkPad series of notebook production
03/01/2013 13:17
ThinkPad
ThinkPad is the most athletic, most business laptops. The father of the PC computer IBM ThinkPad series of notebook production, with its excellent quality, constant innovation, has been leading the development of the notebook industry. Classic design, first-class operating experience,...
The the 4 digital ultrasonic flaw detector major technical problems
31/12/2012 12:59
The the 4 digital ultrasonic flaw detector major technical problems
(1) analog-to-digital converter (ADC) ADC is the only way for the flaw detector ultrasonic signal input into the computer, the laptop battery continuously varying analog signal into a numerical signal.
(2) structure, a full mode...
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