In smart systems, sensors play an important role because they form the link between mechanical and electronic systems. Magnetic sensors are widely used to measure mechanical quantities because they allow contact-less and, therefore, wear-free measurements. In particular, magnetoresistive sensors can.....
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SMS (Short Message Service) provides direct and instant communication among mobile phone users and has become an extremely popular communication tool nowadays. However, during the transmission of SMS, the message could be logged by the service provider or eavesdropped by a third party. An SMS mess.....
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The invention concerns a method and apparatus for controlling the output phase of a voltage controlled oscillator (VCO) for use in antenna arrays for receiving radio signals. Such arrays can converge energy, receive signals, and reject interference. Beam-forming techniques using phase shifters are u.....
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