More about phone (291)

1-01-2002 | The Short Message System (SMS) of a standard mobile phone can be used for much more than just exchanging cryptic messages. This application...

1-01-2001 | The introduction of Third Generation mobile phones will offer vastly increased data capacity ensuring the proliferation of mobile Internet u...

1-12-2000 | The frequency allocation sell off for the next generation of mobile phones caused a stir this April when the U.K. government scooped £22.48...

1-09-2000 | Those small indicators that either flash or vibrate when there is a mobile phone call are well known by now. But how can they monitor the ac...

1-07-2000 | The signal from a microphone is two weak for a standard line input. This low-noise DC-coupled microphone amplifier provides a solution for a...

1-07-2000 | If you ever look at construction notes for building old detector type radios the type of headphones specified always have an impedance of 2...

1-04-2000 | It’s often the small, everyday things that turn out to have interesting features when you examine them more closely. In any case, here you c...

1-11-1999 | Since the early 1990s, it has been possible to interconnect a television receiver with the telephone system to provide a user interactive...

1-04-1999 | Although the adverts would have you think that you can use your mobile phone absolutely everywhere, probably every owner of a GSM phone...

1-01-1999 | Proliferation of mobile phones is already a fact, but worldwide mobile telephone communication has become possible only with the advent...