How Do Cell Phones Work?

With worldwide mobile subscriptions estimated to be around 7 billion in 2014, cell phones have become a universal and indispensable tool for modern life. With a cell phone, you can talk to anybody on the planet from almost anywhere. But do you really know how your cell phone works?

In the most basic form, a cell phone is essentially a two-way radio, consisting of a radio transmitter and a radio receiver. When you chat with your friend on your cell phone, your phone converts your voice into an electrical signal, which is then transmitted via radio waves to the nearest cell tower. The network of cell towers then relays the radio wave to your friend’s cell phone, which converts it to an electrical signal and then back to sound again. In the basic form, a cell phone works just like a walkie-talkie.

In additional to the basic function of voice calls, most modern cell phones come with additional functions such as web surfing, taking pictures, playing games, sending text messages and playing music. More sophisticated smart phones can perform similar functions of a portable computer.

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What Makes a Pong Case Intelligent?

Your mobile phone is smart. Now the case for your mobile device can be, too.

Pong Research introduces the world’s first Intelligent Case. The Pong Case pairs with your device to redirect wireless energy for optimized protection and performance.

All mobile devices use radio-frequency (RF) electromagnetic waves to communicate. The devices contain antennas to transmit and receive wireless signals. Unlike traditional cases, the Pong case is embedded with a custom-engineered antenna system that passively interacts with your device when you snap it on. Specifically, copper elements plated in gold, yet thinner than a human hair, are precisely engineered in size, shape and location, to achieve optimum coupling with the mobile device’s own antenna. Pong’s built-in antenna technology reshapes the electromagnetic field pattern of your device’s transmitted signal and directs wireless energy away from you while optimizing your device’s outbound signal.

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