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Mobile Tech Glossary

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- depth of field - Depth of field refers to the range of distances before and beyond the lens' focal point that are still sharp. A wide angle lens offers more depth of field than does a telephoto lens when focused at t...

- Digital - The newest form of wireless communications that takes all voice transmissions and converts them to binary data, then reconstructs them into the original voice format at the receiving end. More secure ...

- digital zoom - Digital zoom is a software based method of approximating a telephoto lens on a camera. This is done through systems such as pixel doubling that merely make each pixel in an image larger to increase t...

- Direct Push - Direct Push is Microsoft's Push Email system for pushing email, contacts, appointments, and tasks to a mobile device in real time.br/br/ br/br/ ...

- DMB - DMB stands for Digital Multimedia Broadcasting and is a suite of systems used to send television and similar media programming over the air to mobile devices. S-DMB is a version that makes use of sat...

- Docking cradle - A device used to connect a handheld to a PC for synchronization and application downloads. The two are connected via the handheld's communication port using a serial or USB cable. The cradle often dou...

- downlink - The downlink part of a network connection on a mobile device is used to receive, or download, data to the mobile device from the remote server. The uplink connection is used to send data from the mob...

- Dropped Call - A wireless call that is unintentionally disconnected due to a system problem, lack of channel availability or dead spot in coverage. ...

- DSL - DSL is a group of networking technologies that allow for WAN connections over existing telephone network wires. Originally short for Digital Subscriber Loop, DSL is more commonly referred to today as...

- dual-band - Dual-band refers to a device's ability to function on two different frequency bands. Many CDMA devices sold in North America are dual-band capable. Dual-band CDMA devices tend to offer better roamin...


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