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Mobile Tech Glossary

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- Cameraphone - A mobile phone with a built-in camera. Usually the phone has MMS messaging functionality. ...

- carrier - Carrier is a term commonly used in the United States and Canada to refer to a company that provides voice or data services. Carriers can be companies that operate wirelessly or over traditional wired...

- Carrier Signal - A signal transmitted at a pre-determined frequency to act as a "carrier" for voice or data. The carrier signal is modulated by voice or data input so as to "carry" the information to its destination w...

- CCD - A CCD is a type of image sensor used in digital cameras. When speaking of low cost devices, CCD image sensors tend to provide better image quality than comparable CMOS models, though they require mor...

- CDMA - CDMA stands for code division multiple access, a form of multiplexing that is based on mathematics rather than time slicing (used by TDMA) or frequency hopping. The term is commonly used to refer to ...

- CE Mark - The CE Marking is the manufacturer's declaration, showing compliance with all applicable directives. Mandatory for most products sold in the EU. With the exception of some high-risk products, most pro...

- Cell - The basic geographical unit of a cellular communications system. Service coverage of a given area is based on an interlocking network of cells, each with a radio base station (transmitter/receiver) at...

- Cellular - Circuit-switched voice telephone communications via cellular radio channels. The service area is divided into many cells and in each there is a base station handling the communications in that particu...

- Character recognition - Converts hand-drawn symbols to digital format and then to alphanumeric characters. ...

- Chip - In the context of CDMA, a chip is distinct from a bit (binary digits transmitted over the RF link). Each bit is represented by many chips, and if a majority of the chips get through then the bit can b...


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