Glossary terms beginning with D

D AMPS

Also known as: Digital Advanced Mobile Phone Service, DAMPS Digital Advanced Mobile Phone Service (DAMPS or D-AMPS) is a second generation, digital version of the AMPS (Advanced Mobile Phone Service) cellular telephone system. DAMPS was developed…

DAMPS

Also known as: D-AMPS, Digital Advanced Mobile Phone Service Digital Advanced Mobile Phone Service (DAMPS or D-AMPS) is a second generation, digital version of the AMPS (Advanced Mobile Phone Service) cellular telephone system. DAMPS was developed…

Data Synchronisation

Data synchronisation is the process of updating data over a network. Data Synchronization often applies to data stored on a mobile device. Data Synchronisation works two ways-you can either update data stored on a mobile device,…

dB

Also known as: Decibel Decibel (dB) is a unit of measurement based on the logarithmic scale. Decibels are used to define an increase or decrease in the power of sounds and electrical signals, and the term…

Decibel

Also known as: dB Decibel (dB) is a unit of measurement based on the logarithmic scale. Decibels are used to define an increase or decrease in the power of sounds and electrical signals, and the term…

Defence Evaluation and Research Agency

Also known as: DERA Defence Evaluation and Research Agency (DERA) separated into two organisations on 2 July 2001. As a result of this reorganisation a new company QinetiQ was formed, whose business includes the field of…

DERA

Also known as: Defence Evaluation and Research Agency Defence Evaluation and Research Agency (DERA) separated into two organisations on 2 July 2001. As a result of this reorganisation a new company QinetiQ was formed, whose business…

Digital Advanced Mobile Phone Service

Also known as: D-AMPS, DAMPS Digital Advanced Mobile Phone Service (DAMPS or D-AMPS) is a second generation, digital version of the AMPS (Advanced Mobile Phone Service) cellular telephone system. DAMPS was developed in the USA, and…

Dots per Inch

Also known as: dpi dpi (Dots per Inch) is a measure of a display screen's resolution or sharpness, which indicates its ability to present images of a given quality. The higher the dpi, the more dots…

Double cell Super Twisted Nematic

Double-cell Super Twisted Nematic displaysenhance the STN LCD by placing cells on top of each other. This offers a true black and white display instead of the near-black and near-white levels typically found in standard…

Downlink

Also known as: Forward Link Downlink (Forward Link) is the term used to describe the direction of data transmissions from the network BS (Base Station) to the subscriber's MS (Mobile Station). Uplink (Reverse Link) is the…

dpi

Also known as: Dots per Inch dpi (Dots per Inch) is a measure of a display screen's resolution or sharpness, which indicates its ability to present images of a given quality. The higher the dpi, the…

Drawing area

Drawing area is the section of a phone's screen that is used for the drawing and displaying of logos. It's usuallybetween signal and battery strength bars, and below the clock, although the exact layout varies from…

DSTN

DSTN is the abbreviation of Dual Scan Super-Twisted Nematic and should not be confused with the old Double Layer STN. This technique is almost equal to STN, but a DSTN display is cut in two. …

DTMF

Also known as: Dual Tone Multi-Frequency Dual Tone Multi-Frequency (DTMF), also known as 'Touchtone', is the type of signalling now used by all modern telephony equipment. DTMF is the name given to the system of audible…

Dual band

A mobile phone that supports Dual band can work with both the GSM900, as with the GSM1800 network. With a dual band mobile phone phone calls can be made in a large part of the world,…

Dual mode

dual mode

Dual scan Super Twisted Nematic

Dual-scan Super Twisted Nematic displays are an improved version of the basic STN LCD. They are formed by placing two displays next to each other and scanning each as a separate entity (hence dual-scan) which…

Dual Tone Multi Frequency

Also known as: DTMF Dual Tone Multi-Frequency (DTMF), also known as 'Touchtone', is the type of signalling now used by all modern telephony equipment. DTMF is the name given to the system of audible tones generated…

Dual Voltage Reduced Size MMC memory card

This memory card is a special type of Flash memory that has similarities with a MMC memory card. The only difference is that the MMC memory card is half the size of this this type of…

Dynamic font size

Dynamic font size means that multiple fonts can be chosen from. …

Dynamic memory

Dynamic memory means that the available memory is used by multiple applications of the mobile phone. When an application is used, less memory becomes available for other functions that are also depending on the dynamic…