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digital signal

Discrete signal that can take on only one of two discrete levels in contrast to analog signals, which can take a continuous range of levels Voice and data are converted into streams of 1’s and 0’s Data communication is easier and quicker with digital systems

A discrete signal which can only take on one of several (usually only two) discrete levels in contrast to analog signals which can take a continuous range of levels

A signal that represents information by a series of fixed, encoded, rectangular pulses, usually consisting of two possible voltage levels Each voltage level indicates one of two possible values or logic states, such as on or off, open or closed, or true or false See Digital, above

A discrete or discontinuous signal; often one whose various states are discrete intervals apart

A signal that is composed of two energy levels (on and off or positive and negative current) Digital signals are used by computers to transmit data The pattern of the energy-level change represents individual bits of information

A discontinuous signal One whose state consists of discrete elements, representing very specific information, usually on or off, one or zero

A signal which communicates or controls by a series of electronic pulses ("on" or "off" or "high" or "low") which can be translated at the receiving end into useful information

A nominally discontinuous electrical signal that changes from one state to another in discrete steps Typically, information is represented by "0's and 1's"

Signal represented by a sequence of binary bits representing ones and zeros

is a function in which both time and amplitude are quantized

– (1) Signal in which one of a discrete (countable) set of values can be encoded by modulating one or more carrier wave parameters (2) Synonym of binary signal

A signal that has a limited number of discrete states prior to transmission This may be contrasted with an analog signal which varies in a continuous manner and may be said to have an infinite number of states

  A signal in which discrete steps are used to represent information   (188)  Note 1:   In a digital signal, the discrete steps may be further characterized by signal elements, such as significant conditions, significant instants, and transitions   Note 2: Digital signals contain m-ary significant conditions

French: signal numérique A discrete or discontinuous electrical signal made up of a series of on and off pulses

a stream of 0's and 1's

The transmission method for sending voice, data, image or video by translating the information to binary code

A signal that is composed of two energy levels (on and off) Digital signals are used by computers to transmit data The pattern of the level changes represents individual bits of information

A digital signal is a signal (electrical or otherwise) in which information is carried in a limited number of different (two or more) discrete states The most fundamental and widely used form of the digital signal is binary, in which one amplitude condition represents a binary

A digital signal is one whose key characteristic (e g , voltage or current) fall into discrete ranges of values The interpretation of an analog signal would correspond to a signal whose key characteristic would be a continuous signal Most digital systems utilize two voltage levels Systems with more than two levels include MIL-STD-1553 busses There are three ranges defined (with several keep out zones) The newer flash memory devices utilize four levels for storage, doubling the bit density to two bits per cell

Digitized sound data, like other data, can be loaded into the computer's memory and manipulated by software, sound editing software can changed a sound's volume and pitch, add special effects like echoes, remove extraneous noises, even rearrange musical passages To play a digitized sound, the computer must load the data file into memory, convert it to an analog sound, and play it through a speaker Submitter: Jin Xu Go to the Glossary Index Computers and Sound Page Audio Page Flash: Audio Movie 1 Flash: Audio Movie 2 Flash: Sound Movie

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