En binare signale
In en binare signale electronics a digital signal is a pulse train a pulse amplitude modulated signali. In most digital circuitsthe signal can have two possible values; this is called a binary signal or logic signal. However, asynchronous logic also exists, which uses no single clock, en binare signale generally operates more quickly, and may use less power, but is significantly harder to design.
Logic changes are triggered either by the rising edge or the falling edge. For a broader coverage related to en binare signale topic, see Signal electrical engineering. This page was last edited on 2 Aprilat
The image shown can be considered the waveform of a clock signal. Because of this discretizationrelatively small changes to the analog signal levels do en binare signale leave en binare signale discrete envelope, and as a result are ignored by signal state sensing circuitry. A digital signal is a sequence or list of numbers drawn from a finite set. The two states of a wire are usually represented by some measurement of an electrical property: Carrier-suppressed return-to-zero Alternate-phase return-to-zero.
This process is the basis of synchronous logicand the system is also used in digital signal processing. A digital signal is a special en binare signale of discrete-time signal which is discrete in both time and amplitude, obtained by permitting each value sample of a discrete-time signal to acquire a finite set of values quantizationassigning it a numerical en binare signale according to a code The signal's value only exists at regular time intervals, since only the values of the corresponding physical signal at those sampled moments are significant for further digital processing. In a digital signal, the physical quantity representing en binare signale information may be a variable electric current or voltage, the intensity, phase or polarization of an optical or other electromagnetic fieldacoustic pressure, the magnetization of a magnetic storage media, etcetera. Digital signal signal processing.
The shape of the waveform depends the transmission scheme, which may be either:. Computer hardware Digital audio radio Digital photography Digital telephone Digital video cinema television Electronic literature. The signal's value only exists at regular time intervals, en binare signale only the values of the corresponding physical signal at those sampled moments are significant for further digital processing. Simple digital signals represent information in discrete bands of analog levels. To create a digital signal, an en binare signale signal must be modulated with a control signal to produce it.
Space-division Frequency-division Time-division Polarization-division Orbital angular-momentum Code-division. Voltage is the most common, but current is used in some logic families. Digital signal electronics Boolean algebra Logic synthesis Logic in computer science Computer architecture Digital signal signal processing Digital signal processing Circuit minimization Switching circuit theory. In a digital signal, the physical quantity representing the information may be a variable electric current or voltage, the intensity, phase or polarization of an optical or other electromagnetic fieldacoustic pressure, the magnetization of a magnetic storage media, etcetera.
For example, signals that can assume three possible states are called three-valued logic. Logic synthesis Register-transfer level Formal equivalence checking Synchronous logic Asynchronous logic Finite-state machine. Digital signal signal processing.