ABB+SCYC51090 58053899E

Analog transmission is a method of transmitting sound, data, images, signals, or video information using a continuous signal that varies proportionally to a variable in amplitude, phase, or some other property. This information is either represented by a pulse train to the line code (baseband broadcasting) or by a limited set of continuously varying waveforms (passband broadcasting), digitally adjusted; Adjust the method. Passband modulation and corresponding detection are performed by the following personnel on the modem device. According to the most common definition, both baseband and passband signals representing a bit stream are considered digital transmissions, while another definition treats only the baseband signal as a digital signal and treats the passband transmission of digital data as a digital-to-analog conversion.

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SCYC51090 58053899E ABB regards passband transmission of digital data as digital-to-analog conversion

SCYC51090 58053899E Data transmission and data reception or, more broadly, data communication or digital communication is the transmission and reception of data in the form of a digital bitstream or a digitized analog signal [1] transmitted over a cross-country racing or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibers, wireless communications using the radio frequency spectrum, storage media, and computer buses. The data is represented as an electromagnetic signal, such as a voltage, radio wave, microwave, or infrared signal.

The data transmitted by the SCYC51090 58053899E can be digital messages originating from a data source, such as a computer or keyboard. It can also be an analog signal, such as a telephone call or a video signal, that is digitally converted into a stream of bits, for example, using pulse code modulation or more advanced source coding schemes. This source encoding and decoding is done by a multimedia digital signal codec device.

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