Signal transition: In the modulation of a carrier, a change from one significant condition to another.
Note 1: Examples of signal transitions are a change from one electrical current, voltage, or power level to another; a change Signal transition from one optical power level to another; a phase shift; or a change from one frequency or wavelength to another.
Note 2: Signal transitions are used to create signals that represent information, such as "0" and "1" or "mark" and "space."
Source: from Federal Standard 1037C
Electronics Topics
The field of electronics is the study and use of systems that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves and semiconductors. The design and construction of electronic circuits to solve practical problems is part of the fields of electronic engineering, and the hardware design side of computer engineering. The study of new semiconductor devices and their technology is sometimes considered as a branch of physics.
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