The interval required for a system or circuit to change a specified fraction from one state or condition to another.
Note 1: The time constant is used in the expression where A(t) is the value of the state at time t, A(0) is the value of the state at time t = 0, a is the time constant, and t… (Read More →)

Transmission in which signals representing the same information are sent over the same channel at different times.
Note: Time diversity is often used over systems subject to burst error conditions, and at intervals adjusted to be longer than an error burst.

See time-division multiplexing.

A time interval left vacant on a channel to provide a margin of safety against intersymbol interference in the time domain between sequential operations, such as detection, integration, differentiation, transmission, encoding, decoding, or switching.

The fluctuation of the time interval error caused by the instability of a real clock.

1. The time difference between a real clock and an ideal uniform time scale, after a time interval following perfect synchronization between the clock and the scale.
2. The variation in time delay of a given timing signal with respect to an ideal timing signal over a particular time period. [T1.101-1987]

Short-term variation or instability in the duration of a specified time interval.

A reference signal, often repeated periodically, enabling the correlation of specific events with a time scale, such as for establishing synchronization.

The date of an event, i.e., the instant an event occurs, with reference to a specified time scale.

1. A time measuring system defined to relate the passage of temporal events since a selected epoch.
Note: The internationally recognized time interval is the second. Time scales are graduated in intervals such as seconds, minutes, hours, days, and years, and in fractions of a second, such as milliseconds, nanoseconds, and picoseconds.
2. Time coordinates placed on the abscissa (x-axis)… (Read More →)