1. The state of being synchronous.
2. For repetitive events with the same, multiple, or submultiple repetition rates, a relationship among the events such that a significant instant of one event bears a fixed time relationship to a corresponding instant in another event.
Note: Synchronism is maintained when there is a fixed, i.e., constant, phase relationship among the group of… (Read More →)

1. The attaining of synchronism between the frequencies or between the frequencies and phases of two or more signals. [T
1. X1]
2. The obtaining of a desired fixed relationship among corresponding significant instants of two or more signals. [T
1. X1]
3. A state of simultaneous occurrences of significant instants among two or more signals. [T
1. X1]

A bit used to achieve or maintain synchronism.
Note: The term "synchronization bit" is usually applied to digital data streams, whereas the term "synchronization pulse" is usually applied to analog signals.

In digital systems, a sequence of bits introduced into a transmitted signal to achieve or maintain synchronism.

A pulse used to achieve or maintain synchronism.
Note: The term "synchronization pulse" is usually applied to analog signals, whereas the term "synchronization bit" is usually applied to digital data streams. Synonym sync pulse.

1. Achieving and maintaining synchronism.
2. In facsimile, achieving and maintaining predetermined speed relations between the scanning spot and the recording spot within each scanning line.
Note: In the civilian community, the noun "synchronization" is preferred to "synchronizing. "

In FDM, a reference frequency used for achieving and maintaining syntonization of the oscillators of a carrier system or for comparing the frequencies or phases of the signals generated by those oscillators.

In facsimile systems, the signal that maintains predetermined speed relations between the scanning spot and recording spot within each facsimile scanning line.

1. Pertaining to the relationship of two or more repetitive signals that have simultaneous occurrences of significant instants.
Note: "Isochronous" and "anisochronous" pertain to characteristics. "Synchronous" and "asynchronous" pertain to relationships.
2. Pertaining to synchronism.

[A] method of on-line crypto-operation in which crypto-equipment and associated terminals have timing systems to keep them in step. [INFOSEC-99]