In facsimile systems, the time interval between (a) the instant at which the scanning spot probes or writes to a given spot on one scanning line , and (b) the instant at which the scanning spot probes or writes to the corresponding spot on the next scanning line.
SCANNING LINE PERIOD
Meaning of SCANNING LINE PERIOD in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012