horizontal synchronizing pulse
horizontal synchronizing pulse[‚här·ə′zänt·əl ′siŋ·krə‚niz·iŋ ‚pəls]
The rectangular pulse transmitted at the end of each line in a television system, to keep the receiver in line-by-line synchronism with the transmitter. Also known as line synchronizing pulse.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.