genlock: The synchronization of two television signals at the vertical, horizontal, and chroma phase levels such that the signals may be cut, mixed, or cross-faded without noticeable roll, jump, or chroma shift. Note: Modern usage accomplishes this with a frame synchronizer/ time base corrector, but it may also be accomplished by a closed loop method or an open loop method, the latter using a pair of rubidium clocks and a video delay line to maintain chroma lock.

These definitions were prepared by ATIS Committee T1A1.  For more information on the work related to these definitions, please visit the ATIS website.

This HTML version of Telecom Glossary 2K was last generated on February 28, 2001. References can be found in the Foreword.