A method of synchronization involving the generation of a video signal sync-locked with another signal. Because they are synchronized, a genlocked signal can be mixed with the original signal, allowing dissolves, wipes and other transition effects. Genlock and frame synchronization differ in that genlock is the generation of a new signal synchronized to an existing video signal while frame synchronization takes two existing video signals and synchronizes them. Genlocking two VCRs requires the use of a time base corrector ( TBC).
Synchronizes two video sources, allowing part or all of their signals to be displayed together. Necessary for overlaying computer graphics with video.
To recover and use the original horizontal and vertical timing control signals from a video signal.
this is a device which enables the output from the computer's video system to synchronised with a normal video signal so that computer-generated text and graphics can be superimposed on the video signal
A device to combine and synchronise the graphics from a computer, with those from an external video source like a video camera or a VCR. Genlock is a television term meaning "generator lock". When different video signals of the same standard are genlocked, their vertical, horizontal & subcarrier signals are synchronised either exactly or with a fixed offset. A second video signal is then locked to the original by a digital or analog phase-locked loop.
The synchronization of a piece of video equipment to another using an external video or similar signal. In broadcasting and videoconferencing systems, all picture sources should be genlocked together or made synchronous.
The synchronization of a piece of video equipment by means of an external video signal. In videoconferencing systems, all cameras should be genlocked together.
A device used to enable the synchronisation of the start of a field on one signal with that of another piece of equipment. e.g. when taking an unsynched camera output and a computer generated picture. Used to be done by a signal store and forward mechanism, nowdays its done digitally.
A method of synchronizing video equipment by using a common, external signal. This locks the sync generators of multiple devices to a single source.
(n.) The capability of a video device to accept a synchronous signal so that the device input or output pixels are precisely in phase with the input sync.
Synchronisation of video signals. Required for video mixing, some video transmission multiplexes and for clean switching between multiple video sources.
A mode of Synchronization in which a device is made to synchronize with an incoming reference signal provided by another device, e. g station reference Pulse Sync Generator. For composite signals there are two main functions of genlocking: vertical and horizontal.
is the synchronizing of video equipment by using a common external signal.
Also known as House Sync or Haustakt (German). Technique where the output of one system synchronizes another.
a device which synchronises the signal of one or more video systems to the signal of another so that they may be mixed or superimposed. Essential when using a computer generated image, such as a titling program, in order to transfer or superimpose it onto a video tape in a VCR.
A device or procedure used to synchronize multiple video sources.
display: The ability to synchronize two video signals - for example, a video image with a computer-generated title - on the same screen.
A video device that synchronizes two video signals and enables them to be mixed; for example, to overlay a subtitle produced on the computer onto live video.
a system whereby the internal sync generator in a device, such as a camera, locks on to and synchronizes itself with an incoming signal.
Video output timing is locked to a selected source.
The term used to describe the ability of a camera to lock it s internal synchronization to an external source.
A device which locks the frequency of its internal sync generator to an external source.
A device used to lock the frequency of an internal sync generator to an external source.
A device that adjusts the frequency of internal sync to an external data.
A process of sync generator locking. This is usually performed by introducing a composite video signal from a master source to the subject sync generator. The generator to be locked has circuits to isolate vertical drive, horizontal drive and subcarrier. The process then involves locking the subject generator to the master subcarrier, horizontal, and vertical drives so that the result is that both sync generators are running at the same frequency and phase.
A circuit that locks the frequency of an internal clock to an external timing source. This term is used to refer to the ability of a video digitizer to rely on external clocking.
Video devices require a synchronization source in order to determine the exact moment at which a video frame begins. Genlock allows multiple devices (video records, cameras, etc.) to be used together with precise timing so that they capture a scene in unison.
Genlock (for Generator Lock) is a common technique where the video output of one source, or a specific reference signal, is used to synchronize other television picture sources together. The aim in video and digital audio applications is to ensure the coincidence of signals in time at a combining or mixing or switching point. When sources are synchronized in this way, they are said to be genlocked.
