genlock


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genlock

[′gen‚läk]
(electronics)

genlock

(GENerator LOCKing) Synchronizing multiple video signals from cameras, video recorders and external sources. Genlock emits a signal for each frame, and professional video equipment has a dedicated sync port for this function. A frame's timecode is also used for synchronization; however, the clocks in each device may not be 100% precise, and recordings can drift.
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The industry's lowest jitter clock generator for genlock applications, the Si5324, addresses these challenges, delivering jitter performance of 5 ps pk-pk, providing significant margin to all existing and emerging video standards including 3G-SDI (SMPTE 424M).
Genlock enables video and graphics feeds from various devices - such as cameras, recorders, mixers, keyers and more - to "lock" to an externally generated signal, helping avoid jumping, flicker or scan lines that commonly arise when switching video sources.
In genlock mode, these output signals can be phase-locked to H and V sync signals applied to either of the reference ports.
We've been powering our Immersive Virtual Reality environment using NVIDIA hardware since the introduction of the genlock boards in 2003," said Jonathan Marbach of the BP Center for Visualization.
NVIDIA Quadro FX 4400G -- delivers genlock and framelock capabilities on top of the powerful FX 4400 architecture and advanced feature set.
0 supports auto-sync of video inputs, so users don't need expensive cameras that feature genlock.
Not only is it a great HD portable field camera, it can also be used as an HD studio camera with its genlock input and HD-SDI output.
Four-sided picture edge Features also include genlock capability and low latency.
Features such as Stay GenLock and GPS Holdover and Recovery system prevent synchronization shock to the system during the loss and recovery of the reference input signal to help ensure that broadcast signals can be maintained at all times.
LiveCG Broadcast SDI provides SDI in and out as well as Key out and genlock in to be integrated with any professional video switchers.
The VC series can also embed accompanying audio into the DV/HDV stream and embed up to four channels of audio into the SDI/HD-SDI stream, and provides audio-delay adjustments in millisecond or frame increments for lip/audio sync with the video source as well as in/out sync terminals to allow Genlock with external devices.
The high-end 3D pro graphic accelerator ATI FirePro V8750 is also compatible with ATI FirePro S400 Synchronization Module for framelock and genlock synchronization for demanding broadcast, video editing, visualization, simulation and rich display applications.