CAV


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CAV

CAV

(1) (Component Analog Video) See YPbPr.

(2) (Constant Angular Velocity) Rotating an optical disc or hard disk at a constant speed. Contrast with "constant linear velocity" (CLV), in which the platter rotates at varying speeds. Since the circumferences of the inner tracks on a disk are smaller than the outer tracks, if a single clock frequency is used to write the data, the inner tracks are more dense than the outer ones in a CAV system.

Zone Bit Recording
In order to maximize the space on a round medium more efficiently, in the 1990s, hard drive manufacturers migrated to "zone CAV" (Z-CAV), also known as "zone bit recording" (ZBR). Z-CAV breaks the disk into multiple zones that each contain several thousand tracks, the number depending on the zone's location within the platter. When the read/write head moves from zone to zone, the clock frequency changes. As a result, the outer tracks have more sectors than the inner tracks and hold more data, and the disk's capacity is larger for the same size platter.

Just Two Zones
"Partial CAV" (P-CAV), also known as "CAV/CLV," breaks the disk into two zones. Used in certain CD-ROM and DVD drives, P-CAV keeps the speed constant for the inner zone (CAV), but varies the disk rotation for the outer zone (CLV). See CLV.
References in periodicals archive ?
The unexpectedly thick canopy forced the perimeter security element provided by A/2-7 CAV too close to the main body to effectively provide early warning.
In the end it was the pride of their accomplishment that will keep the CAV seeking out new projects in the future.
CAV II currently provides contractors much the same capability of sending repair status directly from their internal systems to CAV through the CAV EDI program, which utilizes the EDI ANSI X12 language set.
For additional information concerning CAV II contact: Delores Leak, CAV Project Officer, 717-605-5660, e-mail: delores.
However, inappropriate discontinuation of CAV by patients is common because compliance requires a long-term commitment and discipline.
However, taxpayers that have already timely filed their 2002 return may still change to the CAV method, by filing Form 3115 with an amended return within six months of the 2002 return's original due date (without extensions); see Rev.
DVD+R and DVD+RW has some better features than DVD-R/W, such as lossless linking and compatibility with both CAV and CLV, making it ideal for both data and video.
By applying partial CAV technology instead of the conventional CLV, our new recorders do not require additional time for controlling the rotation speed of the motor, allowing for faster, smoother recording," said Allen H.
Air Tractor Military Dealer CAV specializes in creating customized, low-cost, turnkey utility aircraft solutions for border and coastal patrol, surveillance, counter-insurgency, oil spill clean up, and a wide variety of other applications.
County Durham-based CAV operates two divisions, Advanced Technologies and Ice Protection, which designs and manufactures ice protection systems for the aviation industry.
Chief executive Owen McFarlane told the jury that CAV Aerospace was not responsible for Mr Bowers' death.
Better Capital said it has been tracking the business for several years, and said that CAV operates in a growing market which is expected to continue to perform well.