CAV


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CAV

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

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.
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References in periodicals archive ?
This provides a safe setting in which CAVs can be tested to the limits of controllability.
The task force will continue to enable companies to pursue innovative ideas around CAV technology in a business-friendly way that has been the calling card for Texas in this space and others over time.
where [Q.sub.req(VI)] is CAV of diluted smoke-dust ([m.sup.3]/s) and [[delta].sub.VI] is the smoke-dust concentration in design ([m.sup.-1]).
represents the [Ca.sup.2+] binding rate, with [Ca.sub.G] the [Ca.sup.2+] concentration at the granule sensor given by Equation (4) with r = rG being the distance from the CaV to the [Ca.sup.2+] sensor on the granule.
Since the year 1984, our center performed 508 HTx; of them, 201 were alive at the beginning of this study and 96 fulfilled the inclusion criteria, that is, > 1 year after the HTx, CAV assessment in the 6 months before/after blood was obtained for biomarker evaluation, an estimated glomerular filtration rate (eGFR) [greater than or equal to] 30 mL/min/1.73 [m.sup.2] and a follow-up in our center.
This effort will continue to assess the potential impacts of CAV applications--specifically SIAD and CACC--using emerging HIL tools and conduct closed field tests at FHWA's Turner-Fairbank Highway Research Center as well as outside facilities.
Gibson was not present at any of the hearings. Mortimer had to base her judgement on the documents and evidences collected by CAV during their investigation.
He said: "We've kept the look of the Cav as it's always been but we've given it a sparkle.
Cav. Beretta and his sons Pietro (president and CEO of Beretta Holding SpA) and Franco (executive VP of Beretta USA Corp.), along with Tennessee Gov.
But British Cycling technical director Shane Sutton has warned Cav, 30, that he can expect no favours and will not be handed a ticket to Brazil unless he wins a medal in his debut on the London 2012 track.
Cardiac allograft vasculopathy (CAV) remains the most frequent cause of long-term heart-related mortality after heart transplantation (HTx) [1].