kompiuteris periferiuli mowyobilobebi
kompiuteris periferiuli mowyobilobebi
kompiuteris periferiuli mowyobilobebi
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perpendikularuli Caweris meTodi SemoTavazebuli<br />
iqna jer kidev 1976 wels, Tumca misi praqtikuli<br />
realizacia moxda mxolod 1989 wels, 2,88 mbaitian<br />
drekad diskebSi.<br />
vinCesterebis wamyvani damamzadebeli kompaniebi<br />
intensiurad muSaoben perpendikularuli Caweris<br />
teqnologiis srulyofaze, rac SesaZlebels<br />
gaxdis Caweris simWidrovis gazrdas amJamad umaRlesi<br />
maCveneblebis mqone AFC (antiferromagnetically coupled)<br />
samuSao feniT dafarul vinCesterebTan SedarebiT.<br />
gamokvlevebi adasturebs, rom matarebelze informaciis<br />
perpendikularuli Caweris meTodis realizacia<br />
SesaZlebels gaxdis Caweris simWidrovis 500-1000<br />
gbaiti/diuimi2-mde gazrdas.<br />
Tumca perpendikularuli Caweris meTodis realizaciis<br />
SemTxvevaSi saWiro gaxdeba Tavakebis da<br />
vinCesteris sxva elementebis konstruqciis mTliani<br />
Secvla. imis gaTvaliswinebiT, rom aseTi modernizacia<br />
sakmaod did TanxebTanaa dakavSirebuli, xolo<br />
GMR da AFC teqnologiebi jer-jerobiT akmayofileben<br />
Tanamedrove moTxovnebs, vertikaluri Caweris<br />
teqnologiis farTod gavrceleba uaxloes periodSi<br />
naklebsavaraudoa.<br />
49<br />
2.3. monacemebis kodirebis saSualebebi<br />
magnitur matarebelze cifruli monacemebi<br />
analoguri formiT inaxeba. Caweris signalSi impulsebis<br />
optimaluri ganawilebisTvis cifruli monacemebi<br />
miewodeba specialur mowyobilobas, romelsac<br />
koder-dekoderi (coder-decoder) ewodeba. es mowyobiloba<br />
orobiT monacemebs gardaqmnis eleqtrul<br />
signalebad, romlebic optimizirebulia Casawer bilikze<br />
niSnis cvlilebis zonebis ganawilebis TvalsazrisiT.<br />
cifrul monacemebTan muSaobis dros gansakuTrebuli<br />
mniSvneloba sinqronizacias eniWeba. Cawerisas<br />
da wakiTxvisas uaRresad mniSvnelovania niSnis<br />
cvlilebis yoveli momentis zusti gansazRvra.<br />
sinqronizaciis ararsebobam SeiZleba gamoiwvios<br />
niSnis cvlilebis momentis araswori gansazRvra da<br />
aqedan gamomdinare, informaciis damaxinjeba.<br />
gadamcemi da mimRebi <strong>mowyobilobebi</strong>s muSaoba<br />
mkacrad unda iyos sinqronizebuli. sinqronizaciis<br />
ori zogadi saSualeba arsebobs:<br />
• sinqrosignalis gadacema kavSiris specialuri<br />
arxis saSualebiT;<br />
• sinqrosignalis gaerTianeba monacemTa signalTan<br />
da maTi erTi kavSiris arxiT gadacema.<br />
sinqronizaciis pirveli meTodi damgrovebleb-<br />
Si Semdegi mizezis gamo ar gamoiyeneba: davuSvaT 0vani<br />
bitis Cawera diskze xdeba erTi polarobis<br />
domenebis saxiT. maSin 10 nulovani bitis Caweris Se-<br />
50
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