Tus thawj laser discs: thaum muaj dab tsi thiab lawv tau invented

Hais txog ib lub xyoo pua, txij li thaum lub 80-ies ntawm lub XIX xyoo pua, rau tsev music siv cov ntaub ntawv hais tias, nyob rau hauv kev phem ntawm lub heev heev kev txhim kho, tsis fundamentally hloov.

Neeg kho tshuab teeb liab nyeem los ntawm cov kauv khiav yog lub ntsiab lub hom kev lag luam ntawm me nyuam cov khoom rau ntau xyoo lawm. Thoob plaws thiab sib nqus tawm, thiab chev rau daim kab xev daig kab, tab sis tus thawj qhov chaw ntawm lub teeb liab muab sau tseg rau lawv feem ntau yog tau txais kev pab acetate thiab yas cov ntaub ntawv.

Qhov teeb meem no tau hloov xwb thaum tus thawj laser discs.

Nyob rau hauv thaum ntxov eighties nyob rau hauv lub Soviet Union, taug xaiv pib circulate uas rau sab hnub poob nyob rau hauv lub chav kawm ntawm ib co CD players. Yuav ua li cas yog lawv tsis ua hauj lwm zoo li yuav luag tsis muaj ib tug paub. Ib txhia cov neeg uas muaj tshwj xeeb luxuriant lub tswv yim tswv yim hais tias lawv es tsis txhob ntawm lub niaj zaus lub taub hau nrog ib rab koob rau lub tonearm neeg uas ua ntawv ntsia tawg qhov chaw uas nyeem suab paj nruag los cov pa LP. Cov neeg uas mus txawv teb chaws, cov neeg tsav nkoj, diplomats thiab lwm yam "mus saib", nws twb paub hais tias qhov no suab khoom yog cov txheej txheem ntawm txawv.

By kawg ntawm lub eighties nyob rau hauv lub teb chaws pib coj thawj laserdisc. Thaum ua cov "txuj ci tseem ceeb ntawm technology", lawv kim heev, thiab yooj yim music lover twb luv. Feem ntau cov feem ntau, lawv yuav lub tswv koom tes "cov ntaubntawv povthawj siv studios" rau coj mus muag hom phiaj. Music cov kev pab cuam yog replicated nrog lub Compact daig kab nrog hitherto unprecedented zoo.

Thaum twg yog no kiv puag ncig nyob rau hauv cov ntaub ntawv technology, uas tau nyob rau hauv hloov cov pa gramophone cov ntaub ntawv tuaj ua ntej laserdisc? Thaum lub tshuab sawv, uas lawv yuav tsim? Cov heev lub tswv yim ntawm ib tug kho qhov muag ntaub ntawv cab kuj yog patented nyob rau hauv 1958 thiab yog reflected nyob rau hauv daim card nyeem ntawv punched phaib thiab punched. Lub hauv paus ntsiab lus yog tej yam yooj yim. Rau tau txais, kis thiab cia tej nqi ntawm cov ntaub ntawv txaus binary code nyob rau hauv Morse code.

Thaum lub sij hawm thib ob ib nrab ntawm lub 70s, muaj ntau yam hauj teeb meem, uas tau raug muab daws cov tsos ntawm cov thawj laser disc. Hnub ntawm commencement ntawm lawv loj muag khoom - 1982 - cim cov kev hloov ntawm yas cov ntaub ntawv nrog rau cov ntaub ntawv ua lag luam.

Zoo li lwm yam kev qhia, cov suab paj nruag yuav tsum tau kho. Nyob rau hauv cov ntaub ntawv no, cov neeg ntawm lub tu tub tu kiv yog nyob rau hauv lub quantization kauj ruam, uas yog tam sim no hu ua lub bitrate. Thaum kawg, ntau dua qhov zoo, ntau dua qhov lub xov tooj ntawm bytes yuav coj audio kev pab cuam nyob rau hauv cov ntawv no. Raws li txoj ntsiab cai no, SONY thiab Philips lub tuam txhab pib tsim thawj lub laser discs. Thaum muaj CD-DA (cov suab compact discs), lawv tau npaj rau ib lub hom phiaj - los cov ntaub ntawv suab paj nruag.

Buyers tsis paub tag nrho cov kev txhawb, vim lawv yog ib qho tseem ceeb neeg zoo ntawm ib yam khoom tshiab, thiab lawv impressive. Muaj peev xwm mus ua si Program nyiam ntxias infinite tooj ntawm lub sij hawm uas tsis muaj kev deterioration nyob rau hauv suab, loj me me, zoo heev zoo - tag nrho cov zoo ua ke nyob rau hauv daim hlau, iridescent iridescent ci ntsa iab.

Kws txawj raws li kev yam ntxwv ntawm cov yam tshiab ntawm kev tshaj tawm tham hais txog ib tug ntau. Peev Xwm nws yog ces 0,65 Gbytes, rau li sounding 74 feeb ntawm cov suab paj nruag nyob rau hauv zoo heev zoo.

Tam sim ntawd cia li sawv lub tswv yim, raws li cov thawj laser discs yuav siv tau. Thaum lub sij hawm los mus sau cai, lub tswv yim ntawm cov technology rau cov ntaubntawv povthawj siv ib tug yees duab teeb liab. Tus thawj cov zaj duab xis, tso tawm nyob rau hauv Video CD, los ua nto moo thriller "Puab tsaig." Txawm li cas los, raws li lub ntsiab zoo indicators, As "duab" sau raws nkaus Ii kwv yees li ib tug sib nqus cov ntaub ntawv nyob rau hauv VHS hom rau VHS, tab sis Down thiab tawm qhov teeb meem pib ...

Niaj hnub no nws yog dav siv laser discs loj npaum li cas muaj peev xwm, Cov ntau yam Disc (DVD) thiab Blue Ray, xws li multi-fawm kib. Ntxiv kev txhim kho ntawm tus kho qhov muag-digital media mus nyob rau hauv cov kev taw qhia ntawm technology kev loj hlob FMD-ROM, uas yog raws li nyob rau hauv fluorescent thaj chaw ntawm substrate. Lub peev xwm ntawm xws discs yuav ncav cuag 140 GB.