Encoder vs Decoder
Nyob rau hauv ib puag ncig kev yees niaj hnub no, kev xa tawm, khaws cia, thiab txhais cov ntaub ntawv ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm txhua lub tshuab hluav taws xob, txawm tias nws yog cov cuab yeej digital lossis analog ntaus ntawv lossis lub khoos phis tawj lossis software system. Hauv kev nkag siab dav dav, tus encoder yog ib feem hauv lub kaw lus uas hloov (lossis cov lej) cov ntaub ntawv los ntawm ib daim ntawv mus rau lwm qhov. Ib tug decoder yog ib feem uas reveres tus txheej txheem; uas yog, hloov cov ntaub ntawv rov qab mus rau daim ntawv qub lossis qub.
Ntau txog Encoders
Raws li tau hais ua ntej, tus encoder hloov cov ntaub ntawv ntawm ib daim ntawv mus rau lwm qhov, txhawm rau txhim kho qhov nrawm thiab raug thaum xa tawm, khaws cov ntaub ntawv kom ruaj ntseg, thiab ua qauv. Encoder tuaj yeem txo qhov loj me me los ntawm kev hloov cov ntaub ntawv mus rau lwm hom.
Hauv cov hluav taws xob hluav taws xob, cov encoders yog siv los ua kom cov digital ntau yam binary inputs rau hauv cov zis me me. Digital to Analog Converters (DAC) thiab Analog to Digital Converters (ADC) kuj yog hluav taws xob encoders. Hauv kev sib txuas lus, encoders yog siv los hloov cov input me ntsis ntws mus rau hauv tus qauv code rau kev sib kis.
Qee cov transducers kuj ua raws li encoders. Rotary Encoder thiab Linear Encoder yog cov piv txwv rau transducer encoders. Rotary encoders yog siv los hloov lub angular txoj hauj lwm ntawm ib qho kev txav mus los (xws li lub ncej) thiab cov ntsiab lus muaj feem xyuam rau cov khoom siv digital lossis analog teeb liab. Linear transducers kuj ua tau tib yam kev ua haujlwm tab sis ntawm cov kab tawm. Cov khoom siv no yog siv hauv Mechatronics thiab robotics kom tau txais cov ntaub ntawv qhia chaw ntawm cov khoom.
Lwm yam ntawm kev encoding yog rau kev ruaj ntseg. Cov ntaub ntawv, ua ntej xa los yog khaws cia, tej zaum yuav raug encrypted siv tus encoder, ua rau cov ntaub ntawv nkag tsis tau yam tsis muaj txheej txheem decoding; yog li ua kom cov ntaub ntawv ruaj ntseg.
Nyob rau hauv niaj hnub xov xwm technology, encoding yog siv nyob rau hauv ob qho tib si suab thiab video tswj. Lub suab encoder yuav ntes, compress hloov mus rau lwm hom ntaub ntawv suab. Ib qho video encoder tuaj yeem ua haujlwm saum toj no rau cov ntaub ntawv video. Hauv computer ib puag ncig, CODEC (COMpressor- DECompressor) software ua ob qho tib si encoding thiab decoding ntawm digital audio - video signals.
Hauv web technologies kuj siv cov encoders los txhim kho cov qauv kev ruaj ntseg. E-mail encoders ruaj ntseg email raug nkag los ntawm cov neeg siv tsis tau tso cai.
Ntau txog Decoders
Tus decoder ua qhov kev ua haujlwm ntawm tus encoder, thim rov qab cov txheej txheem encoding ua hloov cov ntaub ntawv mus rau nws cov hom ntawv dhau los lossis lwm hom ntawv siv tau. Piv txwv li, nyob rau hauv electronics yog hais tias ib tug teeb liab encoded siv ib tug Analog rau Digital Converter rau kis tau tus mob lub hom phiaj, tus receiver yuav tsum tau txiav txim siab lub teeb liab siv Digital rau Analog Converter mus retrieve tus thawj analog teeb liab. Hauv qhov no, ADC ua tus encoder thiab DAC ua tus decoder.
Rau txhua qhov encoding system lossis txoj kev sib tham saum toj no, ib qho sib npaug ntawm kev txiav txim siab muaj nyob rau cov ntaub ntawv retrieval.
Feem ntau, rau kev kho vajtse ntawm kev hloov pauv ntawm cov ntaub ntawv tawm tswv yim feem ntau hu ua Encoder- Decoder (ENDEC), thaum software yam raug xa mus rau CODEC. Txawm li cas los xij, kev siv tsis yog tshwj xeeb rau ib chav kawm ntawm software lossis kho vajtse.
Dab tsi yog qhov txawv ntawm Encoders thiab Decoders?
