Usakhumbula lezo zinsuku zenkazimulo emhlabeni weNokia, futhi waqokwa njengenkosi yocingo lweselula lwe-N95? Ngo-1995, kwakunezindawo eziningi zokungena enkathini ye-2G futhi kwavela isofthiwe yezenhlalo. Ngo-2000, enkathini ye-3G yamafoni ahlakaniphile, isofthiwe yezenhlalo yaba yinkosi. Ngo-2013, enkathini ye-4G, ukusakaza bukhoma namavidiyo amafushane kwakuthandwa ngokulinganayo, futhi ukugeleza kolwazi kwaba yisihloko esishisayo. Uma ngibheka emuva kungekudala izolo, impilo yedijithali yafika kithi buthule, kanye namafoni aphathwayo, i-TV nayo iyathuthuka. Isethi ye-TV emnyama nemhlophe eyayiyisicefe ithathelwe indawo yi-TV ye-LCD enemibala, okusivumela ukuthi sibukele umhlaba ekhaya. Phakathi kwazo, ubuchwepheshe kanye nesivinini sokuthuthukiswa kwe-TV kuphela kukhanga kakhulu, kodwa namuhla ngifuna ukukhuluma hhayi ngobuchwepheshe be-TV, kodwa ngokulawula okude okuhambisana nakho.
Ukuthuthukiswa kokulawula okude kungalandelelwa emuva ngawo-1950.
Ngo-1950, isikhulu se-zenith electronics uJohn McDonald waphonsela inselelo onjiniyela bakhe ukuba baqhamuke nedivayisi engayithulisa izikhangiso noma iziqondise kwenye isiteshi.
Isilawuli kude sazalwa.
Ekuqaleni, yayingaxhunywa ku-TV yakho kuphela. Eminyakeni emihlanu kamuva, u-Eugene Polley, unjiniyela enkampanini efanayo, wakha idivayisi yokuqala engenantambo elawulwa ngokukhanya ebizwa ngokuthi i-flashmatic, eyamtholela isihloko sokuba nguyise wesilawuli kude sethelevishini.
Kodwa amadivayisi, angashintsha iziteshi futhi alungise ivolumu, awasetshenziswa kabanzi ngoba kunzima ukuwalawula.
Ngo-1950, isikhulu se-zenith electronics uJohn McDonald waphonsela inselelo onjiniyela bakhe ukuba baqhamuke nedivayisi engayithulisa izikhangiso noma iziqondise kwenye isiteshi.
Isilawuli kude sazalwa.
Ekuqaleni, yayingaxhunywa ku-TV yakho kuphela. Eminyakeni emihlanu kamuva, u-Eugene Polley, unjiniyela enkampanini efanayo, wakha idivayisi yokuqala engenantambo elawulwa ngokukhanya ebizwa ngokuthi i-flashmatic, eyamtholela isihloko sokuba nguyise wesilawuli kude sethelevishini.
Kodwa amadivayisi, angashintsha iziteshi futhi alungise ivolumu, awasetshenziswa kabanzi ngoba kunzima ukuwalawula.
Kwathi ngo-1956, uRob Adler wakha isilawuli kude se-Zenith Space Command. Sisebenzisa isimiso se-ultrasound ukulungisa ivolumu kanye nesiteshi. Ukhiye ngamunye ukhipha imvamisa ehlukile, kodwa idivayisi ingaphansi kokuphazamiseka okuvamile kwe-ultrasonic.
Kuze kube ngu-1980, isilawuli kude se-infrared sazalwa, futhi kancane kancane sathatha indawo yedivayisi yokulawula ye-ultrasonic. Isilawuli kude se-infrared ukusetshenziswa kokukhanya kwe-infrared ukudlulisa imiyalelo, okungukuthi, siyizinkinobho ezinde ezivame kakhulu zesilawuli kude.
Ukuthuthukiswa kokulawula kude kuze kube manje, abakhiqizi abaningi bokulawula kude baqalise imisebenzi ehlukene, okuhlanganisa nokulawula ngezwi, okwaziwa nangokuthi ukulawula kude kwezwi le-Bluetooth, badinga nje ukucindezela inkinobho yezwi yesilawuli kude ukuze bakhulume ne-TV, ukuqashelwa kwe-TV kuzosebenza ngesikhathi esifanayo. Kodwa lokho ngokuqinisekile akuzange kufeze umgomo okhululekile kwaze kwaba yilapho eminye imikhiqizo iqala ukunikeza amakhono okuxhumana ngezwi lase-far-field akuvumela ukuthi ulawule i-TV yakho ngezwi elivulekile ngaphandle kokuthola isilawuli kude.
Isikhathi sokuthunyelwe: Jan-28-2023