{"id":16690,"date":"2024-01-23T14:23:41","date_gmt":"2024-01-23T14:23:41","guid":{"rendered":"https:\/\/kevinbk.com\/?p=16690"},"modified":"2024-01-23T14:23:44","modified_gmt":"2024-01-23T14:23:44","slug":"o-que-e-a-tecnologia-nfc-presente-nos-celulares","status":"publish","type":"post","link":"https:\/\/kevinbk.com\/vi\/cong-nghe-nfc-tren-dien-thoai-di-dong-la-gi\/","title":{"rendered":"Tecnologia NFC, ou Near Field Communication, \u00e9 uma forma de comunica\u00e7\u00e3o sem fio de curto alcance que permite a troca de dados entre dispositivos pr\u00f3ximos. Nos celulares, o NFC \u00e9 frequentemente usado para pagamentos sem contato, transfer\u00eancia de arquivos e outras intera\u00e7\u00f5es simples entre dispositivos."},"content":{"rendered":"<p>S\u1eed d\u1ee5ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 <em>sem contato<\/em> c\u00e1c qu\u00e0 t\u1eb7ng tr\u00ean th\u1ebb v\u1eadt l\u00fd v\u00e0 cung c\u1ea5p nhi\u1ec1u l\u1ee3i \u00edch<\/p>\n\n\n\n<p>S\u1ef1 c\u1ea1nh tranh gi\u1eefa c\u00e1c c\u00f4ng ty c\u00f4ng ngh\u1ec7 l\u1edbn khuy\u1ebfn kh\u00edch s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c t\u00ednh n\u0103ng m\u1edbi. Hi\u1ec7n nay, v\u00ed d\u1ee5, vi\u1ec7c th\u1ef1c hi\u1ec7n mua s\u1eafm an to\u00e0n \u1edf n\u01b0\u1edbc ngo\u00e0i ch\u1ec9 b\u1eb1ng vi\u1ec7c s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 s\u1ed1 l\u00e0 ho\u00e0n to\u00e0n kh\u1ea3 thi, nh\u1edd v\u00e0o c\u00e1c t\u00ednh n\u0103ng nh\u01b0 NFC, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c minh h\u1ecda b\u1eb1ng h\u1ec7 th\u1ed1ng Apple Pay.<\/p>\n\n\n\n<p>M\u1eb7c d\u00f9 ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean s\u1ef1 ti\u1ebfp c\u1eadn g\u1ea7n, nh\u01b0ng h\u1ec7 th\u1ed1ng NFC kh\u00f4ng s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 Wi-Fi v\u00e0 Bluetooth, m\u00e0 c\u1ea7n m\u1ed9t k\u1ebft n\u1ed1i internet \u0111\u1ec3 ho\u00e0n th\u00e0nh giao d\u1ecbch. \u1ede Brazil, c\u00f4ng ngh\u1ec7 n\u00e0y tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn h\u01a1n trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, v\u1edbi t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a c\u00e1c m\u00e1y \u0111\u1ecdc th\u1ebb v\u00e0 kh\u1ea3 n\u0103ng chuy\u1ec3n ti\u1ec1n gi\u1eefa hai smartphone.&nbsp;<\/p>\n\n\n\n<p>Quan tr\u1ecdng nh\u1ea5n m\u1ea1nh r\u1eb1ng, m\u1eb7c d\u00f9 c\u00f3 v\u1ebb nh\u01b0 l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 \u0111\u1ed9c quy\u1ec1n v\u00e0 kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn, nh\u01b0ng hi\u1ec7n nay \u0111\u00e3 c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y ch\u00fang m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. Xem c\u00e1c ph\u1ea7n sau \u0111\u00e2y \u0111\u1ec3 bi\u1ebft c\u00e1ch c\u00f4ng ngh\u1ec7 n\u00e0y ho\u1ea1t \u0111\u1ed9ng, c\u00e1c \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a n\u00f3 v\u00e0 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng v\u01b0\u1ee3t ra ngo\u00e0i vi\u1ec7c thanh to\u00e1n \u0111\u01a1n gi\u1ea3n qua th\u1ebb n\u1ee3 ho\u1eb7c t\u00edn d\u1ee5ng h\u00e0ng ng\u00e0y.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">NFC: l\u00e0 g\u00ec v\u00e0 l\u00e0m th\u1ebf n\u00e0o ho\u1ea1t \u0111\u1ed9ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng<\/h2>\n\n\n\n<p>A sigla NFC significa Near Field Communication ou, em portugu\u00eas, Comunica\u00e7\u00e3o de Campo Pr\u00f3ximo. Ela foi inventada em meados de 2002, em uma parceria de marcas de tecnologia no Jap\u00e3o. O funcionamento \u00e9 parecido com o sistema RFID, utilizado em cart\u00f5es de acesso para hot\u00e9is, crach\u00e1s e chaves digitais, por\u00e9m mais seguro.&nbsp;<\/p>\n\n\n\n<p>Nh\u01b0 t\u00ednh n\u0103ng ch\u00ednh, v\u00e0 nh\u01b0 c\u00e1i t\u00ean \u0111\u00e3 g\u1ee3i \u00fd, NFC ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb \u1edf kho\u1ea3ng c\u00e1ch g\u1ea7n. \u0110i\u1ec1u n\u00e0y gi\u1ea3m kh\u1ea3 n\u0103ng x\u1ea3y ra nhi\u1ec5u s\u00f3ng t\u1eeb c\u00e1c t\u1ea7n s\u1ed1 kh\u00f4ng d\u00e2y kh\u00e1c v\u00e0 c\u0169ng gi\u1ea3m kh\u1ea3 n\u0103ng m\u1ed9t thi\u1ebft b\u1ecb \u0111\u1ed9c h\u1ea1i ng\u0103n ch\u1eb7n vi\u1ec7c truy\u1ec1n th\u00f4ng gi\u1eefa \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng v\u00e0 m\u00e1y thanh to\u00e1n kh\u00e1c.<\/p>\n\n\n\n<p>\u0110\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, NFC c\u00f3 m\u1ed9t s\u1ed1 y\u00eau c\u1ea7u, \u0111\u00e3 tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn tr\u00ean h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb ng\u00e0y nay:<\/p>\n\n\n\n<ul>\n<li>c\u00f3 v\u1eadt li\u1ec7u t\u00f9y ch\u1ecdn: \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng b\u1eaft bu\u1ed9c ph\u1ea3i \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t v\u1edbi chip NFC \u0111\u1ec3 c\u00f4ng ngh\u1ec7 ho\u1ea1t \u0111\u1ed9ng. C\u00e1c m\u00f4 h\u00ecnh \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb n\u0103m 2014 tr\u1edf \u0111i \u0111\u00e3 b\u1eaft \u0111\u1ea7u bao g\u1ed3m chip theo ti\u00eau chu\u1ea9n;<\/li>\n\n\n\n<li>k\u1ebft n\u1ed1i internet: giao d\u1ecbch ti\u1ebfp x\u00fac c\u1ea7n k\u1ebft n\u1ed1i qua Wi-Fi ho\u1eb7c di \u0111\u1ed9ng, th\u1ef1c hi\u1ec7n vi\u1ec7c giao ti\u1ebfp gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt s\u1ed1;<\/li>\n\n\n\n<li>t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a c\u01a1 s\u1edf t\u00e0i ch\u00ednh v\u1edbi h\u1ec7 th\u1ed1ng s\u1ed1: \u0111\u1ec3 NFC ho\u1ea1t \u0111\u1ed9ng, ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i \u0111\u0103ng k\u00fd th\u1ebb v\u00e0o m\u1ed9t v\u00ed \u0111i\u1ec7n t\u1eed. Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng ty t\u00edn d\u1ee5ng \u0111\u1ec1u cung c\u1ea5p d\u1ecbch v\u1ee5 cho t\u1ea5t c\u1ea3 c\u00e1c n\u1ec1n t\u1ea3ng, do \u0111\u00f3 c\u1ea7n ki\u1ec3m tra t\u00ednh s\u1eb5n c\u00f3 c\u1ee7a d\u1ecbch v\u1ee5 trong t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Lo\u1ea1i NFC&nbsp;<\/h3>\n\n\n\n<p>\u0110\u1ec3 s\u1eed d\u1ee5ng h\u1eb1ng ng\u00e0y, m\u1ed7i lo\u1ea1i NFC c\u00f3 m\u1ed9t c\u1ea5u h\u00ecnh kh\u00e1c nhau, m\u00e0 ch\u00fang ta c\u00f3 th\u1ec3 t\u00f3m t\u1eaft trong hai lo\u1ea1i: ho\u1ea1t \u0111\u1ed9ng v\u00e0 ch\u1ee7 \u0111\u1ed9ng. \u0110\u1ed1i v\u1edbi \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, giao ti\u1ebfp l\u00e0 ho\u1ea1t \u0111\u1ed9ng, v\u00ec c\u00f3 s\u1ef1 g\u1eedi v\u00e0 nh\u1eadn th\u00f4ng tin \u0111\u1ed3ng th\u1eddi.&nbsp;<\/p>\n\n\n\n<p>M\u1ed9t v\u00ed d\u1ee5 v\u1ec1 NFC passivo l\u00e0 th\u1ebb ghi n\u1ee3 ho\u1eb7c th\u1ebb t\u00edn d\u1ee5ng c\u1ee7a b\u1ea1n, ch\u1ec9 ph\u00e1t ra m\u1ed9t t\u1ea7n s\u1ed1 d\u1eef li\u1ec7u cho m\u00e1y, c\u0169ng nh\u01b0 c\u00e1c th\u1ebb s\u1eed d\u1ee5ng trong giao th\u00f4ng c\u00f4ng c\u1ed9ng. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, vi\u1ec7c truy\u1ec1n th\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua chip t\u1eeb t\u00ednh t\u00edch h\u1ee3p trong c\u00e1c th\u1ebb v\u1eadt l\u00fd.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a NFC ngo\u00e0i vi\u1ec7c thanh to\u00e1n<\/h2>\n\n\n\n<p>Apple Pay l\u00e0 m\u1ed9t trong nh\u1eefng h\u1ec7 th\u1ed1ng thanh to\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 qua ti\u1ebfp x\u00fac \u0111\u1ea7u ti\u00ean tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn v\u1edbi ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh. Hi\u1ec7n nay, d\u1ecbch v\u1ee5 n\u00e0y cho ph\u00e9p thanh to\u00e1n tr\u1ef1c tuy\u1ebfn tr\u00ean c\u00e1c \u1ee9ng d\u1ee5ng mua s\u1eafm v\u00e0 d\u1ecbch v\u1ee5, v\u1edbi x\u00e1c th\u1ef1c b\u1eb1ng v\u00e2n tay ho\u1eb7c nh\u1eadn di\u1ec7n khu\u00f4n m\u1eb7t.&nbsp;<\/p>\n\n\n\n<p>Ngay c\u1ea3 khi vi\u1ec7c s\u1eed d\u1ee5ng ch\u00ednh c\u1ee7a n\u00f3 v\u1eabn l\u00e0 thanh to\u00e1n, NFC c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng theo c\u00e1ch kh\u00e1c, l\u00e0m cho vi\u1ec7c giao ti\u1ebfp gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n. Ai c\u00f2n nh\u1edb v\u1ec1 c\u1ed5ng h\u1ed3ng ngo\u1ea1i c\u0169? C\u00f4ng ngh\u1ec7 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng v\u00e0o gi\u1eefa nh\u1eefng n\u0103m 2000 \u0111\u1ec3 truy\u1ec1n t\u1eadp tin th\u00f4ng qua kho\u1ea3ng c\u00e1ch g\u1ea7n.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">K\u1ebft n\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u00e2m thanh, video v\u00e0 gi\u1ecdng n\u00f3i&nbsp;<\/h3>\n\n\n\n<p>Bluetooth v\u1eabn ti\u1ebfp t\u1ee5c l\u00e0 c\u00f4ng ngh\u1ec7 ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong vi\u1ec7c k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u00e2m thanh v\u00e0 h\u00ecnh \u1ea3nh. Tuy nhi\u00ean, c\u00f4ng ngh\u1ec7 NFC cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u \u0111\u1ebfn c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng kh\u00e1c m\u00e0 kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i v\u00e0 an to\u00e0n h\u01a1n, \u00edt b\u1ecb nhi\u1ec5u h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">chia s\u1ebb t\u1ec7p<\/h3>\n\n\n\n<p>Thay th\u1ebf c\u00e1p v\u00e0 t\u1ea3i l\u00ean truy\u1ec1n th\u1ed1ng, NFC c\u00f3 th\u1ec3 g\u1eedi v\u00e0 nh\u1eadn t\u1eadp tin gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb g\u1ea7n nh\u01b0 ngay l\u1eadp t\u1ee9c. Ngo\u00e0i h\u00ecnh \u1ea3nh, video v\u00e0 \u00e2m thanh, \u0111i\u1ec7n tho\u1ea1i c\u0169ng c\u00f3 th\u1ec3 trao \u0111\u1ed5i li\u00ean k\u1ebft, tin nh\u1eafn v\u0103n b\u1ea3n ng\u1eafn, c\u00e0i \u0111\u1eb7t Wi-Fi v\u00e0 th\u1eadm ch\u00ed l\u00e0 m\u1eadt kh\u1ea9u m\u1ed9t c\u00e1ch an to\u00e0n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">The translation is: \"Theo d\u00f5i c\u00e1c th\u1ebb v\u00e0 chip\"<\/h3>\n\n\n\n<p>M\u1eb7c d\u00f9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi m\u1ed9t s\u1ed1 ng\u01b0\u1eddi nh\u1ecf \u1edf Brasil, c\u00e1c th\u1ebb theo d\u00f5i s\u1eed d\u1ee5ng NFC nh\u01b0 l\u00e0 <a href=\"https:\/\/kevinbk.com\/vi\/?s=tecnologia\">C\u00f4ng ngh\u1ec7<\/a> t\u1eeb c\u01a1 b\u1ea3n cho vi\u1ec7c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3. Sau khi li\u00ean k\u1ebft v\u1edbi \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ed5i t\u00ean v\u00e0 \u0111\u01b0\u1ee3c theo d\u00f5i theo th\u1eddi gian th\u1ef1c.<\/p>","protected":false},"excerpt":{"rendered":"<p>S\u1eed d\u1ee5ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00f4ng ngh\u1ec7 kh\u00f4ng ti\u1ebfp x\u00fac c\u00f3 s\u1eb5n tr\u00ean th\u1ebb t\u00edn d\u1ee5ng v\u1eadt l\u00fd v\u00e0 mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch. Cu\u1ed9c c\u1ea1nh tranh gi\u1eefa c\u00e1c c\u00f4ng ty l\u1edbn<\/p>","protected":false},"author":9,"featured_media":16691,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[95],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/kevinbk.com\/wp-content\/uploads\/2024\/01\/O-que-e-a-tecnologia-NFC-presente-nos-celulares_-Entenda.jpeg","_links":{"self":[{"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/posts\/16690"}],"collection":[{"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/comments?post=16690"}],"version-history":[{"count":1,"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/posts\/16690\/revisions"}],"predecessor-version":[{"id":16692,"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/posts\/16690\/revisions\/16692"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/media\/16691"}],"wp:attachment":[{"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/media?parent=16690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kevinbk.com\/vi\/wp-json\/wp\/v2\/categories?post=16690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}