{"id":3685,"date":"2017-07-12T23:33:00","date_gmt":"2017-07-12T16:33:00","guid":{"rendered":"http:\/\/192.168.1.47\/?p=3685"},"modified":"2024-03-27T18:09:29","modified_gmt":"2024-03-27T11:09:29","slug":"dien-thoai-khong-pin-thuc-hien-cuoc-goi-dau-tien-tren-the-gioi","status":"publish","type":"post","link":"https:\/\/eplusi.net\/en\/news\/dien-thoai-khong-pin-thuc-hien-cuoc-goi-dau-tien-tren-the-gioi\/","title":{"rendered":"\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng pin th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3685\" class=\"elementor elementor-3685\" data-elementor-settings=\"[]\">\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4a2cb4d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4a2cb4d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-131c481\" data-id=\"131c481\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-38a840c elementor-widget elementor-widget-text-editor\" data-id=\"38a840c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif;\"><b>\u0110i\u1ec7n tho\u1ea1i \u0111i \u0111\u1ed9ng kh\u00f4ng pin \u0111\u1ea7u ti\u00ean th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng thu th\u1eadp t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh qua s\u00f3ng \u0111i\u1ec7n t\u1eeb v\u00e0 \u00e1nh s\u00e1ng<\/b><\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u thu\u1ed9c \u0110\u1ea1i h\u1ecdc Washington \u0111\u00e3 ph\u00e1t minh ra chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng kh\u00f4ng d\u00f9ng pin &#8211; m\u1ed9t b\u01b0\u1edbc ti\u1ebfn nh\u1ea3y v\u1ecdt trong c\u00f4ng ngh\u1ec7 \u0111\u1ec3 tho\u00e1t kh\u1ecfi c\u00e1c thi\u1ebft b\u1ecb s\u1ea1c, d\u00e2y c\u00e1p v\u00e0 nh\u1eefng chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i ch\u1ebft c\u1ea1n n\u0103ng l\u01b0\u1ee3ng. Thay v\u00e0o \u0111\u00f3, \u0111i\u1ec7n tho\u1ea1i s\u1ebd thu th\u1eadp n\u0103ng l\u01b0\u1ee3ng h\u00e0ng microwatt t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh nh\u01b0 s\u00f3ng \u0111i\u1ec7n t\u1eeb v\u00e0 \u00e1nh s\u00e1ng \u0111\u1ec3 t\u1ef1 cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng ho\u1ea1t \u0111\u1ed9ng.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi b\u1eb1ng Skype tr\u00ean \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng pin, ch\u1ea1y demo tr\u00ean m\u1eabu \u0111i\u1ec7n tho\u1ea1i \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb c\u00e1c linh ki\u1ec7n c\u00f3 s\u1eb5n, nh\u1eadn &#8211; truy\u1ec1n gi\u1ecdng n\u00f3i v\u00e0 giao ti\u1ebfp v\u1edbi c\u00e1c tr\u1ea1m ph\u00e1t s\u00f3ng BTS.<\/span><\/p><p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif;\"><img loading=\"lazy\" class=\"alignnone wp-image-3535\" src=\"https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-01.jpg\" alt=\"\" width=\"600\" height=\"400\" srcset=\"https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-01.jpg 1000w, https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-01-300x200.jpg 300w, https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-01-768x511.jpg 768w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/span><\/p><p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif;\"><em>C\u00e1c k\u1ef9 s\u01b0 c\u1ee7a <strong>UW<\/strong>(University of Washington) \u0111\u00e3 thi\u1ebft k\u1ebf chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng pin \u0111\u1ea7u ti\u00ean c\u00f3 th\u1ec3 g\u1eedi v\u00e0 nh\u1eadn c\u00e1c cu\u1ed9c g\u1ecdi ch\u1ec9 b\u1eb1ng m\u1ed9t v\u00e0i microwatts \u0111i\u1ec7n. <strong>Mark Stone\/University of Washington\u200b<\/strong><\/em><\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">C\u00f4ng ngh\u1ec7 m\u1edbi n\u00e0y \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y chi ti\u1ebft trong m\u1ed9t b\u00e0i b\u00e1o \u0111\u0103ng tr\u00ean t\u1ea1p ch\u00ed K\u1ef7 y\u1ebfu c\u1ee7a Hi\u1ec7p h\u1ed9i m\u00e1y t\u00ednh v\u1ec1 c\u00e1c c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng t\u00e1c, di \u0111\u1ed9ng, thi\u1ebft b\u1ecb \u0111eo v\u00e0 c\u00e1c c\u00f4ng ngh\u1ec7 ph\u1ed5 bi\u1ebfn kh\u00e1c. Link b\u00e0i b\u00e1o: <strong><a href=\"http:\/\/batteryfreephone.cs.washington.edu\/files\/batteryFreePhone.pdf\">Download<\/a> .<\/strong><\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">\u0110\u1ed3ng t\u00e1c gi\u1ea3 Shyam Gollakota, m\u1ed9t tr\u1ee3 l\u00fd gi\u1ea3ng d\u1ea1y t\u1ea1i Khoa Khoa h\u1ecdc v\u00e0 K\u1ef9 thu\u1eadt M\u00e1y t\u00ednh Paul G. Allen t\u1ea1i UW, cho bi\u1ebft: &#8220;Ch\u00fang t\u00f4i \u0111\u00e3 x\u00e2y d\u1ef1ng nh\u1eefng g\u00ec ch\u00fang t\u00f4i tin l\u00e0 chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng \u0111\u1ea7u ti\u00ean ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng g\u1ea7n nh\u01b0 b\u1eb1ng 0&#8221;. &#8220;\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau, \u0111i\u1ec7n tho\u1ea1i ti\u00eau thu n\u0103ng l\u01b0\u1ee3ng th\u1ea5p v\u00e0 ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean n\u0103ng l\u01b0\u1ee3ng thu th\u1eadp \u0111\u01b0\u1ee3c t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh, ch\u00fang t\u00f4i \u0111\u00e3 ph\u1ea3i suy ngh\u0129 c\u00e1ch thi\u1ebft k\u1ebf l\u1ea1i thi\u1ebft b\u1ecb n\u00e0y.&#8221;<\/span><\/p><div class=\"embeddedContent oembed-provider- oembed-provider-youtube\" style=\"text-align: center;\" data-align=\"center\" data-oembed=\"https:\/\/www.youtube.com\/watch?v=5f5JJTmbO4U\" data-oembed_provider=\"youtube\" data-resizetype=\"noresize\"><iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/5f5JJTmbO4U\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/div><p><span style=\"font-family: arial, helvetica, sans-serif;\">\u0110\u1ed9i ng\u0169 c\u00e1c nh\u00e0 khoa h\u1ecdc m\u00e1y t\u00ednh v\u00e0 k\u1ef9 s\u01b0 \u0111i\u1ec7n t\u1eed c\u1ee7a UW \u0111\u00e3 th\u1ef1c hi\u1ec7n b\u01b0\u1edbc \u0111i lo\u1ea1i b\u1ecf ph\u1ea7n truy\u1ec1n nh\u1eadn &#8211; chuy\u1ec3n \u0111\u1ed5i t\u00ednh hi\u1ec7u analog ti\u00eau t\u1ed1n n\u0103ng l\u01b0\u1ee3ng nh\u1ea5t c\u1ee7a c\u00f4ng ngh\u1ec7 di \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i, b\u1ed9 ph\u1eadn c\u00f3 ch\u1ee9c n\u0103ng chuy\u1ec3n \u0111\u1ed5i c\u00e1c t\u00edn hi\u1ec7u \u00e2m thanh th\u00e0nh d\u1eef li\u1ec7u s\u1ed1 \u0111\u1ec3 \u0111i\u1ec7n tho\u1ea1i c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c. Qu\u00e1 tr\u00ecnh n\u00e0y ti\u00eau th\u1ee5 r\u1ea5t nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng, \u0111i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn kh\u00f4ng th\u1ec3 thi\u1ebft k\u1ebf m\u1ed9t chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng thu th\u1eadp t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">Thay v\u00e0o \u0111\u00f3, \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng kh\u00f4ng pin t\u1ea1o ra nh\u1eefng rung \u0111\u1ed9ng nh\u1ecf trong micro v\u00e0 loa c\u1ee7a \u0111i\u1ec7n tho\u1ea1i \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng truy\u1ec1n v\u00e0 nh\u1eadn cu\u1ed9c g\u1ecdi.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">M\u1ed9t \u0103ng-ten k\u1ebft n\u1ed1i v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n \u0111i\u1ec7n t\u1eed tr\u00ean bo m\u1ea1ch chuy\u1ec3n \u0111\u1ed5i c\u00e1c t\u00edn hi\u1ec7u s\u00f3ng analog ph\u00e1t ra t\u1eeb c\u00e1c tr\u1ea1m di \u0111\u1ed9ng BTS. Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd n\u00e0y m\u00e3 h\u00f3a c\u00e1c m\u1eabu gi\u1ecdng n\u00f3i nh\u1eadn \u0111\u01b0\u1ee3c t\u1eeb c\u00e1c t\u00ednh hi\u1ec7u s\u00f3ng analog theo c\u00e1ch g\u1ea7n nh\u01b0 kh\u00f4ng t\u1ed1n n\u0103ng l\u01b0\u1ee3ng.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">\u0110\u1ec3 truy\u1ec1n \u00e2m thanh, \u0111i\u1ec7n tho\u1ea1i s\u1eed d\u1ee5ng c\u00e1c rung \u0111\u1ed9ng t\u1eeb thi\u1ebft b\u1ecb microphone \u0111\u1ec3 m\u00e3 h\u00f3a c\u00e1c m\u1eabu gi\u1ecdng n\u00f3i th\u00e0nh c\u00e1c t\u00edn hi\u1ec7u ph\u1ea3n x\u1ea1. \u0110\u1ec3 nh\u1eadn \u00e2m thanh, \u0111i\u1ec7n tho\u1ea1i \u0111\u00e3 m\u00e3 h\u00f3a c\u00e1c t\u00ednh hi\u1ec7u s\u00f3ng th\u00e0nh c\u00e1c rung \u0111\u1ed9ng v\u00e0 ph\u00e1t ra loa khi ng\u01b0\u1eddi d\u00f9ng nh\u1eadn cu\u1ed9c g\u1ecdi. Tr\u00ean m\u1eabu \u0111i\u1ec7n tho\u1ea1i th\u1eed nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i nh\u1ea5n m\u1ed9t n\u00fat \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i ch\u1ebf \u0111\u1ed9 gi\u1eefa nghe v\u00e0 n\u00f3i.<\/span><\/p><p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif;\"><img loading=\"lazy\" class=\"alignnone wp-image-3532\" src=\"https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-02.jpg\" alt=\"\" width=\"600\" height=\"400\" srcset=\"https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-02.jpg 1000w, https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-02-300x200.jpg 300w, https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-02-768x511.jpg 768w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/span><\/p><p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif;\"><em>\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng pin \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi UW c\u00f3 th\u1ec3 c\u1ea3m nh\u1eadn d\u01b0\u1ee3c gi\u1ecdng n\u00f3i, k\u00edch ho\u1ea1t t\u1ea1i nghe v\u00e0 truy\u1ec1n nh\u1eadn giao ti\u1ebfp \u00e2m thanh hai chi\u1ec1u theo th\u1eddi gian th\u1ef1c. \u0110i\u1ec7n tho\u1ea1i \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n b\u1edfi c\u00e1c t\u00edn hi\u1ec7u s\u00f3ng radio v\u00e0 \u00e1nh s\u00e1ng t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh. <strong>Mark Stone\/University of Washington<\/strong><\/em><\/span><\/p><p>\u00a0<\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">S\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n linh ki\u1ec7n \u0111i\u1ec7n t\u1eed s\u1eb5n c\u00f3 \u0111\u1ec3 t\u1ea1o ra bo m\u1ea1ch, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ea1y demo ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n c\u1ee7a \u0111i\u1ec7n tho\u1ea1i nh\u01b0 truy\u1ec1n nh\u1eadn \u00e2m thanh, nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb n\u00fat nh\u1ea5n. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m Skype \u0111\u1ec3 th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi \u0111i, quay s\u1ed1, nh\u1eadn cu\u1ed9c g\u1ecdi \u0111\u1ebfn t\u1eeb \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng pin.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">&#8220;\u0110i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng l\u00e0 thi\u1ebft b\u1ecb ch\u00fang ta ph\u1ee5 thu\u1ed9c nhi\u1ec1u h\u1ea5t trong ng\u00e0y h\u00f4m nay. V\u00ec v\u1eady, n\u1ebfu c\u00f3 m\u1ed9t thi\u1ebft b\u1ecb b\u1ea1n mu\u1ed1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng Pin, \u0111\u00f3 l\u00e0 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng&#8221;, Joshua Smith l\u00e3nh \u0111\u1ea1o v\u00e0 giao s\u01b0 c\u1ee7a Trung t\u00e2m Allen v\u00e0 Khoa k\u1ef9 thu\u1eadt \u0111i\u1ec7n c\u1ee7a UW n\u00f3i. &#8220;V\u1edbi b\u1ea3n concept ch\u00fang t\u00f4i ph\u00e1t tri\u1ec3n ng\u00e0y h\u00f4m nay, ch\u00fang t\u00f4i ngh\u0129 r\u1eb1ng n\u00f3 c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb trong t\u01b0\u01a1ng lai&#8221;.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">Nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 thi\u1ebft k\u1ebf m\u1ed9t tr\u1ea1m BTS \u0111\u1ec3 truy\u1ec1n nh\u1eadn t\u00edn hi\u1ec7u s\u00f3ng radio. Nh\u01b0ng c\u00f4ng ngh\u1ec7 n\u00e0y trong t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 t\u00edch h\u1ee3p v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1c tr\u1ea1m ph\u00e1t s\u00f3ng di \u0111\u1ed9ng ho\u1eb7c c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Wifi \u0111\u1ec3 s\u1eed d\u1ee5ng th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">&#8220;B\u1ea1n c\u00f3 th\u1ec3 t\u01b0\u1edfng t\u01b0\u1ee3ng trong t\u01b0\u01a1ng lai t\u1ea5t c\u1ea3 c\u00e1c tr\u1ea1m ph\u00e1t s\u00f3ng ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn wifi c\u00f3 th\u1ec3 t\u00edch h\u1ee3p n\u1ec1n t\u1ea3ng c\u00f4ng ngh\u1ec7 c\u1ee7a ch\u00fang t\u00f4i&#8221;, \u0111\u1ed3ng t\u00e1c gi\u1ea3 Vamsi Talle, m\u1ed9t nghi\u00ean c\u1ee9u sinh ng\u00e0nh K\u1ef9 thu\u1eadt \u0111i\u1ec7n v\u00e0 c\u00e1c c\u00f4ng s\u1ef1 c\u1ee7a trung t\u00e2m Allen mong mu\u1ed1n. &#8220;N\u1ebfu m\u1ed7i nh\u00e0 \u0111\u1ec1u s\u1eed d\u1ee5ng b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Wifi c\u00f3 t\u00edch h\u1ee3p c\u00f4ng ngh\u1ec7 c\u1ee7a ch\u00fang t\u00f4i th\u00ec b\u1ea1n c\u00f3 th\u1ec3 s\u1ef1 d\u1ee5ng \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng Pin \u1edf m\u1ecdi n\u01a1i&#8221;.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng pin v\u1eabn y\u00eau c\u1ea7u m\u1ed9t s\u1ed1 nh\u1ecf n\u0103ng l\u01b0\u1ee3ng cung c\u1ea5p \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 thao t\u00e1c. B\u1ea3n thi\u1ebft k\u1ebf m\u1eabu \u0111\u00e3 s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng kho\u1ea3ng 3.5 microwatts.<\/span><\/p><p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif;\"><img loading=\"lazy\" class=\"alignnone wp-image-3533\" src=\"https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-03.jpg\" alt=\"\" width=\"600\" height=\"473\" srcset=\"https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-03.jpg 640w, https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-03-300x236.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/span><br \/><span style=\"font-family: arial, helvetica, sans-serif;\"><em>Hai m\u1eb7t c\u1ee7a \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng pin<\/em><\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u1edf UW \u0111\u00e3 ch\u1ea1y th\u1eed nghi\u1ec7m l\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 thu th\u1eadp m\u1ed9t s\u1ed1 nh\u1ecf n\u0103ng l\u01b0\u1ee3ng t\u1eeb hai ngu\u1ed3n kh\u00e1c nhau. B\u1ea3n m\u1eabu \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng pin c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng thu \u0111\u01b0\u1ee3c t\u1eeb c\u00e1c t\u00edn hi\u1ec7u s\u00f3ng v\u00f4 tuy\u1ebfn ph\u00e1t ra t\u1eeb tr\u1ea1m g\u1ed1c c\u00e1ch xa kho\u1ea3ng 31 feet (9,5m).<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">S\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng thu t\u1eeb \u00e1nh s\u00e1ng m\u00f4i tr\u01b0\u1eddng xung quanh v\u1edbi c\u00e1c t\u1ebf b\u00e0o n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi nh\u1ecf &#8211; k\u00edch th\u01b0\u1edbc kho\u1ea3ng 1 h\u1ea1t g\u1ea1o &#8211; thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 giao ti\u1ebfp v\u1edbi tr\u1ea1m BTS c\u00e1ch \u0111\u00f3 50 feet (~15.3m).<\/span><\/p><p style=\"text-align: center;\"><img loading=\"lazy\" class=\"alignnone wp-image-3534\" src=\"https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-04.jpg\" alt=\"\" width=\"600\" height=\"400\" srcset=\"https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-04.jpg 1000w, https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-04-300x200.jpg 300w, https:\/\/eplusi.net\/wp-content\/uploads\/2021\/07\/dien-thoai-khong-dung-pin-04-768x511.jpg 768w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p><p style=\"text-align: center;\">\u00a0<\/p><p style=\"text-align: center;\"><span style=\"font-family: arial, helvetica, sans-serif;\"><em>Nh\u00f3m nghi\u00ean c\u1ee9u thu\u1ed9c Khoa K\u1ef9 thu\u1eadt \u0111i\u1ec7n v\u00e0 Khoa Khoa h\u1ecdc m\u00e1y t\u00ednh &amp; K\u1ef9 thu\u1eadt Allen c\u1ee7a UW bao g\u1ed3m: (tr\u00e1i sang ph\u1ea3i) Vamsi Talla, Wu Meiling, Sam Crow, Joshua Smith, Bryce Kellogg and Shyam Gollakota. <strong>Mark Stone\/University of Washington<\/strong><\/em><\/span><\/p><p>\u00a0<\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">Nhi\u1ec1u c\u00f4ng ngh\u1ec7 kh\u00f4ng d\u00f9ng pin kh\u00e1c d\u1ef1a v\u00e0o ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng xung quanh, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c gia t\u1ed1c, t\u00e1i t\u1ea1o n\u0103ng l\u01b0\u1ee3ng s\u1eed d\u1ee5ng cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng li\u00ean t\u1ee5c. Th\u1ee9c d\u1eady \u0111\u1ecdc v\u00e0 sau \u0111\u00f3 ng\u1ee7 m\u1ed9t hai ph\u00fat \u0111\u1ec3 thi\u1ebft b\u1ecb thu th\u1eadp \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 ti\u1ebfp theo. Tuy nhi\u00ean ng\u01b0\u1ee3c l\u1ea1i, cu\u1ed9c g\u1ecdi tr\u00ean \u0111i\u1ec7n tho\u1ea1i y\u00eau c\u1ea7u thi\u1ebft b\u1ecb ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c trong th\u1eddi gian tr\u00f2 chuy\u1ec7n k\u00e9o d\u00e0i.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">\u0110\u1ed3ng t\u00e1c gi\u1ea3 Bryce Kellogg, m\u1ed9t sinh vi\u00ean ng\u00e0nh K\u1ef9 thu\u1eadt \u0111i\u1ec7n c\u1ee7a UW, cho bi\u1ebft: &#8220;B\u1ea1n kh\u00f4ng th\u1ec3 n\u00e0o ch\u1edd 1 ph\u00fat \u0111\u1ec3 \u0111i\u1ec7n tho\u1ea1i ng\u1ee7 v\u00e0 thu th\u1eadp \u0111\u1ee7 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 truy\u1ec1n t\u1ea3i cu\u1ed9c g\u1ecdi&#8221;. &#8220;\u0110\u00f3 l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t &#8211; l\u01b0\u1ee3ng \u0111i\u1ec7n m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 thu th\u1eadp \u0111\u01b0\u1ee3c t\u1eeb s\u00f3ng radio v\u00e0 \u00e1nh s\u00e1ng t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh lu\u00f4n giao \u0111\u1ed9ng t\u1eeb 1 \u0111\u1ebfn 10 microwatts. V\u00ec v\u1eady, c\u00e1c ho\u1ea1t \u0111\u1ed9ng g\u1ecdi \u0111i\u1ec7n th\u1eddi gian th\u1ef1c kh\u00f3 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n n\u1ebfu kh\u00f4ng ph\u00e1t tri\u1ec3n m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p m\u1edbi trong vi\u1ec7c truy\u1ec1n nh\u1eadn l\u1eddi n\u00f3i&#8221;.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">Th\u1eddi gian t\u1edbi, nh\u00f3m nghi\u00ean c\u1ee9u d\u1ef1 \u0111\u1ecbnh t\u1eadp trung v\u00e0o vi\u1ec7c c\u1ea3i ti\u1ebfn ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng pin v\u00e0 vi\u1ec7c m\u00e3 h\u00f3a c\u00e1c cu\u1ed9c tr\u00f2 chuy\u1ec7n \u0111\u1ec3 b\u1ea3m b\u1ea3o \u00e0n to\u00e0n b\u1ea3o m\u1eadt. Nh\u00f3m nghi\u00ean c\u1ee9u c\u0169ng \u0111ang l\u00e0m vi\u1ec7c \u0111\u1ec3 truy\u1ec1n video qua \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng pin c\u00f3 th\u00eam t\u00ednh n\u0103ng hi\u1ec3n th\u1ecb tr\u1ef1c quan cho \u0111i\u1ec7n tho\u1ea1i nh\u01b0 s\u1eed d\u1ee5ng m\u00e0n h\u00ecnh E-Ink ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng th\u1ea5p.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u01b0\u1ee3c t\u00e0i tr\u1ee3 b\u1edfi Qu\u1ef9 Khoa h\u1ecdc Qu\u1ed1c gia v\u00e0 Gi\u1ea3i th\u01b0\u1edfng Nghi\u00ean c\u1ee9u Khoa h\u1ecdc c\u1ee7a Google.<\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\">Nhi\u1ec1u th\u00f4ng tin b\u1ea1n c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o: <a href=\"http:\/\/batteryfreephone.cs.washington.edu\/\"><span style=\"color: #0000ff;\">batteryfreephone.cs.washington.edu<\/span><\/a> ho\u1eb7c li\u00ean h\u1ec7 v\u1edbi nh\u00f3m nghi\u00ean c\u1ee9u v\u00e0o email: <span style=\"color: #0000ff;\">batteryfreephone@cs.washington.edu.<\/span><\/span><\/p><p><span style=\"font-family: arial, helvetica, sans-serif;\"><em><span style=\"color: #0000ff;\">Theo <a href=\"http:\/\/www.washington.edu\/news\/2017\/07\/05\/first-battery-free-cell-phone-makes-calls-by-harvesting-ambient-power\/\"><strong>UW News<\/strong><\/a><\/span><\/em><\/span><\/p><p>\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u0110i\u1ec7n tho\u1ea1i \u0111i \u0111\u1ed9ng kh\u00f4ng pin \u0111\u1ea7u ti\u00ean th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi b\u1eb1ng n\u0103ng l\u01b0\u1ee3ng thu th\u1eadp t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh qua s\u00f3ng \u0111i\u1ec7n t\u1eeb v\u00e0 \u00e1nh s\u00e1ng C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u thu\u1ed9c \u0110\u1ea1i h\u1ecdc Washington \u0111\u00e3 ph\u00e1t minh ra chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng kh\u00f4ng d\u00f9ng pin &#8211; m\u1ed9t b\u01b0\u1edbc ti\u1ebfn nh\u1ea3y v\u1ecdt<a class=\"more-link\" href=\"https:\/\/eplusi.net\/en\/news\/dien-thoai-khong-pin-thuc-hien-cuoc-goi-dau-tien-tren-the-gioi\/\">Continue reading <span class=\"screen-reader-text\">&#8220;\u0110i\u1ec7n tho\u1ea1i kh\u00f4ng pin th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi&#8221;<\/span><\/a><\/p>","protected":false},"author":3,"featured_media":3686,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uf_show_specific_survey":0,"_uf_disable_surveys":false},"categories":[7],"tags":[],"_links":{"self":[{"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/posts\/3685"}],"collection":[{"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/comments?post=3685"}],"version-history":[{"count":15,"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/posts\/3685\/revisions"}],"predecessor-version":[{"id":7802,"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/posts\/3685\/revisions\/7802"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/media\/3686"}],"wp:attachment":[{"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/media?parent=3685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/categories?post=3685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eplusi.net\/en\/wp-json\/wp\/v2\/tags?post=3685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}