CINXE.COM

<html><head><title>Video Signal Recovery from the Smartphones Touchscreen LCD Display - EUDL</title><link rel="icon" href="/images/favicon.ico"><link rel="stylesheet" type="text/css" href="/css/screen.css"><link rel="stylesheet" href="/css/zenburn.css"><meta http-equiv="Content-Type" content="charset=utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="Description" content=" In this paper we present several examples of video signal recovery from electromagnetic emissions generated by smartphones touchscreens as well as a number of measurements results performed in a specialized laboratory. We aimed the identification of the video signal parameters by using video images"><meta name="citation_title" content="Video Signal Recovery from the Smartphones Touchscreen LCD Display"><meta name="citation_publication_date" content="2019/09/17"><meta name="citation_author" content="Bogdan Trip"><meta name="citation_author" content="Vlad Butnariu"><meta name="citation_author" content="Alexandru Boitan"><meta name="citation_author" content="Simona Halunga"><meta name="citation_pdf_url" content="http://eudl.eu/pdf/10.1007/978-3-030-23976-3_9"><meta name="citation_conference_title" content="Future Access Enablers for Ubiquitous and Intelligent Infrastructures. 4th EAI International Conference, FABULOUS 2019, Sofia, Bulgaria, March 28-29, 2019, Proceedings"><meta name="citation_isbn" content="978-3-030-23976-3"><script type="text/javascript" src="https://services.eai.eu//load-signup-form/EAI"></script><script type="text/javascript" src="https://services.eai.eu//ujs/forms/signup/sso-client.js"></script><script type="text/javascript">if (!window.EUDL){ window.EUDL={} };EUDL.cas_url="https://account.eai.eu/cas";EUDL.profile_url="https://account.eai.eu";if(window.SSO){SSO.set_mode('eai')};</script><script type="text/javascript" src="/js/jquery.js"></script><script type="text/javascript" src="/js/jquery.cookie.js"></script><script type="text/javascript" src="/js/sso.js"></script><script type="text/javascript" src="/js/jscal2.js"></script><script type="text/javascript" src="/js/lang/en.js"></script><script type="text/javascript" src="/js/jquery.colorbox-min.js"></script><script type="text/javascript" src="/js/eudl.js"></script><script type="text/javascript" src="/js/article.js"></script><link rel="stylesheet" type="text/css" href="/css/jscal/jscal2.css"><link rel="stylesheet" type="text/css" href="/css/jscal/eudl/eudl.css"><link rel="stylesheet" type="text/css" href="/css/colorbox.css"></head><body><div id="eudl-page-head"><div id="eudl-page-header"><section id="user-area"><div><nav id="right-nav"><a href="/about">About</a> | <a href="/contact">Contact Us</a> | <a class="register" href="https://account.eai.eu/register?service=http%3A%2F%2Feudl.eu%2Fdoi%2F10.1007%2F978-3-030-23976-3_9">Register</a> | <a class="login" href="https://account.eai.eu/cas/login?service=http%3A%2F%2Feudl.eu%2Fdoi%2F10.1007%2F978-3-030-23976-3_9">Login</a></nav></div></section></div></div><div id="eudl-page"><header><section id="topbar-ads"><div><a href="https://eudl.eu/"><img class="eudl-logo-top" src="https://eudl.eu/images/eudl-logo.png"></a><a href="https://eai.eu/eai-community/?mtm_campaign=community_membership&mtm_kwd=eudl_community&mtm_source=eudl&mtm_medium=eudl_banner"><img class="eudl-ads-top" src="https://eudl.eu/images/upbanner.png"></a></div></section><section id="menu"><nav><a href="/proceedings" class="current"><span>Proceedings</span><span class="icon"></span></a><a href="/series" class=""><span>Series</span><span class="icon"></span></a><a href="/journals" class=""><span>Journals</span><span class="icon"></span></a><a href="/content" class=""><span>Search</span><span class="icon"></span></a><a href="http://eai.eu/">EAI</a></nav></section></header><div id="eaientran"></div><section id="content"><section id="article"><section class="cover-and-filters"><a href="https://eai.eu/eai-community/?mtm_campaign=community_membership&mtm_kwd=eudl_bids&mtm_source=eudl&mtm_medium=eudl_banner"><img src="https://eudl.eu/images/banner-outside2.png"></a></section><section class="info-and-search"><span class="article-proceedings-ref"><a href="/proceedings/FABULOUS/2019">Future Access Enablers for Ubiquitous and Intelligent Infrastructures. 4th EAI International Conference, FABULOUS 2019, Sofia, Bulgaria, March 28-29, 2019, Proceedings</a></span><p class="article-type">Research Article</p><h1>Video Signal Recovery from the Smartphones Touchscreen LCD Display</h1><section id="download"><a class="download-pdf" href="https://account.eai.eu/cas/login?service=http%3A%2F%2Feudl.eu%2Fdoi%2F10.1007%2F978-3-030-23976-3_9">Download</a><a class="eai-login" href="https://account.eai.eu/cas/login?service=http%3A%2F%2Feudl.eu%2Fdoi%2F10.1007%2F978-3-030-23976-3_9">(Requires a free EAI acccount)</a><div><span class="download">249 downloads</span></div></section><section class="meta-section cite-area"><dl class="main-metadata"><dt class="title" id="cite-switchers">Cite</dt> <dd class="value" id="cite-switchers"><a href="" class="bibtex">BibTeX</a> <a href="" class="plain-text">Plain Text</a></dd></dl></section><ul id="cite-blocks"><li class="bibtex"><pre>@INPROCEEDINGS{10.1007/978-3-030-23976-3_9, author={Bogdan Trip and Vlad Butnariu and Alexandru Boitan and Simona Halunga}, title={Video Signal Recovery from the Smartphones Touchscreen LCD Display}, proceedings={Future Access Enablers for Ubiquitous and Intelligent Infrastructures. 4th EAI International Conference, FABULOUS 2019, Sofia, Bulgaria, March 28-29, 2019, Proceedings}, proceedings_a={FABULOUS}, year={2019}, month={9}, keywords={Smartphones Touchscreen Video signal Recovery TEMPEST Compromising Emanations}, doi={10.1007/978-3-030-23976-3_9} } </pre></li><li class="plain-text"><div class="cite">Bogdan Trip<br>Vlad Butnariu<br>Alexandru Boitan<br>Simona Halunga<br>Year: 2019<br>Video Signal Recovery from the Smartphones Touchscreen LCD Display<br>FABULOUS<br>Springer<br>DOI: 10.1007/978-3-030-23976-3_9</div></li></ul><section id="authors"><span class="author-list">Bogdan Trip<sup>1</sup><sup>,*</sup>, Vlad Butnariu<sup>1</sup>, Alexandru Boitan<sup>1</sup>, Simona Halunga<sup>2</sup></span><ul class="affiliation-list"><li>1: The Special Telecommunications Service Bucharest</li><li>2: University Politehnica of Bucharest</li></ul><section class="corresponding-email">*Contact email: bogdan.tripc@gmail.com</section></section><section class="full-abstract"><h2>Abstract</h2><div><p>In this paper we present several examples of video signal recovery from electromagnetic emissions generated by smartphones touchscreens as well as a number of measurements results performed in a specialized laboratory. We aimed the identification of the video signal parameters by using video images that were especially selected to facilitate this process. The measurements were performed by comparing two smartphones that have different display resolutions. In the final part we will also present a method to identify the emission frequencies for these compromising emanations.</p></div></section><section class="metas-section"><section class="meta-section"><dl class="main-metadata"><dt class="title">Keywords</dt> <dd class="value">Smartphones Touchscreen Video signal Recovery TEMPEST Compromising Emanations</dd></dl></section><section class="meta-section"><dl class="main-metadata"><dt class="title">Published</dt> <dd class="value">2019-09-17</dd><dt class="title">Appears in</dt> <dd class="value"><a href="https://rd.springer.com/book/10.1007/978-3-030-23976-3">SpringerLink</a></dd></dl></section><section class="meta-section"><dl class="main-metadata"><dt class="title"></dt> <dd class="value"><a href="http://dx.doi.org/10.1007/978-3-030-23976-3_9">http://dx.doi.org/10.1007/978-3-030-23976-3_9</a></dd></dl></section></section><div class="copyright-block">Copyright © 2019–2025 ICST</div></section></section></section><div class="clear"></div><footer><div class="links"><a href="https://www.ebsco.com/" target="_blank"><img class="logo ebsco-logo" src="/images/ebsco.png" alt="EBSCO"></a><a href="https://www.proquest.com/" target="_blank"><img class="logo proquest-logo" src="/images/proquest.png" alt="ProQuest"></a><a href="https://dblp.uni-trier.de/db/journals/publ/icst.html" target="_blank"><img class="logo dblp-logo" src="/images/dblp.png" alt="DBLP"></a><a href="https://doaj.org/search?source=%7B%22query%22%3A%7B%22filtered%22%3A%7B%22filter%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22term%22%3A%7B%22index.publisher.exact%22%3A%22European%20Alliance%20for%20Innovation%20(EAI)%22%7D%7D%5D%7D%7D%2C%22query%22%3A%7B%22query_string%22%3A%7B%22query%22%3A%22european%20alliance%20for%20innovation%22%2C%22default_operator%22%3A%22AND%22%2C%22default_field%22%3A%22index.publisher%22%7D%7D%7D%7D%7Dj" target="_blank"><img class="logo doaj-logo" src="/images/doaj.jpg" alt="DOAJ"></a><a href="https://www.portico.org/publishers/eai/" target="_blank"><img class="logo portico-logo" src="/images/portico.png" alt="Portico"></a><a href="http://eai.eu/" target="_blank"><img class="logo eai-logo" src="/images/eai.png"></a></div></footer></div><div class="footer-container"><div class="footer-width"><div class="footer-column logo-column"><a href="https://eai.eu/"><img src="https://eudl.eu/images/logo_new-1-1.png" alt="EAI Logo"></a></div><div class="footer-column"><h4>About EAI</h4><ul><li><a href="https://eai.eu/who-we-are/">Who We Are</a></li><li><a href="https://eai.eu/leadership/">Leadership</a></li><li><a href="https://eai.eu/research-areas/">Research Areas</a></li><li><a href="https://eai.eu/partners/">Partners</a></li><li><a href="https://eai.eu/media-center/">Media Center</a></li></ul></div><div class="footer-column"><h4>Community</h4><ul><li><a href="https://eai.eu/eai-community/">Membership</a></li><li><a href="https://eai.eu/conferences/">Conference</a></li><li><a href="https://eai.eu/recognition/">Recognition</a></li><li><a href="https://eai.eu/corporate-sponsorship">Sponsor Us</a></li></ul></div><div class="footer-column"><h4>Publish with EAI</h4><ul><li><a href="https://eai.eu/publishing">Publishing</a></li><li><a href="https://eai.eu/journals/">Journals</a></li><li><a href="https://eai.eu/proceedings/">Proceedings</a></li><li><a href="https://eai.eu/books/">Books</a></li><li><a href="https://eudl.eu/">EUDL</a></li></ul></div></div></div><script type="text/javascript" src="https://eudl.eu/js/gacode.js"></script><script src="/js/highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script><script type="application/ld+json">{"@context":"http://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"http://eudl.eu","name":"Home","image":null}},{"@type":"ListItem","position":2,"item":{"@id":"http://eudl.eu/proceedings","name":"Proceedings","image":null}},{"@type":"ListItem","position":3,"item":{"@id":"http://eudl.eu/proceedings?by_acronym=\"FABULOUS\"","name":"FABULOUS","image":null}},{"@type":"ListItem","position":4,"item":{"@id":"http://eudl.eu/proceedings?by_acronym=\"FABULOUS\"/2019","name":"2019","image":null}},{"@type":"ListItem","position":1,"item":{"@id":"http://eudl.eu/doi/10.1007/978-3-030-23976-3_9","name":"Video Signal Recovery from the Smartphones Touchscreen LCD Display","image":null}}]}</script></body></html>