Analysis of information leakage from display devices with LCD

Ho Seong Lee, Jong Gwan Yook, Kyuhong Sim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This study confirms the possibility of information leakage from two typical display devices with liquid crystal display (LCD). The compromising electromagnetic emanations are measured by log periodic antenna and wideband receiver in various distances. Frequency bands of leaked signal related to display on monitor exist in the range of several hundred megahertz with about ten megahertz bandwidth, which are different as display devices. Measured emanated signal is recovered as display by signal processing technique using software. In this process, timing parameters that necessary to composition of display are detected and clear recovered image is achieved by averaging multiple frames. The tendency of information leakage according to distance and display composition is analyzed by recovering emanated electromagnetic.

Original languageEnglish
Title of host publication2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1277-1280
Number of pages4
ISBN (Electronic)9781467388016
DOIs
Publication statusPublished - 2016 Oct 19
Event2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 - Seoul, Korea, Republic of
Duration: 2016 Aug 212016 Aug 25

Publication series

Name2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016

Other

Other2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016
CountryKorea, Republic of
CitySeoul
Period16/8/2116/8/25

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Instrumentation
  • Computer Networks and Communications

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    Lee, H. S., Yook, J. G., & Sim, K. (2016). Analysis of information leakage from display devices with LCD. In 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 (pp. 1277-1280). [7601330] (2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/URSIAP-RASC.2016.7601330