SE462935B - Saett och anordning foer hindrande av extern detektering av signalinformation - Google Patents

Saett och anordning foer hindrande av extern detektering av signalinformation

Info

Publication number
SE462935B
SE462935B SE8900288A SE8900288A SE462935B SE 462935 B SE462935 B SE 462935B SE 8900288 A SE8900288 A SE 8900288A SE 8900288 A SE8900288 A SE 8900288A SE 462935 B SE462935 B SE 462935B
Authority
SE
Sweden
Prior art keywords
signal
pseudo
video
sequences
line
Prior art date
Application number
SE8900288A
Other languages
English (en)
Swedish (sv)
Other versions
SE8900288D0 (sv
SE8900288L (sv
Inventor
P Lindholm
Original Assignee
Cominvest Res Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cominvest Res Ab filed Critical Cominvest Res Ab
Priority to SE8900288A priority Critical patent/SE462935B/sv
Publication of SE8900288D0 publication Critical patent/SE8900288D0/xx
Priority to JP50273890A priority patent/JP3148231B2/ja
Priority to DE69024483T priority patent/DE69024483T2/de
Priority to PCT/SE1990/000051 priority patent/WO1990009067A1/en
Priority to EP90902419A priority patent/EP0455699B1/en
Priority to US07/721,632 priority patent/US5157725A/en
Priority to AT90902419T priority patent/ATE132308T1/de
Priority to CA002045619A priority patent/CA2045619C/en
Priority to AU49675/90A priority patent/AU635915B2/en
Publication of SE8900288L publication Critical patent/SE8900288L/xx
Publication of SE462935B publication Critical patent/SE462935B/sv
Priority to NO912830A priority patent/NO179469C/no
Priority to FI913577A priority patent/FI103237B/fi
Priority to US07/944,427 priority patent/US5351292A/en
Priority to AU32171/93A priority patent/AU648455B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/42—Jamming having variable characteristics characterized by the control of the jamming frequency or wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
    • H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/14—Jamming or countermeasure used for a particular application for the transfer of light or images, e.g. for video-surveillance, for television or from a computer screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
    • H04K2203/32—Jamming or countermeasure characterized by the infrastructure components including a particular configuration of antennas

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Television Systems (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
SE8900288A 1989-01-26 1989-01-30 Saett och anordning foer hindrande av extern detektering av signalinformation SE462935B (sv)

Priority Applications (13)

Application Number Priority Date Filing Date Title
SE8900288A SE462935B (sv) 1989-01-30 1989-01-30 Saett och anordning foer hindrande av extern detektering av signalinformation
DE69024483T DE69024483T2 (de) 1989-01-30 1990-01-24 Verfahren und vorrichtung zur vorbeugung des externen nachweises der signalinformationen
AT90902419T ATE132308T1 (de) 1989-01-30 1990-01-24 Verfahren und vorrichtung zur vorbeugung des externen nachweises der signalinformationen
AU49675/90A AU635915B2 (en) 1989-01-26 1990-01-24 Method and apparatus for preventing external detection of signal information
PCT/SE1990/000051 WO1990009067A1 (en) 1989-01-26 1990-01-24 Method and apparatus for preventing external detection of signal information
EP90902419A EP0455699B1 (en) 1989-01-26 1990-01-24 Method and apparatus for preventing external detection of signal information
US07/721,632 US5157725A (en) 1989-01-26 1990-01-24 Method and apparatus for preventing external detection of signal information
JP50273890A JP3148231B2 (ja) 1989-01-26 1990-01-24 信号情報の外部検出を阻止する方法および装置
CA002045619A CA2045619C (en) 1989-01-26 1990-01-24 Method and apparatus for preventing external detection of signal information
NO912830A NO179469C (no) 1989-01-30 1991-07-19 Fremgangsmåte og apparat for å hindre ekstern avslöring av signaloverföring
FI913577A FI103237B (fi) 1989-01-30 1991-07-26 Menetelmä ja laite signaalitietojen ulkoisen detektoinnin estämiseksi
US07/944,427 US5351292A (en) 1989-01-26 1992-09-14 Method and apparatus for preventing external detection of signal information
AU32171/93A AU648455B2 (en) 1989-01-26 1993-02-03 Method and apparatus for preventing external detection of signal information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900288A SE462935B (sv) 1989-01-30 1989-01-30 Saett och anordning foer hindrande av extern detektering av signalinformation

Publications (3)

Publication Number Publication Date
SE8900288D0 SE8900288D0 (sv) 1989-01-30
SE8900288L SE8900288L (sv) 1990-07-27
SE462935B true SE462935B (sv) 1990-09-17

Family

ID=20374874

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8900288A SE462935B (sv) 1989-01-26 1989-01-30 Saett och anordning foer hindrande av extern detektering av signalinformation

Country Status (11)

Country Link
US (1) US5157725A (fi)
EP (1) EP0455699B1 (fi)
JP (1) JP3148231B2 (fi)
AT (1) ATE132308T1 (fi)
AU (2) AU635915B2 (fi)
CA (1) CA2045619C (fi)
DE (1) DE69024483T2 (fi)
FI (1) FI103237B (fi)
NO (1) NO179469C (fi)
SE (1) SE462935B (fi)
WO (1) WO1990009067A1 (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5351292A (en) * 1989-01-26 1994-09-27 Cominvest Research Ab Method and apparatus for preventing external detection of signal information
SE500276C2 (sv) * 1991-06-24 1994-05-24 Shield Research In Sweden Ab Förfarande och anordning för att förhindra extern detektering av signalinformation
IT1259383B (it) * 1992-04-02 1996-03-12 Dispositivo di protezione per computer e simili
US6304658B1 (en) 1998-01-02 2001-10-16 Cryptography Research, Inc. Leak-resistant cryptographic method and apparatus
US7587044B2 (en) 1998-01-02 2009-09-08 Cryptography Research, Inc. Differential power analysis method and apparatus
JP4097773B2 (ja) * 1998-04-20 2008-06-11 オリンパス株式会社 デジタル画像編集システム
EP1090480B1 (en) 1998-06-03 2019-01-09 Cryptography Research, Inc. Improved des and other cryptographic processes with leak minimization for smartcards and other cryptosystems
US6539092B1 (en) 1998-07-02 2003-03-25 Cryptography Research, Inc. Leak-resistant cryptographic indexed key update
US6804565B2 (en) * 2001-05-07 2004-10-12 Harman International Industries, Incorporated Data-driven software architecture for digital sound processing and equalization
WO2005114902A1 (ja) * 2004-05-24 2005-12-01 Nippon Telegraph And Telephone Corporation 情報漏洩防止装置及び情報漏洩防止方法
US9337949B2 (en) 2011-08-31 2016-05-10 Cablecam, Llc Control system for an aerially moved payload
US10469790B2 (en) * 2011-08-31 2019-11-05 Cablecam, Llc Control system and method for an aerially moved payload system
US9477141B2 (en) 2011-08-31 2016-10-25 Cablecam, Llc Aerial movement system having multiple payloads

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH623271A5 (fi) * 1977-11-15 1981-05-29 Hasler Ag
DE3127843A1 (de) * 1981-07-15 1983-05-26 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Verfahren zur verhinderung von "kompromittierender abstrahlung" bei der verarbeitung und uebertragung geheimer dateninformationen
GB8608172D0 (en) * 1986-04-03 1986-05-08 Walker S M Computer security devices
NO165698C (no) * 1988-07-05 1991-03-20 System Sikkerhet As System for beskyttelse mot avlytting av digitalt utstyr.

Also Published As

Publication number Publication date
NO179469B (no) 1996-07-01
AU3217193A (en) 1993-03-25
EP0455699B1 (en) 1995-12-27
SE8900288D0 (sv) 1989-01-30
AU635915B2 (en) 1993-04-08
US5157725A (en) 1992-10-20
NO912830D0 (no) 1991-07-19
ATE132308T1 (de) 1996-01-15
JPH04504639A (ja) 1992-08-13
FI103237B1 (fi) 1999-05-14
FI913577A0 (fi) 1991-07-26
WO1990009067A1 (en) 1990-08-09
EP0455699A1 (en) 1991-11-13
DE69024483T2 (de) 1996-07-25
NO179469C (no) 1996-10-09
CA2045619A1 (en) 1990-07-27
DE69024483D1 (de) 1996-02-08
CA2045619C (en) 2000-07-25
SE8900288L (sv) 1990-07-27
FI103237B (fi) 1999-05-14
AU4967590A (en) 1990-08-24
NO912830L (no) 1991-09-25
JP3148231B2 (ja) 2001-03-19
AU648455B2 (en) 1994-04-21

Similar Documents

Publication Publication Date Title
SE462935B (sv) Saett och anordning foer hindrande av extern detektering av signalinformation
EP0424415B1 (en) System for protecting digital equipment against remote access
DE102015224158A1 (de) Signalsender für Pilotton-Navigation
US5216713A (en) Method and apparatus for preventing extraneous detection of signal information
EP3084457A2 (en) Radio frequency safety switch with adjustable switching level for mri systems
DE69301128T2 (de) Elektrisches Gerät mit geringer Ausstrahlung des elektrischen Felds
US5351292A (en) Method and apparatus for preventing external detection of signal information
US20020008504A1 (en) Method and apparatus for monitoring live electrical equipment at high or medium voltage
US2741722A (en) Television pattern generator
KR20170137654A (ko) 차폐된 평형 선로를 통해 신호를 전송하기 위한 장치 및 방법
US2645711A (en) Panoramic receiver
US4109280A (en) Television interface device
GB2186466A (en) Security apparatus for a video display unit
US2792508A (en) Pulse generator
US3009105A (en) Electrical stroboscope
DE102004013492B4 (de) Vorrichtung, handtragbares Testgerät und Verfahren zum Einkoppeln von elektrischen Signalen in Leitungen oder Kabel zu Ortungszwecken
Ciocioi et al. Electromagnetic interference in a multiconductor transmission system-MTL.
US4107737A (en) Synchronization signal powered television transmitter
US1713618A (en) Electric picture-transmitting apparatus
EP4148447A1 (de) Pilotton-signal-generator, magnetresonanztomograph, verfahren zum übertragen eines synchronisierungssignals und computerprogrammprodukt
US3096489A (en) Tuning fork tone generator
DE536863C (de) Einrichtung zur Fernablesung der Angaben von Messgeraeten oder der Stellung beweglicher Organe unter Verwendung von piezoelektrischen Kristallen
USRE12149E (en) Beissited aug
McDonald et al. Shield Grounding and Circuit Grounding Effectiveness in Interference Reduction in the 50 Hz to 15 kHz Frequency Region
SE423652B (sv) Anordning for atergivning av variabla storheter

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8900288-5

Format of ref document f/p: F

NUG Patent has lapsed