ATE324710T1 - Verfahren und einrichtung zum signalschutz - Google Patents

Verfahren und einrichtung zum signalschutz

Info

Publication number
ATE324710T1
ATE324710T1 AT02733675T AT02733675T ATE324710T1 AT E324710 T1 ATE324710 T1 AT E324710T1 AT 02733675 T AT02733675 T AT 02733675T AT 02733675 T AT02733675 T AT 02733675T AT E324710 T1 ATE324710 T1 AT E324710T1
Authority
AT
Austria
Prior art keywords
signals
keyboard
fed
called
matrix
Prior art date
Application number
AT02733675T
Other languages
English (en)
Inventor
Risto Paavilainen
Original Assignee
Comex Electronics 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20284048&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE324710(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Comex Electronics Ab filed Critical Comex Electronics Ab
Application granted granted Critical
Publication of ATE324710T1 publication Critical patent/ATE324710T1/de

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Radar Systems Or Details Thereof (AREA)
AT02733675T 2001-05-09 2002-05-08 Verfahren und einrichtung zum signalschutz ATE324710T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0101638A SE522004C2 (sv) 2001-05-09 2001-05-09 Förfarande och anordning för att minska förekomsten av röjande signaler från ett tangentbord

Publications (1)

Publication Number Publication Date
ATE324710T1 true ATE324710T1 (de) 2006-05-15

Family

ID=20284048

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02733675T ATE324710T1 (de) 2001-05-09 2002-05-08 Verfahren und einrichtung zum signalschutz

Country Status (8)

Country Link
US (1) US7356626B2 (de)
EP (1) EP1393452B1 (de)
JP (1) JP5177930B2 (de)
AT (1) ATE324710T1 (de)
DE (1) DE60210952T2 (de)
SE (1) SE522004C2 (de)
WO (1) WO2002091589A1 (de)
ZA (1) ZA200308710B (de)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792466A (en) * 1972-05-31 1974-02-12 Mos Technology Inc Keyboard entry system with n-key rollover and n-key lockout protection
US4035794A (en) * 1975-11-19 1977-07-12 Harris Corporation Radiation suppressed keyboard
US4918445A (en) * 1988-07-20 1990-04-17 Hewlett-Packard Company Scanning, row-column type keyboard
US5297201A (en) * 1992-10-13 1994-03-22 J.D. Technologies, Inc. System for preventing remote detection of computer data from tempest signal emissions
US5495389A (en) * 1993-10-08 1996-02-27 International Business Machines Corporation Personal computer with configurational flexibility and service features
FI100142B (fi) * 1995-12-14 1997-09-30 Nokia Display Products Oy Sähkömagneettisia häiriöitä vähentävä näppäimistörakenne
GB2309872A (en) * 1996-02-05 1997-08-06 Ibm Digital display apparatus
GB2333883B (en) * 1998-01-28 2002-10-16 Markus Guenther Kuhn Low cost countermeasure against compromising electromagnetic computer emanations
US6054940A (en) * 1998-02-09 2000-04-25 Gilbarco Inc. Keypad scanning security system
US6721423B1 (en) * 1999-01-28 2004-04-13 Ross J. Anderson Lost cost countermeasures against compromising electromagnetic computer emanations
US6413103B1 (en) * 2000-11-28 2002-07-02 Apple Computer, Inc. Method and apparatus for grounding microcoaxial cables inside a portable computing device
TWI273771B (en) * 2002-04-30 2007-02-11 Lite On Technology Corp Method for improving EMC of keyboard soft board

Also Published As

Publication number Publication date
EP1393452A1 (de) 2004-03-03
SE0101638L (sv) 2002-11-10
SE0101638D0 (sv) 2001-05-09
DE60210952T2 (de) 2007-01-25
EP1393452B1 (de) 2006-04-26
US7356626B2 (en) 2008-04-08
DE60210952D1 (de) 2006-06-01
JP2004533052A (ja) 2004-10-28
SE522004C2 (sv) 2004-01-07
WO2002091589A1 (en) 2002-11-14
ZA200308710B (en) 2004-09-28
US20040212520A1 (en) 2004-10-28
JP5177930B2 (ja) 2013-04-10

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Legal Events

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