ATE125631T1 - Kontinuierlich bereitgestellter impulszugprozessor hoher zuverlässigkeit. - Google Patents

Kontinuierlich bereitgestellter impulszugprozessor hoher zuverlässigkeit.

Info

Publication number
ATE125631T1
ATE125631T1 AT88904099T AT88904099T ATE125631T1 AT E125631 T1 ATE125631 T1 AT E125631T1 AT 88904099 T AT88904099 T AT 88904099T AT 88904099 T AT88904099 T AT 88904099T AT E125631 T1 ATE125631 T1 AT E125631T1
Authority
AT
Austria
Prior art keywords
pulse
pulse train
modules
pulses
train
Prior art date
Application number
AT88904099T
Other languages
English (en)
Inventor
George J Lichtblau
Original Assignee
Checkpoint Systems Inc
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 Checkpoint Systems Inc filed Critical Checkpoint Systems Inc
Application granted granted Critical
Publication of ATE125631T1 publication Critical patent/ATE125631T1/de

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2488—Timing issues, e.g. synchronising measures to avoid signal collision, with multiple emitters or a single emitter and receiver
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2471—Antenna signal processing by receiver or emitter

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Air Bags (AREA)
  • Time-Division Multiplex Systems (AREA)
AT88904099T 1987-04-13 1988-04-12 Kontinuierlich bereitgestellter impulszugprozessor hoher zuverlässigkeit. ATE125631T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/037,647 US4779077A (en) 1987-04-13 1987-04-13 Continuously armed high reliability pulse train processor

Publications (1)

Publication Number Publication Date
ATE125631T1 true ATE125631T1 (de) 1995-08-15

Family

ID=21895497

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88904099T ATE125631T1 (de) 1987-04-13 1988-04-12 Kontinuierlich bereitgestellter impulszugprozessor hoher zuverlässigkeit.

Country Status (5)

Country Link
US (1) US4779077A (de)
EP (1) EP0310655B1 (de)
AT (1) ATE125631T1 (de)
DE (1) DE3854218T2 (de)
WO (1) WO1988008181A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390779A4 (en) * 1988-06-20 1991-04-24 George J. Lichtblau Continuously armed high reliability pulse train processor
US5103209A (en) * 1989-01-09 1992-04-07 Checkpoint Systems, Inc. Electronic article surveillance system with improved differentiation
AU631170B2 (en) * 1989-01-09 1992-11-19 Checkpoint Systems, Inc. Electronic article surveillance system with improved differentiation
JPH0375894A (ja) * 1989-08-17 1991-03-29 Fuji Electric Co Ltd 磁気マーカーの識別方法
US4975968A (en) * 1989-10-27 1990-12-04 Spatial Dynamics, Ltd. Timed dielectrometry surveillance method and apparatus
US5300922A (en) * 1990-05-29 1994-04-05 Sensormatic Electronics Corporation Swept frequency electronic article surveillance system having enhanced facility for tag signal detection
SE504899C2 (sv) * 1994-05-16 1997-05-26 Leif Aasbrink Anordning för att förhindra störningar i elektroniska larmsystem
JPH0962952A (ja) * 1995-08-29 1997-03-07 Maspro Denkoh Corp 盗難防止システム
JP3202155B2 (ja) * 1995-10-18 2001-08-27 株式会社小糸製作所 車輌用灯具の反射鏡及びその形成方法
DE19850928C2 (de) * 1997-11-07 2001-06-28 Leuze Electronic Gmbh & Co Vorrichtung zur bidirektionalen Übertragung von Datenworten
US6133829A (en) * 1999-03-05 2000-10-17 Frl, Inc. Walk-through metal detector system and method
US7592596B2 (en) * 2005-06-03 2009-09-22 Ge Medical Systems Israel, Ltd Methods and systems for medical imaging
US7817015B1 (en) * 2005-09-29 2010-10-19 Tc License Ltd. Floating threshold for data detection in a RFID tag

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810147A (en) * 1971-12-30 1974-05-07 G Lichtblau Electronic security system
US3863244A (en) * 1972-06-14 1975-01-28 Lichtblau G J Electronic security system having improved noise discrimination
US3967161A (en) * 1972-06-14 1976-06-29 Lichtblau G J A multi-frequency resonant tag circuit for use with an electronic security system having improved noise discrimination
US3828337A (en) * 1973-08-20 1974-08-06 G Lichtblau Noise rejection circuitry
US3938044A (en) * 1973-11-14 1976-02-10 Lichtblau G J Antenna apparatus for an electronic security system
US3913219A (en) * 1974-05-24 1975-10-21 Lichtblau G J Planar circuit fabrication process
US3961322A (en) * 1974-07-02 1976-06-01 Lichtblau G J Real time signal discrimination circuitry
US4021705A (en) * 1975-03-24 1977-05-03 Lichtblau G J Resonant tag circuits having one or more fusible links
US4117466A (en) * 1977-03-14 1978-09-26 Lichtblau G J Beat frequency interference rejection circuit
US4168496A (en) * 1977-10-05 1979-09-18 Lichtblau G J Quasi-stationary noise cancellation system
US4243980A (en) * 1978-02-17 1981-01-06 Lichtblau G J Antenna system for electronic security installations
US4260990A (en) * 1979-11-08 1981-04-07 Lichtblau G J Asymmetrical antennas for use in electronic security systems
US4251808A (en) * 1979-11-15 1981-02-17 Lichtblau G J Shielded balanced loop antennas for electronic security systems
US4498076A (en) * 1982-05-10 1985-02-05 Lichtblau G J Resonant tag and deactivator for use in an electronic security system
US4511888A (en) * 1983-06-29 1985-04-16 U.S. Currency Protection Corp. Dual signal electromagnetic article theft detector
US4642613A (en) * 1984-03-16 1987-02-10 Knogo Corporation Electronic theft detection apparatus with responder elements on protected articles

Also Published As

Publication number Publication date
EP0310655A1 (de) 1989-04-12
US4779077A (en) 1988-10-18
WO1988008181A1 (en) 1988-10-20
EP0310655B1 (de) 1995-07-26
DE3854218T2 (de) 1995-12-07
EP0310655A4 (en) 1991-04-17
DE3854218D1 (de) 1995-08-31

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties