DE69509609D1 - Sender für gepulstes elektronisches Warenüberwachungssystem - Google Patents

Sender für gepulstes elektronisches Warenüberwachungssystem

Info

Publication number
DE69509609D1
DE69509609D1 DE69509609T DE69509609T DE69509609D1 DE 69509609 D1 DE69509609 D1 DE 69509609D1 DE 69509609 T DE69509609 T DE 69509609T DE 69509609 T DE69509609 T DE 69509609T DE 69509609 D1 DE69509609 D1 DE 69509609D1
Authority
DE
Germany
Prior art keywords
transmitter
surveillance system
electronic goods
pulsed electronic
goods surveillance
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69509609T
Other languages
English (en)
Other versions
DE69509609T2 (de
Inventor
Brent Balch
Steve Embling
Dave Roberson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sensormatic Electronics Corp
Original Assignee
Sensormatic Electronics Corp
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 Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Publication of DE69509609D1 publication Critical patent/DE69509609D1/de
Application granted granted Critical
Publication of DE69509609T2 publication Critical patent/DE69509609T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Near-Field Transmission Systems (AREA)
  • Transmitters (AREA)
DE69509609T 1994-08-30 1995-06-16 Sender für gepulstes elektronisches Warenüberwachungssystem Expired - Fee Related DE69509609T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/297,809 US5640693A (en) 1994-08-30 1994-08-30 Transmitter for pulsed electronic article surveillance systems

Publications (2)

Publication Number Publication Date
DE69509609D1 true DE69509609D1 (de) 1999-06-17
DE69509609T2 DE69509609T2 (de) 1999-11-11

Family

ID=23147845

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69509609T Expired - Fee Related DE69509609T2 (de) 1994-08-30 1995-06-16 Sender für gepulstes elektronisches Warenüberwachungssystem

Country Status (6)

Country Link
US (1) US5640693A (de)
EP (1) EP0701234B1 (de)
JP (1) JPH0897732A (de)
BR (1) BR9503829A (de)
CA (1) CA2149500C (de)
DE (1) DE69509609T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2744578B1 (fr) * 1996-02-06 1998-04-30 Motorola Semiconducteurs Amlificateur hautes frequences
US5990791A (en) 1997-10-22 1999-11-23 William B. Spargur Anti-theft detection system
US5969659A (en) * 1997-11-28 1999-10-19 Sensormatic Electronics Corporation Analog to digital converters with extended dynamic range
US6118378A (en) * 1997-11-28 2000-09-12 Sensormatic Electronics Corporation Pulsed magnetic EAS system incorporating single antenna with independent phasing
US6188310B1 (en) 1997-11-28 2001-02-13 Sensormatic Electronics Corporation Natural frequency measurement of magnetic markers
US5995002A (en) * 1997-11-28 1999-11-30 Sensormatic Electronics Corporation Line synchronized delays for multiple pulsed EAS systems
US5909178A (en) * 1997-11-28 1999-06-01 Sensormatic Electronics Corporation Signal detection in high noise environments
TW512595B (en) * 1999-03-04 2002-12-01 Benq Corp Signal transmission circuit for wireless cellular phone
US6750768B2 (en) 2002-04-15 2004-06-15 Wg Security Products, Inc. EAS system employing pseudorandom coding system and method
US6753821B2 (en) * 2002-04-22 2004-06-22 Wg Security Products, Inc. Method and arrangement of antenna system of EAS
US20040075740A1 (en) * 2002-10-18 2004-04-22 Murakami Corporation Transmitter for surveillance camera system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714653A (en) * 1967-12-20 1973-01-30 Gen Electric Radar system
US4268797A (en) * 1979-03-28 1981-05-19 Westinghouse Electric Corp. Self-pulsed microwave power amplifier
US5239696A (en) * 1991-10-15 1993-08-24 Sensormatic Electronics Corporation Linear power amplifier utilizing current feedback

Also Published As

Publication number Publication date
CA2149500C (en) 2004-01-27
EP0701234B1 (de) 1999-05-12
DE69509609T2 (de) 1999-11-11
EP0701234A1 (de) 1996-03-13
JPH0897732A (ja) 1996-04-12
US5640693A (en) 1997-06-17
CA2149500A1 (en) 1996-03-01
BR9503829A (pt) 1996-09-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SENSORMATIC ELECTRONICS CORP., BOCA RATON, FLA., U

8339 Ceased/non-payment of the annual fee